Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Crypto hash algorithms |
| 3 | * |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 4 | * Copyright (c) 2024 Seagate Technology LLC and/or its Affiliates |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 5 | * Copyright (c) 2015 Red Hat, Inc. |
| 6 | * |
| 7 | * This library is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
Thomas Huth | b7cbb87 | 2019-02-13 16:54:59 +0100 | [diff] [blame] | 10 | * version 2.1 of the License, or (at your option) any later version. |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 11 | * |
| 12 | * This library is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 19 | * |
| 20 | */ |
| 21 | |
Peter Maydell | 42f7a44 | 2016-01-26 18:16:55 +0000 | [diff] [blame] | 22 | #include "qemu/osdep.h" |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 23 | #include "qapi/error.h" |
| 24 | #include "qapi-types-crypto.h" |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 25 | #include "crypto/hash.h" |
Longpeng(Mike) | aa8efad | 2017-07-14 14:03:59 -0400 | [diff] [blame] | 26 | #include "hashpriv.h" |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 27 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 28 | static size_t qcrypto_hash_alg_size[QCRYPTO_HASH_ALGO__MAX] = { |
| 29 | [QCRYPTO_HASH_ALGO_MD5] = QCRYPTO_HASH_DIGEST_LEN_MD5, |
| 30 | [QCRYPTO_HASH_ALGO_SHA1] = QCRYPTO_HASH_DIGEST_LEN_SHA1, |
| 31 | [QCRYPTO_HASH_ALGO_SHA224] = QCRYPTO_HASH_DIGEST_LEN_SHA224, |
| 32 | [QCRYPTO_HASH_ALGO_SHA256] = QCRYPTO_HASH_DIGEST_LEN_SHA256, |
| 33 | [QCRYPTO_HASH_ALGO_SHA384] = QCRYPTO_HASH_DIGEST_LEN_SHA384, |
| 34 | [QCRYPTO_HASH_ALGO_SHA512] = QCRYPTO_HASH_DIGEST_LEN_SHA512, |
| 35 | [QCRYPTO_HASH_ALGO_RIPEMD160] = QCRYPTO_HASH_DIGEST_LEN_RIPEMD160, |
liequan che | d078da8 | 2024-10-30 08:51:46 +0000 | [diff] [blame] | 36 | #ifdef CONFIG_CRYPTO_SM3 |
| 37 | [QCRYPTO_HASH_ALGO_SM3] = QCRYPTO_HASH_DIGEST_LEN_SM3, |
| 38 | #endif |
Daniel P. Berrange | 7b36064 | 2015-10-23 16:14:50 +0100 | [diff] [blame] | 39 | }; |
| 40 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 41 | size_t qcrypto_hash_digest_len(QCryptoHashAlgo alg) |
Daniel P. Berrange | c0377a7 | 2016-01-15 11:23:45 +0000 | [diff] [blame] | 42 | { |
Paolo Bonzini | b35c1f3 | 2016-05-20 11:09:54 +0200 | [diff] [blame] | 43 | assert(alg < G_N_ELEMENTS(qcrypto_hash_alg_size)); |
Daniel P. Berrange | c0377a7 | 2016-01-15 11:23:45 +0000 | [diff] [blame] | 44 | return qcrypto_hash_alg_size[alg]; |
| 45 | } |
| 46 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 47 | int qcrypto_hash_bytesv(QCryptoHashAlgo alg, |
Longpeng(Mike) | aa8efad | 2017-07-14 14:03:59 -0400 | [diff] [blame] | 48 | const struct iovec *iov, |
| 49 | size_t niov, |
| 50 | uint8_t **result, |
| 51 | size_t *resultlen, |
| 52 | Error **errp) |
| 53 | { |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 54 | g_autoptr(QCryptoHash) ctx = qcrypto_hash_new(alg, errp); |
Longpeng(Mike) | 9a05977 | 2017-07-14 14:04:07 -0400 | [diff] [blame] | 55 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 56 | if (!ctx) { |
| 57 | return -1; |
| 58 | } |
| 59 | |
| 60 | if (qcrypto_hash_updatev(ctx, iov, niov, errp) < 0 || |
| 61 | qcrypto_hash_finalize_bytes(ctx, result, resultlen, errp) < 0) { |
| 62 | return -1; |
| 63 | } |
| 64 | |
| 65 | return 0; |
