tests/test-crypto-cipher.c

   1 /*
   2  * QEMU Crypto cipher 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
   9  * version 2 of the License, or (at your option) any later version.
  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
  21 #include "qemu/osdep.h"
  22
  23 #include "crypto/init.h"
  24 #include "crypto/cipher.h"
  25 #include "qapi/error.h"
  26
  27 typedef struct QCryptoCipherTestData QCryptoCipherTestData;
  28 struct QCryptoCipherTestData {
  29     const char *path;
  30     QCryptoCipherAlgorithm alg;
  31     QCryptoCipherMode mode;
  32     const char *key;
  33     const char *plaintext;
  34     const char *ciphertext;
  35     const char *iv;
  36 };
  37
  38 /* AES test data comes from appendix F of:
  39  *
  40  * http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
  41  */
  42 static QCryptoCipherTestData test_data[] = {
  43     {
  44         /* NIST F.1.1 ECB-AES128.Encrypt */
  45         .path = "/crypto/cipher/aes-ecb-128",
  46         .alg = QCRYPTO_CIPHER_ALG_AES_128,
  47         .mode = QCRYPTO_CIPHER_MODE_ECB,
  48         .key = "2b7e151628aed2a6abf7158809cf4f3c",
  49         .plaintext =
  50             "6bc1bee22e409f96e93d7e117393172a"
  51             "ae2d8a571e03ac9c9eb76fac45af8e51"
  52             "30c81c46a35ce411e5fbc1191a0a52ef"
  53             "f69f2445df4f9b17ad2b417be66c3710",
  54         .ciphertext =
  55             "3ad77bb40d7a3660a89ecaf32466ef97"
  56             "f5d3d58503b9699de785895a96fdbaaf"
  57             "43b1cd7f598ece23881b00e3ed030688"
  58             "7b0c785e27e8ad3f8223207104725dd4"
  59     },
  60     {
  61         /* NIST F.1.3 ECB-AES192.Encrypt */
  62         .path = "/crypto/cipher/aes-ecb-192",
  63         .alg = QCRYPTO_CIPHER_ALG_AES_192,
  64         .mode = QCRYPTO_CIPHER_MODE_ECB,
  65         .key = "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b",
  66         .plaintext  =
  67             "6bc1bee22e409f96e93d7e117393172a"
  68             "ae2d8a571e03ac9c9eb76fac45af8e51"
  69             "30c81c46a35ce411e5fbc1191a0a52ef"
  70             "f69f2445df4f9b17ad2b417be66c3710",
  71         .ciphertext =
  72             "bd334f1d6e45f25ff712a214571fa5cc"
  73             "974104846d0ad3ad7734ecb3ecee4eef"
  74             "ef7afd2270e2e60adce0ba2face6444e"
  75             "9a4b41ba738d6c72fb16691603c18e0e"
  76     },
  77     {
  78         /* NIST F.1.5 ECB-AES256.Encrypt */
  79         .path = "/crypto/cipher/aes-ecb-256",
  80         .alg = QCRYPTO_CIPHER_ALG_AES_256,
  81         .mode = QCRYPTO_CIPHER_MODE_ECB,
  82         .key =
  83             "603deb1015ca71be2b73aef0857d7781"
  84             "1f352c073b6108d72d9810a30914dff4",
  85         .plaintext  =
  86             "6bc1bee22e409f96e93d7e117393172a"
  87             "ae2d8a571e03ac9c9eb76fac45af8e51"
  88             "30c81c46a35ce411e5fbc1191a0a52ef"
  89             "f69f2445df4f9b17ad2b417be66c3710",
  90         .ciphertext =
  91             "f3eed1bdb5d2a03c064b5a7e3db181f8"
  92             "591ccb10d410ed26dc5ba74a31362870"
  93             "b6ed21b99ca6f4f9f153e7b1beafed1d"
  94             "23304b7a39f9f3ff067d8d8f9e24ecc7",
  95     },
  96     {
  97         /* NIST F.2.1 CBC-AES128.Encrypt */
  98         .path = "/crypto/cipher/aes-cbc-128",
  99         .alg = QCRYPTO_CIPHER_ALG_AES_128,
 100         .mode = QCRYPTO_CIPHER_MODE_CBC,
 101         .key = "2b7e151628aed2a6abf7158809cf4f3c",
 102         .iv = "000102030405060708090a0b0c0d0e0f",
 103         .plaintext  =
 104             "6bc1bee22e409f96e93d7e117393172a"
 105             "ae2d8a571e03ac9c9eb76fac45af8e51"
 106             "30c81c46a35ce411e5fbc1191a0a52ef"
 107             "f69f2445df4f9b17ad2b417be66c3710",
 108         .ciphertext =
 109             "7649abac8119b246cee98e9b12e9197d"
