/
block.rs
335 lines (293 loc) · 17.4 KB
/
block.rs
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use core::{convert::TryInto, mem::swap};
use digest::generic_array::typenum::U64;
use digest::generic_array::GenericArray;
pub const HALF_DIGEST_BUF_LEN: usize = 5;
pub const DIGEST_BUF_LEN: usize = 10;
pub const WORK_BUF_LEN: usize = 16;
pub const H0: [u32; DIGEST_BUF_LEN] = [
0x6745_2301,
0xefcd_ab89,
0x98ba_dcfe,
0x1032_5476,
0xc3d2_e1f0,
0x7654_3210,
0xfedc_ba98,
0x89ab_cdef,
0x0123_4567,
0x3c2d_1e0f,
];
type Block = GenericArray<u8, U64>;
macro_rules! round(
($a:expr, $b:expr, $c:expr, $d:expr, $e:expr,
$x:expr, $bits:expr, $add:expr, $round:expr) => ({
$a = $a.wrapping_add($round).wrapping_add($x).wrapping_add($add);
$a = $a.rotate_left($bits).wrapping_add($e);
$c = $c.rotate_left(10);
});
);
#[inline(always)]
fn swap_idx(bb: &mut [u32; HALF_DIGEST_BUF_LEN], bbb: &mut [u32; HALF_DIGEST_BUF_LEN], idx: usize) {
swap(&mut bb[idx], &mut bbb[idx]);
}
macro_rules! process_block(
($h:ident, $data:expr,
$( round1: h_ordering $f0:expr, $f1:expr, $f2:expr, $f3:expr, $f4:expr;
data_index $data_index1:expr; roll_shift $bits1:expr )*;
$( round2: h_ordering $g0:expr, $g1:expr, $g2:expr, $g3:expr, $g4:expr;
data_index $data_index2:expr; roll_shift $bits2:expr )*;
$( round3: h_ordering $h0:expr, $h1:expr, $h2:expr, $h3:expr, $h4:expr;
data_index $data_index3:expr; roll_shift $bits3:expr )*;
$( round4: h_ordering $i0:expr, $i1:expr, $i2:expr, $i3:expr, $i4:expr;
data_index $data_index4:expr; roll_shift $bits4:expr )*;
$( round5: h_ordering $j0:expr, $j1:expr, $j2:expr, $j3:expr, $j4:expr;
data_index $data_index5:expr; roll_shift $bits5:expr )*;
$( par_round1: h_ordering $pj0:expr, $pj1:expr, $pj2:expr, $pj3:expr, $pj4:expr;
data_index $pdata_index1:expr; roll_shift $pbits1:expr )*;
$( par_round2: h_ordering $pi0:expr, $pi1:expr, $pi2:expr, $pi3:expr, $pi4:expr;
data_index $pdata_index2:expr; roll_shift $pbits2:expr )*;
$( par_round3: h_ordering $ph0:expr, $ph1:expr, $ph2:expr, $ph3:expr, $ph4:expr;
data_index $pdata_index3:expr; roll_shift $pbits3:expr )*;
$( par_round4: h_ordering $pg0:expr, $pg1:expr, $pg2:expr, $pg3:expr, $pg4:expr;
data_index $pdata_index4:expr; roll_shift $pbits4:expr )*;
$( par_round5: h_ordering $pf0:expr, $pf1:expr, $pf2:expr, $pf3:expr, $pf4:expr;
data_index $pdata_index5:expr; roll_shift $pbits5:expr )*;
) => ({
let mut bb = [0u32; HALF_DIGEST_BUF_LEN];
bb.copy_from_slice(&$h[..HALF_DIGEST_BUF_LEN]);
let mut bbb = [0u32; HALF_DIGEST_BUF_LEN];
bbb.copy_from_slice(&$h[HALF_DIGEST_BUF_LEN..]);