Longpeng(Mike) | aa8efad | 2017-07-14 14:03:59 -0400 | [diff] [blame] | 66 | } |
| 67 | |
Daniel P. Berrange | c0377a7 | 2016-01-15 11:23:45 +0000 | [diff] [blame] | 68 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 69 | int qcrypto_hash_bytes(QCryptoHashAlgo alg, |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 70 | const char *buf, |
| 71 | size_t len, |
| 72 | uint8_t **result, |
| 73 | size_t *resultlen, |
| 74 | Error **errp) |
| 75 | { |
| 76 | struct iovec iov = { .iov_base = (char *)buf, |
| 77 | .iov_len = len }; |
| 78 | return qcrypto_hash_bytesv(alg, &iov, 1, result, resultlen, errp); |
| 79 | } |
| 80 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 81 | int qcrypto_hash_updatev(QCryptoHash *hash, |
| 82 | const struct iovec *iov, |
| 83 | size_t niov, |
| 84 | Error **errp) |
| 85 | { |
| 86 | QCryptoHashDriver *drv = hash->driver; |
| 87 | |
| 88 | return drv->hash_update(hash, iov, niov, errp); |
| 89 | } |
| 90 | |
| 91 | int qcrypto_hash_update(QCryptoHash *hash, |
| 92 | const char *buf, |
| 93 | size_t len, |
| 94 | Error **errp) |
| 95 | { |
| 96 | struct iovec iov = { .iov_base = (char *)buf, .iov_len = len }; |
| 97 | |
| 98 | return qcrypto_hash_updatev(hash, &iov, 1, errp); |
| 99 | } |
| 100 | |
| 101 | QCryptoHash *qcrypto_hash_new(QCryptoHashAlgo alg, Error **errp) |
| 102 | { |
| 103 | QCryptoHash *hash = NULL; |
| 104 | |
| 105 | if (!qcrypto_hash_supports(alg)) { |
| 106 | error_setg(errp, "Unsupported hash algorithm %s", |
| 107 | QCryptoHashAlgo_str(alg)); |
| 108 | return NULL; |
| 109 | } |
| 110 | |
| 111 | #ifdef CONFIG_AF_ALG |
| 112 | hash = qcrypto_hash_afalg_driver.hash_new(alg, NULL); |
| 113 | if (hash) { |
| 114 | hash->driver = &qcrypto_hash_afalg_driver; |
| 115 | return hash; |
| 116 | } |
| 117 | #endif |
| 118 | |
| 119 | hash = qcrypto_hash_lib_driver.hash_new(alg, errp); |
| 120 | if (!hash) { |
| 121 | return NULL; |
| 122 | } |
| 123 | |
| 124 | hash->driver = &qcrypto_hash_lib_driver; |
| 125 | return hash; |
| 126 | } |
| 127 | |
| 128 | void qcrypto_hash_free(QCryptoHash *hash) |
| 129 | { |
| 130 | QCryptoHashDriver *drv; |
| 131 | |
| 132 | if (hash) { |
| 133 | drv = hash->driver; |
| 134 | drv->hash_free(hash); |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | int qcrypto_hash_finalize_bytes(QCryptoHash *hash, |
| 139 | uint8_t **result, |
| 140 | size_t *result_len, |
| 141 | Error **errp) |
| 142 | { |
| 143 | QCryptoHashDriver *drv = hash->driver; |
| 144 | |
| 145 | return drv->hash_finalize(hash, result, result_len, errp); |
| 146 | } |
| 147 | |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 148 | static const char hex[] = "0123456789abcdef"; |
| 149 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 150 | int qcrypto_hash_finalize_digest(QCryptoHash *hash, |
| 151 | char **digest, |
| 152 | Error **errp) |
| 153 | { |
| 154 | int ret; |
| 155 | g_autofree uint8_t *result = NULL; |
| 156 | size_t resultlen = 0; |
| 157 | size_t i; |
| 158 | |
| 159 | ret = qcrypto_hash_finalize_bytes(hash, &result, &resultlen, errp); |
| 160 | if (ret == 0) { |
| 161 | *digest = g_new0(char, (resultlen * 2) + 1); |
| 162 | for (i = 0 ; i < resultlen ; i++) { |
| 163 | (*digest)[(i * 2)] = hex[(result[i] >> 4) & 0xf]; |
| 164 | (*digest)[(i * 2) + 1] = hex[result[i] & 0xf]; |
| 165 | } |
| 166 | (*digest)[resultlen * 2] = '\0'; |
| 167 | } |
| 168 | |
| 169 | return ret; |