 110             "5086cb9b507219ee95db113a917678b2"
 111             "73bed6b8e3c1743b7116e69e22229516"
 112             "3ff1caa1681fac09120eca307586e1a7",
 113     },
 114     {
 115         /* NIST F.2.3 CBC-AES128.Encrypt */
 116         .path = "/crypto/cipher/aes-cbc-192",
 117         .alg = QCRYPTO_CIPHER_ALG_AES_192,
 118         .mode = QCRYPTO_CIPHER_MODE_CBC,
 119         .key = "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b",
 120         .iv = "000102030405060708090a0b0c0d0e0f",
 121         .plaintext  =
 122             "6bc1bee22e409f96e93d7e117393172a"
 123             "ae2d8a571e03ac9c9eb76fac45af8e51"
 124             "30c81c46a35ce411e5fbc1191a0a52ef"
 125             "f69f2445df4f9b17ad2b417be66c3710",
 126         .ciphertext =
 127             "4f021db243bc633d7178183a9fa071e8"
 128             "b4d9ada9ad7dedf4e5e738763f69145a"
 129             "571b242012fb7ae07fa9baac3df102e0"
 130             "08b0e27988598881d920a9e64f5615cd",
 131     },
 132     {
 133         /* NIST F.2.5 CBC-AES128.Encrypt */
 134         .path = "/crypto/cipher/aes-cbc-256",
 135         .alg = QCRYPTO_CIPHER_ALG_AES_256,
 136         .mode = QCRYPTO_CIPHER_MODE_CBC,
 137         .key =
 138             "603deb1015ca71be2b73aef0857d7781"
 139             "1f352c073b6108d72d9810a30914dff4",
 140         .iv = "000102030405060708090a0b0c0d0e0f",
 141         .plaintext  =
 142             "6bc1bee22e409f96e93d7e117393172a"
 143             "ae2d8a571e03ac9c9eb76fac45af8e51"
 144             "30c81c46a35ce411e5fbc1191a0a52ef"
 145             "f69f2445df4f9b17ad2b417be66c3710",
 146         .ciphertext =
 147             "f58c4c04d6e5f1ba779eabfb5f7bfbd6"
 148             "9cfc4e967edb808d679f777bc6702c7d"
 149             "39f23369a9d9bacfa530e26304231461"
 150             "b2eb05e2c39be9fcda6c19078c6a9d1b",
 151     },
 152     {
 153         .path = "/crypto/cipher/des-rfb-ecb-56",
 154         .alg = QCRYPTO_CIPHER_ALG_DES_RFB,
 155         .mode = QCRYPTO_CIPHER_MODE_ECB,
 156         .key = "0123456789abcdef",
 157         .plaintext =
 158             "6bc1bee22e409f96e93d7e117393172a"
 159             "ae2d8a571e03ac9c9eb76fac45af8e51"
 160             "30c81c46a35ce411e5fbc1191a0a52ef"
 161             "f69f2445df4f9b17ad2b417be66c3710",
 162         .ciphertext =
 163             "8f346aaf64eaf24040720d80648c52e7"
 164             "aefc616be53ab1a3d301e69d91e01838"
 165             "ffd29f1bb5596ad94ea2d8e6196b7f09"
 166             "30d8ed0bf2773af36dd82a6280c20926",
 167     },
 168     {
 169         /* RFC 2144, Appendix B.1 */
 170         .path = "/crypto/cipher/cast5-128",
 171         .alg = QCRYPTO_CIPHER_ALG_CAST5_128,
 172         .mode = QCRYPTO_CIPHER_MODE_ECB,
 173         .key = "0123456712345678234567893456789A",
 174         .plaintext = "0123456789abcdef",
 175         .ciphertext = "238b4fe5847e44b2",
 176     },
 177     {
 178         /* libgcrypt serpent.c */
 179         .path = "/crypto/cipher/serpent-128",
 180         .alg = QCRYPTO_CIPHER_ALG_SERPENT_128,
 181         .mode = QCRYPTO_CIPHER_MODE_ECB,
 182         .key = "00000000000000000000000000000000",
 183         .plaintext = "d29d576fcea3a3a7ed9099f29273d78e",
 184         .ciphertext = "b2288b968ae8b08648d1ce9606fd992d",
 185     },
 186     {
 187         /* libgcrypt serpent.c */
 188         .path = "/crypto/cipher/serpent-192",
 189         .alg = QCRYPTO_CIPHER_ALG_SERPENT_192,
 190         .mode = QCRYPTO_CIPHER_MODE_ECB,
 191         .key = "00000000000000000000000000000000"
 192                "0000000000000000",
 193         .plaintext = "d29d576fceaba3a7ed9899f2927bd78e",
 194         .ciphertext = "130e353e1037c22405e8faefb2c3c3e9",
 195     },
 196     {
 197         /* libgcrypt serpent.c */