// Round 1
$( round!(bb[$f0], bb[$f1], bb[$f2], bb[$f3], bb[$f4],
$data[$data_index1], $bits1, 0x0000_0000,
bb[$f1] ^ bb[$f2] ^ bb[$f3]); )*
// Parallel Round 1
$( round!(bbb[$pj0], bbb[$pj1], bbb[$pj2], bbb[$pj3], bbb[$pj4],
$data[$pdata_index1], $pbits1, 0x50a2_8be6,
bbb[$pj1] ^ (bbb[$pj2] | !bbb[$pj3])); )*
swap_idx(&mut bb, &mut bbb, 0);
// Round 2
$( round!(bb[$g0], bb[$g1], bb[$g2], bb[$g3], bb[$g4],
$data[$data_index2], $bits2, 0x5a82_7999,
(bb[$g1] & bb[$g2]) | (!bb[$g1] & bb[$g3])); )*
// Parallel Round 2
$( round!(bbb[$pi0], bbb[$pi1], bbb[$pi2], bbb[$pi3], bbb[$pi4],
$data[$pdata_index2], $pbits2, 0x5c4d_d124,
(bbb[$pi1] & bbb[$pi3]) | (bbb[$pi2] & !bbb[$pi3])); )*
swap_idx(&mut bb, &mut bbb, 1);
// Round 3
$( round!(bb[$h0], bb[$h1], bb[$h2], bb[$h3], bb[$h4],
$data[$data_index3], $bits3, 0x6ed9_eba1,
(bb[$h1] | !bb[$h2]) ^ bb[$h3]); )*
// Parallel Round 3
$( round!(bbb[$ph0], bbb[$ph1], bbb[$ph2], bbb[$ph3], bbb[$ph4],
$data[$pdata_index3], $pbits3, 0x6d70_3ef3,
(bbb[$ph1] | !bbb[$ph2]) ^ bbb[$ph3]); )*
swap_idx(&mut bb, &mut bbb, 2);
// Round 4
$( round!(bb[$i0], bb[$i1], bb[$i2], bb[$i3], bb[$i4],
$data[$data_index4], $bits4, 0x8f1b_bcdc,
(bb[$i1] & bb[$i3]) | (bb[$i2] & !bb[$i3])); )*
// Parallel Round 4
$( round!(bbb[$pg0], bbb[$pg1], bbb[$pg2], bbb[$pg3], bbb[$pg4],
$data[$pdata_index4], $pbits4, 0x7a6d_76e9,
(bbb[$pg1] & bbb[$pg2]) | (!bbb[$pg1] & bbb[$pg3])); )*
swap_idx(&mut bb, &mut bbb, 3);
// Round 5
$( round!(bb[$j0], bb[$j1], bb[$j2], bb[$j3], bb[$j4],
$data[$data_index5], $bits5, 0xa953_fd4e,
bb[$j1] ^ (bb[$j2] | !bb[$j3])); )*
// Parallel Round 5
$( round!(bbb[$pf0], bbb[$pf1], bbb[$pf2], bbb[$pf3], bbb[$pf4],
$data[$pdata_index5], $pbits5, 0x0000_0000,
bbb[$pf1] ^ bbb[$pf2] ^ bbb[$pf3]); )*
swap_idx(&mut bb, &mut bbb, 4);
$h[0] = $h[0].wrapping_add(bb[0]);
$h[1] = $h[1].wrapping_add(bb[1]);
$h[2] = $h[2].wrapping_add(bb[2]);
$h[3] = $h[3].wrapping_add(bb[3]);
$h[4] = $h[4].wrapping_add(bb[4]);
$h[5] = $h[5].wrapping_add(bbb[0]);
$h[6] = $h[6].wrapping_add(bbb[1]);
$h[7] = $h[7].wrapping_add(bbb[2]);
$h[8] = $h[8].wrapping_add(bbb[3]);
$h[9] = $h[9].wrapping_add(bbb[4]);
});
);
pub fn process_msg_block(h: &mut [u32; DIGEST_BUF_LEN], data: &Block) {
let mut w = [0u32; WORK_BUF_LEN];
for (o, chunk) in w.iter_mut().zip(data.chunks_exact(4)) {
*o = u32::from_le_bytes(chunk.try_into().unwrap());
}
process_block!(h, w[..],
// Round 1
round1: h_ordering 0, 1, 2, 3, 4; data_index 0; roll_shift 11
round1: h_ordering 4, 0, 1, 2, 3; data_index 1; roll_shift 14
round1: h_ordering 3, 4, 0, 1, 2; data_index 2; roll_shift 15