| 170 | } |
| 171 | |
| 172 | int qcrypto_hash_finalize_base64(QCryptoHash *hash, |
| 173 | char **base64, |
| 174 | Error **errp) |
| 175 | { |
| 176 | int ret; |
| 177 | g_autofree uint8_t *result = NULL; |
| 178 | size_t resultlen = 0; |
| 179 | |
| 180 | ret = qcrypto_hash_finalize_bytes(hash, &result, &resultlen, errp); |
| 181 | if (ret == 0) { |
| 182 | *base64 = g_base64_encode(result, resultlen); |
| 183 | } |
| 184 | |
| 185 | return ret; |
| 186 | } |
| 187 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 188 | int qcrypto_hash_digestv(QCryptoHashAlgo alg, |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 189 | const struct iovec *iov, |
| 190 | size_t niov, |
| 191 | char **digest, |
| 192 | Error **errp) |
| 193 | { |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 194 | g_autoptr(QCryptoHash) ctx = qcrypto_hash_new(alg, errp); |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 195 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 196 | if (!ctx) { |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 197 | return -1; |
| 198 | } |
| 199 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 200 | if (qcrypto_hash_updatev(ctx, iov, niov, errp) < 0 || |
| 201 | qcrypto_hash_finalize_digest(ctx, digest, errp) < 0) { |
| 202 | return -1; |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 203 | } |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 204 | |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 205 | return 0; |
| 206 | } |
| 207 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 208 | int qcrypto_hash_digest(QCryptoHashAlgo alg, |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 209 | const char *buf, |
| 210 | size_t len, |
| 211 | char **digest, |
| 212 | Error **errp) |
| 213 | { |
| 214 | struct iovec iov = { .iov_base = (char *)buf, .iov_len = len }; |
| 215 | |
| 216 | return qcrypto_hash_digestv(alg, &iov, 1, digest, errp); |
| 217 | } |
| 218 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 219 | int qcrypto_hash_base64v(QCryptoHashAlgo alg, |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 220 | const struct iovec *iov, |
| 221 | size_t niov, |
| 222 | char **base64, |
| 223 | Error **errp) |
| 224 | { |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 225 | g_autoptr(QCryptoHash) ctx = qcrypto_hash_new(alg, errp); |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 226 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 227 | if (!ctx) { |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 228 | return -1; |
| 229 | } |
| 230 | |
Alejandro Zeise | e3c0752 | 2024-10-08 09:57:15 +0200 | [diff] [blame] | 231 | if (qcrypto_hash_updatev(ctx, iov, niov, errp) < 0 || |
| 232 | qcrypto_hash_finalize_base64(ctx, base64, errp) < 0) { |
| 233 | return -1; |
| 234 | } |
| 235 | |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 236 | return 0; |
| 237 | } |
| 238 | |
Markus Armbruster | ef834aa | 2024-09-04 13:18:28 +0200 | [diff] [blame] | 239 | int qcrypto_hash_base64(QCryptoHashAlgo alg, |
Daniel P. Berrange | ddbb0d0 | 2015-07-01 18:10:29 +0100 | [diff] [blame] | 240 | const char *buf, |
| 241 | size_t len, |
| 242 | char **base64, |
| 243 | Error **errp) |
| 244 | { |
| 245 | struct iovec iov = { .iov_base = (char *)buf, .iov_len = len }; |
| 246 | |
| 247 | return qcrypto_hash_base64v(alg, &iov, 1, base64, errp); |
| 248 | } |