Merge branch 'master' into uni2work

Small refactor

.envrc

@@ -0,0 +1 @@
+use flake

CHANGELOG.md

@@ -1,3 +1,15 @@
+## 0.30
+
+* Fix some C symbol blake2b prefix to be cryptonite_ prefix (fix mixing with other C library)
+* add hmac-lazy
+* Fix compilation with GHC 9.2
+* Drop support for GHC8.0, GHC8.2, GHC8.4, GHC8.6
+
+## 0.29
+
+* advance compilation with gmp breakage due to change upstream
+* Add native EdDSA support
+
 ## 0.28
 
 * Add hash constant time capability

Crypto/Hash.hs

@@ -40,6 +40,8 @@ module Crypto.Hash
     , hash
     , hashPrefix
     , hashlazy
+    , hashPutContext
+    , hashGetContext
     -- * Hash algorithms
     , module Crypto.Hash.Algorithms
     ) where
@@ -51,7 +53,7 @@ import           Crypto.Internal.Compat (unsafeDoIO)
 import           Crypto.Hash.Types
 import           Crypto.Hash.Algorithms
 import           Foreign.Ptr (Ptr, plusPtr)
-import           Crypto.Internal.ByteArray (ByteArrayAccess)
+import           Crypto.Internal.ByteArray (ByteArrayAccess, ByteArray)
 import qualified Crypto.Internal.ByteArray as B
 import qualified Data.ByteString.Lazy as L
 import           Data.Word (Word8)
@@ -159,3 +161,16 @@ digestFromByteString = from undefined
             unsafeFreeze muArray
           where
             count = CountOf (B.length ba)
+
+hashPutContext :: forall a ba. (HashAlgorithmResumable a, ByteArray ba) => Context a -> ba
+hashPutContext !c = B.allocAndFreeze (hashInternalContextSize (undefined :: a)) $ \(ptr :: Ptr Word8) ->
+  B.withByteArray c $ \(ctx :: Ptr (Context a)) -> hashInternalPutContextBE ctx ptr
+
+hashGetContext :: forall a ba. (HashAlgorithmResumable a, ByteArrayAccess ba) => ba -> Maybe (Context a)
+hashGetContext = from undefined
+  where
+        from :: a -> ba -> Maybe (Context a)
+        from alg bs
+          | B.length bs == (hashInternalContextSize alg) = Just $ Context $ B.allocAndFreeze (B.length bs) $ \(ctx :: Ptr (Context a)) ->
+              B.withByteArray bs $ \ptr -> hashInternalGetContextBE ptr ctx
+          | otherwise                                    = Nothing

Crypto/Hash/Algorithms.hs

@@ -10,6 +10,7 @@
 module Crypto.Hash.Algorithms
     ( HashAlgorithm
     , HashAlgorithmPrefix
+    , HashAlgorithmResumable
     -- * Hash algorithms
     , Blake2s_160(..)
     , Blake2s_224(..)
@@ -55,7 +56,7 @@ module Crypto.Hash.Algorithms
     , Whirlpool(..)
     ) where
 
-import           Crypto.Hash.Types (HashAlgorithm, HashAlgorithmPrefix)
+import           Crypto.Hash.Types (HashAlgorithm, HashAlgorithmPrefix, HashAlgorithmResumable)
 import           Crypto.Hash.Blake2s
 import           Crypto.Hash.Blake2sp
 import           Crypto.Hash.Blake2b

Crypto/Hash/Keccak.hs

@@ -37,6 +37,10 @@ instance HashAlgorithm Keccak_224 where
     hashInternalUpdate        = c_keccak_update
     hashInternalFinalize p    = c_keccak_finalize p 224
 
+instance HashAlgorithmResumable Keccak_224 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | Keccak (256 bits) cryptographic hash algorithm
 data Keccak_256 = Keccak_256
     deriving (Show,Data)
@@ -52,6 +56,10 @@ instance HashAlgorithm Keccak_256 where
     hashInternalUpdate        = c_keccak_update
     hashInternalFinalize p    = c_keccak_finalize p 256
 
+instance HashAlgorithmResumable Keccak_256 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | Keccak (384 bits) cryptographic hash algorithm
 data Keccak_384 = Keccak_384
     deriving (Show,Data)
@@ -67,6 +75,10 @@ instance HashAlgorithm Keccak_384 where
     hashInternalUpdate        = c_keccak_update
     hashInternalFinalize p    = c_keccak_finalize p 384
 
+instance HashAlgorithmResumable Keccak_384 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | Keccak (512 bits) cryptographic hash algorithm
 data Keccak_512 = Keccak_512
     deriving (Show,Data)
@@ -82,6 +94,10 @@ instance HashAlgorithm Keccak_512 where
     hashInternalUpdate        = c_keccak_update
     hashInternalFinalize p    = c_keccak_finalize p 512
 
+instance HashAlgorithmResumable Keccak_512 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 
 foreign import ccall unsafe "cryptonite_keccak_init"
     c_keccak_init :: Ptr (Context a) -> Word32 -> IO ()
@@ -91,3 +107,9 @@ foreign import ccall "cryptonite_keccak_update"
 
 foreign import ccall unsafe "cryptonite_keccak_finalize"
     c_keccak_finalize :: Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
+
+foreign import ccall unsafe "cryptonite_sha3_ctx_to_be"
+    c_sha3_ctx_to_be :: Ptr (Context a) -> Ptr Word8 -> IO ()
+
+foreign import ccall unsafe "cryptonite_sha3_be_to_ctx"
+    c_sha3_be_to_ctx :: Ptr Word8 -> Ptr (Context a) -> IO ()

Crypto/Hash/SHA3.hs

@@ -37,6 +37,10 @@ instance HashAlgorithm SHA3_224 where
     hashInternalUpdate        = c_sha3_update
     hashInternalFinalize p    = c_sha3_finalize p 224
 
+instance HashAlgorithmResumable SHA3_224 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | SHA3 (256 bits) cryptographic hash algorithm
 data SHA3_256 = SHA3_256
     deriving (Show,Data)
@@ -52,6 +56,10 @@ instance HashAlgorithm SHA3_256 where
     hashInternalUpdate        = c_sha3_update
     hashInternalFinalize p    = c_sha3_finalize p 256
 
+instance HashAlgorithmResumable SHA3_256 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | SHA3 (384 bits) cryptographic hash algorithm
 data SHA3_384 = SHA3_384
     deriving (Show,Data)
@@ -67,6 +75,10 @@ instance HashAlgorithm SHA3_384 where
     hashInternalUpdate        = c_sha3_update
     hashInternalFinalize p    = c_sha3_finalize p 384
 
+instance HashAlgorithmResumable SHA3_384 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | SHA3 (512 bits) cryptographic hash algorithm
 data SHA3_512 = SHA3_512
     deriving (Show,Data)
@@ -82,6 +94,10 @@ instance HashAlgorithm SHA3_512 where
     hashInternalUpdate        = c_sha3_update
     hashInternalFinalize p    = c_sha3_finalize p 512
 
+instance HashAlgorithmResumable SHA3_512 where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 
 foreign import ccall unsafe "cryptonite_sha3_init"
     c_sha3_init :: Ptr (Context a) -> Word32 -> IO ()
@@ -91,3 +107,9 @@ foreign import ccall "cryptonite_sha3_update"
 
 foreign import ccall unsafe "cryptonite_sha3_finalize"
     c_sha3_finalize :: Ptr (Context a) -> Word32 -> Ptr (Digest a) -> IO ()
+
+foreign import ccall unsafe "cryptonite_sha3_ctx_to_be"
+    c_sha3_ctx_to_be :: Ptr (Context a) -> Ptr Word8 -> IO ()
+
+foreign import ccall unsafe "cryptonite_sha3_be_to_ctx"
+    c_sha3_be_to_ctx :: Ptr Word8 -> Ptr (Context a) -> IO ()

Crypto/Hash/SHAKE.hs

@@ -62,6 +62,10 @@ instance KnownNat bitlen => HashSHAKE (SHAKE128 bitlen) where
     cshakeInternalFinalize = cshakeFinalizeOutput (Proxy :: Proxy bitlen)
     cshakeOutputLength _ = integralNatVal (Proxy :: Proxy bitlen)
 
+instance KnownNat bitlen => HashAlgorithmResumable (SHAKE128 bitlen) where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 -- | SHAKE256 (256 bits) extendable output function.  Supports an arbitrary
 -- digest size, to be specified as a type parameter of kind 'Nat'.
 --
@@ -86,6 +90,10 @@ instance KnownNat bitlen => HashSHAKE (SHAKE256 bitlen) where
     cshakeInternalFinalize = cshakeFinalizeOutput (Proxy :: Proxy bitlen)
     cshakeOutputLength _ = integralNatVal (Proxy :: Proxy bitlen)
 
+instance KnownNat bitlen => HashAlgorithmResumable (SHAKE256 bitlen) where
+  hashInternalPutContextBE = c_sha3_ctx_to_be
+  hashInternalGetContextBE = c_sha3_be_to_ctx
+
 shakeFinalizeOutput :: KnownNat bitlen
                     => proxy bitlen
                     -> Ptr (Context a)
@@ -129,3 +137,9 @@ foreign import ccall unsafe "cryptonite_sha3_finalize_cshake"
 
 foreign import ccall unsafe "cryptonite_sha3_output"
     c_sha3_output :: Ptr (Context a) -> Ptr (Digest a) -> Word32 -> IO ()
+
+foreign import ccall unsafe "cryptonite_sha3_ctx_to_be"
+    c_sha3_ctx_to_be :: Ptr (Context a) -> Ptr Word8 -> IO ()
+
+foreign import ccall unsafe "cryptonite_sha3_be_to_ctx"
+    c_sha3_be_to_ctx :: Ptr Word8 -> Ptr (Context a) -> IO ()

Crypto/Hash/Types.hs

@@ -15,6 +15,7 @@
 module Crypto.Hash.Types
     ( HashAlgorithm(..)
     , HashAlgorithmPrefix(..)
+    , HashAlgorithmResumable(..)
     , Context(..)
     , Digest(..)
     ) where
@@ -70,6 +71,9 @@ class HashAlgorithm a => HashAlgorithmPrefix a where
                                -> Word32
                                -> Ptr (Digest a)
                                -> IO ()
+class HashAlgorithm a => HashAlgorithmResumable a where
+  hashInternalPutContextBE :: Ptr (Context a) -> Ptr Word8 -> IO ()
+  hashInternalGetContextBE :: Ptr Word8 -> Ptr (Context a) -> IO ()
 
 {-
 hashContextGetAlgorithm :: HashAlgorithm a => Context a -> a

Crypto/Internal/CompatPrim.hs

@@ -23,15 +23,21 @@ module Crypto.Internal.CompatPrim
     , convert4To32
     ) where
 
-import GHC.Prim
 #if !defined(ARCH_IS_LITTLE_ENDIAN) && !defined(ARCH_IS_BIG_ENDIAN)
 import Data.Memory.Endian (getSystemEndianness, Endianness(..))
 #endif
 
+#if __GLASGOW_HASKELL__ >= 902
+import GHC.Prim
+#else
+import GHC.Prim hiding (Word32#)
+type Word32# = Word#
+#endif
+
 -- | Byteswap Word# to or from Big Endian
 --
 -- On a big endian machine, this function is a nop.
-be32Prim :: Word# -> Word#
+be32Prim :: Word32# -> Word32#
 #ifdef ARCH_IS_LITTLE_ENDIAN
 be32Prim = byteswap32Prim
 #elif defined(ARCH_IS_BIG_ENDIAN)
@@ -43,7 +49,7 @@ be32Prim w = if getSystemEndianness == LittleEndian then byteswap32Prim w else w
 -- | Byteswap Word# to or from Little Endian
 --
 -- On a little endian machine, this function is a nop.
-le32Prim :: Word# -> Word#
+le32Prim :: Word32# -> Word32#
 #ifdef ARCH_IS_LITTLE_ENDIAN
 le32Prim w = w
 #elif defined(ARCH_IS_BIG_ENDIAN)
@@ -54,16 +60,11 @@ le32Prim w = if getSystemEndianness == LittleEndian then w else byteswap32Prim w
 
