Crypto-4.2.0: Collects together existing Haskell cryptographic functions into a package





Utilities for coding and decoding.


Types and Constants

type Octet = Word8Source

The basic type for encoding and decoding.

msb :: IntSource

The most significant bit of an Octet.

Octet Conversion Functions

fromTwosComp :: Integral a => [Octet] -> aSource

Convert from twos complement.

toOctets :: (Integral a, Integral b) => a -> b -> [Octet]Source

Take a number a convert it to base n as a list of octets.

fromOctets :: (Integral a, Integral b) => a -> [Octet] -> bSource

Take a list of octets (a number expressed in base n) and convert it to a number.

listToOctets :: (Bits a, Integral a) => [a] -> [Octet]Source

Converts a list of numbers into a list of octets. The resultant list has nulls trimmed from the end to make this the dual of listFromOctets (except when the original octet list ended with nulls; see trimNulls).

i2osp :: Integral a => Int -> a -> [Octet]Source

Take the length of the required number of octets and convert the number to base 256 padding it out to the required length. If the required length is less than the number of octets of the converted number then return the converted number. NB this is different from the standard but mimics how replicate behaves.