License | BSD-style |
---|---|
Maintainer | Vincent Hanquez <vincent@snarc.org> |
Stability | stable |
Portability | good |
Safe Haskell | None |
Language | Haskell2010 |
Synopsis
- initialize :: (ByteArrayAccess key, ByteArrayAccess nonce) => Int -> key -> nonce -> State
- combine :: ByteArray ba => State -> ba -> (ba, State)
- generate :: ByteArray ba => State -> Int -> (ba, State)
- data State
- initializeSimple :: ByteArrayAccess seed => seed -> StateSimple
- generateSimple :: ByteArray ba => StateSimple -> Int -> (ba, StateSimple)
- data StateSimple
Documentation
:: (ByteArrayAccess key, ByteArrayAccess nonce) | |
=> Int | number of rounds (8,12,20) |
-> key | the key (128 or 256 bits) |
-> nonce | the nonce (64 or 96 bits) |
-> State | the initial ChaCha state |
Initialize a new ChaCha context with the number of rounds, the key and the nonce associated.
:: ByteArray ba | |
=> State | the current ChaCha state |
-> ba | the source to xor with the generator |
-> (ba, State) |
Combine the chacha output and an arbitrary message with a xor, and return the combined output and the new state.
Generate a number of bytes from the ChaCha output directly
ChaCha context
Simple interface for DRG purpose
:: ByteArrayAccess seed | |
=> seed | a 40 bytes long seed |
-> StateSimple |
Initialize simple ChaCha State
The seed need to be at least 40 bytes long
generateSimple :: ByteArray ba => StateSimple -> Int -> (ba, StateSimple) Source #
similar to generate
but assume certains values
data StateSimple Source #
ChaCha context for DRG purpose (see Crypto.Random.ChaChaDRG)
Instances
NFData StateSimple Source # | |
Defined in Crypto.Cipher.ChaCha rnf :: StateSimple -> () # |