 -- | Simple compatibility for byteswap the lower 32 bits of a Word#
 -- at the primitive level
-byteswap32Prim :: Word# -> Word#
+byteswap32Prim :: Word32# -> Word32#
-#if __GLASGOW_HASKELL__ >= 708
+#if __GLASGOW_HASKELL__ >= 902
-byteswap32Prim w = byteSwap32# w
+byteswap32Prim w = wordToWord32# (byteSwap32# (word32ToWord# w))
 #else
-byteswap32Prim w =
+byteswap32Prim w = byteSwap32# w
-    let !a =       uncheckedShiftL# w 24#
-        !b = and# (uncheckedShiftL# w 8#) 0x00ff0000##
-        !c = and# (uncheckedShiftRL# w 8#) 0x0000ff00##
-        !d = and# (uncheckedShiftRL# w 24#) 0x000000ff##
-     in or# a (or# b (or# c d))
 #endif
 
 -- | Combine 4 word8 [a,b,c,d] to a word32 representing [a,b,c,d]

Crypto/MAC/HMAC.hs

@@ -12,6 +12,7 @@
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 module Crypto.MAC.HMAC
     ( hmac
+    , hmacLazy
     , HMAC(..)
     -- * Incremental
     , Context(..)
@@ -28,6 +29,7 @@ import           Crypto.Internal.ByteArray (ScrubbedBytes, ByteArrayAccess)
 import qualified Crypto.Internal.ByteArray as B
 import           Data.Memory.PtrMethods
 import           Crypto.Internal.Compat
+import qualified Data.ByteString.Lazy as L
 
 -- | Represent an HMAC that is a phantom type with the hash used to produce the mac.
 --
@@ -39,13 +41,20 @@ newtype HMAC a = HMAC { hmacGetDigest :: Digest a }
 instance Eq (HMAC a) where
     (HMAC b1) == (HMAC b2) = B.constEq b1 b2
 
--- | compute a MAC using the supplied hashing function
+-- | Compute a MAC using the supplied hashing function
 hmac :: (ByteArrayAccess key, ByteArrayAccess message, HashAlgorithm a)
      => key     -- ^ Secret key
      -> message -- ^ Message to MAC
      -> HMAC a
 hmac secret msg = finalize $ updates (initialize secret) [msg]
 
+-- | Compute a MAC using the supplied hashing function, for a lazy input
+hmacLazy :: (ByteArrayAccess key, HashAlgorithm a)
+     => key     -- ^ Secret key
+     -> L.ByteString -- ^ Message to MAC
+     -> HMAC a
+hmacLazy secret msg = finalize $ updates (initialize secret) (L.toChunks msg)
+
 -- | Represent an ongoing HMAC state, that can be appended with 'update'
 -- and finalize to an HMAC with 'hmacFinalize'
 data Context hashalg = Context !(Hash.Context hashalg) !(Hash.Context hashalg)

Crypto/Random/Entropy/Unsafe.hs

@@ -25,10 +25,9 @@ replenish :: Int -> [EntropyBackend] -> Ptr Word8 -> IO ()
 replenish _        []       _   = fail "cryptonite: random: cannot get any source of entropy on this system"
 replenish poolSize backends ptr = loop 0 backends ptr poolSize
   where loop :: Int -> [EntropyBackend] -> Ptr Word8 -> Int -> IO ()
-        loop retry [] p n | n == 0     = return ()
+        loop _     _  _ 0 = return ()
-                          | retry == 3 = error "cryptonite: random: cannot fully replenish"
+        loop retry [] p n | retry == 3 = error "cryptonite: random: cannot fully replenish"
                           | otherwise  = loop (retry+1) backends p n
-        loop _     (_:_)  _ 0 = return ()
         loop retry (b:bs) p n = do
             r <- gatherBackend b p n
             loop retry bs (p `plusPtr` r) (n - r)

cbits/aes/x86ni.c

@@ -165,7 +165,7 @@ static __m128i gfmulx(__m128i v)
 TARGET_AESNI
 static __m128i gfmul_generic(__m128i tag, const table_4bit htable)
 {
-	aes_block _t;
+	aes_block _t ALIGNMENT(16);
 	_mm_store_si128((__m128i *) &_t, tag);
 	cryptonite_aes_generic_gf_mul(&_t, htable);
 	tag = _mm_load_si128((__m128i *) &_t);

cbits/argon2/core.c

@@ -83,25 +83,25 @@ static int blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen)
     } while ((void)0, 0)
 
     if (outlen <= BLAKE2B_OUTBYTES) {
-        TRY(blake2b_init(&blake_state, outlen));
+        TRY(_cryptonite_blake2b_init(&blake_state, outlen));
-        TRY(blake2b_update(&blake_state, outlen_bytes, sizeof(outlen_bytes)));
+        TRY(_cryptonite_blake2b_update(&blake_state, outlen_bytes, sizeof(outlen_bytes)));
-        TRY(blake2b_update(&blake_state, in, inlen));
+        TRY(_cryptonite_blake2b_update(&blake_state, in, inlen));
-        TRY(blake2b_final(&blake_state, out, outlen));
+        TRY(_cryptonite_blake2b_final(&blake_state, out, outlen));
     } else {
         uint32_t toproduce;
         uint8_t out_buffer[BLAKE2B_OUTBYTES];
         uint8_t in_buffer[BLAKE2B_OUTBYTES];
-        TRY(blake2b_init(&blake_state, BLAKE2B_OUTBYTES));
+        TRY(_cryptonite_blake2b_init(&blake_state, BLAKE2B_OUTBYTES));
-        TRY(blake2b_update(&blake_state, outlen_bytes, sizeof(outlen_bytes)));
+        TRY(_cryptonite_blake2b_update(&blake_state, outlen_bytes, sizeof(outlen_bytes)));
-        TRY(blake2b_update(&blake_state, in, inlen));
+        TRY(_cryptonite_blake2b_update(&blake_state, in, inlen));
-        TRY(blake2b_final(&blake_state, out_buffer, BLAKE2B_OUTBYTES));
+        TRY(_cryptonite_blake2b_final(&blake_state, out_buffer, BLAKE2B_OUTBYTES));
         memcpy(out, out_buffer, BLAKE2B_OUTBYTES / 2);
         out += BLAKE2B_OUTBYTES / 2;
         toproduce = (uint32_t)outlen - BLAKE2B_OUTBYTES / 2;
 
         while (toproduce > BLAKE2B_OUTBYTES) {
             memcpy(in_buffer, out_buffer, BLAKE2B_OUTBYTES);
-            TRY(blake2b(out_buffer, BLAKE2B_OUTBYTES, in_buffer,
+            TRY(_cryptonite_blake2b(out_buffer, BLAKE2B_OUTBYTES, in_buffer,
                         BLAKE2B_OUTBYTES, NULL, 0));
             memcpy(out, out_buffer, BLAKE2B_OUTBYTES / 2);
             out += BLAKE2B_OUTBYTES / 2;
@@ -109,7 +109,7 @@ static int blake2b_long(void *pout, size_t outlen, const void *in, size_t inlen)
         }
 
         memcpy(in_buffer, out_buffer, BLAKE2B_OUTBYTES);
-        TRY(blake2b(out_buffer, toproduce, in_buffer, BLAKE2B_OUTBYTES, NULL,
+        TRY(_cryptonite_blake2b(out_buffer, toproduce, in_buffer, BLAKE2B_OUTBYTES, NULL,
                     0));
         memcpy(out, out_buffer, toproduce);
     }
@@ -597,31 +597,31 @@ void initial_hash(uint8_t *blockhash, argon2_context *context,
         return;
     }
 
-    blake2b_init(&BlakeHash, ARGON2_PREHASH_DIGEST_LENGTH);
+    _cryptonite_blake2b_init(&BlakeHash, ARGON2_PREHASH_DIGEST_LENGTH);
 
     store32(&value, context->lanes);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     store32(&value, context->outlen);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     store32(&value, context->m_cost);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     store32(&value, context->t_cost);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     store32(&value, context->version);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     store32(&value, (uint32_t)type);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     store32(&value, context->pwdlen);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     if (context->pwd != NULL) {
-        blake2b_update(&BlakeHash, (const uint8_t *)context->pwd,
+        _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)context->pwd,
                        context->pwdlen);
 
         if (context->flags & ARGON2_FLAG_CLEAR_PASSWORD) {
@@ -631,18 +631,18 @@ void initial_hash(uint8_t *blockhash, argon2_context *context,
     }
 
     store32(&value, context->saltlen);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     if (context->salt != NULL) {
-        blake2b_update(&BlakeHash, (const uint8_t *)context->salt,
+        _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)context->salt,
                        context->saltlen);
     }
 
     store32(&value, context->secretlen);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     if (context->secret != NULL) {
-        blake2b_update(&BlakeHash, (const uint8_t *)context->secret,
+        _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)context->secret,
                        context->secretlen);
 
         if (context->flags & ARGON2_FLAG_CLEAR_SECRET) {
@@ -652,14 +652,14 @@ void initial_hash(uint8_t *blockhash, argon2_context *context,
     }
 
     store32(&value, context->adlen);
-    blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
+    _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)&value, sizeof(value));
 
     if (context->ad != NULL) {
-        blake2b_update(&BlakeHash, (const uint8_t *)context->ad,
+        _cryptonite_blake2b_update(&BlakeHash, (const uint8_t *)context->ad,
                        context->adlen);
     }
 
-    blake2b_final(&BlakeHash, blockhash, ARGON2_PREHASH_DIGEST_LENGTH);
+    _cryptonite_blake2b_final(&BlakeHash, blockhash, ARGON2_PREHASH_DIGEST_LENGTH);
 }
 static
 int initialize(argon2_instance_t *instance, argon2_context *context) {

cbits/blake2/ref/blake2.h

@@ -142,51 +142,51 @@ extern "C" {
   };
 
   /* Streaming API */
-  int blake2s_init( blake2s_state *S, size_t outlen );
+  int _cryptonite_blake2s_init( blake2s_state *S, size_t outlen );
-  int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2s_init_param( blake2s_state *S, const blake2s_param *P );
+  int _cryptonite_blake2s_init_param( blake2s_state *S, const blake2s_param *P );
-  int blake2s_update( blake2s_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2s_update( blake2s_state *S, const void *in, size_t inlen );
-  int blake2s_final( blake2s_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2s_final( blake2s_state *S, void *out, size_t outlen );
 
-  int blake2b_init( blake2b_state *S, size_t outlen );
+  int _cryptonite_blake2b_init( blake2b_state *S, size_t outlen );
-  int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2b_init_param( blake2b_state *S, const blake2b_param *P );
+  int _cryptonite_blake2b_init_param( blake2b_state *S, const blake2b_param *P );
-  int blake2b_update( blake2b_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2b_update( blake2b_state *S, const void *in, size_t inlen );
-  int blake2b_final( blake2b_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2b_final( blake2b_state *S, void *out, size_t outlen );
 
-  int blake2sp_init( blake2sp_state *S, size_t outlen );
+  int _cryptonite_blake2sp_init( blake2sp_state *S, size_t outlen );
-  int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2sp_update( blake2sp_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2sp_update( blake2sp_state *S, const void *in, size_t inlen );
-  int blake2sp_final( blake2sp_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2sp_final( blake2sp_state *S, void *out, size_t outlen );
 
-  int blake2bp_init( blake2bp_state *S, size_t outlen );
+  int _cryptonite_blake2bp_init( blake2bp_state *S, size_t outlen );
-  int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2bp_update( blake2bp_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2bp_update( blake2bp_state *S, const void *in, size_t inlen );
-  int blake2bp_final( blake2bp_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2bp_final( blake2bp_state *S, void *out, size_t outlen );
 
   /* Variable output length API */
-  int blake2xs_init( blake2xs_state *S, const size_t outlen );
+  int _cryptonite_blake2xs_init( blake2xs_state *S, const size_t outlen );
-  int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen );
-  int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2xs_update( blake2xs_state *S, const void *in, size_t inlen );
-  int blake2xs_final(blake2xs_state *S, void *out, size_t outlen);
+  int _cryptonite_blake2xs_final(blake2xs_state *S, void *out, size_t outlen);
 
-  int blake2xb_init( blake2xb_state *S, const size_t outlen );
+  int _cryptonite_blake2xb_init( blake2xb_state *S, const size_t outlen );
-  int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen );
-  int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2xb_update( blake2xb_state *S, const void *in, size_t inlen );
-  int blake2xb_final(blake2xb_state *S, void *out, size_t outlen);
+  int _cryptonite_blake2xb_final(blake2xb_state *S, void *out, size_t outlen);
 
