/* $OpenBSD: igetest.c,v 1.4 2018/07/17 17:06:49 tb Exp $ */ /* ==================================================================== * Copyright (c) 2006 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. 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. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED 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 OpenSSL PROJECT OR * ITS 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 #define TEST_SIZE 128 #define BIG_TEST_SIZE 10240 static void hexdump(FILE *f,const char *title,const unsigned char *s,int l) { int n=0; fprintf(f,"%s",title); for( ; n < l ; ++n) { if((n%16) == 0) fprintf(f,"\n%04x",n); fprintf(f," %02x",s[n]); } fprintf(f,"\n"); } #define MAX_VECTOR_SIZE 64 struct ige_test { const unsigned char key[16]; const unsigned char iv[32]; const unsigned char in[MAX_VECTOR_SIZE]; const unsigned char out[MAX_VECTOR_SIZE]; const size_t length; const int encrypt; }; static struct ige_test const ige_test_vectors[] = { { { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, /* key */ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f }, /* iv */ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, /* in */ { 0x1a, 0x85, 0x19, 0xa6, 0x55, 0x7b, 0xe6, 0x52, 0xe9, 0xda, 0x8e, 0x43, 0xda, 0x4e, 0xf4, 0x45, 0x3c, 0xf4, 0x56, 0xb4, 0xca, 0x48, 0x8a, 0xa3, 0x83, 0xc7, 0x9c, 0x98, 0xb3, 0x47, 0x97, 0xcb }, /* out */ 32, AES_ENCRYPT }, /* test vector 0 */ { { 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x6e, 0x20, 0x69, 0x6d, 0x70, 0x6c, 0x65 }, /* key */ { 0x6d, 0x65, 0x6e, 0x74, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x6f, 0x66, 0x20, 0x49, 0x47, 0x45, 0x20, 0x6d, 0x6f, 0x64, 0x65, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x4f, 0x70, 0x65, 0x6e, 0x53, 0x53 }, /* iv */ { 0x4c, 0x2e, 0x20, 0x4c, 0x65, 0x74, 0x27, 0x73, 0x20, 0x68, 0x6f, 0x70, 0x65, 0x20, 0x42, 0x65, 0x6e, 0x20, 0x67, 0x6f, 0x74, 0x20, 0x69, 0x74, 0x20, 0x72, 0x69, 0x67, 0x68, 0x74, 0x21, 0x0a }, /* in */ { 0x99, 0x70, 0x64, 0x87, 0xa1, 0xcd, 0xe6, 0x13, 0xbc, 0x6d, 0xe0, 0xb6, 0xf2, 0x4b, 0x1c, 0x7a, 0xa4, 0x48, 0xc8, 0xb9, 0xc3, 0x40, 0x3e, 0x34, 0x67, 0xa8, 0xca, 0xd8, 0x93, 0x40, 0xf5, 0x3b }, /* out */ 32, AES_DECRYPT }, /* test vector 1 */ }; static int run_test_vectors(void) { unsigned int n; int errs = 0; for(n=0 ; n < sizeof(ige_test_vectors)/sizeof(ige_test_vectors[0]) ; ++n) { const struct ige_test * const v = &ige_test_vectors[n]; AES_KEY key; unsigned char buf[MAX_VECTOR_SIZE]; unsigned char iv[AES_BLOCK_SIZE*2]; assert(v->length <= MAX_VECTOR_SIZE); if(v->encrypt == AES_ENCRYPT) AES_set_encrypt_key(v->key, 8*sizeof v->key, &key); else AES_set_decrypt_key(v->key, 8*sizeof v->key, &key); memcpy(iv, v->iv, sizeof iv); AES_ige_encrypt(v->in, buf, v->length, &key, iv, v->encrypt); if(memcmp(v->out, buf, v->length)) { printf("IGE test vector %d failed\n", n); hexdump(stdout, "key", v->key, sizeof v->key); hexdump(stdout, "iv", v->iv, sizeof v->iv); hexdump(stdout, "in", v->in, v->length); hexdump(stdout, "expected", v->out, v->length); hexdump(stdout, "got", buf, v->length); ++errs; } /* try with in == out */ memcpy(iv, v->iv, sizeof iv); memcpy(buf, v->in, v->length); AES_ige_encrypt(buf, buf, v->length, &key, iv, v->encrypt); if(memcmp(v->out, buf, v->length)) { printf("IGE test vector %d failed (with in == out)\n", n); hexdump(stdout, "key", v->key, sizeof v->key); hexdump(stdout, "iv", v->iv, sizeof v->iv); hexdump(stdout, "in", v->in, v->length); hexdump(stdout, "expected", v->out, v->length); hexdump(stdout, "got", buf, v->length); ++errs; } } return errs; } int main(int argc, char **argv) { unsigned char rkey[16]; unsigned char rkey2[16]; AES_KEY key; AES_KEY key2; unsigned char plaintext[BIG_TEST_SIZE]; unsigned char ciphertext[BIG_TEST_SIZE]; unsigned char checktext[BIG_TEST_SIZE]; unsigned char iv[AES_BLOCK_SIZE*4]; unsigned char saved_iv[AES_BLOCK_SIZE*4]; int err = 0; unsigned int n; unsigned matches; assert(BIG_TEST_SIZE >= TEST_SIZE); arc4random_buf(rkey, sizeof(rkey)); arc4random_buf(plaintext, sizeof(plaintext)); arc4random_buf(iv, sizeof(iv)); memcpy(saved_iv, iv, sizeof(saved_iv)); /* Forward IGE only... */ /* Straight encrypt/decrypt */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE, &key, iv, AES_ENCRYPT); AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, iv, AES_DECRYPT); if(memcmp(checktext, plaintext, TEST_SIZE)) { printf("Encrypt+decrypt doesn't match\n"); hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); hexdump(stdout, "Checktext", checktext, TEST_SIZE); ++err; } /* Now check encrypt chaining works */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE/2, &key, iv, AES_ENCRYPT); AES_ige_encrypt(plaintext+TEST_SIZE/2, ciphertext+TEST_SIZE/2, TEST_SIZE/2, &key, iv, AES_ENCRYPT); AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, iv, AES_DECRYPT); if(memcmp(checktext, plaintext, TEST_SIZE)) { printf("Chained encrypt+decrypt doesn't match\n"); hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); hexdump(stdout, "Checktext", checktext, TEST_SIZE); ++err; } /* And check decrypt chaining */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(plaintext, ciphertext, TEST_SIZE/2, &key, iv, AES_ENCRYPT); AES_ige_encrypt(plaintext+TEST_SIZE/2, ciphertext+TEST_SIZE/2, TEST_SIZE/2, &key, iv, AES_ENCRYPT); AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(ciphertext, checktext, TEST_SIZE/2, &key, iv, AES_DECRYPT); AES_ige_encrypt(ciphertext+TEST_SIZE/2, checktext+TEST_SIZE/2, TEST_SIZE/2, &key, iv, AES_DECRYPT); if(memcmp(checktext, plaintext, TEST_SIZE)) { printf("Chained encrypt+chained decrypt doesn't match\n"); hexdump(stdout, "Plaintext", plaintext, TEST_SIZE); hexdump(stdout, "Checktext", checktext, TEST_SIZE); ++err; } /* make sure garble extends forwards only */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, AES_ENCRYPT); /* corrupt halfway through */ ++ciphertext[sizeof ciphertext/2]; AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); memcpy(iv, saved_iv, sizeof iv); AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, AES_DECRYPT); matches=0; for(n=0 ; n < sizeof checktext ; ++n) if(checktext[n] == plaintext[n]) ++matches; if(matches > sizeof checktext/2+sizeof checktext/100) { printf("More than 51%% matches after garbling\n"); ++err; } if(matches < sizeof checktext/2) { printf("Garble extends backwards!\n"); ++err; } /* make sure garble extends both ways */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); AES_set_encrypt_key(rkey2, 8*sizeof rkey2, &key2); AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, AES_ENCRYPT); /* corrupt halfway through */ ++ciphertext[sizeof ciphertext/2]; AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); AES_set_decrypt_key(rkey2, 8*sizeof rkey2, &key2); AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, AES_DECRYPT); matches=0; for(n=0 ; n < sizeof checktext ; ++n) if(checktext[n] == plaintext[n]) ++matches; if(matches > sizeof checktext/100) { printf("More than 1%% matches after bidirectional garbling\n"); ++err; } /* make sure garble extends both ways (2) */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); AES_set_encrypt_key(rkey2, 8*sizeof rkey2, &key2); AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, AES_ENCRYPT); /* corrupt right at the end */ ++ciphertext[sizeof ciphertext-1]; AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); AES_set_decrypt_key(rkey2, 8*sizeof rkey2, &key2); AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, AES_DECRYPT); matches=0; for(n=0 ; n < sizeof checktext ; ++n) if(checktext[n] == plaintext[n]) ++matches; if(matches > sizeof checktext/100) { printf("More than 1%% matches after bidirectional garbling (2)\n"); ++err; } /* make sure garble extends both ways (3) */ AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); AES_set_encrypt_key(rkey2, 8*sizeof rkey2, &key2); AES_ige_encrypt(plaintext, ciphertext, sizeof plaintext, &key, iv, AES_ENCRYPT); /* corrupt right at the start */ ++ciphertext[0]; AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); AES_set_decrypt_key(rkey2, 8*sizeof rkey2, &key2); AES_ige_encrypt(ciphertext, checktext, sizeof checktext, &key, iv, AES_DECRYPT); matches=0; for(n=0 ; n < sizeof checktext ; ++n) if(checktext[n] == plaintext[n]) ++matches; if(matches > sizeof checktext/100) { printf("More than 1%% matches after bidirectional garbling (3)\n"); ++err; } err += run_test_vectors(); return err; }