 198         .path = "/crypto/cipher/serpent-256a",
 199         .alg = QCRYPTO_CIPHER_ALG_SERPENT_256,
 200         .mode = QCRYPTO_CIPHER_MODE_ECB,
 201         .key = "00000000000000000000000000000000"
 202                "00000000000000000000000000000000",
 203         .plaintext = "d095576fcea3e3a7ed98d9f29073d78e",
 204         .ciphertext = "b90ee5862de69168f2bdd5125b45472b",
 205     },
 206     {
 207         /* libgcrypt serpent.c */
 208         .path = "/crypto/cipher/serpent-256b",
 209         .alg = QCRYPTO_CIPHER_ALG_SERPENT_256,
 210         .mode = QCRYPTO_CIPHER_MODE_ECB,
 211         .key = "00000000000000000000000000000000"
 212                "00000000000000000000000000000000",
 213         .plaintext = "00000000010000000200000003000000",
 214         .ciphertext = "2061a42782bd52ec691ec383b03ba77c",
 215     },
 216     {
 217         /* Twofish paper "Known Answer Test" */
 218         .path = "/crypto/cipher/twofish-128",
 219         .alg = QCRYPTO_CIPHER_ALG_TWOFISH_128,
 220         .mode = QCRYPTO_CIPHER_MODE_ECB,
 221         .key = "d491db16e7b1c39e86cb086b789f5419",
 222         .plaintext = "019f9809de1711858faac3a3ba20fbc3",
 223         .ciphertext = "6363977de839486297e661c6c9d668eb",
 224     },
 225     {
 226         /* Twofish paper "Known Answer Test", I=3 */
 227         .path = "/crypto/cipher/twofish-192",
 228         .alg = QCRYPTO_CIPHER_ALG_TWOFISH_192,
 229         .mode = QCRYPTO_CIPHER_MODE_ECB,
 230         .key = "88b2b2706b105e36b446bb6d731a1e88"
 231                "efa71f788965bd44",
 232         .plaintext = "39da69d6ba4997d585b6dc073ca341b2",
 233         .ciphertext = "182b02d81497ea45f9daacdc29193a65",
 234     },
 235     {
 236         /* Twofish paper "Known Answer Test", I=4 */
 237         .path = "/crypto/cipher/twofish-256",
 238         .alg = QCRYPTO_CIPHER_ALG_TWOFISH_256,
 239         .mode = QCRYPTO_CIPHER_MODE_ECB,
 240         .key = "d43bb7556ea32e46f2a282b7d45b4e0d"
 241                "57ff739d4dc92c1bd7fc01700cc8216f",
 242         .plaintext = "90afe91bb288544f2c32dc239b2635e6",
 243         .ciphertext = "6cb4561c40bf0a9705931cb6d408e7fa",
 244     },
 245     {
 246         /* #1 32 byte key, 32 byte PTX */
 247         .path = "/crypto/cipher/aes-xts-128-1",
 248         .alg = QCRYPTO_CIPHER_ALG_AES_128,
 249         .mode = QCRYPTO_CIPHER_MODE_XTS,
 250         .key =
 251             "00000000000000000000000000000000"
 252             "00000000000000000000000000000000",
 253         .iv =
 254             "00000000000000000000000000000000",
 255         .plaintext =
 256             "00000000000000000000000000000000"
 257             "00000000000000000000000000000000",
 258         .ciphertext =
 259             "917cf69ebd68b2ec9b9fe9a3eadda692"
 260             "cd43d2f59598ed858c02c2652fbf922e",
 261     },
 262     {
 263         /* #2, 32 byte key, 32 byte PTX */
 264         .path = "/crypto/cipher/aes-xts-128-2",
 265         .alg = QCRYPTO_CIPHER_ALG_AES_128,
 266         .mode = QCRYPTO_CIPHER_MODE_XTS,
 267         .key =
 268             "11111111111111111111111111111111"
 269             "22222222222222222222222222222222",
 270         .iv =
 271             "33333333330000000000000000000000",
 272         .plaintext =
 273             "44444444444444444444444444444444"
 274             "44444444444444444444444444444444",
 275         .ciphertext =
 276             "c454185e6a16936e39334038acef838b"
 277             "fb186fff7480adc4289382ecd6d394f0",
 278     },
 279     {
 280         /* #5 from xts.7, 32 byte key, 32 byte PTX */
 281         .path = "/crypto/cipher/aes-xts-128-3",
 282         .alg = QCRYPTO_CIPHER_ALG_AES_128,
 283         .mode = QCRYPTO_CIPHER_MODE_XTS,
 284         .key =
 285             "fffefdfcfbfaf9f8f7f6f5f4f3f2f1f0"
 286             "bfbebdbcbbbab9b8b7b6b5b4b3b2b1b0",