   /* Simple API */
-  int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
-  int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
-  int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
-  int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
-  int blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
-  int blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
   /* This is simply an alias for blake2b */
-  int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
 #if defined(__cplusplus)
 }

cbits/blake2/ref/blake2b-ref.c

@@ -78,7 +78,7 @@ static void blake2b_init0( blake2b_state *S )
 }
 
 /* init xors IV with input parameter block */
-int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
+int _cryptonite_blake2b_init_param( blake2b_state *S, const blake2b_param *P )
 {
   const uint8_t *p = ( const uint8_t * )( P );
   size_t i;
@@ -95,7 +95,7 @@ int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
 
 
 
-int blake2b_init( blake2b_state *S, size_t outlen )
+int _cryptonite_blake2b_init( blake2b_state *S, size_t outlen )
 {
   blake2b_param P[1];
 
@@ -113,11 +113,11 @@ int blake2b_init( blake2b_state *S, size_t outlen )
   memset( P->reserved, 0, sizeof( P->reserved ) );
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
-  return blake2b_init_param( S, P );
+  return _cryptonite_blake2b_init_param( S, P );
 }
 
 
-int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
 {
   blake2b_param P[1];
 
@@ -138,13 +138,13 @@ int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t k
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
 
-  if( blake2b_init_param( S, P ) < 0 ) return -1;
+  if( _cryptonite_blake2b_init_param( S, P ) < 0 ) return -1;
 
   {
     uint8_t block[BLAKE2B_BLOCKBYTES];
     memset( block, 0, BLAKE2B_BLOCKBYTES );
     memcpy( block, key, keylen );
-    blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
+    _cryptonite_blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
     secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
   }
   return 0;
@@ -218,7 +218,7 @@ static void blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOC
 #undef G
 #undef ROUND
 
-int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   if( inlen > 0 )
@@ -245,7 +245,7 @@ int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
   return 0;
 }
 
-int blake2b_final( blake2b_state *S, void *out, size_t outlen )
+int _cryptonite_blake2b_final( blake2b_state *S, void *out, size_t outlen )
 {
   uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
   size_t i;
@@ -270,7 +270,7 @@ int blake2b_final( blake2b_state *S, void *out, size_t outlen )
 }
 
 /* inlen, at least, should be uint64_t. Others can be size_t. */
-int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   blake2b_state S[1];
 
@@ -287,26 +287,26 @@ int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void
 
   if( keylen > 0 )
   {
-    if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
+    if( _cryptonite_blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
   }
   else
   {
-    if( blake2b_init( S, outlen ) < 0 ) return -1;
+    if( _cryptonite_blake2b_init( S, outlen ) < 0 ) return -1;
   }
 
-  blake2b_update( S, ( const uint8_t * )in, inlen );
+  _cryptonite_blake2b_update( S, ( const uint8_t * )in, inlen );
-  blake2b_final( S, out, outlen );
+  _cryptonite_blake2b_final( S, out, outlen );
   return 0;
 }
 
-int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
+int _cryptonite_blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
-  return blake2b(out, outlen, in, inlen, key, keylen);
+  return _cryptonite_blake2b(out, outlen, in, inlen, key, keylen);
 }
 
 #if defined(SUPERCOP)
 int crypto_hash( unsigned char *out, unsigned char *in, unsigned long long inlen )
 {
-  return blake2b( out, BLAKE2B_OUTBYTES, in, inlen, NULL, 0 );
+  return _cryptonite_blake2b( out, BLAKE2B_OUTBYTES, in, inlen, NULL, 0 );
 }
 #endif
 
@@ -329,9 +329,9 @@ int main( void )
   for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
   {
     uint8_t hash[BLAKE2B_OUTBYTES];
-    blake2b( hash, BLAKE2B_OUTBYTES, buf, i, key, BLAKE2B_KEYBYTES );
+    _cryptonite_blake2b( hash, BLAKE2B_OUTBYTES, buf, i, key, BLAKE2B_KEYBYTES );
 
-    if( 0 != memcmp( hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES ) )
+    if( 0 != memcmp( hash, _cryptonite_blake2b_keyed_kat[i], BLAKE2B_OUTBYTES ) )
     {
       goto fail;
     }
@@ -346,25 +346,25 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2b_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2b_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2b_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2b_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2b_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2b_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2b_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2b_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
         goto fail;
       }
 
-      if (0 != memcmp(hash, blake2b_keyed_kat[i], BLAKE2B_OUTBYTES)) {
+      if (0 != memcmp(hash, _cryptonite_blake2b_keyed_kat[i], BLAKE2B_OUTBYTES)) {
         goto fail;
       }
     }

cbits/blake2/ref/blake2bp-ref.c

@@ -36,7 +36,7 @@
 */
 static int blake2bp_init_leaf_param( blake2b_state *S, const blake2b_param *P )
 {
-  int err = blake2b_init_param(S, P);
+  int err = _cryptonite_blake2b_init_param(S, P);
   S->outlen = P->inner_length;
   return err;
 }
@@ -74,11 +74,11 @@ static int blake2bp_init_root( blake2b_state *S, size_t outlen, size_t keylen )
   memset( P->reserved, 0, sizeof( P->reserved ) );
   memset( P->salt, 0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
-  return blake2b_init_param( S, P );
+  return _cryptonite_blake2b_init_param( S, P );
 }
 
 
-int blake2bp_init( blake2bp_state *S, size_t outlen )
+int _cryptonite_blake2bp_init( blake2bp_state *S, size_t outlen )
 {
   size_t i;
 
@@ -99,7 +99,7 @@ int blake2bp_init( blake2bp_state *S, size_t outlen )
   return 0;
 }
 
-int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen )
 {
   size_t i;
 
@@ -125,7 +125,7 @@ int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2b_update( S->S[i], block, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S->S[i], block, BLAKE2B_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -133,7 +133,7 @@ int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t
 }
 
 
-int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   size_t left = S->buflen;
@@ -145,7 +145,7 @@ int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
     memcpy( S->buf + left, in, fill );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES );
 
     in += fill;
     inlen -= fill;
@@ -168,7 +168,7 @@ int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES )
     {
-      blake2b_update( S->S[i], in__, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S->S[i], in__, BLAKE2B_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
     }
@@ -184,7 +184,7 @@ int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
   return 0;
 }
 
-int blake2bp_final( blake2bp_state *S, void *out, size_t outlen )
+int _cryptonite_blake2bp_final( blake2bp_state *S, void *out, size_t outlen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2B_OUTBYTES];
   size_t i;
@@ -201,19 +201,19 @@ int blake2bp_final( blake2bp_state *S, void *out, size_t outlen )
 
       if( left > BLAKE2B_BLOCKBYTES ) left = BLAKE2B_BLOCKBYTES;
 
-      blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, left );
+      _cryptonite_blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, left );
     }
 
-    blake2b_final( S->S[i], hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_final( S->S[i], hash[i], BLAKE2B_OUTBYTES );
   }
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2b_update( S->R, hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_update( S->R, hash[i], BLAKE2B_OUTBYTES );
 
-  return blake2b_final( S->R, out, S->outlen );
+  return _cryptonite_blake2b_final( S->R, out, S->outlen );
 }
 
-int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2B_OUTBYTES];
   blake2b_state S[PARALLELISM_DEGREE][1];
@@ -243,7 +243,7 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2b_update( S[i], block, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S[i], block, BLAKE2B_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -264,7 +264,7 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES )
     {
-      blake2b_update( S[i], in__, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S[i], in__, BLAKE2B_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
     }
@@ -273,10 +273,10 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
     {
       const size_t left = inlen__ - i * BLAKE2B_BLOCKBYTES;
       const size_t len = left <= BLAKE2B_BLOCKBYTES ? left : BLAKE2B_BLOCKBYTES;
-      blake2b_update( S[i], in__, len );
+      _cryptonite_blake2b_update( S[i], in__, len );
     }
 
-    blake2b_final( S[i], hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_final( S[i], hash[i], BLAKE2B_OUTBYTES );
   }
 
   if( blake2bp_init_root( FS, outlen, keylen ) < 0 )
@@ -285,9 +285,9 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
   FS->last_node = 1; /* Mark as last node */
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2b_update( FS, hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_update( FS, hash[i], BLAKE2B_OUTBYTES );
 
-  return blake2b_final( FS, out, outlen );;
+  return _cryptonite_blake2b_final( FS, out, outlen );;
 }
 
 #if defined(BLAKE2BP_SELFTEST)
@@ -326,21 +326,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2bp_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2bp_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2bp_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2bp_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2bp_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2bp_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2bp_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2bp_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/ref/blake2s-ref.c

@@ -73,7 +73,7 @@ static void blake2s_init0( blake2s_state *S )
 }
 
 /* init2 xors IV with input parameter block */
-int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
+int _cryptonite_blake2s_init_param( blake2s_state *S, const blake2s_param *P )
 {
   const unsigned char *p = ( const unsigned char * )( P );
   size_t i;
@@ -90,7 +90,7 @@ int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
 
 
 /* Sequential blake2s initialization */
-int blake2s_init( blake2s_state *S, size_t outlen )
+int _cryptonite_blake2s_init( blake2s_state *S, size_t outlen )
 {
   blake2s_param P[1];
 
@@ -109,10 +109,10 @@ int blake2s_init( blake2s_state *S, size_t outlen )
   /* memset(P->reserved, 0, sizeof(P->reserved) ); */
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
-  return blake2s_init_param( S, P );
+  return _cryptonite_blake2s_init_param( S, P );
 }
 
-int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen )
 {
   blake2s_param P[1];
 
@@ -133,13 +133,13 @@ int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t k
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
 
-  if( blake2s_init_param( S, P ) < 0 ) return -1;
+  if( _cryptonite_blake2s_init_param( S, P ) < 0 ) return -1;
 
   {
     uint8_t block[BLAKE2S_BLOCKBYTES];
     memset( block, 0, BLAKE2S_BLOCKBYTES );
     memcpy( block, key, keylen );
-    blake2s_update( S, block, BLAKE2S_BLOCKBYTES );
+    _cryptonite_blake2s_update( S, block, BLAKE2S_BLOCKBYTES );
     secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
   }
   return 0;
@@ -211,7 +211,7 @@ static void blake2s_compress( blake2s_state *S, const uint8_t in[BLAKE2S_BLOCKBY
 #undef G
 #undef ROUND
 
-int blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   if( inlen > 0 )
@@ -238,7 +238,7 @@ int blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
   return 0;
 }
 
-int blake2s_final( blake2s_state *S, void *out, size_t outlen )
+int _cryptonite_blake2s_final( blake2s_state *S, void *out, size_t outlen )
 {
   uint8_t buffer[BLAKE2S_OUTBYTES] = {0};
   size_t i;
@@ -262,7 +262,7 @@ int blake2s_final( blake2s_state *S, void *out, size_t outlen )
   return 0;
 }
 
-int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   blake2s_state S[1];
 
@@ -279,22 +279,22 @@ int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void
 
   if( keylen > 0 )
   {
-    if( blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1;
+    if( _cryptonite_blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1;
   }
   else
   {
-    if( blake2s_init( S, outlen ) < 0 ) return -1;
+    if( _cryptonite_blake2s_init( S, outlen ) < 0 ) return -1;
   }
 
-  blake2s_update( S, ( const uint8_t * )in, inlen );
+  _cryptonite_blake2s_update( S, ( const uint8_t * )in, inlen );
-  blake2s_final( S, out, outlen );
+  _cryptonite_blake2s_final( S, out, outlen );
   return 0;
 }
 
 #if defined(SUPERCOP)
 int crypto_hash( unsigned char *out, unsigned char *in, unsigned long long inlen )
 {
-  return blake2s( out, BLAKE2S_OUTBYTES, in, inlen, NULL, 0 );
+  return _cryptonite_blake2s( out, BLAKE2S_OUTBYTES, in, inlen, NULL, 0 );
 }
 #endif
 
@@ -317,7 +317,7 @@ int main( void )
   for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
   {
     uint8_t hash[BLAKE2S_OUTBYTES];
-    blake2s( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
+    _cryptonite_blake2s( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
 
     if( 0 != memcmp( hash, blake2s_keyed_kat[i], BLAKE2S_OUTBYTES ) )
     {
@@ -334,21 +334,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2s_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2s_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2s_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2s_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2s_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2s_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2s_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2s_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/ref/blake2sp-ref.c

