github.com/icodeface/tls@v0.0.0-20230910023335-34df9250cd12/key_schedule_test.go (about) 1 // Copyright 2018 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 5 package tls 6 7 import ( 8 "bytes" 9 "encoding/hex" 10 "hash" 11 "strings" 12 "testing" 13 "unicode" 14 ) 15 16 // This file contains tests derived from draft-ietf-tls-tls13-vectors-07. 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 }