Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 1 | // Copyright 2014 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 | package hkdf |
| 5 | |
| 6 | import ( |
| 7 | "bytes" |
| 8 | "crypto/md5" |
| 9 | "crypto/sha1" |
| 10 | "crypto/sha256" |
| 11 | "crypto/sha512" |
| 12 | "hash" |
| 13 | "io" |
| 14 | "testing" |
| 15 | ) |
| 16 | |
| 17 | type hkdfTest struct { |
| 18 | hash func() hash.Hash |
| 19 | master []byte |
| 20 | salt []byte |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 21 | prk []byte |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 22 | info []byte |
| 23 | out []byte |
| 24 | } |
| 25 | |
| 26 | var hkdfTests = []hkdfTest{ |
| 27 | // Tests from RFC 5869 |
| 28 | { |
| 29 | sha256.New, |
| 30 | []byte{ |
| 31 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 32 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 33 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 34 | }, |
| 35 | []byte{ |
| 36 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 37 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, |
| 38 | }, |
| 39 | []byte{ |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 40 | 0x07, 0x77, 0x09, 0x36, 0x2c, 0x2e, 0x32, 0xdf, |
| 41 | 0x0d, 0xdc, 0x3f, 0x0d, 0xc4, 0x7b, 0xba, 0x63, |
| 42 | 0x90, 0xb6, 0xc7, 0x3b, 0xb5, 0x0f, 0x9c, 0x31, |
| 43 | 0x22, 0xec, 0x84, 0x4a, 0xd7, 0xc2, 0xb3, 0xe5, |
| 44 | }, |
| 45 | []byte{ |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 46 | 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
| 47 | 0xf8, 0xf9, |
| 48 | }, |
| 49 | []byte{ |
| 50 | 0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a, |
| 51 | 0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36, 0x2f, 0x2a, |
| 52 | 0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c, |
| 53 | 0x5d, 0xb0, 0x2d, 0x56, 0xec, 0xc4, 0xc5, 0xbf, |
| 54 | 0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18, |
| 55 | 0x58, 0x65, |
| 56 | }, |
| 57 | }, |
| 58 | { |
| 59 | sha256.New, |
| 60 | []byte{ |
| 61 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 62 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 63 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 64 | 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
| 65 | 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, |
| 66 | 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, |
| 67 | 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, |
| 68 | 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, |
| 69 | 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, |
| 70 | 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, |
| 71 | }, |
| 72 | []byte{ |
| 73 | 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 74 | 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, |
| 75 | 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, |
| 76 | 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, |
| 77 | 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, |
| 78 | 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, |
| 79 | 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, |
| 80 | 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, |
| 81 | 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
| 82 | 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, |
| 83 | }, |
| 84 | []byte{ |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 85 | 0x06, 0xa6, 0xb8, 0x8c, 0x58, 0x53, 0x36, 0x1a, |
| 86 | 0x06, 0x10, 0x4c, 0x9c, 0xeb, 0x35, 0xb4, 0x5c, |
| 87 | 0xef, 0x76, 0x00, 0x14, 0x90, 0x46, 0x71, 0x01, |
| 88 | 0x4a, 0x19, 0x3f, 0x40, 0xc1, 0x5f, 0xc2, 0x44, |
| 89 | }, |
| 90 | []byte{ |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 91 | 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, |