@@ -35,7 +35,7 @@
 */
 static int blake2sp_init_leaf_param( blake2s_state *S, const blake2s_param *P )
 {
-  int err = blake2s_init_param(S, P);
+  int err = _cryptonite_blake2s_init_param(S, P);
   S->outlen = P->inner_length;
   return err;
 }
@@ -71,11 +71,11 @@ static int blake2sp_init_root( blake2s_state *S, size_t outlen, size_t keylen )
   P->inner_length = BLAKE2S_OUTBYTES;
   memset( P->salt, 0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
-  return blake2s_init_param( S, P );
+  return _cryptonite_blake2s_init_param( S, P );
 }
 
 
-int blake2sp_init( blake2sp_state *S, size_t outlen )
+int _cryptonite_blake2sp_init( blake2sp_state *S, size_t outlen )
 {
   size_t i;
 
@@ -96,7 +96,7 @@ int blake2sp_init( blake2sp_state *S, size_t outlen )
   return 0;
 }
 
-int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen )
 {
   size_t i;
 
@@ -122,7 +122,7 @@ int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2s_update( S->S[i], block, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S->S[i], block, BLAKE2S_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -130,7 +130,7 @@ int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t
 }
 
 
-int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   size_t left = S->buflen;
@@ -142,7 +142,7 @@ int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
     memcpy( S->buf + left, in, fill );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES );
 
     in += fill;
     inlen -= fill;
@@ -164,7 +164,7 @@ int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES )
     {
-      blake2s_update( S->S[i], in__, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S->S[i], in__, BLAKE2S_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
     }
@@ -181,7 +181,7 @@ int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
 }
 
 
-int blake2sp_final( blake2sp_state *S, void *out, size_t outlen )
+int _cryptonite_blake2sp_final( blake2sp_state *S, void *out, size_t outlen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2S_OUTBYTES];
   size_t i;
@@ -198,20 +198,20 @@ int blake2sp_final( blake2sp_state *S, void *out, size_t outlen )
 
       if( left > BLAKE2S_BLOCKBYTES ) left = BLAKE2S_BLOCKBYTES;
 
-      blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, left );
+      _cryptonite_blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, left );
     }
 
-    blake2s_final( S->S[i], hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_final( S->S[i], hash[i], BLAKE2S_OUTBYTES );
   }
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2s_update( S->R, hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_update( S->R, hash[i], BLAKE2S_OUTBYTES );
 
-  return blake2s_final( S->R, out, S->outlen );
+  return _cryptonite_blake2s_final( S->R, out, S->outlen );
 }
 
 
-int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2S_OUTBYTES];
   blake2s_state S[PARALLELISM_DEGREE][1];
@@ -241,7 +241,7 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2s_update( S[i], block, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S[i], block, BLAKE2S_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -262,7 +262,7 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES )
     {
-      blake2s_update( S[i], in__, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S[i], in__, BLAKE2S_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
     }
@@ -271,10 +271,10 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
     {
       const size_t left = inlen__ - i * BLAKE2S_BLOCKBYTES;
       const size_t len = left <= BLAKE2S_BLOCKBYTES ? left : BLAKE2S_BLOCKBYTES;
-      blake2s_update( S[i], in__, len );
+      _cryptonite_blake2s_update( S[i], in__, len );
     }
 
-    blake2s_final( S[i], hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_final( S[i], hash[i], BLAKE2S_OUTBYTES );
   }
 
   if( blake2sp_init_root( FS, outlen, keylen ) < 0 )
@@ -283,9 +283,9 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
   FS->last_node = 1;
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2s_update( FS, hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_update( FS, hash[i], BLAKE2S_OUTBYTES );
 
-  return blake2s_final( FS, out, outlen );
+  return _cryptonite_blake2s_final( FS, out, outlen );
 }
 
 
@@ -309,7 +309,7 @@ int main( void )
   for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
   {
     uint8_t hash[BLAKE2S_OUTBYTES];
-    blake2sp( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
+    _cryptonite_blake2sp( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
 
     if( 0 != memcmp( hash, blake2sp_keyed_kat[i], BLAKE2S_OUTBYTES ) )
     {
@@ -326,21 +326,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2sp_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2sp_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2sp_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2sp_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2sp_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2sp_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2sp_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2sp_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/ref/blake2xb-ref.c

@@ -23,11 +23,11 @@
 #include "blake2.h"
 #include "blake2-impl.h"
 
-int blake2xb_init( blake2xb_state *S, const size_t outlen ) {
+int _cryptonite_blake2xb_init( blake2xb_state *S, const size_t outlen ) {
-  return blake2xb_init_key(S, outlen, NULL, 0);
+  return _cryptonite_blake2xb_init_key(S, outlen, NULL, 0);
 }
 
-int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen)
+int _cryptonite_blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen)
 {
   if ( outlen == 0 || outlen > 0xFFFFFFFFUL ) {
     return -1;
@@ -55,7 +55,7 @@ int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key,
   memset( S->P->salt,     0, sizeof( S->P->salt ) );
   memset( S->P->personal, 0, sizeof( S->P->personal ) );
 
-  if( blake2b_init_param( S->S, S->P ) < 0 ) {
+  if( _cryptonite_blake2b_init_param( S->S, S->P ) < 0 ) {
     return -1;
   }
 
@@ -63,17 +63,17 @@ int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key,
     uint8_t block[BLAKE2B_BLOCKBYTES];
     memset(block, 0, BLAKE2B_BLOCKBYTES);
     memcpy(block, key, keylen);
-    blake2b_update(S->S, block, BLAKE2B_BLOCKBYTES);
+    _cryptonite_blake2b_update(S->S, block, BLAKE2B_BLOCKBYTES);
     secure_zero_memory(block, BLAKE2B_BLOCKBYTES);
   }
   return 0;
 }
 
-int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen ) {
+int _cryptonite_blake2xb_update( blake2xb_state *S, const void *in, size_t inlen ) {
-    return blake2b_update( S->S, in, inlen );
+    return _cryptonite_blake2b_update( S->S, in, inlen );
 }
 
-int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
+int _cryptonite_blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
 
   blake2b_state C[1];
   blake2b_param P[1];
@@ -98,7 +98,7 @@ int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
   }
 
   /* Finalize the root hash */
-  if (blake2b_final(S->S, root, BLAKE2B_OUTBYTES) < 0) {
+  if (_cryptonite_blake2b_final(S->S, root, BLAKE2B_OUTBYTES) < 0) {
     return -1;
   }
 
@@ -117,10 +117,10 @@ int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
     /* Initialize state */
     P->digest_length = block_size;
     store32(&P->node_offset, i);
-    blake2b_init_param(C, P);
+    _cryptonite_blake2b_init_param(C, P);
     /* Process key if needed */
-    blake2b_update(C, root, BLAKE2B_OUTBYTES);
+    _cryptonite_blake2b_update(C, root, BLAKE2B_OUTBYTES);
-    if (blake2b_final(C, (uint8_t *)out + i * BLAKE2B_OUTBYTES, block_size) < 0 ) {
+    if (_cryptonite_blake2b_final(C, (uint8_t *)out + i * BLAKE2B_OUTBYTES, block_size) < 0 ) {
         return -1;
     }
     outlen -= block_size;
@@ -133,7 +133,7 @@ int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
 
 }
 
-int blake2xb(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
+int _cryptonite_blake2xb(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
 {
   blake2xb_state S[1];
 
@@ -154,15 +154,15 @@ int blake2xb(void *out, size_t outlen, const void *in, size_t inlen, const void
     return -1;
 
   /* Initialize the root block structure */
-  if (blake2xb_init_key(S, outlen, key, keylen) < 0) {
+  if (_cryptonite_blake2xb_init_key(S, outlen, key, keylen) < 0) {
     return -1;
   }
 
   /* Absorb the input message */
-  blake2xb_update(S, in, inlen);
+  _cryptonite_blake2xb_update(S, in, inlen);
 
   /* Compute the root node of the tree and the final hash using the counter construction */
-  return blake2xb_final(S, out, outlen);
+  return _cryptonite_blake2xb_final(S, out, outlen);
 }
 
 #if defined(BLAKE2XB_SELFTEST)
@@ -189,7 +189,7 @@ int main( void )
   for( outlen = 1; outlen <= BLAKE2_KAT_LENGTH; ++outlen )
   {
       uint8_t hash[BLAKE2_KAT_LENGTH] = {0};
-      if( blake2xb( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2B_KEYBYTES ) < 0 ) {
+      if( _cryptonite_blake2xb( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2B_KEYBYTES ) < 0 ) {
         goto fail;
       }
 
@@ -208,21 +208,21 @@ int main( void )
       size_t mlen = BLAKE2_KAT_LENGTH;
       int err = 0;
 
-      if( (err = blake2xb_init_key(&S, outlen, key, BLAKE2B_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2xb_init_key(&S, outlen, key, BLAKE2B_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2xb_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2xb_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2xb_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2xb_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2xb_final(&S, hash, outlen)) < 0) {
+      if ( (err = _cryptonite_blake2xb_final(&S, hash, outlen)) < 0) {
         goto fail;
       }
 

cbits/blake2/ref/blake2xs-ref.c

@@ -23,11 +23,11 @@
 #include "blake2.h"
 #include "blake2-impl.h"
 
-int blake2xs_init( blake2xs_state *S, const size_t outlen ) {
+int _cryptonite_blake2xs_init( blake2xs_state *S, const size_t outlen ) {
-  return blake2xs_init_key(S, outlen, NULL, 0);
+  return _cryptonite_blake2xs_init_key(S, outlen, NULL, 0);
 }
 
-int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen )
 {
   if ( outlen == 0 || outlen > 0xFFFFUL ) {
     return -1;
@@ -54,7 +54,7 @@ int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key,
   memset( S->P->salt,     0, sizeof( S->P->salt ) );
   memset( S->P->personal, 0, sizeof( S->P->personal ) );
 
-  if( blake2s_init_param( S->S, S->P ) < 0 ) {
+  if( _cryptonite_blake2s_init_param( S->S, S->P ) < 0 ) {
     return -1;
   }
 
@@ -62,17 +62,17 @@ int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key,
     uint8_t block[BLAKE2S_BLOCKBYTES];
     memset(block, 0, BLAKE2S_BLOCKBYTES);
     memcpy(block, key, keylen);
-    blake2s_update(S->S, block, BLAKE2S_BLOCKBYTES);
+    _cryptonite_blake2s_update(S->S, block, BLAKE2S_BLOCKBYTES);
     secure_zero_memory(block, BLAKE2S_BLOCKBYTES);
   }
   return 0;
 }
 
-int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen ) {
+int _cryptonite_blake2xs_update( blake2xs_state *S, const void *in, size_t inlen ) {
-  return blake2s_update( S->S, in, inlen );
+  return _cryptonite_blake2s_update( S->S, in, inlen );
 }
 
-int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
+int _cryptonite_blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
 
   blake2s_state C[1];
   blake2s_param P[1];
@@ -97,7 +97,7 @@ int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
   }
 
   /* Finalize the root hash */
-  if (blake2s_final(S->S, root, BLAKE2S_OUTBYTES) < 0) {
+  if (_cryptonite_blake2s_final(S->S, root, BLAKE2S_OUTBYTES) < 0) {
     return -1;
   }
 
@@ -116,10 +116,10 @@ int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
     /* Initialize state */
     P->digest_length = block_size;
     store32(&P->node_offset, i);
-    blake2s_init_param(C, P);
+    _cryptonite_blake2s_init_param(C, P);
     /* Process key if needed */
-    blake2s_update(C, root, BLAKE2S_OUTBYTES);
+    _cryptonite_blake2s_update(C, root, BLAKE2S_OUTBYTES);
-    if (blake2s_final(C, (uint8_t *)out + i * BLAKE2S_OUTBYTES, block_size) < 0) {
+    if (_cryptonite_blake2s_final(C, (uint8_t *)out + i * BLAKE2S_OUTBYTES, block_size) < 0) {
         return -1;
     }
     outlen -= block_size;
@@ -131,7 +131,7 @@ int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
   return 0;
 }
 
-int blake2xs(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
+int _cryptonite_blake2xs(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
 {
   blake2xs_state S[1];
 
@@ -152,15 +152,15 @@ int blake2xs(void *out, size_t outlen, const void *in, size_t inlen, const void
     return -1;
 
   /* Initialize the root block structure */
-  if (blake2xs_init_key(S, outlen, key, keylen) < 0) {
+  if (_cryptonite_blake2xs_init_key(S, outlen, key, keylen) < 0) {
     return -1;
   }
 
