Crypto-4.2.1: Collects together existing Haskell cryptographic functions into a package Source code Contents Index

Data.HMAC

Contents Function Types Data Types

Description

Implements HMAC (hashed message authentication code) as defined in FIPS 198 http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf.

Synopsis

hmac :: HashMethod -> [Octet] -> [Octet] -> [Octet] hmac_sha1 :: [Octet] -> [Octet] -> [Octet] hmac_md5 :: [Octet] -> [Octet] -> [Octet] data HashMethod = HashMethod { digest :: [Octet] -> [Octet] input_blocksize :: Int }

Function Types

hmac Source

:: HashMethod Hash function and associated block size -> [Octet] Secret key -> [Octet] Message text -> [Octet] Resulting HMAC value Generalized function for creating HMACs on a specified hash function.

hmac_sha1 Source

:: [Octet] Secret key -> [Octet] Message text -> [Octet] Resulting HMAC-SHA1 value Compute an HMAC using SHA-1 as the underlying hash function.

hmac_md5 Source

:: [Octet] Secret key -> [Octet] Message text -> [Octet] Resulting HMAC-MD5 value Compute an HMAC using MD5 as the underlying hash function.

Data Types

data HashMethod Source

HMAC works over any hash function, which is represented by HashMethod. A hash function and input block size must be specified. Constructors HashMethod digest :: [Octet] -> [Octet] An arbitrary hash function input_blocksize :: Int Bit size of an input block to the hash function

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