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adding Curve_P384R1.

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This commit is contained in:
Kazu Yamamoto 2016-11-16 10:02:00 +09:00
parent 9a0ec9166a
commit dea0469c61
1 changed files with 25 additions and 0 deletions
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Crypto/ECC.hs
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@ -11,6 +11,7 @@
{-# LANGUAGE TypeFamilies #-}
module Crypto.ECC
( Curve_P256R1(..)
, Curve_P384R1(..)
, Curve_P521R1(..)
, EllipticCurve(..)
, EllipticCurveDH(..)
@ -110,6 +111,30 @@ instance EllipticCurveDH Curve_P256R1 where
len = (256 + 7) `div` 8
shared = SharedSecret $ i2ospOf_ len x
data Curve_P384R1 = Curve_P384R1
instance EllipticCurve Curve_P384R1 where
newtype Point Curve_P384R1 = P384Point { unP384Point :: H.Point }
newtype Scalar Curve_P384R1 = P384Scalar { unP384Scalar :: H.PrivateNumber }
curveGetOrder _ = H.ecc_n $ H.common_curve $ H.getCurveByName H.SEC_p384r1
curveGetBasePoint = P384Point $ H.ecc_g $ H.common_curve $ H.getCurveByName H.SEC_p384r1
curveOfScalar _ = Curve_P384R1
curveOfPoint _ = Curve_P384R1
curveGenerateScalar = P384Scalar <$> H.scalarGenerate (H.getCurveByName H.SEC_p384r1)
curveGenerateKeyPair = toKeyPair <$> H.scalarGenerate (H.getCurveByName H.SEC_p384r1)
where toKeyPair scalar = KeyPair (P384Point $ H.pointBaseMul (H.getCurveByName H.SEC_p384r1) scalar) (P384Scalar scalar)
instance EllipticCurveArith Curve_P384R1 where
pointAdd a b = P384Point $ (H.pointAdd (H.getCurveByName H.SEC_p384r1) `on` unP384Point) a b
pointSmul s p = P384Point (H.pointMul (H.getCurveByName H.SEC_p384r1) (unP384Scalar s) (unP384Point p))
instance EllipticCurveDH Curve_P384R1 where
ecdh s p = shared
where
H.Point x _ = unP384Point $ pointSmul s p
len = (384 + 7) `div` 8
shared = SharedSecret $ i2ospOf_ len x
data Curve_P521R1 = Curve_P521R1
instance EllipticCurve Curve_P521R1 where