   /* Absorb the input message */
-  blake2xs_update(S, in, inlen);
+  _cryptonite_blake2xs_update(S, in, inlen);
 
   /* Compute the root node of the tree and the final hash using the counter construction */
-  return blake2xs_final(S, out, outlen);
+  return _cryptonite_blake2xs_final(S, out, outlen);
 }
 
 #if defined(BLAKE2XS_SELFTEST)
@@ -187,7 +187,7 @@ int main( void )
   for( outlen = 1; outlen <= BLAKE2_KAT_LENGTH; ++outlen )
   {
       uint8_t hash[BLAKE2_KAT_LENGTH] = {0};
-      if( blake2xs( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2S_KEYBYTES ) < 0 ) {
+      if( _cryptonite_blake2xs( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2S_KEYBYTES ) < 0 ) {
         goto fail;
       }
 
@@ -206,21 +206,21 @@ int main( void )
       size_t mlen = BLAKE2_KAT_LENGTH;
       int err = 0;
 
-      if( (err = blake2xs_init_key(&S, outlen, key, BLAKE2S_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2xs_init_key(&S, outlen, key, BLAKE2S_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2xs_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2xs_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2xs_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2xs_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2xs_final(&S, hash, outlen)) < 0) {
+      if ( (err = _cryptonite_blake2xs_final(&S, hash, outlen)) < 0) {
         goto fail;
       }
 

cbits/blake2/sse/blake2.h

@@ -142,51 +142,51 @@ extern "C" {
   };
 
   /* Streaming API */
-  int blake2s_init( blake2s_state *S, size_t outlen );
+  int _cryptonite_blake2s_init( blake2s_state *S, size_t outlen );
-  int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2s_init_param( blake2s_state *S, const blake2s_param *P );
+  int _cryptonite_blake2s_init_param( blake2s_state *S, const blake2s_param *P );
-  int blake2s_update( blake2s_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2s_update( blake2s_state *S, const void *in, size_t inlen );
-  int blake2s_final( blake2s_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2s_final( blake2s_state *S, void *out, size_t outlen );
 
-  int blake2b_init( blake2b_state *S, size_t outlen );
+  int _cryptonite_blake2b_init( blake2b_state *S, size_t outlen );
-  int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2b_init_param( blake2b_state *S, const blake2b_param *P );
+  int _cryptonite_blake2b_init_param( blake2b_state *S, const blake2b_param *P );
-  int blake2b_update( blake2b_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2b_update( blake2b_state *S, const void *in, size_t inlen );
-  int blake2b_final( blake2b_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2b_final( blake2b_state *S, void *out, size_t outlen );
 
-  int blake2sp_init( blake2sp_state *S, size_t outlen );
+  int _cryptonite_blake2sp_init( blake2sp_state *S, size_t outlen );
-  int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2sp_update( blake2sp_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2sp_update( blake2sp_state *S, const void *in, size_t inlen );
-  int blake2sp_final( blake2sp_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2sp_final( blake2sp_state *S, void *out, size_t outlen );
 
-  int blake2bp_init( blake2bp_state *S, size_t outlen );
+  int _cryptonite_blake2bp_init( blake2bp_state *S, size_t outlen );
-  int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen );
-  int blake2bp_update( blake2bp_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2bp_update( blake2bp_state *S, const void *in, size_t inlen );
-  int blake2bp_final( blake2bp_state *S, void *out, size_t outlen );
+  int _cryptonite_blake2bp_final( blake2bp_state *S, void *out, size_t outlen );
 
   /* Variable output length API */
-  int blake2xs_init( blake2xs_state *S, const size_t outlen );
+  int _cryptonite_blake2xs_init( blake2xs_state *S, const size_t outlen );
-  int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen );
-  int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2xs_update( blake2xs_state *S, const void *in, size_t inlen );
-  int blake2xs_final(blake2xs_state *S, void *out, size_t outlen);
+  int _cryptonite_blake2xs_final(blake2xs_state *S, void *out, size_t outlen);
 
-  int blake2xb_init( blake2xb_state *S, const size_t outlen );
+  int _cryptonite_blake2xb_init( blake2xb_state *S, const size_t outlen );
-  int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen );
-  int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen );
+  int _cryptonite_blake2xb_update( blake2xb_state *S, const void *in, size_t inlen );
-  int blake2xb_final(blake2xb_state *S, void *out, size_t outlen);
+  int _cryptonite_blake2xb_final(blake2xb_state *S, void *out, size_t outlen);
 
   /* Simple API */
-  int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
-  int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
-  int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
-  int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
-  int blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xs( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
-  int blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2xb( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
   /* This is simply an alias for blake2b */
-  int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
+  int _cryptonite_blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
 
 #if defined(__cplusplus)
 }

cbits/blake2/sse/blake2b.c

@@ -74,7 +74,7 @@ static void blake2b_increment_counter( blake2b_state *S, const uint64_t inc )
 }
 
 /* init xors IV with input parameter block */
-int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
+int _cryptonite_blake2b_init_param( blake2b_state *S, const blake2b_param *P )
 {
   size_t i;
   /*blake2b_init0( S ); */
@@ -92,7 +92,7 @@ int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
 
 
 /* Some sort of default parameter block initialization, for sequential blake2b */
-int blake2b_init( blake2b_state *S, size_t outlen )
+int _cryptonite_blake2b_init( blake2b_state *S, size_t outlen )
 {
   blake2b_param P[1];
 
@@ -111,10 +111,10 @@ int blake2b_init( blake2b_state *S, size_t outlen )
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
 
-  return blake2b_init_param( S, P );
+  return _cryptonite_blake2b_init_param( S, P );
 }
 
-int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
 {
   blake2b_param P[1];
 
@@ -135,14 +135,14 @@ int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t k
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
 
-  if( blake2b_init_param( S, P ) < 0 )
+  if( _cryptonite_blake2b_init_param( S, P ) < 0 )
     return 0;
 
   {
     uint8_t block[BLAKE2B_BLOCKBYTES];
     memset( block, 0, BLAKE2B_BLOCKBYTES );
     memcpy( block, key, keylen );
-    blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
+    _cryptonite_blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
     secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
   }
   return 0;
@@ -218,7 +218,7 @@ static void blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOC
 }
 
 
-int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   if( inlen > 0 )
@@ -246,7 +246,7 @@ int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
 }
 
 
-int blake2b_final( blake2b_state *S, void *out, size_t outlen )
+int _cryptonite_blake2b_final( blake2b_state *S, void *out, size_t outlen )
 {
   if( out == NULL || outlen < S->outlen )
     return -1;
@@ -264,7 +264,7 @@ int blake2b_final( blake2b_state *S, void *out, size_t outlen )
 }
 
 
-int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   blake2b_state S[1];
 
@@ -281,26 +281,26 @@ int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void
 
   if( keylen )
   {
-    if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
+    if( _cryptonite_blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
   }
   else
   {
-    if( blake2b_init( S, outlen ) < 0 ) return -1;
+    if( _cryptonite_blake2b_init( S, outlen ) < 0 ) return -1;
   }
 
-  blake2b_update( S, ( const uint8_t * )in, inlen );
+  _cryptonite_blake2b_update( S, ( const uint8_t * )in, inlen );
-  blake2b_final( S, out, outlen );
+  _cryptonite_blake2b_final( S, out, outlen );
   return 0;
 }
 
-int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
+int _cryptonite_blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
-  return blake2b(out, outlen, in, inlen, key, keylen);
+  return _cryptonite_blake2b(out, outlen, in, inlen, key, keylen);
 }
 
 #if defined(SUPERCOP)
 int crypto_hash( unsigned char *out, unsigned char *in, unsigned long long inlen )
 {
-  return blake2b( out, BLAKE2B_OUTBYTES, in, inlen, NULL, 0 );
+  return _cryptonite_blake2b( out, BLAKE2B_OUTBYTES, in, inlen, NULL, 0 );
 }
 #endif
 
@@ -340,21 +340,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2b_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2b_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2b_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2b_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2b_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2b_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2b_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2b_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/sse/blake2bp.c

@@ -36,7 +36,7 @@
 */
 static int blake2bp_init_leaf_param( blake2b_state *S, const blake2b_param *P )
 {
-  int err = blake2b_init_param(S, P);
+  int err = _cryptonite_blake2b_init_param(S, P);
   S->outlen = P->inner_length;
   return err;
 }
@@ -74,11 +74,11 @@ static int blake2bp_init_root( blake2b_state *S, size_t outlen, size_t keylen )
   memset( P->reserved, 0, sizeof( P->reserved ) );
   memset( P->salt, 0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
-  return blake2b_init_param( S, P );
+  return _cryptonite_blake2b_init_param( S, P );
 }
 
 
-int blake2bp_init( blake2bp_state *S, size_t outlen )
+int _cryptonite_blake2bp_init( blake2bp_state *S, size_t outlen )
 {
   size_t i;
   if( !outlen || outlen > BLAKE2B_OUTBYTES ) return -1;
@@ -98,7 +98,7 @@ int blake2bp_init( blake2bp_state *S, size_t outlen )
   return 0;
 }
 
-int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t keylen )
 {
   size_t i;
 
@@ -124,7 +124,7 @@ int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2b_update( S->S[i], block, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S->S[i], block, BLAKE2B_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -132,7 +132,7 @@ int blake2bp_init_key( blake2bp_state *S, size_t outlen, const void *key, size_t
 }
 
 
-int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   size_t left = S->buflen;
@@ -144,7 +144,7 @@ int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
     memcpy( S->buf + left, in, fill );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES );
 
     in += fill;
     inlen -= fill;
@@ -167,7 +167,7 @@ int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES )
     {
-      blake2b_update( S->S[i], in__, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S->S[i], in__, BLAKE2B_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
     }
@@ -185,7 +185,7 @@ int blake2bp_update( blake2bp_state *S, const void *pin, size_t inlen )
 
 
 
-int blake2bp_final( blake2bp_state *S, void *out, size_t outlen )
+int _cryptonite_blake2bp_final( blake2bp_state *S, void *out, size_t outlen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2B_OUTBYTES];
   size_t i;
@@ -202,19 +202,19 @@ int blake2bp_final( blake2bp_state *S, void *out, size_t outlen )
 
       if( left > BLAKE2B_BLOCKBYTES ) left = BLAKE2B_BLOCKBYTES;
 
-      blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, left );
+      _cryptonite_blake2b_update( S->S[i], S->buf + i * BLAKE2B_BLOCKBYTES, left );
     }
 
-    blake2b_final( S->S[i], hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_final( S->S[i], hash[i], BLAKE2B_OUTBYTES );
   }
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2b_update( S->R, hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_update( S->R, hash[i], BLAKE2B_OUTBYTES );
 
-  return blake2b_final( S->R, out, S->outlen );
+  return _cryptonite_blake2b_final( S->R, out, S->outlen );
 }
 
-int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2B_OUTBYTES];
   blake2b_state S[PARALLELISM_DEGREE][1];
@@ -244,7 +244,7 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2b_update( S[i], block, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S[i], block, BLAKE2B_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -265,7 +265,7 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES )
     {
-      blake2b_update( S[i], in__, BLAKE2B_BLOCKBYTES );
+      _cryptonite_blake2b_update( S[i], in__, BLAKE2B_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2B_BLOCKBYTES;
     }
@@ -274,10 +274,10 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
     {
       const size_t left = inlen__ - i * BLAKE2B_BLOCKBYTES;
       const size_t len = left <= BLAKE2B_BLOCKBYTES ? left : BLAKE2B_BLOCKBYTES;
-      blake2b_update( S[i], in__, len );
+      _cryptonite_blake2b_update( S[i], in__, len );
     }
 
-    blake2b_final( S[i], hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_final( S[i], hash[i], BLAKE2B_OUTBYTES );
   }
 
   if( blake2bp_init_root( FS, outlen, keylen ) < 0 )
@@ -286,9 +286,9 @@ int blake2bp( void *out, size_t outlen, const void *in, size_t inlen, const void
   FS->last_node = 1; /* Mark as last node */
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2b_update( FS, hash[i], BLAKE2B_OUTBYTES );
+    _cryptonite_blake2b_update( FS, hash[i], BLAKE2B_OUTBYTES );
 
-  return blake2b_final( FS, out, outlen );
+  return _cryptonite_blake2b_final( FS, out, outlen );
 }
 
