Source file
src/crypto/tls/key_schedule_test.go
1
2
3
4
5 package tls
6
7 import (
8 "bytes"
9 "encoding/hex"
10 "hash"
11 "strings"
12 "testing"
13 "unicode"
14 )
15
16
17
18 func parseVector(v string) []byte {
19 v = strings.Map(func(c rune) rune {
20 if unicode.IsSpace(c) {
21 return -1
22 }
23 return c
24 }, v)
25 parts := strings.Split(v, ":")
26 v = parts[len(parts)-1]
27 res, err := hex.DecodeString(v)
28 if err != nil {
29 panic(err)
30 }
31 return res
32 }
33
34 func TestDeriveSecret(t *testing.T) {
35 chTranscript := cipherSuitesTLS13[0].hash.New()
36 chTranscript.Write(parseVector(`
37 payload (512 octets): 01 00 01 fc 03 03 1b c3 ce b6 bb e3 9c ff
38 93 83 55 b5 a5 0a db 6d b2 1b 7a 6a f6 49 d7 b4 bc 41 9d 78 76
39 48 7d 95 00 00 06 13 01 13 03 13 02 01 00 01 cd 00 00 00 0b 00
40 09 00 00 06 73 65 72 76 65 72 ff 01 00 01 00 00 0a 00 14 00 12
41 00 1d 00 17 00 18 00 19 01 00 01 01 01 02 01 03 01 04 00 33 00
42 26 00 24 00 1d 00 20 e4 ff b6 8a c0 5f 8d 96 c9 9d a2 66 98 34
43 6c 6b e1 64 82 ba dd da fe 05 1a 66 b4 f1 8d 66 8f 0b 00 2a 00
44 00 00 2b 00 03 02 03 04 00 0d 00 20 00 1e 04 03 05 03 06 03 02
45 03 08 04 08 05 08 06 04 01 05 01 06 01 02 01 04 02 05 02 06 02
46 02 02 00 2d 00 02 01 01 00 1c 00 02 40 01 00 15 00 57 00 00 00
47 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
48 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
49 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
51 00 29 00 dd 00 b8 00 b2 2c 03 5d 82 93 59 ee 5f f7 af 4e c9 00
52 00 00 00 26 2a 64 94 dc 48 6d 2c 8a 34 cb 33 fa 90 bf 1b 00 70
53 ad 3c 49 88 83 c9 36 7c 09 a2 be 78 5a bc 55 cd 22 60 97 a3 a9
54 82 11 72 83 f8 2a 03 a1 43 ef d3 ff 5d d3 6d 64 e8 61 be 7f d6
55 1d 28 27 db 27 9c ce 14 50 77 d4 54 a3 66 4d 4e 6d a4 d2 9e e0
56 37 25 a6 a4 da fc d0 fc 67 d2 ae a7 05 29 51 3e 3d a2 67 7f a5
57 90 6c 5b 3f 7d 8f 92 f2 28 bd a4 0d da 72 14 70 f9 fb f2 97 b5
58 ae a6 17 64 6f ac 5c 03 27 2e 97 07 27 c6 21 a7 91 41 ef 5f 7d
59 e6 50 5e 5b fb c3 88 e9 33 43 69 40 93 93 4a e4 d3 57 fa d6 aa
60 cb 00 21 20 3a dd 4f b2 d8 fd f8 22 a0 ca 3c f7 67 8e f5 e8 8d
61 ae 99 01 41 c5 92 4d 57 bb 6f a3 1b 9e 5f 9d`))
62
63 type args struct {
64 secret []byte
65 label string
66 transcript hash.Hash
67 }
68 tests := []struct {
69 name string
70 args args
71 want []byte
72 }{
73 {
74 `derive secret for handshake "tls13 derived"`,
75 args{
76 parseVector(`PRK (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c e2
77 10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a`),
78 "derived",
79 nil,
80 },
81 parseVector(`expanded (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba
82 b6 97 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba`),
83 },
84 {
85 `derive secret "tls13 c e traffic"`,
86 args{
87 parseVector(`PRK (32 octets): 9b 21 88 e9 b2 fc 6d 64 d7 1d c3 29 90 0e 20 bb
88 41 91 50 00 f6 78 aa 83 9c bb 79 7c b7 d8 33 2c`),