 287         .iv =
 288             "9a785634120000000000000000000000",
 289         .plaintext =
 290             "44444444444444444444444444444444"
 291             "44444444444444444444444444444444",
 292         .ciphertext =
 293             "b01f86f8edc1863706fa8a4253e34f28"
 294             "af319de38334870f4dd1f94cbe9832f1",
 295     },
 296     {
 297         /* #4, 32 byte key, 512 byte PTX  */
 298         .path = "/crypto/cipher/aes-xts-128-4",
 299         .alg = QCRYPTO_CIPHER_ALG_AES_128,
 300         .mode = QCRYPTO_CIPHER_MODE_XTS,
 301         .key =
 302             "27182818284590452353602874713526"
 303             "31415926535897932384626433832795",
 304         .iv =
 305             "00000000000000000000000000000000",
 306         .plaintext =
 307             "000102030405060708090a0b0c0d0e0f"
 308             "101112131415161718191a1b1c1d1e1f"
 309             "202122232425262728292a2b2c2d2e2f"
 310             "303132333435363738393a3b3c3d3e3f"
 311             "404142434445464748494a4b4c4d4e4f"
 312             "505152535455565758595a5b5c5d5e5f"
 313             "606162636465666768696a6b6c6d6e6f"
 314             "707172737475767778797a7b7c7d7e7f"
 315             "808182838485868788898a8b8c8d8e8f"
 316             "909192939495969798999a9b9c9d9e9f"
 317             "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf"
 318             "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
 319             "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
 320             "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
 321             "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
 322             "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff"
 323             "000102030405060708090a0b0c0d0e0f"
 324             "101112131415161718191a1b1c1d1e1f"
 325             "202122232425262728292a2b2c2d2e2f"
 326             "303132333435363738393a3b3c3d3e3f"
 327             "404142434445464748494a4b4c4d4e4f"
 328             "505152535455565758595a5b5c5d5e5f"
 329             "606162636465666768696a6b6c6d6e6f"
 330             "707172737475767778797a7b7c7d7e7f"
 331             "808182838485868788898a8b8c8d8e8f"
 332             "909192939495969798999a9b9c9d9e9f"
 333             "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf"
 334             "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
 335             "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
 336             "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
 337             "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
 338             "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
 339         .ciphertext =
 340             "27a7479befa1d476489f308cd4cfa6e2"
 341             "a96e4bbe3208ff25287dd3819616e89c"
 342             "c78cf7f5e543445f8333d8fa7f560000"
 343             "05279fa5d8b5e4ad40e736ddb4d35412"
 344             "328063fd2aab53e5ea1e0a9f332500a5"
 345             "df9487d07a5c92cc512c8866c7e860ce"
 346             "93fdf166a24912b422976146ae20ce84"
 347             "6bb7dc9ba94a767aaef20c0d61ad0265"
 348             "5ea92dc4c4e41a8952c651d33174be51"
 349             "a10c421110e6d81588ede82103a252d8"
 350             "a750e8768defffed9122810aaeb99f91"
 351             "72af82b604dc4b8e51bcb08235a6f434"
 352             "1332e4ca60482a4ba1a03b3e65008fc5"
 353             "da76b70bf1690db4eae29c5f1badd03c"
 354             "5ccf2a55d705ddcd86d449511ceb7ec3"
 355             "0bf12b1fa35b913f9f747a8afd1b130e"
 356             "94bff94effd01a91735ca1726acd0b19"
 357             "7c4e5b03393697e126826fb6bbde8ecc"
 358             "1e08298516e2c9ed03ff3c1b7860f6de"
 359             "76d4cecd94c8119855ef5297ca67e9f3"
 360             "e7ff72b1e99785ca0a7e7720c5b36dc6"
