Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Crypto cipher nettle algorithms |
| 3 | * |
| 4 | * Copyright (c) 2015 Red Hat, Inc. |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
Thomas Huth | b7cbb87 | 2019-02-13 16:54:59 +0100 | [diff] [blame] | 9 | * version 2.1 of the License, or (at your option) any later version. |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | |
Daniel P. Berrangé | dc2207a | 2019-10-14 17:28:27 +0100 | [diff] [blame] | 21 | #ifdef CONFIG_QEMU_PRIVATE_XTS |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 22 | #include "crypto/xts.h" |
Daniel P. Berrangé | dc2207a | 2019-10-14 17:28:27 +0100 | [diff] [blame] | 23 | #endif |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 24 | |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 25 | #include <nettle/nettle-types.h> |
| 26 | #include <nettle/aes.h> |
| 27 | #include <nettle/des.h> |
| 28 | #include <nettle/cbc.h> |
Daniel P. Berrange | 084a85e | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 29 | #include <nettle/cast128.h> |
Daniel P. Berrange | 9431852 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 30 | #include <nettle/serpent.h> |
Daniel P. Berrange | 50f6753 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 31 | #include <nettle/twofish.h> |
Gonglei | 3c28292 | 2016-09-26 17:23:22 +0800 | [diff] [blame] | 32 | #include <nettle/ctr.h> |
Daniel P. Berrangé | dc2207a | 2019-10-14 17:28:27 +0100 | [diff] [blame] | 33 | #ifndef CONFIG_QEMU_PRIVATE_XTS |
| 34 | #include <nettle/xts.h> |
| 35 | #endif |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 36 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 37 | static inline bool qcrypto_length_check(size_t len, size_t blocksize, |
| 38 | Error **errp) |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 39 | { |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 40 | if (unlikely(len & (blocksize - 1))) { |
| 41 | error_setg(errp, "Length %zu must be a multiple of block size %zu", |
| 42 | len, blocksize); |
| 43 | return false; |
| 44 | } |
| 45 | return true; |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 46 | } |
| 47 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 48 | |
| 49 | static void qcrypto_cipher_ctx_free(QCryptoCipher *ctx) |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 50 | { |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 51 | g_free(ctx); |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 52 | } |
| 53 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 54 | static int qcrypto_cipher_no_setiv(QCryptoCipher *cipher, |
| 55 | const uint8_t *iv, size_t niv, |
| 56 | Error **errp) |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 57 | { |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 58 | error_setg(errp, "Setting IV is not supported"); |
| 59 | return -1; |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 60 | } |
| 61 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 62 | |
| 63 | #define DEFINE_SETIV(NAME, TYPE, BLEN) \ |
| 64 | static int NAME##_setiv(QCryptoCipher *cipher, const uint8_t *iv, \ |
| 65 | size_t niv, Error **errp) \ |
| 66 | { \ |
| 67 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 68 | if (niv != BLEN) { \ |
| 69 | error_setg(errp, "Expected IV size %d not %zu", BLEN, niv); \ |
| 70 | return -1; \ |
| 71 | } \ |
| 72 | memcpy(ctx->iv, iv, niv); \ |
| 73 | return 0; \ |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 74 | } |
| 75 | |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 76 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 77 | #define DEFINE_ECB(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 78 | static int NAME##_encrypt_ecb(QCryptoCipher *cipher, const void *in, \ |
| 79 | void *out, size_t len, Error **errp) \ |
| 80 | { \ |
| 81 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 82 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 83 | return -1; \ |
| 84 | } \ |
| 85 | ENCRYPT(&ctx->key, len, out, in); \ |
| 86 | return 0; \ |
| 87 | } \ |
| 88 | static int NAME##_decrypt_ecb(QCryptoCipher *cipher, const void *in, \ |
| 89 | void *out, size_t len, Error **errp) \ |
| 90 | { \ |
| 91 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 92 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 93 | return -1; \ |
| 94 | } \ |