round1: h_ordering 2, 3, 4, 0, 1; data_index 3; roll_shift 12
round1: h_ordering 1, 2, 3, 4, 0; data_index 4; roll_shift 5
round1: h_ordering 0, 1, 2, 3, 4; data_index 5; roll_shift 8
round1: h_ordering 4, 0, 1, 2, 3; data_index 6; roll_shift 7
round1: h_ordering 3, 4, 0, 1, 2; data_index 7; roll_shift 9
round1: h_ordering 2, 3, 4, 0, 1; data_index 8; roll_shift 11
round1: h_ordering 1, 2, 3, 4, 0; data_index 9; roll_shift 13
round1: h_ordering 0, 1, 2, 3, 4; data_index 10; roll_shift 14
round1: h_ordering 4, 0, 1, 2, 3; data_index 11; roll_shift 15
round1: h_ordering 3, 4, 0, 1, 2; data_index 12; roll_shift 6
round1: h_ordering 2, 3, 4, 0, 1; data_index 13; roll_shift 7
round1: h_ordering 1, 2, 3, 4, 0; data_index 14; roll_shift 9
round1: h_ordering 0, 1, 2, 3, 4; data_index 15; roll_shift 8;
// Round 2
round2: h_ordering 4, 0, 1, 2, 3; data_index 7; roll_shift 7
round2: h_ordering 3, 4, 0, 1, 2; data_index 4; roll_shift 6
round2: h_ordering 2, 3, 4, 0, 1; data_index 13; roll_shift 8
round2: h_ordering 1, 2, 3, 4, 0; data_index 1; roll_shift 13
round2: h_ordering 0, 1, 2, 3, 4; data_index 10; roll_shift 11
round2: h_ordering 4, 0, 1, 2, 3; data_index 6; roll_shift 9
round2: h_ordering 3, 4, 0, 1, 2; data_index 15; roll_shift 7
round2: h_ordering 2, 3, 4, 0, 1; data_index 3; roll_shift 15
round2: h_ordering 1, 2, 3, 4, 0; data_index 12; roll_shift 7
round2: h_ordering 0, 1, 2, 3, 4; data_index 0; roll_shift 12
round2: h_ordering 4, 0, 1, 2, 3; data_index 9; roll_shift 15
round2: h_ordering 3, 4, 0, 1, 2; data_index 5; roll_shift 9
round2: h_ordering 2, 3, 4, 0, 1; data_index 2; roll_shift 11
round2: h_ordering 1, 2, 3, 4, 0; data_index 14; roll_shift 7
round2: h_ordering 0, 1, 2, 3, 4; data_index 11; roll_shift 13
round2: h_ordering 4, 0, 1, 2, 3; data_index 8; roll_shift 12;
// Round 3
round3: h_ordering 3, 4, 0, 1, 2; data_index 3; roll_shift 11
round3: h_ordering 2, 3, 4, 0, 1; data_index 10; roll_shift 13
round3: h_ordering 1, 2, 3, 4, 0; data_index 14; roll_shift 6
round3: h_ordering 0, 1, 2, 3, 4; data_index 4; roll_shift 7
round3: h_ordering 4, 0, 1, 2, 3; data_index 9; roll_shift 14
round3: h_ordering 3, 4, 0, 1, 2; data_index 15; roll_shift 9
round3: h_ordering 2, 3, 4, 0, 1; data_index 8; roll_shift 13
round3: h_ordering 1, 2, 3, 4, 0; data_index 1; roll_shift 15
round3: h_ordering 0, 1, 2, 3, 4; data_index 2; roll_shift 14
round3: h_ordering 4, 0, 1, 2, 3; data_index 7; roll_shift 8
round3: h_ordering 3, 4, 0, 1, 2; data_index 0; roll_shift 13