| 92 | 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, |
| 93 | 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, |
| 94 | 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, |
| 95 | 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, |
| 96 | 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, |
| 97 | 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, |
| 98 | 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, |
| 99 | 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
| 100 | 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, |
| 101 | }, |
| 102 | []byte{ |
| 103 | 0xb1, 0x1e, 0x39, 0x8d, 0xc8, 0x03, 0x27, 0xa1, |
| 104 | 0xc8, 0xe7, 0xf7, 0x8c, 0x59, 0x6a, 0x49, 0x34, |
| 105 | 0x4f, 0x01, 0x2e, 0xda, 0x2d, 0x4e, 0xfa, 0xd8, |
| 106 | 0xa0, 0x50, 0xcc, 0x4c, 0x19, 0xaf, 0xa9, 0x7c, |
| 107 | 0x59, 0x04, 0x5a, 0x99, 0xca, 0xc7, 0x82, 0x72, |
| 108 | 0x71, 0xcb, 0x41, 0xc6, 0x5e, 0x59, 0x0e, 0x09, |
| 109 | 0xda, 0x32, 0x75, 0x60, 0x0c, 0x2f, 0x09, 0xb8, |
| 110 | 0x36, 0x77, 0x93, 0xa9, 0xac, 0xa3, 0xdb, 0x71, |
| 111 | 0xcc, 0x30, 0xc5, 0x81, 0x79, 0xec, 0x3e, 0x87, |
| 112 | 0xc1, 0x4c, 0x01, 0xd5, 0xc1, 0xf3, 0x43, 0x4f, |
| 113 | 0x1d, 0x87, |
| 114 | }, |
| 115 | }, |
| 116 | { |
| 117 | sha256.New, |
| 118 | []byte{ |
| 119 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 120 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 121 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 122 | }, |
| 123 | []byte{}, |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 124 | []byte{ |
| 125 | 0x19, 0xef, 0x24, 0xa3, 0x2c, 0x71, 0x7b, 0x16, |
| 126 | 0x7f, 0x33, 0xa9, 0x1d, 0x6f, 0x64, 0x8b, 0xdf, |
| 127 | 0x96, 0x59, 0x67, 0x76, 0xaf, 0xdb, 0x63, 0x77, |
| 128 | 0xac, 0x43, 0x4c, 0x1c, 0x29, 0x3c, 0xcb, 0x04, |
| 129 | }, |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 130 | []byte{}, |
| 131 | []byte{ |
| 132 | 0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f, |
| 133 | 0x71, 0x5f, 0x80, 0x2a, 0x06, 0x3c, 0x5a, 0x31, |
| 134 | 0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e, |
| 135 | 0xc3, 0x45, 0x4e, 0x5f, 0x3c, 0x73, 0x8d, 0x2d, |
| 136 | 0x9d, 0x20, 0x13, 0x95, 0xfa, 0xa4, 0xb6, 0x1a, |
| 137 | 0x96, 0xc8, |
| 138 | }, |
| 139 | }, |
| 140 | { |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 141 | sha256.New, |
| 142 | []byte{ |
| 143 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 144 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 145 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 146 | }, |
| 147 | nil, |
| 148 | []byte{ |
| 149 | 0x19, 0xef, 0x24, 0xa3, 0x2c, 0x71, 0x7b, 0x16, |
| 150 | 0x7f, 0x33, 0xa9, 0x1d, 0x6f, 0x64, 0x8b, 0xdf, |
| 151 | 0x96, 0x59, 0x67, 0x76, 0xaf, 0xdb, 0x63, 0x77, |
| 152 | 0xac, 0x43, 0x4c, 0x1c, 0x29, 0x3c, 0xcb, 0x04, |
| 153 | }, |
| 154 | nil, |
| 155 | []byte{ |
| 156 | 0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f, |
| 157 | 0x71, 0x5f, 0x80, 0x2a, 0x06, 0x3c, 0x5a, 0x31, |
| 158 | 0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e, |
| 159 | 0xc3, 0x45, 0x4e, 0x5f, 0x3c, 0x73, 0x8d, 0x2d, |
| 160 | 0x9d, 0x20, 0x13, 0x95, 0xfa, 0xa4, 0xb6, 0x1a, |
| 161 | 0x96, 0xc8, |
| 162 | }, |
| 163 | }, |
| 164 | { |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 165 | sha1.New, |
| 166 | []byte{ |
| 167 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 168 | 0x0b, 0x0b, 0x0b, |
| 169 | }, |
| 170 | []byte{ |
| 171 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 172 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, |
| 173 | }, |
| 174 | []byte{ |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 175 | 0x9b, 0x6c, 0x18, 0xc4, 0x32, 0xa7, 0xbf, 0x8f, |