| 95 | DECRYPT(&ctx->key, len, out, in); \ |
| 96 | return 0; \ |
| 97 | } \ |
| 98 | static const struct QCryptoCipherDriver NAME##_driver_ecb = { \ |
| 99 | .cipher_encrypt = NAME##_encrypt_ecb, \ |
| 100 | .cipher_decrypt = NAME##_decrypt_ecb, \ |
| 101 | .cipher_setiv = qcrypto_cipher_no_setiv, \ |
| 102 | .cipher_free = qcrypto_cipher_ctx_free, \ |
| 103 | }; |
| 104 | |
| 105 | |
| 106 | #define DEFINE_CBC(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 107 | static int NAME##_encrypt_cbc(QCryptoCipher *cipher, const void *in, \ |
| 108 | void *out, size_t len, Error **errp) \ |
| 109 | { \ |
| 110 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 111 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 112 | return -1; \ |
| 113 | } \ |
| 114 | cbc_encrypt(&ctx->key, ENCRYPT, BLEN, ctx->iv, len, out, in); \ |
| 115 | return 0; \ |
| 116 | } \ |
| 117 | static int NAME##_decrypt_cbc(QCryptoCipher *cipher, const void *in, \ |
| 118 | void *out, size_t len, Error **errp) \ |
| 119 | { \ |
| 120 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 121 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 122 | return -1; \ |
| 123 | } \ |
| 124 | cbc_decrypt(&ctx->key, DECRYPT, BLEN, ctx->iv, len, out, in); \ |
| 125 | return 0; \ |
| 126 | } \ |
| 127 | static const struct QCryptoCipherDriver NAME##_driver_cbc = { \ |
| 128 | .cipher_encrypt = NAME##_encrypt_cbc, \ |
| 129 | .cipher_decrypt = NAME##_decrypt_cbc, \ |
| 130 | .cipher_setiv = NAME##_setiv, \ |
| 131 | .cipher_free = qcrypto_cipher_ctx_free, \ |
| 132 | }; |
| 133 | |
| 134 | |
| 135 | #define DEFINE_CTR(NAME, TYPE, BLEN, ENCRYPT) \ |
| 136 | static int NAME##_encrypt_ctr(QCryptoCipher *cipher, const void *in, \ |
| 137 | void *out, size_t len, Error **errp) \ |
| 138 | { \ |
| 139 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 140 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 141 | return -1; \ |
| 142 | } \ |
| 143 | ctr_crypt(&ctx->key, ENCRYPT, BLEN, ctx->iv, len, out, in); \ |
| 144 | return 0; \ |
| 145 | } \ |
| 146 | static const struct QCryptoCipherDriver NAME##_driver_ctr = { \ |
| 147 | .cipher_encrypt = NAME##_encrypt_ctr, \ |
| 148 | .cipher_decrypt = NAME##_encrypt_ctr, \ |
| 149 | .cipher_setiv = NAME##_setiv, \ |
| 150 | .cipher_free = qcrypto_cipher_ctx_free, \ |
| 151 | }; |
| 152 | |
| 153 | |
| 154 | #ifdef CONFIG_QEMU_PRIVATE_XTS |
| 155 | #define DEFINE__XTS(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 156 | static void NAME##_xts_wrape(const void *ctx, size_t length, \ |
| 157 | uint8_t *dst, const uint8_t *src) \ |
| 158 | { \ |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 159 | ENCRYPT((const void *)ctx, length, dst, src); \ |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 160 | } \ |
| 161 | static void NAME##_xts_wrapd(const void *ctx, size_t length, \ |
| 162 | uint8_t *dst, const uint8_t *src) \ |
| 163 | { \ |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 164 | DECRYPT((const void *)ctx, length, dst, src); \ |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 165 | } \ |
| 166 | static int NAME##_encrypt_xts(QCryptoCipher *cipher, const void *in, \ |
| 167 | void *out, size_t len, Error **errp) \ |
| 168 | { \ |
| 169 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 170 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 171 | return -1; \ |
| 172 | } \ |
| 173 | xts_encrypt(&ctx->key, &ctx->key_xts, \ |
| 174 | NAME##_xts_wrape, NAME##_xts_wrapd, \ |
| 175 | ctx->iv, len, out, in); \ |
| 176 | return 0; \ |
| 177 | } \ |
| 178 | static int NAME##_decrypt_xts(QCryptoCipher *cipher, const void *in, \ |
| 179 | void *out, size_t len, Error **errp) \ |
| 180 | { \ |
| 181 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 182 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 183 | return -1; \ |
| 184 | } \ |
| 185 | xts_decrypt(&ctx->key, &ctx->key_xts, \ |
| 186 | NAME##_xts_wrape, NAME##_xts_wrapd, \ |
| 187 | ctx->iv, len, out, in); \ |
| 188 | return 0; \ |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 189 | } |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 190 | #else |
| 191 | #define DEFINE__XTS(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 192 | static int NAME##_encrypt_xts(QCryptoCipher *cipher, const void *in, \ |
| 193 | void *out, size_t len, Error **errp) \ |
| 194 | { \ |