 
@@ -311,7 +311,7 @@ int main( void )
   for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
   {
     uint8_t hash[BLAKE2B_OUTBYTES];
-    blake2bp( hash, BLAKE2B_OUTBYTES, buf, i, key, BLAKE2B_KEYBYTES );
+    _cryptonite_blake2bp( hash, BLAKE2B_OUTBYTES, buf, i, key, BLAKE2B_KEYBYTES );
 
     if( 0 != memcmp( hash, blake2bp_keyed_kat[i], BLAKE2B_OUTBYTES ) )
     {
@@ -328,21 +328,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2bp_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2bp_init_key(&S, BLAKE2B_OUTBYTES, key, BLAKE2B_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2bp_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2bp_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2bp_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2bp_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2bp_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2bp_final(&S, hash, BLAKE2B_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/sse/blake2s.c

@@ -72,7 +72,7 @@ static void blake2s_increment_counter( blake2s_state *S, const uint32_t inc )
 }
 
 /* init2 xors IV with input parameter block */
-int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
+int _cryptonite_blake2s_init_param( blake2s_state *S, const blake2s_param *P )
 {
   size_t i;
   /*blake2s_init0( S ); */
@@ -90,7 +90,7 @@ int blake2s_init_param( blake2s_state *S, const blake2s_param *P )
 
 
 /* Some sort of default parameter block initialization, for sequential blake2s */
-int blake2s_init( blake2s_state *S, size_t outlen )
+int _cryptonite_blake2s_init( blake2s_state *S, size_t outlen )
 {
   blake2s_param P[1];
 
@@ -110,11 +110,11 @@ int blake2s_init( blake2s_state *S, size_t outlen )
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
 
-  return blake2s_init_param( S, P );
+  return _cryptonite_blake2s_init_param( S, P );
 }
 
 
-int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t keylen )
 {
   blake2s_param P[1];
 
@@ -136,14 +136,14 @@ int blake2s_init_key( blake2s_state *S, size_t outlen, const void *key, size_t k
   memset( P->salt,     0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
 
-  if( blake2s_init_param( S, P ) < 0 )
+  if( _cryptonite_blake2s_init_param( S, P ) < 0 )
     return -1;
 
   {
     uint8_t block[BLAKE2S_BLOCKBYTES];
     memset( block, 0, BLAKE2S_BLOCKBYTES );
     memcpy( block, key, keylen );
-    blake2s_update( S, block, BLAKE2S_BLOCKBYTES );
+    _cryptonite_blake2s_update( S, block, BLAKE2S_BLOCKBYTES );
     secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
   }
   return 0;
@@ -206,7 +206,7 @@ static void blake2s_compress( blake2s_state *S, const uint8_t block[BLAKE2S_BLOC
   STOREU( &S->h[4], _mm_xor_si128( ff1, _mm_xor_si128( row2, row4 ) ) );
 }
 
-int blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   if( inlen > 0 )
@@ -233,7 +233,7 @@ int blake2s_update( blake2s_state *S, const void *pin, size_t inlen )
   return 0;
 }
 
-int blake2s_final( blake2s_state *S, void *out, size_t outlen )
+int _cryptonite_blake2s_final( blake2s_state *S, void *out, size_t outlen )
 {
   uint8_t buffer[BLAKE2S_OUTBYTES] = {0};
   size_t i;
@@ -275,15 +275,15 @@ int blake2s( void *out, size_t outlen, const void *in, size_t inlen, const void
 
   if( keylen > 0 )
   {
-    if( blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1;
+    if( _cryptonite_blake2s_init_key( S, outlen, key, keylen ) < 0 ) return -1;
   }
   else
   {
-    if( blake2s_init( S, outlen ) < 0 ) return -1;
+    if( _cryptonite_blake2s_init( S, outlen ) < 0 ) return -1;
   }
 
-  blake2s_update( S, ( const uint8_t * )in, inlen );
+  _cryptonite_blake2s_update( S, ( const uint8_t * )in, inlen );
-  blake2s_final( S, out, outlen );
+  _cryptonite_blake2s_final( S, out, outlen );
   return 0;
 }
 
@@ -330,21 +330,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2s_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2s_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2s_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2s_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2s_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2s_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2s_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2s_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/sse/blake2sp.c

@@ -35,7 +35,7 @@
 */
 static int blake2sp_init_leaf_param( blake2s_state *S, const blake2s_param *P )
 {
-  int err = blake2s_init_param(S, P);
+  int err = _cryptonite_blake2s_init_param(S, P);
   S->outlen = P->inner_length;
   return err;
 }
@@ -71,11 +71,11 @@ static int blake2sp_init_root( blake2s_state *S, size_t outlen, size_t keylen )
   P->inner_length = BLAKE2S_OUTBYTES;
   memset( P->salt, 0, sizeof( P->salt ) );
   memset( P->personal, 0, sizeof( P->personal ) );
-  return blake2s_init_param( S, P );
+  return _cryptonite_blake2s_init_param( S, P );
 }
 
 
-int blake2sp_init( blake2sp_state *S, size_t outlen )
+int _cryptonite_blake2sp_init( blake2sp_state *S, size_t outlen )
 {
   size_t i;
 
@@ -96,7 +96,7 @@ int blake2sp_init( blake2sp_state *S, size_t outlen )
   return 0;
 }
 
-int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t keylen )
 {
   size_t i;
 
@@ -122,7 +122,7 @@ int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2s_update( S->S[i], block, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S->S[i], block, BLAKE2S_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -130,7 +130,7 @@ int blake2sp_init_key( blake2sp_state *S, size_t outlen, const void *key, size_t
 }
 
 
-int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
+int _cryptonite_blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
 {
   const unsigned char * in = (const unsigned char *)pin;
   size_t left = S->buflen;
@@ -142,7 +142,7 @@ int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
     memcpy( S->buf + left, in, fill );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, BLAKE2S_BLOCKBYTES );
 
     in += fill;
     inlen -= fill;
@@ -165,7 +165,7 @@ int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES )
     {
-      blake2s_update( S->S[i], in__, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S->S[i], in__, BLAKE2S_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
     }
@@ -182,7 +182,7 @@ int blake2sp_update( blake2sp_state *S, const void *pin, size_t inlen )
 }
 
 
-int blake2sp_final( blake2sp_state *S, void *out, size_t outlen )
+int _cryptonite_blake2sp_final( blake2sp_state *S, void *out, size_t outlen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2S_OUTBYTES];
   size_t i;
@@ -199,20 +199,20 @@ int blake2sp_final( blake2sp_state *S, void *out, size_t outlen )
 
       if( left > BLAKE2S_BLOCKBYTES ) left = BLAKE2S_BLOCKBYTES;
 
-      blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, left );
+      _cryptonite_blake2s_update( S->S[i], S->buf + i * BLAKE2S_BLOCKBYTES, left );
     }
 
-    blake2s_final( S->S[i], hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_final( S->S[i], hash[i], BLAKE2S_OUTBYTES );
   }
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2s_update( S->R, hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_update( S->R, hash[i], BLAKE2S_OUTBYTES );
 
-  return blake2s_final( S->R, out, S->outlen );
+  return _cryptonite_blake2s_final( S->R, out, S->outlen );
 }
 
 
-int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
+int _cryptonite_blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
 {
   uint8_t hash[PARALLELISM_DEGREE][BLAKE2S_OUTBYTES];
   blake2s_state S[PARALLELISM_DEGREE][1];
@@ -242,7 +242,7 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
     memcpy( block, key, keylen );
 
     for( i = 0; i < PARALLELISM_DEGREE; ++i )
-      blake2s_update( S[i], block, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S[i], block, BLAKE2S_BLOCKBYTES );
 
     secure_zero_memory( block, BLAKE2S_BLOCKBYTES ); /* Burn the key from stack */
   }
@@ -263,7 +263,7 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
 
     while( inlen__ >= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES )
     {
-      blake2s_update( S[i], in__, BLAKE2S_BLOCKBYTES );
+      _cryptonite_blake2s_update( S[i], in__, BLAKE2S_BLOCKBYTES );
       in__ += PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
       inlen__ -= PARALLELISM_DEGREE * BLAKE2S_BLOCKBYTES;
     }
@@ -272,10 +272,10 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
     {
       const size_t left = inlen__ - i * BLAKE2S_BLOCKBYTES;
       const size_t len = left <= BLAKE2S_BLOCKBYTES ? left : BLAKE2S_BLOCKBYTES;
-      blake2s_update( S[i], in__, len );
+      _cryptonite_blake2s_update( S[i], in__, len );
     }
 
-    blake2s_final( S[i], hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_final( S[i], hash[i], BLAKE2S_OUTBYTES );
   }
 
   if( blake2sp_init_root( FS, outlen, keylen ) < 0 )
@@ -284,9 +284,9 @@ int blake2sp( void *out, size_t outlen, const void *in, size_t inlen, const void
   FS->last_node = 1;
 
   for( i = 0; i < PARALLELISM_DEGREE; ++i )
-    blake2s_update( FS, hash[i], BLAKE2S_OUTBYTES );
+    _cryptonite_blake2s_update( FS, hash[i], BLAKE2S_OUTBYTES );
 
-  return blake2s_final( FS, out, outlen );
+  return _cryptonite_blake2s_final( FS, out, outlen );
 }
 
 #if defined(BLAKE2SP_SELFTEST)
@@ -308,7 +308,7 @@ int main( void )
   for( i = 0; i < BLAKE2_KAT_LENGTH; ++i )
   {
     uint8_t hash[BLAKE2S_OUTBYTES];
-    blake2sp( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
+    _cryptonite_blake2sp( hash, BLAKE2S_OUTBYTES, buf, i, key, BLAKE2S_KEYBYTES );
 
     if( 0 != memcmp( hash, blake2sp_keyed_kat[i], BLAKE2S_OUTBYTES ) )
     {
@@ -325,21 +325,21 @@ int main( void )
       size_t mlen = i;
       int err = 0;
 
-      if( (err = blake2sp_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2sp_init_key(&S, BLAKE2S_OUTBYTES, key, BLAKE2S_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2sp_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2sp_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2sp_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2sp_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2sp_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
+      if ( (err = _cryptonite_blake2sp_final(&S, hash, BLAKE2S_OUTBYTES)) < 0) {
         goto fail;
       }
 

cbits/blake2/sse/blake2xb.c

@@ -23,11 +23,11 @@
 #include "blake2.h"
 #include "blake2-impl.h"
 
-int blake2xb_init( blake2xb_state *S, const size_t outlen ) {
+int _cryptonite_blake2xb_init( blake2xb_state *S, const size_t outlen ) {
-  return blake2xb_init_key(S, outlen, NULL, 0);
+  return _cryptonite_blake2xb_init_key(S, outlen, NULL, 0);
 }
 
-int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen)
+int _cryptonite_blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key, size_t keylen)
 {
   if ( outlen == 0 || outlen > 0xFFFFFFFFUL ) {
     return -1;
@@ -55,7 +55,7 @@ int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key,
   memset( S->P->salt,     0, sizeof( S->P->salt ) );
   memset( S->P->personal, 0, sizeof( S->P->personal ) );
 
-  if( blake2b_init_param( S->S, S->P ) < 0 ) {
+  if( _cryptonite_blake2b_init_param( S->S, S->P ) < 0 ) {
     return -1;
   }
 
@@ -63,17 +63,17 @@ int blake2xb_init_key( blake2xb_state *S, const size_t outlen, const void *key,
     uint8_t block[BLAKE2B_BLOCKBYTES];
     memset(block, 0, BLAKE2B_BLOCKBYTES);
     memcpy(block, key, keylen);
-    blake2b_update(S->S, block, BLAKE2B_BLOCKBYTES);
+    _cryptonite_blake2b_update(S->S, block, BLAKE2B_BLOCKBYTES);
     secure_zero_memory(block, BLAKE2B_BLOCKBYTES);
   }
   return 0;
 }
 
-int blake2xb_update( blake2xb_state *S, const void *in, size_t inlen ) {
+int _cryptonite_blake2xb_update( blake2xb_state *S, const void *in, size_t inlen ) {
-    return blake2b_update( S->S, in, inlen );
+    return _cryptonite_blake2b_update( S->S, in, inlen );
 }
 
-int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
+int _cryptonite_blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
 
   blake2b_state C[1];
   blake2b_param P[1];
@@ -98,7 +98,7 @@ int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
   }
 
