mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
164 lines
3.5 KiB
V
164 lines
3.5 KiB
V
// Copyright (c) 2019-2020 Alexander Medvednikov. All rights reserved.
|
|
// Use of this source code is governed by an MIT license
|
|
// that can be found in the LICENSE file.
|
|
// SHA512 block step.
|
|
// This is the generic version with no architecture optimizations.
|
|
// In its own file so that an architecture
|
|
// optimized verision can be substituted
|
|
module sha512
|
|
|
|
import math.bits
|
|
|
|
const (
|
|
_k = [0x428a2f98d728ae22,
|
|
0x7137449123ef65cd,
|
|
0xb5c0fbcfec4d3b2f,
|
|
0xe9b5dba58189dbbc,
|
|
0x3956c25bf348b538,
|
|
0x59f111f1b605d019,
|
|
0x923f82a4af194f9b,
|
|
0xab1c5ed5da6d8118,
|
|
0xd807aa98a3030242,
|
|
0x12835b0145706fbe,
|
|
0x243185be4ee4b28c,
|
|
0x550c7dc3d5ffb4e2,
|
|
0x72be5d74f27b896f,
|
|
0x80deb1fe3b1696b1,
|
|
0x9bdc06a725c71235,
|
|
0xc19bf174cf692694,
|
|
0xe49b69c19ef14ad2,
|
|
0xefbe4786384f25e3,
|
|
0x0fc19dc68b8cd5b5,
|
|
0x240ca1cc77ac9c65,
|
|
0x2de92c6f592b0275,
|
|
0x4a7484aa6ea6e483,
|
|
0x5cb0a9dcbd41fbd4,
|
|
0x76f988da831153b5,
|
|
0x983e5152ee66dfab,
|
|
0xa831c66d2db43210,
|
|
0xb00327c898fb213f,
|
|
0xbf597fc7beef0ee4,
|
|
0xc6e00bf33da88fc2,
|
|
0xd5a79147930aa725,
|
|
0x06ca6351e003826f,
|
|
0x142929670a0e6e70,
|
|
0x27b70a8546d22ffc,
|
|
0x2e1b21385c26c926,
|
|
0x4d2c6dfc5ac42aed,
|
|
0x53380d139d95b3df,
|
|
0x650a73548baf63de,
|
|
0x766a0abb3c77b2a8,
|
|
0x81c2c92e47edaee6,
|
|
0x92722c851482353b,
|
|
0xa2bfe8a14cf10364,
|
|
0xa81a664bbc423001,
|
|
0xc24b8b70d0f89791,
|
|
0xc76c51a30654be30,
|
|
0xd192e819d6ef5218,
|
|
0xd69906245565a910,
|
|
0xf40e35855771202a,
|
|
0x106aa07032bbd1b8,
|
|
0x19a4c116b8d2d0c8,
|
|
0x1e376c085141ab53,
|
|
0x2748774cdf8eeb99,
|
|
0x34b0bcb5e19b48a8,
|
|
0x391c0cb3c5c95a63,
|
|
0x4ed8aa4ae3418acb,
|
|
0x5b9cca4f7763e373,
|
|
0x682e6ff3d6b2b8a3,
|
|
0x748f82ee5defb2fc,
|
|
0x78a5636f43172f60,
|
|
0x84c87814a1f0ab72,
|
|
0x8cc702081a6439ec,
|
|
0x90befffa23631e28,
|
|
0xa4506cebde82bde9,
|
|
0xbef9a3f7b2c67915,
|
|
0xc67178f2e372532b,
|
|
0xca273eceea26619c,
|
|
0xd186b8c721c0c207,
|
|
0xeada7dd6cde0eb1e,
|
|
0xf57d4f7fee6ed178,
|
|
0x06f067aa72176fba,
|
|
0x0a637dc5a2c898a6,
|
|
0x113f9804bef90dae,
|
|
0x1b710b35131c471b,
|
|
0x28db77f523047d84,
|
|
0x32caab7b40c72493,
|
|
0x3c9ebe0a15c9bebc,
|
|
0x431d67c49c100d4c,
|
|
0x4cc5d4becb3e42b6,
|
|
0x597f299cfc657e2a,
|
|
0x5fcb6fab3ad6faec,
|
|
0x6c44198c4a475817,
|
|
]
|
|
)
|
|
|
|
fn block_generic(dig mut Digest, p_ []byte) {
|
|
mut p := p_
|
|
mut w := [u64(0)].repeat(80)
|
|
mut h0 := dig.h[0]
|
|
mut h1 := dig.h[1]
|
|
mut h2 := dig.h[2]
|
|
mut h3 := dig.h[3]
|
|
mut h4 := dig.h[4]
|
|
mut h5 := dig.h[5]
|
|
mut h6 := dig.h[6]
|
|
mut h7 := dig.h[7]
|
|
for p.len >= Chunk {
|
|
for i in 0..16 {
|
|
j := i * 8
|
|
w[i] = (u64(p[j])<<56) | (u64(p[j + 1])<<48) | (u64(p[j + 2])<<40) | (u64(p[j + 3])<<32) | (u64(p[j + 4])<<24) | (u64(p[j + 5])<<16) | (u64(p[j + 6])<<8) | u64(p[j + 7])
|
|
}
|
|
for i := 16; i < 80; i++ {
|
|
v1 := w[i - 2]
|
|
t1 := bits.rotate_left_64(v1, -19) ^ bits.rotate_left_64(v1, -61) ^ (v1>>6)
|
|
v2 := w[i - 15]
|
|
t2 := bits.rotate_left_64(v2, -1) ^ bits.rotate_left_64(v2, -8) ^ (v2>>7)
|
|
w[i] = t1 + w[i - 7] + t2 + w[i - 16]
|
|
}
|
|
mut a := h0
|
|
mut b := h1
|
|
mut c := h2
|
|
mut d := h3
|
|
mut e := h4
|
|
mut f := h5
|
|
mut g := h6
|
|
mut h := h7
|
|
for i in 0..80 {
|
|
t1 := h + (bits.rotate_left_64(e, -14) ^ bits.rotate_left_64(e, -18) ^ bits.rotate_left_64(e, -41)) + ((e & f) ^ (~e & g)) + _k[i] + w[i]
|
|
t2 := (bits.rotate_left_64(a, -28) ^ bits.rotate_left_64(a, -34) ^ bits.rotate_left_64(a, -39)) + ((a & b) ^ (a & c) ^ (b & c))
|
|
h = g
|
|
g = f
|
|
f = e
|
|
e = d + t1
|
|
d = c
|
|
c = b
|
|
b = a
|
|
a = t1 + t2
|
|
}
|
|
h0 += a
|
|
h1 += b
|
|
h2 += c
|
|
h3 += d
|
|
h4 += e
|
|
h5 += f
|
|
h6 += g
|
|
h7 += h
|
|
if Chunk >= p.len {
|
|
p = []
|
|
}
|
|
else {
|
|
p = p[Chunk..]
|
|
}
|
|
}
|
|
dig.h[0] = h0
|
|
dig.h[1] = h1
|
|
dig.h[2] = h2
|
|
dig.h[3] = h3
|
|
dig.h[4] = h4
|
|
dig.h[5] = h5
|
|
dig.h[6] = h6
|
|
dig.h[7] = h7
|
|
}
|
|
|