| 176 | 0x0e, 0x71, 0xc8, 0xeb, 0x88, 0xf4, 0xb3, 0x0b, |
| 177 | 0xaa, 0x2b, 0xa2, 0x43, |
| 178 | }, |
| 179 | []byte{ |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 180 | 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
| 181 | 0xf8, 0xf9, |
| 182 | }, |
| 183 | []byte{ |
| 184 | 0x08, 0x5a, 0x01, 0xea, 0x1b, 0x10, 0xf3, 0x69, |
| 185 | 0x33, 0x06, 0x8b, 0x56, 0xef, 0xa5, 0xad, 0x81, |
| 186 | 0xa4, 0xf1, 0x4b, 0x82, 0x2f, 0x5b, 0x09, 0x15, |
| 187 | 0x68, 0xa9, 0xcd, 0xd4, 0xf1, 0x55, 0xfd, 0xa2, |
| 188 | 0xc2, 0x2e, 0x42, 0x24, 0x78, 0xd3, 0x05, 0xf3, |
| 189 | 0xf8, 0x96, |
| 190 | }, |
| 191 | }, |
| 192 | { |
| 193 | sha1.New, |
| 194 | []byte{ |
| 195 | 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, |
| 196 | 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, |
| 197 | 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, |
| 198 | 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, |
| 199 | 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, |
| 200 | 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, |
| 201 | 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, |
| 202 | 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, |
| 203 | 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, |
| 204 | 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, |
| 205 | }, |
| 206 | []byte{ |
| 207 | 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, |
| 208 | 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, |
| 209 | 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, |
| 210 | 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, |
| 211 | 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, |
| 212 | 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, |
| 213 | 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, |
| 214 | 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, |
| 215 | 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, |
| 216 | 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, |
| 217 | }, |
| 218 | []byte{ |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 219 | 0x8a, 0xda, 0xe0, 0x9a, 0x2a, 0x30, 0x70, 0x59, |
| 220 | 0x47, 0x8d, 0x30, 0x9b, 0x26, 0xc4, 0x11, 0x5a, |
| 221 | 0x22, 0x4c, 0xfa, 0xf6, |
| 222 | }, |
| 223 | []byte{ |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 224 | 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, |
| 225 | 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, |
| 226 | 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, |
| 227 | 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, |
| 228 | 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, |
| 229 | 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, |
| 230 | 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, |
| 231 | 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, |
| 232 | 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
| 233 | 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, |
| 234 | }, |
| 235 | []byte{ |
| 236 | 0x0b, 0xd7, 0x70, 0xa7, 0x4d, 0x11, 0x60, 0xf7, |
| 237 | 0xc9, 0xf1, 0x2c, 0xd5, 0x91, 0x2a, 0x06, 0xeb, |
| 238 | 0xff, 0x6a, 0xdc, 0xae, 0x89, 0x9d, 0x92, 0x19, |
| 239 | 0x1f, 0xe4, 0x30, 0x56, 0x73, 0xba, 0x2f, 0xfe, |
| 240 | 0x8f, 0xa3, 0xf1, 0xa4, 0xe5, 0xad, 0x79, 0xf3, |
| 241 | 0xf3, 0x34, 0xb3, 0xb2, 0x02, 0xb2, 0x17, 0x3c, |
| 242 | 0x48, 0x6e, 0xa3, 0x7c, 0xe3, 0xd3, 0x97, 0xed, |
| 243 | 0x03, 0x4c, 0x7f, 0x9d, 0xfe, 0xb1, 0x5c, 0x5e, |
| 244 | 0x92, 0x73, 0x36, 0xd0, 0x44, 0x1f, 0x4c, 0x43, |
| 245 | 0x00, 0xe2, 0xcf, 0xf0, 0xd0, 0x90, 0x0b, 0x52, |
| 246 | 0xd3, 0xb4, |
| 247 | }, |
| 248 | }, |
| 249 | { |
| 250 | sha1.New, |
| 251 | []byte{ |
