Moduleweb3-crypto-1.1.0.0Haskell2010

Crypto.Ethereum.Signature

Recoverable Ethereum signature support.

valuehashMessage :: ByteArrayAccess message => message -> Digest Keccak_256

Ethereum standard hashed message.

The data will be UTF-8 HEX decoded and enveloped as follows: "x19Ethereum Signed Message:n" + message.length + message and hashed using keccak256.

valuesignMessage

Make Ethereum standard signature.

The message is before enveloped as follows: "x19Ethereum Signed Message:n" + message.length + message

WARNING: Vulnerable to timing attacks.

valuesignTransaction

:: ByteArray ba
=> (Maybe (Integer, Integer, Word8) -> ba)
Two way transaction packer (unsigned and signed)
-> PrivateKey
Private key
-> ba
Encoded transaction

Sign Ethereum transaction.

WARNING: Vulnerable to timing attacks.