raaz-0.2.0: The raaz cryptographic library.

Safe HaskellNone
LanguageHaskell2010

Raaz.Hash.Sha256

Contents

Description

This module exposes combinators to compute the SHA256 hash and the associated HMAC for some common types.

Synopsis

The SHA256 cryptographic hash

data SHA256 Source #

The Sha256 hash value.

sha256 :: PureByteSource src => src -> SHA256 Source #

Compute the sha256 hash of an instance of PureByteSource. Use this for computing the sha256 hash of a strict or lazy byte string.

sha256File :: FilePath -> IO SHA256 Source #

Compute the sha256 hash of a file.

sha256Source :: ByteSource src => src -> IO SHA256 Source #

Compute the sha256 hash of a general byte source.

HMAC computation using SHA256

hmacSha256 Source #

Arguments

:: PureByteSource src 
=> Key (HMAC SHA256)

Key to use

-> src

pure source whose hmac is to be computed

-> HMAC SHA256 

Compute the message authentication code using hmac-sha256.

hmacSha256File Source #

Arguments

:: Key (HMAC SHA256)

Key to use

-> FilePath

File whose hmac is to be computed

-> IO (HMAC SHA256) 

Compute the message authentication code for a file.

hmacSha256Source :: ByteSource src => Key (HMAC SHA256) -> src -> IO (HMAC SHA256) Source #

Compute the message authetication code for a generic byte source.