| 195 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 196 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 197 | return -1; \ |
| 198 | } \ |
| 199 | xts_encrypt_message(&ctx->key, &ctx->key_xts, ENCRYPT, \ |
| 200 | ctx->iv, len, out, in); \ |
| 201 | return 0; \ |
| 202 | } \ |
| 203 | static int NAME##_decrypt_xts(QCryptoCipher *cipher, const void *in, \ |
| 204 | void *out, size_t len, Error **errp) \ |
| 205 | { \ |
| 206 | TYPE *ctx = container_of(cipher, TYPE, base); \ |
| 207 | if (!qcrypto_length_check(len, BLEN, errp)) { \ |
| 208 | return -1; \ |
| 209 | } \ |
| 210 | xts_decrypt_message(&ctx->key, &ctx->key_xts, DECRYPT, ENCRYPT, \ |
| 211 | ctx->iv, len, out, in); \ |
| 212 | return 0; \ |
| 213 | } |
| 214 | #endif |
| 215 | |
| 216 | #define DEFINE_XTS(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 217 | QEMU_BUILD_BUG_ON(BLEN != XTS_BLOCK_SIZE); \ |
| 218 | DEFINE__XTS(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 219 | static const struct QCryptoCipherDriver NAME##_driver_xts = { \ |
| 220 | .cipher_encrypt = NAME##_encrypt_xts, \ |
| 221 | .cipher_decrypt = NAME##_decrypt_xts, \ |
| 222 | .cipher_setiv = NAME##_setiv, \ |
| 223 | .cipher_free = qcrypto_cipher_ctx_free, \ |
| 224 | }; |
| 225 | |
| 226 | |
| 227 | #define DEFINE_ECB_CBC_CTR(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 228 | DEFINE_SETIV(NAME, TYPE, BLEN) \ |
| 229 | DEFINE_ECB(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 230 | DEFINE_CBC(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 231 | DEFINE_CTR(NAME, TYPE, BLEN, ENCRYPT) |
| 232 | |
| 233 | #define DEFINE_ECB_CBC_CTR_XTS(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 234 | DEFINE_ECB_CBC_CTR(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) \ |
| 235 | DEFINE_XTS(NAME, TYPE, BLEN, ENCRYPT, DECRYPT) |
| 236 | |
| 237 | |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 238 | typedef struct QCryptoNettleDES { |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 239 | QCryptoCipher base; |
| 240 | struct des_ctx key; |
| 241 | uint8_t iv[DES_BLOCK_SIZE]; |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 242 | } QCryptoNettleDES; |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 243 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 244 | static void des_encrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 245 | uint8_t *dst, const uint8_t *src) |
| 246 | { |
| 247 | des_encrypt(ctx, length, dst, src); |
| 248 | } |
| 249 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 250 | static void des_decrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 251 | uint8_t *dst, const uint8_t *src) |
| 252 | { |
| 253 | des_decrypt(ctx, length, dst, src); |
| 254 | } |
| 255 | |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 256 | DEFINE_ECB_CBC_CTR(qcrypto_nettle_des, QCryptoNettleDES, |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 257 | DES_BLOCK_SIZE, des_encrypt_native, des_decrypt_native) |
| 258 | |
| 259 | |
| 260 | typedef struct QCryptoNettleDES3 { |
| 261 | QCryptoCipher base; |
| 262 | struct des3_ctx key; |
| 263 | uint8_t iv[DES3_BLOCK_SIZE]; |
| 264 | } QCryptoNettleDES3; |
| 265 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 266 | static void des3_encrypt_native(const void *ctx, size_t length, |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 267 | uint8_t *dst, const uint8_t *src) |
| 268 | { |
| 269 | des3_encrypt(ctx, length, dst, src); |
| 270 | } |
| 271 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 272 | static void des3_decrypt_native(const void *ctx, size_t length, |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 273 | uint8_t *dst, const uint8_t *src) |
| 274 | { |
| 275 | des3_decrypt(ctx, length, dst, src); |
| 276 | } |
| 277 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 278 | DEFINE_ECB_CBC_CTR(qcrypto_nettle_des3, QCryptoNettleDES3, DES3_BLOCK_SIZE, |
| 279 | des3_encrypt_native, des3_decrypt_native) |
| 280 | |
| 281 | |
| 282 | typedef struct QCryptoNettleAES128 { |
| 283 | QCryptoCipher base; |
| 284 | uint8_t iv[AES_BLOCK_SIZE]; |
| 285 | /* First key from pair is encode, second key is decode. */ |
| 286 | struct aes128_ctx key[2], key_xts[2]; |
| 287 | } QCryptoNettleAES128; |
