25 lines
719 B
Go
25 lines
719 B
Go
|
// Copyright 2015 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 arm,!gccgo,!appengine
|
||
|
|
|
||
|
|
package poly1305
|
||
|
|
|
||
|
|
// This function is implemented in poly1305_arm.s
|
||
|
|
|
||
|
|
//go:noescape
|
||
|
|
|
||
|
|
func poly1305_auth_armv6(out *[16]byte, m *byte, mlen uint32, 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_auth_armv6(out, mPtr, uint32(len(m)), key)
|
||
|
|
}
|