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Diffstat (limited to 'vendor/golang.org/x/crypto/ssh/mac.go')
-rw-r--r--vendor/golang.org/x/crypto/ssh/mac.go61
1 files changed, 0 insertions, 61 deletions
diff --git a/vendor/golang.org/x/crypto/ssh/mac.go b/vendor/golang.org/x/crypto/ssh/mac.go
deleted file mode 100644
index c07a062..0000000
--- a/vendor/golang.org/x/crypto/ssh/mac.go
+++ /dev/null
@@ -1,61 +0,0 @@
1// Copyright 2012 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package ssh
6
7// Message authentication support
8
9import (
10 "crypto/hmac"
11 "crypto/sha1"
12 "crypto/sha256"
13 "hash"
14)
15
16type macMode struct {
17 keySize int
18 etm bool
19 new func(key []byte) hash.Hash
20}
21
22// truncatingMAC wraps around a hash.Hash and truncates the output digest to
23// a given size.
24type truncatingMAC struct {
25 length int
26 hmac hash.Hash
27}
28
29func (t truncatingMAC) Write(data []byte) (int, error) {
30 return t.hmac.Write(data)
31}
32
33func (t truncatingMAC) Sum(in []byte) []byte {
34 out := t.hmac.Sum(in)
35 return out[:len(in)+t.length]
36}
37
38func (t truncatingMAC) Reset() {
39 t.hmac.Reset()
40}
41
42func (t truncatingMAC) Size() int {
43 return t.length
44}
45
46func (t truncatingMAC) BlockSize() int { return t.hmac.BlockSize() }
47
48var macModes = map[string]*macMode{
49 "hmac-sha2-256-etm@openssh.com": {32, true, func(key []byte) hash.Hash {
50 return hmac.New(sha256.New, key)
51 }},
52 "hmac-sha2-256": {32, false, func(key []byte) hash.Hash {
53 return hmac.New(sha256.New, key)
54 }},
55 "hmac-sha1": {20, false, func(key []byte) hash.Hash {
56 return hmac.New(sha1.New, key)
57 }},
58 "hmac-sha1-96": {20, false, func(key []byte) hash.Hash {
59 return truncatingMAC{12, hmac.New(sha1.New, key)}
60 }},
61}