/* * test-aes-key-wrap.c * ------------------- * Test code for AES Key Wrap. * * Authors: Rob Austein * Copyright (c) 2015, NORDUnet A/S * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of the NORDUnet nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #ifndef TC_BUFSIZE #define TC_BUFSIZE 4096 #endif /* * Test cases from RFC 5649 all use a 192-bit key, which our AES * implementation doesn't support, so had to write our own. */ static const uint8_t Q[] = { /* Plaintext, 81 bytes */ 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x20, 0x20, 0x4d, 0x79, 0x20, 0x6e, 0x61, 0x6d, 0x65, 0x20, 0x69, 0x73, 0x20, 0x49, 0x6e, 0x69, 0x67, 0x6f, 0x20, 0x4d, 0x6f, 0x6e, 0x74, 0x6f, 0x79, 0x61, 0x2e, 0x20, 0x20, 0x59, 0x6f, 0x75, 0x20, 0x62, 0x72, 0x6f, 0x6b, 0x65, 0x20, 0x6d, 0x79, 0x20, 0x41, 0x45, 0x53, 0x20, 0x6b, 0x65, 0x79, 0x20, 0x77, 0x72, 0x61, 0x70, 0x70, 0x65, 0x72, 0x2e, 0x20, 0x20, 0x50, 0x72, 0x65, 0x70, 0x61, 0x72, 0x65, 0x20, 0x74, 0x6f, 0x20, 0x64, 0x69, 0x65, 0x2e }; static const uint8_t K_128[] = { /* 128-bit KEK, 16 bytes */ 0xbc, 0x2a, 0xd8, 0x90, 0xd8, 0x91, 0x10, 0x65, 0xf0, 0x42, 0x10, 0x1b, 0x4a, 0x6b, 0xaf, 0x99 }; static const uint8_t K_256[] = { /* 256-bit KEK, 32 bytes */ 0xe3, 0x97, 0x52, 0x81, 0x2b, 0x7e, 0xc2, 0xa4, 0x6a, 0xac, 0x50, 0x18, 0x0d, 0x10, 0xc6, 0x85, 0x2c, 0xcf, 0x86, 0x0a, 0xa9, 0x4f, 0x69, 0xab, 0x16, 0xa6, 0x4f, 0x3e, 0x96, 0xa0, 0xbd, 0x9e }; static const uint8_t C_128[] = { /* Plaintext wrapped by 128-bit KEK, 96 bytes */ 0xb0, 0x10, 0x91, 0x7b, 0xe7, 0x67, 0x9c, 0x10, 0x16, 0x64, 0xe7, 0x73, 0xd2, 0x68, 0xba, 0xed, 0x8c, 0x50, 0x49, 0x80, 0x16, 0x2f, 0x4e, 0x97, 0xe8, 0x45, 0x5c, 0x2f, 0x2b, 0x7a, 0x88, 0x0e, 0xd8, 0xef, 0xaa, 0x40, 0xb0, 0x2e, 0xb4, 0x50, 0xe7, 0x60, 0xf7, 0xbb, 0xed, 0x56, 0x79, 0x16, 0x65, 0xb7, 0x13, 0x9b, 0x4c, 0x66, 0x86, 0x5f, 0x4d, 0x53, 0x2d, 0xcd, 0x83, 0x41, 0x01, 0x35, 0x0d, 0x06, 0x39, 0x4e, 0x9e, 0xfe, 0x68, 0xc5, 0x2f, 0x37, 0x33, 0x99, 0xbb, 0x88, 0xf7, 0x76, 0x1e, 0x82, 0x48, 0xd6, 0xa2, 0xf3, 0x9b, 0x92, 0x01, 0x65, 0xcb, 0x48, 0x36, 0xf5, 0x42, 0xd3 }; static const uint8_t C_256[] = { /* Plaintext wrapped by 256-bit KEK, 96 bytes */ 0x08, 0x00, 0xbc, 0x1b, 0x35, 0xe4, 0x2a, 0x69, 0x3f, 0x43, 0x07, 0x54, 0x31, 0xba, 0xb6, 0x89, 0x7c, 0x64, 0x9f, 0x03, 0x84, 0xc4, 0x4a, 0x71, 0xdb, 0xcb, 0xae, 0x55, 0x30, 0xdf, 0xb0, 0x2b, 0xc3, 0x91, 0x5d, 0x07, 0xa9, 0x24, 0xdb, 0xe7, 0xbe, 0x4d, 0x0d, 0x62, 0xd4, 0xf8, 0xb1, 0x94, 0xf1, 0xb9, 0x22, 0xb5, 0x94, 0xab, 0x7e, 0x0b, 0x15, 0x6a, 0xd9, 0x5f, 0x6c, 0x20, 0xb7, 0x7e, 0x13, 0x19, 0xfa, 0xc4, 0x70, 0xec, 0x0d, 0xbd, 0xf7, 0x01, 0xc6, 0xb3, 0x9a, 0x19, 0xaf, 0xf2, 