 361             "d72cac9574c8cbbc2f801e23e56fd344"
 362             "b07f22154beba0f08ce8891e643ed995"
 363             "c94d9a69c9f1b5f499027a78572aeebd"
 364             "74d20cc39881c213ee770b1010e4bea7"
 365             "18846977ae119f7a023ab58cca0ad752"
 366             "afe656bb3c17256a9f6e9bf19fdd5a38"
 367             "fc82bbe872c5539edb609ef4f79c203e"
 368             "bb140f2e583cb2ad15b4aa5b655016a8"
 369             "449277dbd477ef2c8d6c017db738b18d"
 370             "eb4a427d1923ce3ff262735779a418f2"
 371             "0a282df920147beabe421ee5319d0568",
 372     },
 373 };
 374
 375
 376 static inline int unhex(char c)
 377 {
 378     if (c >= 'a' && c <= 'f') {
 379         return 10 + (c - 'a');
 380     }
 381     if (c >= 'A' && c <= 'F') {
 382         return 10 + (c - 'A');
 383     }
 384     return c - '0';
 385 }
 386
 387 static inline char hex(int i)
 388 {
 389     if (i < 10) {
 390         return '0' + i;
 391     }
 392     return 'a' + (i - 10);
 393 }
 394
 395 static size_t unhex_string(const char *hexstr,
 396                            uint8_t **data)
 397 {
 398     size_t len;
 399     size_t i;
 400
 401     if (!hexstr) {
 402         *data = NULL;
 403         return 0;
 404     }
 405
 406     len = strlen(hexstr);
 407     *data = g_new0(uint8_t, len / 2);
 408
 409     for (i = 0; i < len; i += 2) {
 410         (*data)[i/2] = (unhex(hexstr[i]) << 4) | unhex(hexstr[i+1]);
 411     }
 412     return len / 2;
 413 }
 414
 415 static char *hex_string(const uint8_t *bytes,
 416                         size_t len)
 417 {
 418     char *hexstr = g_new0(char, len * 2 + 1);
 419     size_t i;
 420
 421     for (i = 0; i < len; i++) {
 422         hexstr[i*2] = hex((bytes[i] >> 4) & 0xf);
 423         hexstr[i*2+1] = hex(bytes[i] & 0xf);
 424     }
 425     hexstr[len*2] = '\0';
 426
 427     return hexstr;
 428 }
 429
 430 static void test_cipher(const void *opaque)
 431 {
 432     const QCryptoCipherTestData *data = opaque;
 433
 434     QCryptoCipher *cipher;
 435     uint8_t *key, *iv, *ciphertext, *plaintext, *outtext;
 436     size_t nkey, niv, nciphertext, nplaintext;
 437     char *outtexthex;
 438     size_t ivsize, keysize, blocksize;
 439
 440     nkey = unhex_string(data->key, &key);
 441     niv = unhex_string(data->iv, &iv);
 442     nciphertext = unhex_string(data->ciphertext, &ciphertext);
 443     nplaintext = unhex_string(data->plaintext, &plaintext);
 444
 445     g_assert(nciphertext == nplaintext);
 446
 447     outtext = g_new0(uint8_t, nciphertext);
 448
 449     cipher = qcrypto_cipher_new(
 450         data->alg, data->mode,
 451         key, nkey,
 452         &error_abort);
 453     g_assert(cipher != NULL);
 454
 455     keysize = qcrypto_cipher_get_key_len(data->alg);
 456     blocksize = qcrypto_cipher_get_block_len(data->alg);
 457     ivsize = qcrypto_cipher_get_iv_len(data->alg, data->mode);
 458
 459     if (data->mode == QCRYPTO_CIPHER_MODE_XTS) {
 460         g_assert_cmpint(keysize * 2, ==, nkey);
 461     } else {
 462         g_assert_cmpint(keysize, ==, nkey);
 463     }
 464     g_assert_cmpint(ivsize, ==, niv);
 465     if (niv) {
 466         g_assert_cmpint(blocksize, ==, niv);
 467     }
 468
 469     if (iv) {
 470         g_assert(qcrypto_cipher_setiv(cipher,
 471                                       iv, niv,
 472                                       &error_abort) == 0);
 473     }
 474     g_assert(qcrypto_cipher_encrypt(cipher,
 475                                     plaintext,
 476                                     outtext,
 477                                     nplaintext,
 478                                     &error_abort) == 0);
 479
 480     outtexthex = hex_string(outtext, nciphertext);
 481
 482     g_assert_cmpstr(outtexthex, ==, data->ciphertext);
