cprng-aes-0.2.5: Crypto Pseudo Random Number Generator using AES in counter mode.

MaintainerVincent Hanquez <vincent@snarc.org>
Safe HaskellNone



this CPRNG is an AES based counter system.

the internal size of fields are: 16 bytes IV, 16 bytes counter, 32 bytes key

each block are generated the following way: aes (IV xor counter) -> 16 bytes output



make :: ByteString -> Either GenError AESRNGSource

make an AES RNG from a bytestring seed. the bytestring need to be at least 64 bytes. if the bytestring is longer, the extra bytes will be ignored and will not take part in the initialization.

use makeSystem to not have to deal with the generator seed.

makeSystem :: IO AESRNGSource

Initialize a new AES RNG using the system entropy.