round3: h_ordering 2, 3, 4, 0, 1; data_index 6; roll_shift 6
round3: h_ordering 1, 2, 3, 4, 0; data_index 13; roll_shift 5
round3: h_ordering 0, 1, 2, 3, 4; data_index 11; roll_shift 12
round3: h_ordering 4, 0, 1, 2, 3; data_index 5; roll_shift 7
round3: h_ordering 3, 4, 0, 1, 2; data_index 12; roll_shift 5;
// Round 4
round4: h_ordering 2, 3, 4, 0, 1; data_index 1; roll_shift 11
round4: h_ordering 1, 2, 3, 4, 0; data_index 9; roll_shift 12
round4: h_ordering 0, 1, 2, 3, 4; data_index 11; roll_shift 14
round4: h_ordering 4, 0, 1, 2, 3; data_index 10; roll_shift 15
round4: h_ordering 3, 4, 0, 1, 2; data_index 0; roll_shift 14
round4: h_ordering 2, 3, 4, 0, 1; data_index 8; roll_shift 15
round4: h_ordering 1, 2, 3, 4, 0; data_index 12; roll_shift 9
round4: h_ordering 0, 1, 2, 3, 4; data_index 4; roll_shift 8
round4: h_ordering 4, 0, 1, 2, 3; data_index 13; roll_shift 9
round4: h_ordering 3, 4, 0, 1, 2; data_index 3; roll_shift 14
round4: h_ordering 2, 3, 4, 0, 1; data_index 7; roll_shift 5
round4: h_ordering 1, 2, 3, 4, 0; data_index 15; roll_shift 6
round4: h_ordering 0, 1, 2, 3, 4; data_index 14; roll_shift 8
round4: h_ordering 4, 0, 1, 2, 3; data_index 5; roll_shift 6
round4: h_ordering 3, 4, 0, 1, 2; data_index 6; roll_shift 5
round4: h_ordering 2, 3, 4, 0, 1; data_index 2; roll_shift 12;
// Round 5
round5: h_ordering 1, 2, 3, 4, 0; data_index 4; roll_shift 9
round5: h_ordering 0, 1, 2, 3, 4; data_index 0; roll_shift 15
round5: h_ordering 4, 0, 1, 2, 3; data_index 5; roll_shift 5
round5: h_ordering 3, 4, 0, 1, 2; data_index 9; roll_shift 11
round5: h_ordering 2, 3, 4, 0, 1; data_index 7; roll_shift 6
round5: h_ordering 1, 2, 3, 4, 0; data_index 12; roll_shift 8
round5: h_ordering 0, 1, 2, 3, 4; data_index 2; roll_shift 13
round5: h_ordering 4, 0, 1, 2, 3; data_index 10; roll_shift 12
round5: h_ordering 3, 4, 0, 1, 2; data_index 14; roll_shift 5
round5: h_ordering 2, 3, 4, 0, 1; data_index 1; roll_shift 12
round5: h_ordering 1, 2, 3, 4, 0; data_index 3; roll_shift 13
round5: h_ordering 0, 1, 2, 3, 4; data_index 8; roll_shift 14
round5: h_ordering 4, 0, 1, 2, 3; data_index 11; roll_shift 11
round5: h_ordering 3, 4, 0, 1, 2; data_index 6; roll_shift 8
round5: h_ordering 2, 3, 4, 0, 1; data_index 15; roll_shift 5
round5: h_ordering 1, 2, 3, 4, 0; data_index 13; roll_shift 6;
// Parallel Round 1
par_round1: h_ordering 0, 1, 2, 3, 4; data_index 5; roll_shift 8
par_round1: h_ordering 4, 0, 1, 2, 3; data_index 14; roll_shift 9
par_round1: h_ordering 3, 4, 0, 1, 2; data_index 7; roll_shift 9
par_round1: h_ordering 2, 3, 4, 0, 1; data_index 0; roll_shift 11
