Haskoin.Crypto.Signature

ECDSA signatures using secp256k1 curve. Uses functions from upstream secp256k1 library.

Signatures

signHash :: Ctx -> SecKey -> Hash256 -> Sig

Sign a 256-bit hash using secp256k1 elliptic curve.

verifyHashSig :: Ctx -> Hash256 -> Sig -> PubKey -> Bool

Verify an ECDSA signature for a 256-bit hash.

isCanonicalHalfOrder :: Ctx -> Sig -> Bool

Is canonical half order.

decodeStrictSig :: Ctx -> ByteString -> Maybe Sig

Decode signature strictly.

exportSig :: Ctx -> Sig -> ByteString

Encode signature as strict DER.

Orphan instances

Marshal Ctx Sig

Methods

marshalPut :: MonadPut m => Ctx -> Sig -> m ()

marshalGet :: MonadGet m => Ctx -> m Sig

MarshalJSON Ctx Sig

Methods

marshalValue :: Ctx -> Sig -> Value

marshalEncoding :: Ctx -> Sig -> Encoding

unmarshalValue :: Ctx -> Value -> Parser Sig