| 252 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 253 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 254 | 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, |
| 255 | }, |
| 256 | []byte{}, |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 257 | []byte{ |
| 258 | 0xda, 0x8c, 0x8a, 0x73, 0xc7, 0xfa, 0x77, 0x28, |
| 259 | 0x8e, 0xc6, 0xf5, 0xe7, 0xc2, 0x97, 0x78, 0x6a, |
| 260 | 0xa0, 0xd3, 0x2d, 0x01, |
| 261 | }, |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 262 | []byte{}, |
| 263 | []byte{ |
| 264 | 0x0a, 0xc1, 0xaf, 0x70, 0x02, 0xb3, 0xd7, 0x61, |
| 265 | 0xd1, 0xe5, 0x52, 0x98, 0xda, 0x9d, 0x05, 0x06, |
| 266 | 0xb9, 0xae, 0x52, 0x05, 0x72, 0x20, 0xa3, 0x06, |
| 267 | 0xe0, 0x7b, 0x6b, 0x87, 0xe8, 0xdf, 0x21, 0xd0, |
| 268 | 0xea, 0x00, 0x03, 0x3d, 0xe0, 0x39, 0x84, 0xd3, |
| 269 | 0x49, 0x18, |
| 270 | }, |
| 271 | }, |
| 272 | { |
| 273 | sha1.New, |
| 274 | []byte{ |
| 275 | 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, |
| 276 | 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, |
| 277 | 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, |
| 278 | }, |
| 279 | nil, |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 280 | []byte{ |
| 281 | 0x2a, 0xdc, 0xca, 0xda, 0x18, 0x77, 0x9e, 0x7c, |
| 282 | 0x20, 0x77, 0xad, 0x2e, 0xb1, 0x9d, 0x3f, 0x3e, |
| 283 | 0x73, 0x13, 0x85, 0xdd, |
| 284 | }, |
| 285 | nil, |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 286 | []byte{ |
| 287 | 0x2c, 0x91, 0x11, 0x72, 0x04, 0xd7, 0x45, 0xf3, |
| 288 | 0x50, 0x0d, 0x63, 0x6a, 0x62, 0xf6, 0x4f, 0x0a, |
| 289 | 0xb3, 0xba, 0xe5, 0x48, 0xaa, 0x53, 0xd4, 0x23, |
| 290 | 0xb0, 0xd1, 0xf2, 0x7e, 0xbb, 0xa6, 0xf5, 0xe5, |
| 291 | 0x67, 0x3a, 0x08, 0x1d, 0x70, 0xcc, 0xe7, 0xac, |
| 292 | 0xfc, 0x48, |
| 293 | }, |
| 294 | }, |
| 295 | } |
| 296 | |
| 297 | func TestHKDF(t *testing.T) { |
| 298 | for i, tt := range hkdfTests { |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 299 | prk := Extract(tt.hash, tt.master, tt.salt) |
| 300 | if !bytes.Equal(prk, tt.prk) { |
| 301 | t.Errorf("test %d: incorrect PRK: have %v, need %v.", i, prk, tt.prk) |
| 302 | } |
| 303 | |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 304 | hkdf := New(tt.hash, tt.master, tt.salt, tt.info) |
| 305 | out := make([]byte, len(tt.out)) |
| 306 | |
| 307 | n, err := io.ReadFull(hkdf, out) |
| 308 | if n != len(tt.out) || err != nil { |
| 309 | t.Errorf("test %d: not enough output bytes: %d.", i, n) |
| 310 | } |
| 311 | |
| 312 | if !bytes.Equal(out, tt.out) { |
| 313 | t.Errorf("test %d: incorrect output: have %v, need %v.", i, out, tt.out) |
| 314 | } |
Filippo Valsorda | e84da03 | 2018-10-24 09:26:30 -0400 | [diff] [blame] | 315 | |
| 316 | hkdf = Expand(tt.hash, prk, tt.info) |
| 317 | |
| 318 | n, err = io.ReadFull(hkdf, out) |
| 319 | if n != len(tt.out) || err != nil { |
| 320 | t.Errorf("test %d: not enough output bytes from Expand: %d.", i, n) |
| 321 | } |
| 322 | |
| 323 | if !bytes.Equal(out, tt.out) { |
| 324 | t.Errorf("test %d: incorrect output from Expand: have %v, need %v.", i, out, tt.out) |
| 325 | } |
Péter Szilágyi | f82d563 | 2014-02-12 14:08:25 -0500 | [diff] [blame] | 326 | } |
| 327 | } |
| 328 | |
| 329 | func TestHKDFMultiRead(t *testing.T) { |
| 330 | for i, tt := range hkdfTests { |
| 331 | hkdf := New(tt.hash, tt.master, tt.salt, tt.info) |
| 332 | out := make([]byte, len(tt.out)) |
| 333 | |
| 334 | for b := 0; b < len(tt.out); b++ { |
| 335 | n, err := io.ReadFull(hkdf, out[b:b+1]) |
| 336 | if n != 1 || err != nil { |
| 337 | t.Errorf("test %d.%d: not enough output bytes: have %d, need %d .", i, b, n, len(tt.out)) |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | if !bytes.Equal(out, tt.out) { |