par_round1: h_ordering 1, 2, 3, 4, 0; data_index 9; roll_shift 13
par_round1: h_ordering 0, 1, 2, 3, 4; data_index 2; roll_shift 15
par_round1: h_ordering 4, 0, 1, 2, 3; data_index 11; roll_shift 15
par_round1: h_ordering 3, 4, 0, 1, 2; data_index 4; roll_shift 5
par_round1: h_ordering 2, 3, 4, 0, 1; data_index 13; roll_shift 7
par_round1: h_ordering 1, 2, 3, 4, 0; data_index 6; roll_shift 7
par_round1: h_ordering 0, 1, 2, 3, 4; data_index 15; roll_shift 8
par_round1: h_ordering 4, 0, 1, 2, 3; data_index 8; roll_shift 11
par_round1: h_ordering 3, 4, 0, 1, 2; data_index 1; roll_shift 14
par_round1: h_ordering 2, 3, 4, 0, 1; data_index 10; roll_shift 14
par_round1: h_ordering 1, 2, 3, 4, 0; data_index 3; roll_shift 12
par_round1: h_ordering 0, 1, 2, 3, 4; data_index 12; roll_shift 6;
// Parallel Round 2
par_round2: h_ordering 4, 0, 1, 2, 3; data_index 6; roll_shift 9
par_round2: h_ordering 3, 4, 0, 1, 2; data_index 11; roll_shift 13
par_round2: h_ordering 2, 3, 4, 0, 1; data_index 3; roll_shift 15
par_round2: h_ordering 1, 2, 3, 4, 0; data_index 7; roll_shift 7
par_round2: h_ordering 0, 1, 2, 3, 4; data_index 0; roll_shift 12
par_round2: h_ordering 4, 0, 1, 2, 3; data_index 13; roll_shift 8
par_round2: h_ordering 3, 4, 0, 1, 2; data_index 5; roll_shift 9
par_round2: h_ordering 2, 3, 4, 0, 1; data_index 10; roll_shift 11
par_round2: h_ordering 1, 2, 3, 4, 0; data_index 14; roll_shift 7
par_round2: h_ordering 0, 1, 2, 3, 4; data_index 15; roll_shift 7
par_round2: h_ordering 4, 0, 1, 2, 3; data_index 8; roll_shift 12
par_round2: h_ordering 3, 4, 0, 1, 2; data_index 12; roll_shift 7
par_round2: h_ordering 2, 3, 4, 0, 1; data_index 4; roll_shift 6
par_round2: h_ordering 1, 2, 3, 4, 0; data_index 9; roll_shift 15
par_round2: h_ordering 0, 1, 2, 3, 4; data_index 1; roll_shift 13
par_round2: h_ordering 4, 0, 1, 2, 3; data_index 2; roll_shift 11;
// Parallel Round 3
par_round3: h_ordering 3, 4, 0, 1, 2; data_index 15; roll_shift 9
par_round3: h_ordering 2, 3, 4, 0, 1; data_index 5; roll_shift 7
par_round3: h_ordering 1, 2, 3, 4, 0; data_index 1; roll_shift 15
par_round3: h_ordering 0, 1, 2, 3, 4; data_index 3; roll_shift 11
par_round3: h_ordering 4, 0, 1, 2, 3; data_index 7; roll_shift 8
par_round3: h_ordering 3, 4, 0, 1, 2; data_index 14; roll_shift 6
par_round3: h_ordering 2, 3, 4, 0, 1; data_index 6; roll_shift 6
par_round3: h_ordering 1, 2, 3, 4, 0; data_index 9; roll_shift 14
par_round3: h_ordering 0, 1, 2, 3, 4; data_index 11; roll_shift 12
par_round3: h_ordering 4, 0, 1, 2, 3; data_index 8; roll_shift 13
