Function aes_frast::aes_core::block_dec_k256
[−]
[src]
pub fn block_dec_k256(input: &[u8], output: &mut [u8], keys: &[u32])
Decrypt a block with scheduled keys (from 256bit key).
[Attention!] The first and second parameters must possess 16 elements each in the slice, and the third 60.
Examples
use aes_frast::aes_core::{setkey_dec_k256, block_dec_k256}; let input: [u8; 16] = [ 0x8E, 0xA2, 0xB7, 0xCA, 0x51, 0x67, 0x45, 0xBF, 0xEA, 0xFC, 0x49, 0x90, 0x4B, 0x49, 0x60, 0x89 ]; let origin_key: [u8; 32] = [ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F ]; let mut scheduled_keys: [u32; 60] = [0; 60]; let mut output: [u8; 16] = [0; 16]; setkey_dec_k256(&origin_key, &mut scheduled_keys); block_dec_k256(&input, &mut output, &scheduled_keys); let expected: [u8; 16] = [ 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF ]; for i in 0..16 { assert_eq!(output[i], expected[i]); }