Crypto.NewHope.RNG

Pseudorandom number generation for NewHope.

This module contains the public interface. Implementation definitions are in the Crypto.NewHope.Internal.RNG module.

Documentation

data Context

State for pseudorandom number generation

Instances

Eq Context

Defined in Crypto.NewHope.Internal.RNG

Methods

(==) :: Context -> Context -> Bool

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

NFData Context

We need this instance so that we can deepseq this data while doing performance tests.

Defined in Crypto.NewHope.Internal.RNG

Methods

rnf :: Context -> ()

class RandomSeedable a

Strings or ByteStrings may be used for source data.

Minimal complete definition

makeRandomSeed

Instances

RandomSeedable String

Defined in Crypto.NewHope.Internal.RNG

Methods

makeRandomSeed :: String -> RandomSeed

RandomSeedable ByteString

Defined in Crypto.NewHope.Internal.RNG

Methods

makeRandomSeed :: ByteString -> RandomSeed

makeRandomSeed :: RandomSeedable a => a -> RandomSeed

Uses external entropy (precisely 48 bytes) to create a RandomSeed, used for initializing the pseudorandom number generator

randomBytesInit

Arguments

:: RandomSeed

External entropy to seed the generator

-> Maybe RandomSeed

Optional additional entropy to include

-> Integer

Security strength: unused by this implementation

-> Context

The resulting PRNG state

Creates a Context as state for the pseudorandom number generator, required for key exchange operations

randomBytes :: Context -> Int -> (ByteString, Context)

Generate pseudorandom bytes from the Context.