par_round3: h_ordering 3, 4, 0, 1, 2; data_index 12; roll_shift 5
par_round3: h_ordering 2, 3, 4, 0, 1; data_index 2; roll_shift 14
par_round3: h_ordering 1, 2, 3, 4, 0; data_index 10; roll_shift 13
par_round3: h_ordering 0, 1, 2, 3, 4; data_index 0; roll_shift 13
par_round3: h_ordering 4, 0, 1, 2, 3; data_index 4; roll_shift 7
par_round3: h_ordering 3, 4, 0, 1, 2; data_index 13; roll_shift 5;
// Parallel Round 4
par_round4: h_ordering 2, 3, 4, 0, 1; data_index 8; roll_shift 15
par_round4: h_ordering 1, 2, 3, 4, 0; data_index 6; roll_shift 5
par_round4: h_ordering 0, 1, 2, 3, 4; data_index 4; roll_shift 8
par_round4: h_ordering 4, 0, 1, 2, 3; data_index 1; roll_shift 11
par_round4: h_ordering 3, 4, 0, 1, 2; data_index 3; roll_shift 14
par_round4: h_ordering 2, 3, 4, 0, 1; data_index 11; roll_shift 14
par_round4: h_ordering 1, 2, 3, 4, 0; data_index 15; roll_shift 6
par_round4: h_ordering 0, 1, 2, 3, 4; data_index 0; roll_shift 14
par_round4: h_ordering 4, 0, 1, 2, 3; data_index 5; roll_shift 6
par_round4: h_ordering 3, 4, 0, 1, 2; data_index 12; roll_shift 9
par_round4: h_ordering 2, 3, 4, 0, 1; data_index 2; roll_shift 12
par_round4: h_ordering 1, 2, 3, 4, 0; data_index 13; roll_shift 9
par_round4: h_ordering 0, 1, 2, 3, 4; data_index 9; roll_shift 12
par_round4: h_ordering 4, 0, 1, 2, 3; data_index 7; roll_shift 5
par_round4: h_ordering 3, 4, 0, 1, 2; data_index 10; roll_shift 15
par_round4: h_ordering 2, 3, 4, 0, 1; data_index 14; roll_shift 8;
// Parallel Round 5
par_round5: h_ordering 1, 2, 3, 4, 0; data_index 12; roll_shift 8
par_round5: h_ordering 0, 1, 2, 3, 4; data_index 15; roll_shift 5
par_round5: h_ordering 4, 0, 1, 2, 3; data_index 10; roll_shift 12
par_round5: h_ordering 3, 4, 0, 1, 2; data_index 4; roll_shift 9
par_round5: h_ordering 2, 3, 4, 0, 1; data_index 1; roll_shift 12
par_round5: h_ordering 1, 2, 3, 4, 0; data_index 5; roll_shift 5
par_round5: h_ordering 0, 1, 2, 3, 4; data_index 8; roll_shift 14
par_round5: h_ordering 4, 0, 1, 2, 3; data_index 7; roll_shift 6
par_round5: h_ordering 3, 4, 0, 1, 2; data_index 6; roll_shift 8
par_round5: h_ordering 2, 3, 4, 0, 1; data_index 2; roll_shift 13
par_round5: h_ordering 1, 2, 3, 4, 0; data_index 13; roll_shift 6
par_round5: h_ordering 0, 1, 2, 3, 4; data_index 14; roll_shift 5
par_round5: h_ordering 4, 0, 1, 2, 3; data_index 0; roll_shift 15
par_round5: h_ordering 3, 4, 0, 1, 2; data_index 3; roll_shift 13
par_round5: h_ordering 2, 3, 4, 0, 1; data_index 9; roll_shift 11
par_round5: h_ordering 1, 2, 3, 4, 0; data_index 11; roll_shift 11;
);
}