 483
 484     g_free(outtexthex);
 485
 486     if (iv) {
 487         g_assert(qcrypto_cipher_setiv(cipher,
 488                                       iv, niv,
 489                                       &error_abort) == 0);
 490     }
 491     g_assert(qcrypto_cipher_decrypt(cipher,
 492                                     ciphertext,
 493                                     outtext,
 494                                     nplaintext,
 495                                     &error_abort) == 0);
 496
 497     outtexthex = hex_string(outtext, nplaintext);
 498
 499     g_assert_cmpstr(outtexthex, ==, data->plaintext);
 500
 501     g_free(outtext);
 502     g_free(outtexthex);
 503     g_free(key);
 504     g_free(iv);
 505     g_free(ciphertext);
 506     g_free(plaintext);
 507     qcrypto_cipher_free(cipher);
 508 }
 509
 510
 511 static void test_cipher_null_iv(void)
 512 {
 513     QCryptoCipher *cipher;
 514     uint8_t key[32] = { 0 };
 515     uint8_t plaintext[32] = { 0 };
 516     uint8_t ciphertext[32] = { 0 };
 517
 518     cipher = qcrypto_cipher_new(
 519         QCRYPTO_CIPHER_ALG_AES_256,
 520         QCRYPTO_CIPHER_MODE_CBC,
 521         key, sizeof(key),
 522         &error_abort);
 523     g_assert(cipher != NULL);
 524
 525     /* Don't call qcrypto_cipher_setiv */
 526
 527     qcrypto_cipher_encrypt(cipher,
 528                            plaintext,
 529                            ciphertext,
 530                            sizeof(plaintext),
 531                            &error_abort);
 532
 533     qcrypto_cipher_free(cipher);
 534 }
 535
 536 static void test_cipher_short_plaintext(void)
 537 {
 538     Error *err = NULL;
 539     QCryptoCipher *cipher;
 540     uint8_t key[32] = { 0 };
 541     uint8_t plaintext1[20] = { 0 };
 542     uint8_t ciphertext1[20] = { 0 };
 543     uint8_t plaintext2[40] = { 0 };
 544     uint8_t ciphertext2[40] = { 0 };
 545     int ret;
 546
 547     cipher = qcrypto_cipher_new(
 548         QCRYPTO_CIPHER_ALG_AES_256,
 549         QCRYPTO_CIPHER_MODE_CBC,
 550         key, sizeof(key),
 551         &error_abort);
 552     g_assert(cipher != NULL);
 553
 554     /* Should report an error as plaintext is shorter
 555      * than block size
 556      */
 557     ret = qcrypto_cipher_encrypt(cipher,
 558                                  plaintext1,
 559                                  ciphertext1,
 560                                  sizeof(plaintext1),
 561                                  &err);
 562     g_assert(ret == -1);
 563     g_assert(err != NULL);
 564
 565     error_free(err);
 566     err = NULL;
 567
 568     /* Should report an error as plaintext is larger than
 569      * block size, but not a multiple of block size
 570      */
 571     ret = qcrypto_cipher_encrypt(cipher,
 572                                  plaintext2,
 573                                  ciphertext2,
 574                                  sizeof(plaintext2),
 575                                  &err);
 576     g_assert(ret == -1);
 577     g_assert(err != NULL);
 578
 579     error_free(err);
 580     qcrypto_cipher_free(cipher);
 581 }
 582
 583 int main(int argc, char **argv)
 584 {
 585     size_t i;
 586
 587     g_test_init(&argc, &argv, NULL);
 588
 589     g_assert(qcrypto_init(NULL) == 0);
 590
 591     for (i = 0; i < G_N_ELEMENTS(test_data); i++) {
 592         if (qcrypto_cipher_supports(test_data[i].alg)) {
 593             g_test_add_data_func(test_data[i].path, &test_data[i], test_cipher);
 594         }
 595     }
 596
 597     g_test_add_func("/crypto/cipher/null-iv",
 598                     test_cipher_null_iv);
 599
 600     g_test_add_func("/crypto/cipher/short-plaintext",
 601                     test_cipher_short_plaintext);
 602
 603     return g_test_run();
 604 }