| 342 | t.Errorf("test %d: incorrect output: have %v, need %v.", i, out, tt.out) |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | func TestHKDFLimit(t *testing.T) { |
| 348 | hash := sha1.New |
| 349 | master := []byte{0x00, 0x01, 0x02, 0x03} |
| 350 | info := []byte{} |
| 351 | |
| 352 | hkdf := New(hash, master, nil, info) |
| 353 | limit := hash().Size() * 255 |
| 354 | out := make([]byte, limit) |
| 355 | |
| 356 | // The maximum output bytes should be extractable |
| 357 | n, err := io.ReadFull(hkdf, out) |
| 358 | if n != limit || err != nil { |
| 359 | t.Errorf("not enough output bytes: %d, %v.", n, err) |
| 360 | } |
| 361 | |
| 362 | // Reading one more should fail |
| 363 | n, err = io.ReadFull(hkdf, make([]byte, 1)) |
| 364 | if n > 0 || err == nil { |
| 365 | t.Errorf("key expansion overflowed: n = %d, err = %v", n, err) |
| 366 | } |
| 367 | } |
| 368 | |
| 369 | func Benchmark16ByteMD5Single(b *testing.B) { |
| 370 | benchmarkHKDFSingle(md5.New, 16, b) |
| 371 | } |
| 372 | |
| 373 | func Benchmark20ByteSHA1Single(b *testing.B) { |
| 374 | benchmarkHKDFSingle(sha1.New, 20, b) |
| 375 | } |
| 376 | |
| 377 | func Benchmark32ByteSHA256Single(b *testing.B) { |
| 378 | benchmarkHKDFSingle(sha256.New, 32, b) |
| 379 | } |
| 380 | |
| 381 | func Benchmark64ByteSHA512Single(b *testing.B) { |
| 382 | benchmarkHKDFSingle(sha512.New, 64, b) |
| 383 | } |
| 384 | |
| 385 | func Benchmark8ByteMD5Stream(b *testing.B) { |
| 386 | benchmarkHKDFStream(md5.New, 8, b) |
| 387 | } |
| 388 | |
| 389 | func Benchmark16ByteMD5Stream(b *testing.B) { |
| 390 | benchmarkHKDFStream(md5.New, 16, b) |
| 391 | } |
| 392 | |
| 393 | func Benchmark8ByteSHA1Stream(b *testing.B) { |
| 394 | benchmarkHKDFStream(sha1.New, 8, b) |
| 395 | } |
| 396 | |
| 397 | func Benchmark20ByteSHA1Stream(b *testing.B) { |
| 398 | benchmarkHKDFStream(sha1.New, 20, b) |
| 399 | } |
| 400 | |
| 401 | func Benchmark8ByteSHA256Stream(b *testing.B) { |
| 402 | benchmarkHKDFStream(sha256.New, 8, b) |
| 403 | } |
| 404 | |
| 405 | func Benchmark32ByteSHA256Stream(b *testing.B) { |
| 406 | benchmarkHKDFStream(sha256.New, 32, b) |
| 407 | } |
| 408 | |
| 409 | func Benchmark8ByteSHA512Stream(b *testing.B) { |
| 410 | benchmarkHKDFStream(sha512.New, 8, b) |
| 411 | } |
| 412 | |
| 413 | func Benchmark64ByteSHA512Stream(b *testing.B) { |
| 414 | benchmarkHKDFStream(sha512.New, 64, b) |
| 415 | } |
| 416 | |
| 417 | func benchmarkHKDFSingle(hasher func() hash.Hash, block int, b *testing.B) { |
| 418 | master := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07} |
| 419 | salt := []byte{0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17} |
| 420 | info := []byte{0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27} |
| 421 | out := make([]byte, block) |
| 422 | |
| 423 | b.SetBytes(int64(block)) |
| 424 | b.ResetTimer() |
| 425 | |
| 426 | for i := 0; i < b.N; i++ { |
| 427 | hkdf := New(hasher, master, salt, info) |
| 428 | io.ReadFull(hkdf, out) |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | func benchmarkHKDFStream(hasher func() hash.Hash, block int, b *testing.B) { |
| 433 | master := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07} |
| 434 | salt := []byte{0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17} |
| 435 | info := []byte{0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27} |
| 436 | out := make([]byte, block) |
| 437 | |
| 438 | b.SetBytes(int64(block)) |
| 439 | b.ResetTimer() |
| 440 | |
| 441 | hkdf := New(hasher, master, salt, info) |
| 442 | for i := 0; i < b.N; i++ { |
| 443 | _, err := io.ReadFull(hkdf, out) |
| 444 | if err != nil { |
| 445 | hkdf = New(hasher, master, salt, info) |
| 446 | i-- |
| 447 | } |
| 448 | } |
| 449 | } |