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fix ECIES to work with the rewrite

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This commit is contained in:
Vincent Hanquez 2016-12-02 15:03:08 +00:00
parent 7e6d7ccb1c
commit 8b5a36f44e
1 changed files with 9 additions and 6 deletions
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15
Crypto/PubKey/ECIES.hs
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@ -14,20 +14,23 @@ module Crypto.PubKey.ECIES
import Crypto.ECC
import Crypto.Random
import Crypto.Internal.Proxy
-- | Generate random a new Shared secret and the associated point
-- to do a ECIES style encryption
deriveEncrypt :: (MonadRandom randomly, EllipticCurveDH curve)
=> Point curve -- ^ the public key of the receiver
=> proxy curve -- ^ representation of the curve
-> Point curve -- ^ the public key of the receiver
-> randomly (Point curve, SharedSecret)
deriveEncrypt pub = do
(KeyPair rPoint rScalar) <- curveGenerateKeyPair
return (rPoint, ecdh rScalar pub)
deriveEncrypt proxy pub = do
(KeyPair rPoint rScalar) <- curveGenerateKeyPair proxy
return (rPoint, ecdh proxy rScalar pub)
-- | Derive the shared secret with the receiver key
-- and the R point of the scheme.
deriveDecrypt :: EllipticCurveDH curve
=> Point curve -- ^ The received R (supposedly, randomly generate on the encrypt side)
=> proxy curve -- ^ representation of the curve
-> Point curve -- ^ The received R (supposedly, randomly generated on the encrypt side)
-> Scalar curve -- ^ The secret key of the receiver
-> SharedSecret
deriveDecrypt point secret = ecdh secret point
deriveDecrypt proxy point secret = ecdh proxy secret point