| 288 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 289 | static void aes128_encrypt_native(const void *ctx, size_t length, |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 290 | uint8_t *dst, const uint8_t *src) |
| 291 | { |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 292 | const struct aes128_ctx *keys = ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 293 | aes128_encrypt(&keys[0], length, dst, src); |
| 294 | } |
| 295 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 296 | static void aes128_decrypt_native(const void *ctx, size_t length, |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 297 | uint8_t *dst, const uint8_t *src) |
| 298 | { |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 299 | const struct aes128_ctx *keys = ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 300 | aes128_decrypt(&keys[1], length, dst, src); |
| 301 | } |
| 302 | |
| 303 | DEFINE_ECB_CBC_CTR_XTS(qcrypto_nettle_aes128, |
| 304 | QCryptoNettleAES128, AES_BLOCK_SIZE, |
| 305 | aes128_encrypt_native, aes128_decrypt_native) |
| 306 | |
| 307 | |
| 308 | typedef struct QCryptoNettleAES192 { |
| 309 | QCryptoCipher base; |
| 310 | uint8_t iv[AES_BLOCK_SIZE]; |
| 311 | /* First key from pair is encode, second key is decode. */ |
| 312 | struct aes192_ctx key[2], key_xts[2]; |
| 313 | } QCryptoNettleAES192; |
| 314 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 315 | static void aes192_encrypt_native(const void *ctx, size_t length, |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 316 | uint8_t *dst, const uint8_t *src) |
| 317 | { |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 318 | const struct aes192_ctx *keys = ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 319 | aes192_encrypt(&keys[0], length, dst, src); |
| 320 | } |
| 321 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 322 | static void aes192_decrypt_native(const void *ctx, size_t length, |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 323 | uint8_t *dst, const uint8_t *src) |
| 324 | { |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 325 | const struct aes192_ctx *keys = ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 326 | aes192_decrypt(&keys[1], length, dst, src); |
| 327 | } |
| 328 | |
| 329 | DEFINE_ECB_CBC_CTR_XTS(qcrypto_nettle_aes192, |
| 330 | QCryptoNettleAES192, AES_BLOCK_SIZE, |
| 331 | aes192_encrypt_native, aes192_decrypt_native) |
| 332 | |
| 333 | |
| 334 | typedef struct QCryptoNettleAES256 { |
| 335 | QCryptoCipher base; |
| 336 | uint8_t iv[AES_BLOCK_SIZE]; |
| 337 | /* First key from pair is encode, second key is decode. */ |
| 338 | struct aes256_ctx key[2], key_xts[2]; |
| 339 | } QCryptoNettleAES256; |
| 340 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 341 | static void aes256_encrypt_native(const void *ctx, size_t length, |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 342 | uint8_t *dst, const uint8_t *src) |
| 343 | { |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 344 | const struct aes256_ctx *keys = ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 345 | aes256_encrypt(&keys[0], length, dst, src); |
| 346 | } |
| 347 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 348 | static void aes256_decrypt_native(const void *ctx, size_t length, |
| 349 | uint8_t *dst, const uint8_t *src) |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 350 | { |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 351 | const struct aes256_ctx *keys = ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 352 | aes256_decrypt(&keys[1], length, dst, src); |
| 353 | } |
| 354 | |
| 355 | DEFINE_ECB_CBC_CTR_XTS(qcrypto_nettle_aes256, |
| 356 | QCryptoNettleAES256, AES_BLOCK_SIZE, |
| 357 | aes256_encrypt_native, aes256_decrypt_native) |
| 358 | |
| 359 | |
| 360 | typedef struct QCryptoNettleCAST128 { |
| 361 | QCryptoCipher base; |
| 362 | uint8_t iv[CAST128_BLOCK_SIZE]; |
| 363 | struct cast128_ctx key, key_xts; |
| 364 | } QCryptoNettleCAST128; |
| 365 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 366 | static void cast128_encrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 367 | uint8_t *dst, const uint8_t *src) |
| 368 | { |
| 369 | cast128_encrypt(ctx, length, dst, src); |
| 370 | } |
| 371 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 372 | static void cast128_decrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 373 | uint8_t *dst, const uint8_t *src) |
