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https://github.com/minio/minio.git
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7f99cc9768
This change adds the HighwayHash256 PRF as bitrot protection / detection algorithm. Since HighwayHash256 requires a 256 bit we generate a random key from the first 100 decimals of π - See nothing-up-my-sleeve-numbers. This key is fixed forever and tied to the HighwayHash256 bitrot algorithm. Fixes #5358
69 lines
1.3 KiB
Go
69 lines
1.3 KiB
Go
// Copyright (c) 2017 Minio Inc. All rights reserved.
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// Use of this source code is governed by a license that can be
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// found in the LICENSE file.
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// +build go1.8
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// +build amd64 !gccgo !appengine !nacl
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package highwayhash
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var (
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useSSE4 = supportsSSE4()
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useAVX2 = supportsAVX2()
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useNEON = false
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)
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//go:noescape
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func supportsSSE4() bool
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//go:noescape
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func supportsAVX2() bool
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//go:noescape
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func initializeSSE4(state *[16]uint64, key []byte)
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//go:noescape
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func initializeAVX2(state *[16]uint64, key []byte)
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//go:noescape
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func updateSSE4(state *[16]uint64, msg []byte)
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//go:noescape
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func updateAVX2(state *[16]uint64, msg []byte)
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//go:noescape
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func finalizeSSE4(out []byte, state *[16]uint64)
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//go:noescape
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func finalizeAVX2(out []byte, state *[16]uint64)
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func initialize(state *[16]uint64, key []byte) {
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if useAVX2 {
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initializeAVX2(state, key)
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} else if useSSE4 {
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initializeSSE4(state, key)
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} else {
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initializeGeneric(state, key)
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}
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}
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func update(state *[16]uint64, msg []byte) {
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if useAVX2 {
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updateAVX2(state, msg)
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} else if useSSE4 {
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updateSSE4(state, msg)
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} else {
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updateGeneric(state, msg)
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}
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}
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func finalize(out []byte, state *[16]uint64) {
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if useAVX2 {
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finalizeAVX2(out, state)
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} else if useSSE4 {
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finalizeSSE4(out, state)
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} else {
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finalizeGeneric(out, state)
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}
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}
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