Brad Fitzpatrick
5f31782cfb
Fixes golang/go#17424 Change-Id: I49d6e475c173da6a31542931d555ab87cc45a1c6 Reviewed-on: https://go-review.googlesource.com/30971 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Adam Langley <agl@golang.org>
23 lines
700 B
Go
23 lines
700 B
Go
// Copyright 2012 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,go1.7
|
|
|
|
package poly1305
|
|
|
|
// This function is implemented in sum_amd64.s
|
|
//go:noescape
|
|
func poly1305(out *[16]byte, m *byte, mlen uint64, key *[32]byte)
|
|
|
|
// Sum generates an authenticator for m using a one-time key and puts the
|
|
// 16-byte result into out. Authenticating two different messages with the same
|
|
// key allows an attacker to forge messages at will.
|
|
func Sum(out *[16]byte, m []byte, key *[32]byte) {
|
|
var mPtr *byte
|
|
if len(m) > 0 {
|
|
mPtr = &m[0]
|
|
}
|
|
poly1305(out, mPtr, uint64(len(m)), key)
|
|
}
|