| 374 | { |
| 375 | cast128_decrypt(ctx, length, dst, src); |
| 376 | } |
| 377 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 378 | DEFINE_ECB_CBC_CTR(qcrypto_nettle_cast128, |
| 379 | QCryptoNettleCAST128, CAST128_BLOCK_SIZE, |
| 380 | cast128_encrypt_native, cast128_decrypt_native) |
| 381 | |
| 382 | |
| 383 | typedef struct QCryptoNettleSerpent { |
| 384 | QCryptoCipher base; |
| 385 | uint8_t iv[SERPENT_BLOCK_SIZE]; |
| 386 | struct serpent_ctx key, key_xts; |
| 387 | } QCryptoNettleSerpent; |
| 388 | |
| 389 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 390 | static void serpent_encrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 391 | uint8_t *dst, const uint8_t *src) |
| 392 | { |
| 393 | serpent_encrypt(ctx, length, dst, src); |
| 394 | } |
| 395 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 396 | static void serpent_decrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 397 | uint8_t *dst, const uint8_t *src) |
| 398 | { |
| 399 | serpent_decrypt(ctx, length, dst, src); |
| 400 | } |
| 401 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 402 | DEFINE_ECB_CBC_CTR_XTS(qcrypto_nettle_serpent, |
| 403 | QCryptoNettleSerpent, SERPENT_BLOCK_SIZE, |
| 404 | serpent_encrypt_native, serpent_decrypt_native) |
| 405 | |
| 406 | |
| 407 | typedef struct QCryptoNettleTwofish { |
| 408 | QCryptoCipher base; |
| 409 | uint8_t iv[TWOFISH_BLOCK_SIZE]; |
| 410 | struct twofish_ctx key, key_xts; |
| 411 | } QCryptoNettleTwofish; |
| 412 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 413 | static void twofish_encrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 414 | uint8_t *dst, const uint8_t *src) |
| 415 | { |
| 416 | twofish_encrypt(ctx, length, dst, src); |
| 417 | } |
| 418 | |
Daniel P. Berrangé | 115e4b7 | 2021-05-14 13:04:07 +0100 | [diff] [blame] | 419 | static void twofish_decrypt_native(const void *ctx, size_t length, |
Daniel P. Berrange | f7ac78c | 2016-03-18 12:39:12 +0000 | [diff] [blame] | 420 | uint8_t *dst, const uint8_t *src) |
| 421 | { |
| 422 | twofish_decrypt(ctx, length, dst, src); |
| 423 | } |
| 424 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 425 | DEFINE_ECB_CBC_CTR_XTS(qcrypto_nettle_twofish, |
| 426 | QCryptoNettleTwofish, TWOFISH_BLOCK_SIZE, |
| 427 | twofish_encrypt_native, twofish_decrypt_native) |
Radim Krčmář | d3462e3 | 2015-07-10 19:18:01 +0200 | [diff] [blame] | 428 | |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 429 | |
Gonglei | f844836 | 2016-09-26 17:23:21 +0800 | [diff] [blame] | 430 | bool qcrypto_cipher_supports(QCryptoCipherAlgorithm alg, |
| 431 | QCryptoCipherMode mode) |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 432 | { |
| 433 | switch (alg) { |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 434 | case QCRYPTO_CIPHER_ALG_DES: |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 435 | case QCRYPTO_CIPHER_ALG_3DES: |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 436 | case QCRYPTO_CIPHER_ALG_AES_128: |
| 437 | case QCRYPTO_CIPHER_ALG_AES_192: |
| 438 | case QCRYPTO_CIPHER_ALG_AES_256: |
Daniel P. Berrange | 084a85e | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 439 | case QCRYPTO_CIPHER_ALG_CAST5_128: |
Daniel P. Berrange | 9431852 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 440 | case QCRYPTO_CIPHER_ALG_SERPENT_128: |
| 441 | case QCRYPTO_CIPHER_ALG_SERPENT_192: |
| 442 | case QCRYPTO_CIPHER_ALG_SERPENT_256: |
Daniel P. Berrange | 50f6753 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 443 | case QCRYPTO_CIPHER_ALG_TWOFISH_128: |
| 444 | case QCRYPTO_CIPHER_ALG_TWOFISH_192: |
| 445 | case QCRYPTO_CIPHER_ALG_TWOFISH_256: |
Gonglei | f844836 | 2016-09-26 17:23:21 +0800 | [diff] [blame] | 446 | break; |
| 447 | default: |
| 448 | return false; |
| 449 | } |
| 450 | |
| 451 | switch (mode) { |
| 452 | case QCRYPTO_CIPHER_MODE_ECB: |
| 453 | case QCRYPTO_CIPHER_MODE_CBC: |
| 454 | case QCRYPTO_CIPHER_MODE_XTS: |
| 455 | case QCRYPTO_CIPHER_MODE_CTR: |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 456 | return true; |
| 457 | default: |
| 458 | return false; |
| 459 | } |
| 460 | } |
| 461 | |
Richard Henderson | 3eedf5c | 2020-08-28 10:05:14 -0700 | [diff] [blame] | 462 | static QCryptoCipher *qcrypto_cipher_ctx_new(QCryptoCipherAlgorithm alg, |
| 463 | QCryptoCipherMode mode, |
| 464 | const uint8_t *key, |