0x47, 0x68, 0xea, 0x7e, 0x97, 0x7e, 0x52, 0x2e, 0xd4, 0x03, 0x31, 0xcb, 0x22, 0xb6, 0xfe, 0xf5 }; static const char *format_hex(const uint8_t *bin, const size_t len, char *hex, const size_t max) { size_t i; assert(bin != NULL && hex != NULL && len * 3 < max); if (len == 0) return ""; for (i = 0; i < len; i++) sprintf(hex + 3 * i, "%02x:", bin[i]); hex[len * 3 - 1] = '\0'; return hex; } static int run_test(hal_core_t *core, const uint8_t * const K, const size_t K_len, const uint8_t * const C, const size_t C_len) { const size_t Q_len = sizeof(Q); uint8_t q[TC_BUFSIZE], c[TC_BUFSIZE]; size_t q_len = sizeof(q), c_len = sizeof(c); char h1[TC_BUFSIZE * 3 + 1], h2[TC_BUFSIZE * 3 + 1]; hal_error_t err; int ok1 = 1, ok2 = 1; /* * Wrap and compare results. */ printf("Wrapping with %lu-bit KEK...\n", (unsigned long) K_len * 8); if ((err = hal_aes_keywrap(core, K, K_len, Q, Q_len, c, &c_len)) != HAL_OK) { printf("Couldn't wrap with %lu-bit KEK: %s\n", (unsigned long) K_len * 8, hal_error_string(err)); ok1 = 0; } else if (C_len != c_len || memcmp(C, c, C_len) != 0) { printf("Ciphertext mismatch:\n Want: %s\n Got: %s\n", format_hex(C, C_len, h1, sizeof(h1)), format_hex(c, c_len, h2, sizeof(h2))); ok1 = 0; } else { printf("OK\n"); } /* * Unwrap and compare results. */ printf("Unwrapping with %lu-bit KEK...\n", (unsigned long) K_len * 8); if ((err = hal_aes_keyunwrap(core, K, K_len, C, C_len, q, &q_len)) != HAL_OK) { printf("Couldn't unwrap with %lu-bit KEK: %s\n", (unsigned long) K_len * 8, hal_error_string(err)); ok2 = 0; } else if (Q_len != q_len || memcmp(Q, q, Q_len) != 0) { printf("Plaintext mismatch:\n Want: %s\n Got: %s\n", format_hex(Q, Q_len, h1, sizeof(h1)), format_hex(q, q_len, h2, sizeof(h2))); ok2 = 0; } else { printf("OK\n"); } return ok1 && ok2; } int main (int argc, char *argv[]) { int failures = 0; printf("Testing whether AES core reports present..."); hal_core_t *core = hal_core_find(AES_CORE_NAME, NULL); if (core == NULL) { printf("no, skipping keywrap tests\n"); } else { printf("yes\n"); if (!run_test(core, K_128, sizeof(K_128), C_128, sizeof(C_128))) failures++; if (!run_test(core, K_256, sizeof(K_256), C_256, sizeof(C_256))) failures++; } return failures; } /* * "Any programmer who fails to comply with the standard naming, formatting, * or commenting conventions should be shot. If it so happens that it is * inconvenient to shoot him, then he is to be politely requested to recode * his program in adherence to the above standard." * -- Michael Spier, Digital Equipment Corporation * * Local variables: * indent-tabs-mode: nil * End: */ 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133