89 "c e traffic",
90 chTranscript,
91 },
92 parseVector(`expanded (32 octets): 3f bb e6 a6 0d eb 66 c3 0a 32 79 5a ba 0e
93 ff 7e aa 10 10 55 86 e7 be 5c 09 67 8d 63 b6 ca ab 62`),
94 },
95 }
96 for _, tt := range tests {
97 t.Run(tt.name, func(t *testing.T) {
98 c := cipherSuitesTLS13[0]
99 if got := c.deriveSecret(tt.args.secret, tt.args.label, tt.args.transcript); !bytes.Equal(got, tt.want) {
100 t.Errorf("cipherSuiteTLS13.deriveSecret() = % x, want % x", got, tt.want)
101 }
102 })
103 }
104 }
105
106 func TestTrafficKey(t *testing.T) {
107 trafficSecret := parseVector(
108 `PRK (32 octets): b6 7b 7d 69 0c c1 6c 4e 75 e5 42 13 cb 2d 37 b4
109 e9 c9 12 bc de d9 10 5d 42 be fd 59 d3 91 ad 38`)
110 wantKey := parseVector(
111 `key expanded (16 octets): 3f ce 51 60 09 c2 17 27 d0 f2 e4 e8 6e
112 e4 03 bc`)
113 wantIV := parseVector(
114 `iv expanded (12 octets): 5d 31 3e b2 67 12 76 ee 13 00 0b 30`)
115
116 c := cipherSuitesTLS13[0]
117 gotKey, gotIV := c.trafficKey(trafficSecret)
118 if !bytes.Equal(gotKey, wantKey) {
119 t.Errorf("cipherSuiteTLS13.trafficKey() gotKey = % x, want % x", gotKey, wantKey)
120 }
121 if !bytes.Equal(gotIV, wantIV) {
122 t.Errorf("cipherSuiteTLS13.trafficKey() gotIV = % x, want % x", gotIV, wantIV)
123 }
124 }
125
126 func TestExtract(t *testing.T) {
127 type args struct {
128 newSecret []byte
129 currentSecret []byte
130 }
131 tests := []struct {
132 name string
133 args args
134 want []byte
135 }{
136 {
137 `extract secret "early"`,
138 args{
139 nil,
140 nil,
141 },
142 parseVector(`secret (32 octets): 33 ad 0a 1c 60 7e c0 3b 09 e6 cd 98 93 68 0c
143 e2 10 ad f3 00 aa 1f 26 60 e1 b2 2e 10 f1 70 f9 2a`),
144 },
145 {
146 `extract secret "master"`,
147 args{
148 nil,
149 parseVector(`salt (32 octets): 43 de 77 e0 c7 77 13 85 9a 94 4d b9 db 25 90 b5
150 31 90 a6 5b 3e e2 e4 f1 2d d7 a0 bb 7c e2 54 b4`),
151 },
152 parseVector(`secret (32 octets): 18 df 06 84 3d 13 a0 8b f2 a4 49 84 4c 5f 8a
153 47 80 01 bc 4d 4c 62 79 84 d5 a4 1d a8 d0 40 29 19`),
154 },
155 {
156 `extract secret "handshake"`,
157 args{
158 parseVector(`IKM (32 octets): 8b d4 05 4f b5 5b 9d 63 fd fb ac f9 f0 4b 9f 0d
159 35 e6 d6 3f 53 75 63 ef d4 62 72 90 0f 89 49 2d`),
160 parseVector(`salt (32 octets): 6f 26 15 a1 08 c7 02 c5 67 8f 54 fc 9d ba b6 97
161 16 c0 76 18 9c 48 25 0c eb ea c3 57 6c 36 11 ba`),
162 },
163 parseVector(`secret (32 octets): 1d c8 26 e9 36 06 aa 6f dc 0a ad c1 2f 74 1b
164 01 04 6a a6 b9 9f 69 1e d2 21 a9 f0 ca 04 3f be ac`),
165 },
166 }
167 for _, tt := range tests {
168 t.Run(tt.name, func(t *testing.T) {
169 c := cipherSuitesTLS13[0]
170 if got := c.extract(tt.args.newSecret, tt.args.currentSecret); !bytes.Equal(got, tt.want) {
171 t.Errorf("cipherSuiteTLS13.extract() = % x, want % x", got, tt.want)
172 }
173 })
174 }
175 }
176
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