| 465 | size_t nkey, |
| 466 | Error **errp) |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 467 | { |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 468 | switch (mode) { |
| 469 | case QCRYPTO_CIPHER_MODE_ECB: |
| 470 | case QCRYPTO_CIPHER_MODE_CBC: |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 471 | case QCRYPTO_CIPHER_MODE_XTS: |
Gonglei | 3c28292 | 2016-09-26 17:23:22 +0800 | [diff] [blame] | 472 | case QCRYPTO_CIPHER_MODE_CTR: |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 473 | break; |
| 474 | default: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 475 | goto bad_cipher_mode; |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 476 | } |
| 477 | |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 478 | if (!qcrypto_cipher_validate_key_length(alg, mode, nkey, errp)) { |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 479 | return NULL; |
| 480 | } |
| 481 | |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 482 | switch (alg) { |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 483 | case QCRYPTO_CIPHER_ALG_DES: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 484 | { |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 485 | QCryptoNettleDES *ctx; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 486 | const QCryptoCipherDriver *drv; |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 487 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 488 | switch (mode) { |
| 489 | case QCRYPTO_CIPHER_MODE_ECB: |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 490 | drv = &qcrypto_nettle_des_driver_ecb; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 491 | break; |
| 492 | case QCRYPTO_CIPHER_MODE_CBC: |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 493 | drv = &qcrypto_nettle_des_driver_cbc; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 494 | break; |
| 495 | case QCRYPTO_CIPHER_MODE_CTR: |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 496 | drv = &qcrypto_nettle_des_driver_ctr; |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 497 | break; |
| 498 | default: |
| 499 | goto bad_cipher_mode; |
| 500 | } |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 501 | |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 502 | ctx = g_new0(QCryptoNettleDES, 1); |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 503 | ctx->base.driver = drv; |
Daniel P. Berrangé | 83bee4b | 2021-06-29 14:25:32 +0100 | [diff] [blame] | 504 | des_set_key(&ctx->key, key); |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 505 | |
| 506 | return &ctx->base; |
| 507 | } |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 508 | |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 509 | case QCRYPTO_CIPHER_ALG_3DES: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 510 | { |
| 511 | QCryptoNettleDES3 *ctx; |
| 512 | const QCryptoCipherDriver *drv; |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 513 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 514 | switch (mode) { |
| 515 | case QCRYPTO_CIPHER_MODE_ECB: |
| 516 | drv = &qcrypto_nettle_des3_driver_ecb; |
| 517 | break; |
| 518 | case QCRYPTO_CIPHER_MODE_CBC: |
| 519 | drv = &qcrypto_nettle_des3_driver_cbc; |
| 520 | break; |
| 521 | case QCRYPTO_CIPHER_MODE_CTR: |
| 522 | drv = &qcrypto_nettle_des3_driver_ctr; |
| 523 | break; |
| 524 | default: |
| 525 | goto bad_cipher_mode; |
| 526 | } |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 527 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 528 | ctx = g_new0(QCryptoNettleDES3, 1); |
| 529 | ctx->base.driver = drv; |
| 530 | des3_set_key(&ctx->key, key); |
| 531 | return &ctx->base; |
| 532 | } |
Longpeng(Mike) | ffb7bf4 | 2016-12-08 10:33:28 +0800 | [diff] [blame] | 533 | |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 534 | case QCRYPTO_CIPHER_ALG_AES_128: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 535 | { |
| 536 | QCryptoNettleAES128 *ctx = g_new0(QCryptoNettleAES128, 1); |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 537 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 538 | switch (mode) { |
| 539 | case QCRYPTO_CIPHER_MODE_ECB: |
| 540 | ctx->base.driver = &qcrypto_nettle_aes128_driver_ecb; |
| 541 | break; |
| 542 | case QCRYPTO_CIPHER_MODE_CBC: |
| 543 | ctx->base.driver = &qcrypto_nettle_aes128_driver_cbc; |
