| Portability | unknown |
|---|---|
| Stability | stable |
| Maintainer | Vincent Hanquez <vincent@snarc.org> |
| Safe Haskell | None |
Crypto.Random.AESCtr
Description
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
- data AESRNG
- make :: ByteString -> Maybe AESRNG
- makeSystem :: IO AESRNG
- genRandomBytes :: CPRG g => g -> Int -> (ByteString, g)
Documentation
make :: ByteString -> Maybe 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.
Initialize a new AES RNG using the system entropy.
Arguments
| :: CPRG g | |
| => g | CPRG to use |
| -> Int | number of bytes to return |
| -> (ByteString, g) |
Generate bytes using the cprg in parameter.
arbitrary limit the number of bytes that can be generated in one go to 10mb.