Data.Hash.Keccak

| The code in this module uses internal OpenSSL APIs. It may break with new versions of OpenSSL. It may also be broken for existing versions of OpenSSL. Portability of the code is unknown.

ONLY USE THIS CODE AFTER YOU HAVE VERIFIED THAT IT WORKS WITH OUR VERSION OF OPENSSL.

For details see the file cbits/keccak.c.

Keccak-256

This is the latest version of Keccak-256 hash function that was submitted to the SHA3 competition. It is different from the final NIST SHA3 hash.

The difference between NIST SHA3-256 and Keccak-256 is the use of a different padding character for the input message. The former uses '0x06' and the latter uses '0x01'.

This version of Keccak-256 is used by the Ethereum project.

newtype Keccak256

Constructors

Keccak256 ShortByteString

Instances

IsString Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

fromString :: String -> Keccak256

Show Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

showsPrec :: Int -> Keccak256 -> ShowS

show :: Keccak256 -> String

showList :: [Keccak256] -> ShowS

Eq Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

(==) :: Keccak256 -> Keccak256 -> Bool

(/=) :: Keccak256 -> Keccak256 -> Bool

Ord Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

compare :: Keccak256 -> Keccak256 -> Ordering

(<) :: Keccak256 -> Keccak256 -> Bool

(<=) :: Keccak256 -> Keccak256 -> Bool

(>) :: Keccak256 -> Keccak256 -> Bool

(>=) :: Keccak256 -> Keccak256 -> Bool

max :: Keccak256 -> Keccak256 -> Keccak256

min :: Keccak256 -> Keccak256 -> Keccak256

Hash Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

initialize :: IO (Context Keccak256)

IncrementalHash Keccak256

Defined in Data.Hash.Internal.OpenSSL

Associated Types

type Context Keccak256

Methods

update :: Context Keccak256 -> Ptr Word8 -> Int -> IO ()

finalize :: Context Keccak256 -> IO Keccak256

ResetableHash Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

reset :: Context Keccak256 -> IO ()

OpenSslDigest Keccak256

Defined in Data.Hash.Internal.OpenSSL

Methods

algorithm :: Algorithm Keccak256

type Context Keccak256

Defined in Data.Hash.Internal.OpenSSL

type Context Keccak256

newtype Keccak512

Constructors

Keccak512 ShortByteString

Instances

IsString Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

fromString :: String -> Keccak512

Show Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

showsPrec :: Int -> Keccak512 -> ShowS

show :: Keccak512 -> String

showList :: [Keccak512] -> ShowS

Eq Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

(==) :: Keccak512 -> Keccak512 -> Bool

(/=) :: Keccak512 -> Keccak512 -> Bool

Ord Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

compare :: Keccak512 -> Keccak512 -> Ordering

(<) :: Keccak512 -> Keccak512 -> Bool

(<=) :: Keccak512 -> Keccak512 -> Bool

(>) :: Keccak512 -> Keccak512 -> Bool

(>=) :: Keccak512 -> Keccak512 -> Bool

max :: Keccak512 -> Keccak512 -> Keccak512

min :: Keccak512 -> Keccak512 -> Keccak512

Hash Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

initialize :: IO (Context Keccak512)

IncrementalHash Keccak512

Defined in Data.Hash.Internal.OpenSSL

Associated Types

type Context Keccak512

Methods

update :: Context Keccak512 -> Ptr Word8 -> Int -> IO ()

finalize :: Context Keccak512 -> IO Keccak512

ResetableHash Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

reset :: Context Keccak512 -> IO ()

OpenSslDigest Keccak512

Defined in Data.Hash.Internal.OpenSSL

Methods

algorithm :: Algorithm Keccak512

type Context Keccak512

Defined in Data.Hash.Internal.OpenSSL

type Context Keccak512

module Data.Hash.Class.Mutable

Unsafe finalize functions

finalizeKeccak256Ptr :: Ctx Keccak256 -> Ptr Word8 -> IO ()

Low-Level function that writes the final digest directly into the provided pointer. The pointer must point to at least 64 bytes of allocated memory. This is not checked and a violation of this condition may result in a segmentation fault.

finalizeKeccak512Ptr :: Ctx Keccak512 -> Ptr Word8 -> IO ()

Low-Level function that writes the final digest directly into the provided pointer. The pointer must point to at least 64 bytes of allocated memory. This is not checked and a violation of this condition may result in a segmentation fault.