   /* Finalize the root hash */
-  if (blake2b_final(S->S, root, BLAKE2B_OUTBYTES) < 0) {
+  if (_cryptonite_blake2b_final(S->S, root, BLAKE2B_OUTBYTES) < 0) {
     return -1;
   }
 
@@ -117,10 +117,10 @@ int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
     /* Initialize state */
     P->digest_length = block_size;
     store32(&P->node_offset, i);
-    blake2b_init_param(C, P);
+    _cryptonite_blake2b_init_param(C, P);
     /* Process key if needed */
-    blake2b_update(C, root, BLAKE2B_OUTBYTES);
+    _cryptonite_blake2b_update(C, root, BLAKE2B_OUTBYTES);
-    if (blake2b_final(C, (uint8_t *)out + i * BLAKE2B_OUTBYTES, block_size) < 0 ) {
+    if (_cryptonite_blake2b_final(C, (uint8_t *)out + i * BLAKE2B_OUTBYTES, block_size) < 0 ) {
         return -1;
     }
     outlen -= block_size;
@@ -133,7 +133,7 @@ int blake2xb_final( blake2xb_state *S, void *out, size_t outlen) {
 
 }
 
-int blake2xb(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
+int _cryptonite_blake2xb(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
 {
   blake2xb_state S[1];
 
@@ -154,15 +154,15 @@ int blake2xb(void *out, size_t outlen, const void *in, size_t inlen, const void
     return -1;
 
   /* Initialize the root block structure */
-  if (blake2xb_init_key(S, outlen, key, keylen) < 0) {
+  if (_cryptonite_blake2xb_init_key(S, outlen, key, keylen) < 0) {
     return -1;
   }
 
   /* Absorb the input message */
-  blake2xb_update(S, in, inlen);
+  _cryptonite_blake2xb_update(S, in, inlen);
 
   /* Compute the root node of the tree and the final hash using the counter construction */
-  return blake2xb_final(S, out, outlen);
+  return _cryptonite_blake2xb_final(S, out, outlen);
 }
 
 #if defined(BLAKE2XB_SELFTEST)
@@ -189,7 +189,7 @@ int main( void )
   for( outlen = 1; outlen <= BLAKE2_KAT_LENGTH; ++outlen )
   {
       uint8_t hash[BLAKE2_KAT_LENGTH] = {0};
-      if( blake2xb( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2B_KEYBYTES ) < 0 ) {
+      if( _cryptonite_blake2xb( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2B_KEYBYTES ) < 0 ) {
         goto fail;
       }
 
@@ -208,21 +208,21 @@ int main( void )
       size_t mlen = BLAKE2_KAT_LENGTH;
       int err = 0;
 
-      if( (err = blake2xb_init_key(&S, outlen, key, BLAKE2B_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2xb_init_key(&S, outlen, key, BLAKE2B_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2xb_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2xb_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2xb_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2xb_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2xb_final(&S, hash, outlen)) < 0) {
+      if ( (err = _cryptonite_blake2xb_final(&S, hash, outlen)) < 0) {
         goto fail;
       }
 

cbits/blake2/sse/blake2xs.c

@@ -23,11 +23,11 @@
 #include "blake2.h"
 #include "blake2-impl.h"
 
-int blake2xs_init( blake2xs_state *S, const size_t outlen ) {
+int _cryptonite_blake2xs_init( blake2xs_state *S, const size_t outlen ) {
-  return blake2xs_init_key(S, outlen, NULL, 0);
+  return _cryptonite_blake2xs_init_key(S, outlen, NULL, 0);
 }
 
-int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen )
+int _cryptonite_blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key, size_t keylen )
 {
   if ( outlen == 0 || outlen > 0xFFFFUL ) {
     return -1;
@@ -54,7 +54,7 @@ int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key,
   memset( S->P->salt,     0, sizeof( S->P->salt ) );
   memset( S->P->personal, 0, sizeof( S->P->personal ) );
 
-  if( blake2s_init_param( S->S, S->P ) < 0 ) {
+  if( _cryptonite_blake2s_init_param( S->S, S->P ) < 0 ) {
     return -1;
   }
 
@@ -62,17 +62,17 @@ int blake2xs_init_key( blake2xs_state *S, const size_t outlen, const void *key,
     uint8_t block[BLAKE2S_BLOCKBYTES];
     memset(block, 0, BLAKE2S_BLOCKBYTES);
     memcpy(block, key, keylen);
-    blake2s_update(S->S, block, BLAKE2S_BLOCKBYTES);
+    _cryptonite_blake2s_update(S->S, block, BLAKE2S_BLOCKBYTES);
     secure_zero_memory(block, BLAKE2S_BLOCKBYTES);
   }
   return 0;
 }
 
-int blake2xs_update( blake2xs_state *S, const void *in, size_t inlen ) {
+int _cryptonite_blake2xs_update( blake2xs_state *S, const void *in, size_t inlen ) {
-  return blake2s_update( S->S, in, inlen );
+  return _cryptonite_blake2s_update( S->S, in, inlen );
 }
 
-int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
+int _cryptonite_blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
 
   blake2s_state C[1];
   blake2s_param P[1];
@@ -97,7 +97,7 @@ int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
   }
 
   /* Finalize the root hash */
-  if (blake2s_final(S->S, root, BLAKE2S_OUTBYTES) < 0) {
+  if (_cryptonite_blake2s_final(S->S, root, BLAKE2S_OUTBYTES) < 0) {
     return -1;
   }
 
@@ -116,10 +116,10 @@ int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
     /* Initialize state */
     P->digest_length = block_size;
     store32(&P->node_offset, i);
-    blake2s_init_param(C, P);
+    _cryptonite_blake2s_init_param(C, P);
     /* Process key if needed */
-    blake2s_update(C, root, BLAKE2S_OUTBYTES);
+    _cryptonite_blake2s_update(C, root, BLAKE2S_OUTBYTES);
-    if (blake2s_final(C, (uint8_t *)out + i * BLAKE2S_OUTBYTES, block_size) < 0) {
+    if (_cryptonite_blake2s_final(C, (uint8_t *)out + i * BLAKE2S_OUTBYTES, block_size) < 0) {
         return -1;
     }
     outlen -= block_size;
@@ -131,7 +131,7 @@ int blake2xs_final(blake2xs_state *S, void *out, size_t outlen) {
   return 0;
 }
 
-int blake2xs(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
+int _cryptonite_blake2xs(void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen)
 {
   blake2xs_state S[1];
 
@@ -152,15 +152,15 @@ int blake2xs(void *out, size_t outlen, const void *in, size_t inlen, const void
     return -1;
 
   /* Initialize the root block structure */
-  if (blake2xs_init_key(S, outlen, key, keylen) < 0) {
+  if (_cryptonite_blake2xs_init_key(S, outlen, key, keylen) < 0) {
     return -1;
   }
 
   /* Absorb the input message */
-  blake2xs_update(S, in, inlen);
+  _cryptonite_blake2xs_update(S, in, inlen);
 
   /* Compute the root node of the tree and the final hash using the counter construction */
-  return blake2xs_final(S, out, outlen);
+  return _cryptonite_blake2xs_final(S, out, outlen);
 }
 
 #if defined(BLAKE2XS_SELFTEST)
@@ -187,7 +187,7 @@ int main( void )
   for( outlen = 1; outlen <= BLAKE2_KAT_LENGTH; ++outlen )
   {
       uint8_t hash[BLAKE2_KAT_LENGTH] = {0};
-      if( blake2xs( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2S_KEYBYTES ) < 0 ) {
+      if( _cryptonite_blake2xs( hash, outlen, buf, BLAKE2_KAT_LENGTH, key, BLAKE2S_KEYBYTES ) < 0 ) {
         goto fail;
       }
 
@@ -206,21 +206,21 @@ int main( void )
       size_t mlen = BLAKE2_KAT_LENGTH;
       int err = 0;
 
-      if( (err = blake2xs_init_key(&S, outlen, key, BLAKE2S_KEYBYTES)) < 0 ) {
+      if( (err = _cryptonite_blake2xs_init_key(&S, outlen, key, BLAKE2S_KEYBYTES)) < 0 ) {
         goto fail;
       }
 
       while (mlen >= step) {
-        if ( (err = blake2xs_update(&S, p, step)) < 0 ) {
+        if ( (err = _cryptonite_blake2xs_update(&S, p, step)) < 0 ) {
           goto fail;
         }
         mlen -= step;
         p += step;
       }
-      if ( (err = blake2xs_update(&S, p, mlen)) < 0) {
+      if ( (err = _cryptonite_blake2xs_update(&S, p, mlen)) < 0) {
         goto fail;
       }
-      if ( (err = blake2xs_final(&S, hash, outlen)) < 0) {
+      if ( (err = _cryptonite_blake2xs_final(&S, hash, outlen)) < 0) {
         goto fail;
       }
 

cbits/cryptonite_blake2b.c

@@ -2,15 +2,15 @@
 
 void cryptonite_blake2b_init(blake2b_ctx *ctx, uint32_t hashlen)
 {
-	blake2b_init(ctx, hashlen / 8);
+	_cryptonite_blake2b_init(ctx, hashlen / 8);
 }
 
 void cryptonite_blake2b_update(blake2b_ctx *ctx, const uint8_t *data, uint32_t len)
 {
-	blake2b_update(ctx, data, len);
+	_cryptonite_blake2b_update(ctx, data, len);
 }
 
 void cryptonite_blake2b_finalize(blake2b_ctx *ctx, uint32_t hashlen, uint8_t *out)
 {
-	blake2b_final(ctx, out, hashlen / 8);
+	_cryptonite_blake2b_final(ctx, out, hashlen / 8);
 }

cbits/cryptonite_blake2bp.c

@@ -2,15 +2,15 @@
 
 void cryptonite_blake2bp_init(blake2bp_ctx *ctx, uint32_t hashlen)
 {
-	blake2bp_init(ctx, hashlen / 8);
+	_cryptonite_blake2bp_init(ctx, hashlen / 8);
 }
 
 void cryptonite_blake2bp_update(blake2bp_ctx *ctx, const uint8_t *data, uint32_t len)
 {
-	blake2bp_update(ctx, data, len);
+	_cryptonite_blake2bp_update(ctx, data, len);
 }
 
 void cryptonite_blake2bp_finalize(blake2bp_ctx *ctx, uint32_t hashlen, uint8_t *out)
 {
-	blake2bp_final(ctx, out, hashlen / 8);
+	_cryptonite_blake2bp_final(ctx, out, hashlen / 8);
 }

cbits/cryptonite_blake2s.c

@@ -2,15 +2,15 @@
 
 void cryptonite_blake2s_init(blake2s_ctx *ctx, uint32_t hashlen)
 {
-	blake2s_init(ctx, hashlen / 8);
+	_cryptonite_blake2s_init(ctx, hashlen / 8);
 }
 
 void cryptonite_blake2s_update(blake2s_ctx *ctx, const uint8_t *data, uint32_t len)
 {
-	blake2s_update(ctx, data, len);
+	_cryptonite_blake2s_update(ctx, data, len);
 }
 
 void cryptonite_blake2s_finalize(blake2s_ctx *ctx, uint32_t hashlen, uint8_t *out)
 {
-	blake2s_final(ctx, out, hashlen / 8);
+	_cryptonite_blake2s_final(ctx, out, hashlen / 8);
 }

cbits/cryptonite_blake2sp.c

@@ -2,15 +2,15 @@
 
 void cryptonite_blake2sp_init(blake2sp_ctx *ctx, uint32_t hashlen)
 {
-	blake2sp_init(ctx, hashlen / 8);
+	_cryptonite_blake2sp_init(ctx, hashlen / 8);
 }
 
 void cryptonite_blake2sp_update(blake2sp_ctx *ctx, const uint8_t *data, uint32_t len)
 {
-	blake2sp_update(ctx, data, len);
+	_cryptonite_blake2sp_update(ctx, data, len);
 }
 
 void cryptonite_blake2sp_finalize(blake2sp_ctx *ctx, uint32_t hashlen, uint8_t *out)
 {
-	blake2sp_final(ctx, out, hashlen / 8);
+	_cryptonite_blake2sp_final(ctx, out, hashlen / 8);
 }

cbits/cryptonite_sha3.c

@@ -121,14 +121,14 @@ void cryptonite_sha3_update(struct sha3_ctx *ctx, const uint8_t *data, uint32_t
 	to_fill = ctx->bufsz - ctx->bufindex;
 
 	if (ctx->bufindex == ctx->bufsz) {
-		sha3_do_chunk(ctx->state, (uint64_t *) ctx->buf, ctx->bufsz / 8);
+		sha3_do_chunk(ctx->state, ctx->bufwords, ctx->bufsz / 8);
 		ctx->bufindex = 0;
 	}
 
