ChaCha.start

Initialize the ChaCha20 stream cipher.

struct ChaCha(uint rounds)

@safe nothrow @nogc

void

start

(

in ubyte[] key

in ubyte[] iv

)

if (

rounds % 2 == 0

)

Parameters

forEncryption bool: Not used, because encryption and decryptioin are the same.
key ubyte[]: A secret key of 32 bytes length (256 bit).
iv ubyte[]: A nonce of 12 bytes length (96 bit).
initial_counter uint: The initial value of the counter. The default is 1. (Set this to 2 to skip the first block.)