GCM.start

init cipher, H, Y0, E0

struct GCM(T)

nothrow @nogc

void

start

(

in ubyte[] key

in ubyte[] iv

uint macSize = 128

)

if (

is(T == void) ||

(

isBlockCipher!T &&

T.blockSize == 16

)

Parameters

forEncryption bool: encrypt (true) or decrypt (false)
iv ubyte[]: Initialization vector. Length of 96 bits is most efficient.
key ubyte[]: encryption key
macSize uint: length of authentication tag in bits. 32 <= macSize <= 128. Only multiples of 8 supported.