Andreas Auernhammer
b286ef4198
This CL implements BLAKE2X, a extensible-output functions (XOF) on top of BLAKE2s. BLAKE2x is described in https://blake2.net/blake2x.pdf Change-Id: I20838811e270f4767b8bd5e239a1fe1fb994fe1c Reviewed-on: https://go-review.googlesource.com/38054 Run-TryBot: Adam Langley <agl@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Adam Langley <agl@golang.org>
41 lines
971 B
Go
41 lines
971 B
Go
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build amd64,!gccgo,!appengine
|
|
|
|
package blake2s
|
|
|
|
var (
|
|
useSSE4 = supportSSE4()
|
|
useSSSE3 = supportSSSE3()
|
|
useSSE2 = true // Always available on amd64
|
|
)
|
|
|
|
//go:noescape
|
|
func supportSSSE3() bool
|
|
|
|
//go:noescape
|
|
func supportSSE4() bool
|
|
|
|
//go:noescape
|
|
func hashBlocksSSE2(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
|
|
|
|
//go:noescape
|
|
func hashBlocksSSSE3(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
|
|
|
|
//go:noescape
|
|
func hashBlocksSSE4(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte)
|
|
|
|
func hashBlocks(h *[8]uint32, c *[2]uint32, flag uint32, blocks []byte) {
|
|
if useSSE4 {
|
|
hashBlocksSSE4(h, c, flag, blocks)
|
|
} else if useSSSE3 {
|
|
hashBlocksSSSE3(h, c, flag, blocks)
|
|
} else if useSSE2 {
|
|
hashBlocksSSE2(h, c, flag, blocks)
|
|
} else {
|
|
hashBlocksGeneric(h, c, flag, blocks)
|
|
}
|
|
}
|