| 544 | break; |
| 545 | case QCRYPTO_CIPHER_MODE_CTR: |
| 546 | ctx->base.driver = &qcrypto_nettle_aes128_driver_ctr; |
| 547 | break; |
| 548 | case QCRYPTO_CIPHER_MODE_XTS: |
| 549 | ctx->base.driver = &qcrypto_nettle_aes128_driver_xts; |
| 550 | nkey /= 2; |
| 551 | aes128_set_encrypt_key(&ctx->key_xts[0], key + nkey); |
| 552 | aes128_set_decrypt_key(&ctx->key_xts[1], key + nkey); |
| 553 | break; |
| 554 | default: |
| 555 | g_assert_not_reached(); |
| 556 | } |
| 557 | aes128_set_encrypt_key(&ctx->key[0], key); |
| 558 | aes128_set_decrypt_key(&ctx->key[1], key); |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 559 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 560 | return &ctx->base; |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 561 | } |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 562 | |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 563 | case QCRYPTO_CIPHER_ALG_AES_192: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 564 | { |
| 565 | QCryptoNettleAES192 *ctx = g_new0(QCryptoNettleAES192, 1); |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 566 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 567 | switch (mode) { |
| 568 | case QCRYPTO_CIPHER_MODE_ECB: |
| 569 | ctx->base.driver = &qcrypto_nettle_aes192_driver_ecb; |
| 570 | break; |
| 571 | case QCRYPTO_CIPHER_MODE_CBC: |
| 572 | ctx->base.driver = &qcrypto_nettle_aes192_driver_cbc; |
| 573 | break; |
| 574 | case QCRYPTO_CIPHER_MODE_CTR: |
| 575 | ctx->base.driver = &qcrypto_nettle_aes192_driver_ctr; |
| 576 | break; |
| 577 | case QCRYPTO_CIPHER_MODE_XTS: |
| 578 | ctx->base.driver = &qcrypto_nettle_aes192_driver_xts; |
| 579 | nkey /= 2; |
| 580 | aes192_set_encrypt_key(&ctx->key_xts[0], key + nkey); |
| 581 | aes192_set_decrypt_key(&ctx->key_xts[1], key + nkey); |
| 582 | break; |
| 583 | default: |
| 584 | g_assert_not_reached(); |
| 585 | } |
| 586 | aes192_set_encrypt_key(&ctx->key[0], key); |
| 587 | aes192_set_decrypt_key(&ctx->key[1], key); |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 588 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 589 | return &ctx->base; |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 590 | } |
| 591 | |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 592 | case QCRYPTO_CIPHER_ALG_AES_256: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 593 | { |
| 594 | QCryptoNettleAES256 *ctx = g_new0(QCryptoNettleAES256, 1); |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 595 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 596 | switch (mode) { |
| 597 | case QCRYPTO_CIPHER_MODE_ECB: |
| 598 | ctx->base.driver = &qcrypto_nettle_aes256_driver_ecb; |
| 599 | break; |
| 600 | case QCRYPTO_CIPHER_MODE_CBC: |
| 601 | ctx->base.driver = &qcrypto_nettle_aes256_driver_cbc; |
| 602 | break; |
| 603 | case QCRYPTO_CIPHER_MODE_CTR: |
| 604 | ctx->base.driver = &qcrypto_nettle_aes256_driver_ctr; |
| 605 | break; |
| 606 | case QCRYPTO_CIPHER_MODE_XTS: |
| 607 | ctx->base.driver = &qcrypto_nettle_aes256_driver_xts; |
| 608 | nkey /= 2; |
| 609 | aes256_set_encrypt_key(&ctx->key_xts[0], key + nkey); |
| 610 | aes256_set_decrypt_key(&ctx->key_xts[1], key + nkey); |
| 611 | break; |
| 612 | default: |
| 613 | g_assert_not_reached(); |
| 614 | } |
| 615 | aes256_set_encrypt_key(&ctx->key[0], key); |
| 616 | aes256_set_decrypt_key(&ctx->key[1], key); |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 617 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 618 | return &ctx->base; |
Daniel P. Berrangé | e8e67ca | 2019-07-10 17:19:13 +0100 | [diff] [blame] | 619 | } |
| 620 | |
Daniel P. Berrange | 084a85e | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 621 | case QCRYPTO_CIPHER_ALG_CAST5_128: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 622 | { |
| 623 | QCryptoNettleCAST128 *ctx; |
| 624 | const QCryptoCipherDriver *drv; |
Daniel P. Berrange | 084a85e | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 625 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 626 | switch (mode) { |
| 627 | case QCRYPTO_CIPHER_MODE_ECB: |
| 628 | drv = &qcrypto_nettle_cast128_driver_ecb; |
| 629 | break; |
| 630 | case QCRYPTO_CIPHER_MODE_CBC: |
| 631 | drv = &qcrypto_nettle_cast128_driver_cbc; |
| 632 | break; |
| 633 | case QCRYPTO_CIPHER_MODE_CTR: |
| 634 | drv = &qcrypto_nettle_cast128_driver_ctr; |