 	/* process partial buffer if there's enough data to make a block */
 	if (ctx->bufindex && len >= to_fill) {
 		memcpy(ctx->buf + ctx->bufindex, data, to_fill);
-		sha3_do_chunk(ctx->state, (uint64_t *) ctx->buf, ctx->bufsz / 8);
+		sha3_do_chunk(ctx->state, ctx->bufwords, ctx->bufsz / 8);
 		len -= to_fill;
 		data += to_fill;
 		ctx->bufindex = 0;
@@ -159,7 +159,7 @@ void cryptonite_sha3_finalize_with_pad_byte(struct sha3_ctx *ctx, uint8_t pad_by
 {
 	/* process full buffer if needed */
 	if (ctx->bufindex == ctx->bufsz) {
-		sha3_do_chunk(ctx->state, (uint64_t *) ctx->buf, ctx->bufsz / 8);
+		sha3_do_chunk(ctx->state, ctx->bufwords, ctx->bufsz / 8);
 		ctx->bufindex = 0;
 	}
 
@@ -169,7 +169,7 @@ void cryptonite_sha3_finalize_with_pad_byte(struct sha3_ctx *ctx, uint8_t pad_by
 	ctx->buf[ctx->bufsz - 1] |= 0x80;
 
 	/* process */
-	sha3_do_chunk(ctx->state, (uint64_t *) ctx->buf, ctx->bufsz / 8);
+	sha3_do_chunk(ctx->state, ctx->bufwords, ctx->bufsz / 8);
 	ctx->bufindex = 0;
 }
 
@@ -250,3 +250,31 @@ void cryptonite_keccak_finalize(struct sha3_ctx *ctx, uint32_t hashlen, uint8_t
 	cryptonite_sha3_finalize_with_pad_byte(ctx, 1);
 	cryptonite_sha3_output(ctx, out, hashlen / 8);
 }
+
+
+void cryptonite_sha3_ctx_to_be(struct sha3_ctx *ctx, uint8_t *out)
+{
+	void *ptr = out;
+        const uint32_t bufindex_be = cpu_to_be32(ctx->bufindex);
+	memcpy(ptr, &bufindex_be, sizeof(uint32_t));
+	ptr += sizeof(uint32_t);
+        const uint32_t bufsz_be = cpu_to_be32(ctx->bufsz);
+	memcpy(ptr, &bufsz_be, sizeof(uint32_t));
+	ptr += sizeof(uint32_t);
+	cpu_to_be64_array((uint64_t *) ptr, ctx->state, 25);
+	ptr += 25 * sizeof(uint64_t);
+	cpu_to_be64_array((uint64_t *) ptr, ctx->bufwords, ctx->bufsz / sizeof(uint64_t));
+}
+
+void cryptonite_sha3_be_to_ctx(uint8_t *in, struct sha3_ctx *ctx)
+{
+  const uint32_t bufindex_cpu = be32_to_cpu(* (uint32_t *) in);
+	memcpy(&ctx->bufindex, &bufindex_cpu, sizeof(uint32_t));
+	in += sizeof(uint32_t);
+	const uint32_t bufsz_cpu = be32_to_cpu(* (uint32_t *) in);
+	memcpy(&ctx->bufsz, &bufsz_cpu, sizeof(uint32_t));
+	in += sizeof(uint32_t);
+	be64_to_cpu_array(ctx->state, (uint64_t *) in, 25);
+	in += 25 * sizeof(uint64_t);
+	be64_to_cpu_array(ctx->bufwords, (uint64_t *) in, ctx->bufsz / sizeof(uint64_t));
+}

cbits/cryptonite_sha3.h

@@ -29,9 +29,12 @@
 struct sha3_ctx
 {
 	uint32_t bufindex;
-	uint32_t bufsz;
+        uint32_t bufsz; /* size of buf, i.e. in bytes */
 	uint64_t state[25];
-	uint8_t  buf[0]; /* maximum SHAKE128 is 168 bytes, otherwise buffer can be decreased */
+        union { /* maximum SHAKE128 is 168 bytes, otherwise buffer can be decreased */
+	  uint8_t buf[0];
+	  uint64_t bufwords[0];
+	};
 };
 
 #define SHA3_CTX_SIZE		sizeof(struct sha3_ctx)
@@ -64,4 +67,7 @@ void cryptonite_keccak_init(struct sha3_ctx *ctx, uint32_t hashlen);
 void cryptonite_keccak_update(struct sha3_ctx *ctx, uint8_t *data, uint32_t len);
 void cryptonite_keccak_finalize(struct sha3_ctx *ctx, uint32_t hashlen, uint8_t *out);
 
+void cryptonite_sha3_ctx_to_be(struct sha3_ctx *ctx, uint8_t *out);
+void cryptonite_sha3_be_to_ctx(uint8_t *in, struct sha3_ctx *ctx);
+
 #endif

cryptonite.cabal

@@ -1,5 +1,5 @@
 Name:                cryptonite
-version:             0.29
+version:             0.30
 Synopsis:            Cryptography Primitives sink
 Description:
     A repository of cryptographic primitives.
@@ -36,7 +36,7 @@ Build-Type:          Simple
 Homepage:            https://github.com/haskell-crypto/cryptonite
 Bug-reports:         https://github.com/haskell-crypto/cryptonite/issues
 Cabal-Version:       1.18
-tested-with:         GHC==8.8.2, GHC==8.6.5, GHC==8.4.4, GHC==8.2.2, GHC==8.0.2
+tested-with:         GHC==9.2.2, GHC==9.0.2, GHC==8.10.7, GHC==8.8.4
 extra-doc-files:     README.md CHANGELOG.md
 extra-source-files:  cbits/*.h
                      cbits/aes/*.h
@@ -245,7 +245,7 @@ Library
                      Crypto.Internal.Nat
                      Crypto.Internal.Words
                      Crypto.Internal.WordArray
-  if impl(ghc < 8.0)
+  if impl(ghc < 8.8)
     Buildable: False
   else
     Build-depends:   base
@@ -412,6 +412,7 @@ Test-Suite test-cryptonite
                      ECC.Edwards25519
                      ECDSA
                      Hash
+                     ResumableHash
                      Imports
                      KAT_AES.KATCBC
                      KAT_AES.KATECB

flake.lock

@@ -0,0 +1,44 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1619345332,
+        "narHash": "sha256-qHnQkEp1uklKTpx3MvKtY6xzgcqXDsz5nLilbbuL+3A=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "2ebf2558e5bf978c7fb8ea927dfaed8fefab2e28",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "ref": "master",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1620323686,
+        "narHash": "sha256-+gfcE3YTGl+Osc8HzOUXSFO8/0PAK4J8ZxCXZ4hjXHI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "dfacb8329b2236688b9a1e705116203a213b283a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "master",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,30 @@
+{
+  inputs = {
+    nixpkgs = {
+      type = "github";
+      owner = "NixOS";
+      repo = "nixpkgs";
+      ref = "master";
+    };
+    flake-utils = {
+      type = "github";
+      owner = "numtide";
+      repo = "flake-utils";
+      ref = "master";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, ... }: flake-utils.lib.eachDefaultSystem
+    (system:
+      let pkgs = import nixpkgs {
+            inherit system;
+            config.allowUnfree = true;
+          };
+      in {
+        devShell = pkgs.mkShell {
+          name = "uni2work-cryptonite";
+          nativeBuildInputs = with pkgs.haskellPackages; [ stack ];
+        };
+      }
+    );
+}

stack.yaml

@@ -1,3 +1,2 @@
 # ~*~ auto-generated by haskell-ci with config : 4fdddfa41dd039e198b8d125a70471f7dd140fa01001d99126af56fb31429ece ~*~
-{ resolver: lts-14.27, packages: [ '.' ], extra-deps: [], flags: {} }
+{ resolver: nightly-2022-03-12, packages: [ '.' ], extra-deps: [ memory-0.17.0 ], flags: {} }
-

tests/ResumableHash.hs

@@ -0,0 +1,65 @@
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TupleSections #-}
+
+module ResumableHash (tests) where
+
+import Crypto.Hash ( SHAKE128(..), SHAKE256(..), SHA3_224(..), SHA3_256(..), SHA3_384(..), SHA3_512(..), Keccak_224(..), Keccak_256(..), Keccak_384(..), Keccak_512(..)
+                   , HashAlgorithm, HashAlgorithmResumable, Context, hashPutContext, hashGetContext)
+import qualified Crypto.Hash as Hash
+
+import qualified Data.ByteString as B
+import qualified Data.ByteString.Lazy as LB
+import qualified Data.ByteString.Builder as Builder
+
+import Data.Maybe (fromMaybe)
+
+import Imports
+
+data HashResume a = HashResume [ByteString] [ByteString] (Hash.Digest a)
+  deriving (Show, Eq)
+
+instance HashAlgorithm a => Arbitrary (HashResume a) where
+  arbitrary = do
+    (beforeChunks, afterChunks) <- oneof
+      [ ([], ) <$> (choose (1,20) >>= \n -> replicateM n (arbitraryBSof 1 99))
+      , (,) <$> (choose (1,20) >>= \n -> replicateM n (arbitraryBSof 1 99))
+            <*> (choose (1,20) >>= \n -> replicateM n (arbitraryBSof 1 99))
+      , (, []) <$> (choose (1,20) >>= \n -> replicateM n (arbitraryBSof 1 99))
+      , pure ([], [])
+      ]
+    return $ HashResume beforeChunks afterChunks (Hash.hashlazy . LB.fromChunks $ beforeChunks ++ afterChunks)
+
+resumeTests =
+    [ testResumeProperties "SHAKE128_256" (SHAKE128 :: SHAKE128 256)
+    , testResumeProperties "SHAKE256_256" (SHAKE256 :: SHAKE256 512)
+    , testResumeProperties "SHA3_224" SHA3_224
+    , testResumeProperties "SHA3_256" SHA3_256
+    , testResumeProperties "SHA3_384" SHA3_384
+    , testResumeProperties "SHA3_512" SHA3_512
+    , testResumeProperties "Keccak_224" Keccak_224
+    , testResumeProperties "Keccak_256" Keccak_256
+    , testResumeProperties "Keccak_384" Keccak_384
+    , testResumeProperties "Keccak_512" Keccak_512
+    , testCase "serializes big endian" $ test_is_be 168 (SHAKE128 :: SHAKE128 256)
+    ]
+  where
+        testResumeProperties :: HashAlgorithmResumable a => TestName -> a -> TestTree
+        testResumeProperties name a = testGroup name
+          [ testProperty "resume" (prop_resume_start a)
+          ]
+
+        prop_resume_start :: forall a. HashAlgorithmResumable a => a -> HashResume a -> Bool
+        prop_resume_start _ (HashResume beforeChunks afterChunks result) = fromMaybe False $ do
+          let beforeCtx = Hash.hashUpdates (Hash.hashInit :: Context a) beforeChunks
+          ctx <- hashGetContext (hashPutContext beforeCtx :: ByteString)
+          let afterCtx = Hash.hashUpdates ctx afterChunks
+          return $ result `assertEq` Hash.hashFinalize afterCtx
+
+        test_is_be :: forall a. HashAlgorithmResumable a => Word32 -> a -> Assertion
+        test_is_be size _ = slice @=? size_be
+          where size_be = LB.toStrict $ Builder.toLazyByteString $ Builder.word32BE size
+                serialized = hashPutContext (Hash.hashInit :: Context a) :: ByteString
+                slice = B.take 4 $ B.drop 4 serialized
+
+tests = testGroup "ResumableHash" resumeTests

tests/Tests.hs

@@ -13,6 +13,7 @@ import qualified ECC
 import qualified ECC.Edwards25519
 import qualified ECDSA
 import qualified Hash
+import qualified ResumableHash
 import qualified Poly1305
 import qualified Salsa
 import qualified XSalsa
@@ -54,6 +55,7 @@ tests = testGroup "cryptonite"
     , Number.tests
     , Number.F2m.tests
     , Hash.tests
+    , ResumableHash.tests
     , Padding.tests
     , testGroup "ConstructHash"
         [ KAT_MiyaguchiPreneel.tests