mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-24 20:37:17 +00:00
289b30715d
This commit converts the dependency management from Godeps to the vendor folder, also switching the tool from godep to trash. Since the upstream tool lacks a few features proposed via a few PRs, until those PRs are merged in (if), use github.com/karalabe/trash. You can update dependencies via trash --update. All dependencies have been updated to their latest version. Parts of the build system are reworked to drop old notions of Godeps and invocation of the go vet command so that it doesn't run against the vendor folder, as that will just blow up during vetting. The conversion drops OpenCL (and hence GPU mining support) from ethash and our codebase. The short reasoning is that there's noone to maintain and having opencl libs in our deps messes up builds as go install ./... tries to build them, failing with unsatisfied link errors for the C OpenCL deps. golang.org/x/net/context is not vendored in. We expect it to be fetched by the user (i.e. using go get). To keep ci.go builds reproducible the package is "vendored" in build/_vendor.
162 lines
4.2 KiB
Go
162 lines
4.2 KiB
Go
// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// RIPEMD-160 block step.
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// In its own file so that a faster assembly or C version
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// can be substituted easily.
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package ripemd160
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// work buffer indices and roll amounts for one line
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var _n = [80]uint{
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
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3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
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1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
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4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13,
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}
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var _r = [80]uint{
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11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
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7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
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11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
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11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
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9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6,
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}
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// same for the other parallel one
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var n_ = [80]uint{
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5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
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6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
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15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
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8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
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12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11,
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}
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var r_ = [80]uint{
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8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
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9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
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9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
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15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
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8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11,
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}
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func _Block(md *digest, p []byte) int {
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n := 0
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var x [16]uint32
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var alpha, beta uint32
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for len(p) >= BlockSize {
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a, b, c, d, e := md.s[0], md.s[1], md.s[2], md.s[3], md.s[4]
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aa, bb, cc, dd, ee := a, b, c, d, e
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j := 0
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for i := 0; i < 16; i++ {
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x[i] = uint32(p[j]) | uint32(p[j+1])<<8 | uint32(p[j+2])<<16 | uint32(p[j+3])<<24
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j += 4
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}
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// round 1
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i := 0
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for i < 16 {
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alpha = a + (b ^ c ^ d) + x[_n[i]]
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s := _r[i]
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alpha = (alpha<<s | alpha>>(32-s)) + e
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beta = c<<10 | c>>22
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a, b, c, d, e = e, alpha, b, beta, d
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// parallel line
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alpha = aa + (bb ^ (cc | ^dd)) + x[n_[i]] + 0x50a28be6
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s = r_[i]
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alpha = (alpha<<s | alpha>>(32-s)) + ee
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beta = cc<<10 | cc>>22
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aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
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i++
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}
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// round 2
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for i < 32 {
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alpha = a + (b&c | ^b&d) + x[_n[i]] + 0x5a827999
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s := _r[i]
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alpha = (alpha<<s | alpha>>(32-s)) + e
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beta = c<<10 | c>>22
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a, b, c, d, e = e, alpha, b, beta, d
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// parallel line
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alpha = aa + (bb&dd | cc&^dd) + x[n_[i]] + 0x5c4dd124
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s = r_[i]
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alpha = (alpha<<s | alpha>>(32-s)) + ee
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beta = cc<<10 | cc>>22
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aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
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i++
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}
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// round 3
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for i < 48 {
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alpha = a + (b | ^c ^ d) + x[_n[i]] + 0x6ed9eba1
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s := _r[i]
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alpha = (alpha<<s | alpha>>(32-s)) + e
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beta = c<<10 | c>>22
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a, b, c, d, e = e, alpha, b, beta, d
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// parallel line
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alpha = aa + (bb | ^cc ^ dd) + x[n_[i]] + 0x6d703ef3
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s = r_[i]
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alpha = (alpha<<s | alpha>>(32-s)) + ee
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beta = cc<<10 | cc>>22
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aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
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i++
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}
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// round 4
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for i < 64 {
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alpha = a + (b&d | c&^d) + x[_n[i]] + 0x8f1bbcdc
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s := _r[i]
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alpha = (alpha<<s | alpha>>(32-s)) + e
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beta = c<<10 | c>>22
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a, b, c, d, e = e, alpha, b, beta, d
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// parallel line
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alpha = aa + (bb&cc | ^bb&dd) + x[n_[i]] + 0x7a6d76e9
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s = r_[i]
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alpha = (alpha<<s | alpha>>(32-s)) + ee
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beta = cc<<10 | cc>>22
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aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
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i++
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}
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// round 5
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for i < 80 {
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alpha = a + (b ^ (c | ^d)) + x[_n[i]] + 0xa953fd4e
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s := _r[i]
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alpha = (alpha<<s | alpha>>(32-s)) + e
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beta = c<<10 | c>>22
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a, b, c, d, e = e, alpha, b, beta, d
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// parallel line
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alpha = aa + (bb ^ cc ^ dd) + x[n_[i]]
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s = r_[i]
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alpha = (alpha<<s | alpha>>(32-s)) + ee
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beta = cc<<10 | cc>>22
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aa, bb, cc, dd, ee = ee, alpha, bb, beta, dd
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i++
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}
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// combine results
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dd += c + md.s[1]
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md.s[1] = md.s[2] + d + ee
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md.s[2] = md.s[3] + e + aa
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md.s[3] = md.s[4] + a + bb
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md.s[4] = md.s[0] + b + cc
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md.s[0] = dd
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p = p[BlockSize:]
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n += BlockSize
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}
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return n
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}
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