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

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

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 #

Compute the sha256 hash of a file.

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

Compute the sha256 hash of a general byte source.

HMAC computation using SHA256

hmacSha256 #

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 #

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) #

Compute the message authetication code for a generic byte source.