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fixslice32.rs

Contains an unbounded block loopSource references XOR syntax

SHA-256d5bfb6e23ab26b35d1559a13ac2f65b7604a56b2ed63b77f3eda841f02148390

Evidence

English function-word token "the" lines 1–5

1:3… ! Fixsliced implementations of AES-128, AES-192 and AES-256 (32-bit)
2//! adapted from the C implementation
3//!
4//! All implementations are fully bitsliced and do not rely on any
5//! Loo …

imports cipher::consts::U16 lines 14–29

14:11… ally licensed MIT. Relicensed as Apache 2.0+MIT with permission.
15
16#![allow(clippy::unreadable_literal)]
17
18use crate::Block;
19use cipher::{
20    consts::{U16, U24, U32},
21    generic_array::GenericArray,
22};
23use core::convert::TryInto;
24
25/// AES block batch size for this implementation
26pub(crate) const FIXSLICE_BLOCKS: usize = 2;
27
28/// AES-128 round keys
29pub(crate)  …

Contains an unbounded block loop lines 97–105

97:30… ..], &key[8..]);
98
99    let mut rcon = 0;
100    let mut rk_off = 8;
101
⋯4 lines

Source references XOR syntax lines 126–130

18…  0x03030303 & (ui >> 6);
          tmp[i] =
              ti ^ (0xfcfcfcfc & (ti << 2)) ^ (0xf0f0f0f0 & (ti << 4)) ^ (0xc0c0c0c0 & (ti << 6));
      }
      rkeys[rk_off..(rk_off + 8)].co …

XOR-mutates an indexed byte lines 958–967

958:18… (state: &mut [u32]) {
959    debug_assert_eq!(state.len(), 8);
960    state[0] ^= 0xffffffff;
961    state[1] ^= 0xffffffff;
962    state[5] ^= 0xffffffff;
963    state[6] ^= 0xffffffff;
964}
965
966/// Computation of the MixColumns transformation in the fixsliced representation, with different
967/// rotations used a …