| 635 | break; |
| 636 | default: |
| 637 | goto bad_cipher_mode; |
| 638 | } |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 639 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 640 | ctx = g_new0(QCryptoNettleCAST128, 1); |
| 641 | ctx->base.driver = drv; |
| 642 | cast5_set_key(&ctx->key, nkey, key); |
| 643 | |
| 644 | return &ctx->base; |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 645 | } |
Daniel P. Berrange | 084a85e | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 646 | |
Daniel P. Berrange | 9431852 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 647 | case QCRYPTO_CIPHER_ALG_SERPENT_128: |
| 648 | case QCRYPTO_CIPHER_ALG_SERPENT_192: |
| 649 | case QCRYPTO_CIPHER_ALG_SERPENT_256: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 650 | { |
| 651 | QCryptoNettleSerpent *ctx = g_new0(QCryptoNettleSerpent, 1); |
Daniel P. Berrange | 9431852 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 652 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 653 | switch (mode) { |
| 654 | case QCRYPTO_CIPHER_MODE_ECB: |
| 655 | ctx->base.driver = &qcrypto_nettle_serpent_driver_ecb; |
| 656 | break; |
| 657 | case QCRYPTO_CIPHER_MODE_CBC: |
| 658 | ctx->base.driver = &qcrypto_nettle_serpent_driver_cbc; |
| 659 | break; |
| 660 | case QCRYPTO_CIPHER_MODE_CTR: |
| 661 | ctx->base.driver = &qcrypto_nettle_serpent_driver_ctr; |
| 662 | break; |
| 663 | case QCRYPTO_CIPHER_MODE_XTS: |
| 664 | ctx->base.driver = &qcrypto_nettle_serpent_driver_xts; |
| 665 | nkey /= 2; |
| 666 | serpent_set_key(&ctx->key_xts, nkey, key + nkey); |
| 667 | break; |
| 668 | default: |
| 669 | g_assert_not_reached(); |
| 670 | } |
| 671 | serpent_set_key(&ctx->key, nkey, key); |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 672 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 673 | return &ctx->base; |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 674 | } |
Daniel P. Berrange | 9431852 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 675 | |
Daniel P. Berrange | 50f6753 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 676 | case QCRYPTO_CIPHER_ALG_TWOFISH_128: |
| 677 | case QCRYPTO_CIPHER_ALG_TWOFISH_192: |
| 678 | case QCRYPTO_CIPHER_ALG_TWOFISH_256: |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 679 | { |
| 680 | QCryptoNettleTwofish *ctx = g_new0(QCryptoNettleTwofish, 1); |
Daniel P. Berrange | 50f6753 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 681 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 682 | switch (mode) { |
| 683 | case QCRYPTO_CIPHER_MODE_ECB: |
| 684 | ctx->base.driver = &qcrypto_nettle_twofish_driver_ecb; |
| 685 | break; |
| 686 | case QCRYPTO_CIPHER_MODE_CBC: |
| 687 | ctx->base.driver = &qcrypto_nettle_twofish_driver_cbc; |
| 688 | break; |
| 689 | case QCRYPTO_CIPHER_MODE_CTR: |
| 690 | ctx->base.driver = &qcrypto_nettle_twofish_driver_ctr; |
| 691 | break; |
| 692 | case QCRYPTO_CIPHER_MODE_XTS: |
| 693 | ctx->base.driver = &qcrypto_nettle_twofish_driver_xts; |
| 694 | nkey /= 2; |
| 695 | twofish_set_key(&ctx->key_xts, nkey, key + nkey); |
| 696 | break; |
| 697 | default: |
| 698 | g_assert_not_reached(); |
| 699 | } |
| 700 | twofish_set_key(&ctx->key, nkey, key); |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 701 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 702 | return &ctx->base; |
Daniel P. Berrange | eaec903 | 2016-02-11 14:05:21 +0000 | [diff] [blame] | 703 | } |
Daniel P. Berrange | 50f6753 | 2016-02-10 17:07:42 +0000 | [diff] [blame] | 704 | |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 705 | default: |
Daniel P. Berrange | 90d6f60 | 2016-09-05 18:02:05 +0100 | [diff] [blame] | 706 | error_setg(errp, "Unsupported cipher algorithm %s", |
Markus Armbruster | 977c736 | 2017-08-24 10:46:08 +0200 | [diff] [blame] | 707 | QCryptoCipherAlgorithm_str(alg)); |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 708 | return NULL; |
Daniel P. Berrange | a5d2f44 | 2016-08-24 16:28:15 +0100 | [diff] [blame] | 709 | } |
| 710 | |
Richard Henderson | 53ddad9 | 2020-08-28 10:05:22 -0700 | [diff] [blame] | 711 | bad_cipher_mode: |
| 712 | error_setg(errp, "Unsupported cipher mode %s", |
| 713 | QCryptoCipherMode_str(mode)); |
Daniel P. Berrange | ed75474 | 2015-07-01 18:10:34 +0100 | [diff] [blame] | 714 | return NULL; |
| 715 | } |