X-Git-Url: https://code.wpia.club/?a=blobdiff_plain;f=lib%2Fopenssl%2Ftest%2Figetest.c;fp=lib%2Fopenssl%2Ftest%2Figetest.c;h=1ba900244ded184f5b6ae371462f0d89e63f433a;hb=9ff1530871deeb0f7eaa35ca0db6630724045e4a;hp=0000000000000000000000000000000000000000;hpb=25b73076b01ae059da1a2e9a1677e00788ada620;p=cassiopeia.git diff --git a/lib/openssl/test/igetest.c b/lib/openssl/test/igetest.c new file mode 100644 index 0000000..1ba9002 --- /dev/null +++ b/lib/openssl/test/igetest.c @@ -0,0 +1,503 @@ +/* test/igetest.c -*- mode:C; c-file-style: "eay" -*- */ +/* ==================================================================== + * 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 */ +}; + +struct bi_ige_test + { + const unsigned char key1[32]; + const unsigned char key2[32]; + const unsigned char iv[64]; + const unsigned char in[MAX_VECTOR_SIZE]; + const unsigned char out[MAX_VECTOR_SIZE]; + const size_t keysize; + const size_t length; + const int encrypt; + }; + +static struct bi_ige_test const bi_ige_test_vectors[] = { +{ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f }, /* key1 */ + { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, + 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f }, /* key2 */ + { 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, + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, + 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, + 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f }, /* 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 */ + { 0x14, 0x40, 0x6f, 0xae, 0xa2, 0x79, 0xf2, 0x56, + 0x1f, 0x86, 0xeb, 0x3b, 0x7d, 0xff, 0x53, 0xdc, + 0x4e, 0x27, 0x0c, 0x03, 0xde, 0x7c, 0xe5, 0x16, + 0x6a, 0x9c, 0x20, 0x33, 0x9d, 0x33, 0xfe, 0x12 }, /* out */ + 16, 32, AES_ENCRYPT }, /* test vector 0 */ +{ { 0x58, 0x0a, 0x06, 0xe9, 0x97, 0x07, 0x59, 0x5c, + 0x9e, 0x19, 0xd2, 0xa7, 0xbb, 0x40, 0x2b, 0x7a, + 0xc7, 0xd8, 0x11, 0x9e, 0x4c, 0x51, 0x35, 0x75, + 0x64, 0x28, 0x0f, 0x23, 0xad, 0x74, 0xac, 0x37 }, /* key1 */ + { 0xd1, 0x80, 0xa0, 0x31, 0x47, 0xa3, 0x11, 0x13, + 0x86, 0x26, 0x9e, 0x6d, 0xff, 0xaf, 0x72, 0x74, + 0x5b, 0xa2, 0x35, 0x81, 0xd2, 0xa6, 0x3d, 0x21, + 0x67, 0x7b, 0x58, 0xa8, 0x18, 0xf9, 0x72, 0xe4 }, /* key2 */ + { 0x80, 0x3d, 0xbd, 0x4c, 0xe6, 0x7b, 0x06, 0xa9, + 0x53, 0x35, 0xd5, 0x7e, 0x71, 0xc1, 0x70, 0x70, + 0x74, 0x9a, 0x00, 0x28, 0x0c, 0xbf, 0x6c, 0x42, + 0x9b, 0xa4, 0xdd, 0x65, 0x11, 0x77, 0x7c, 0x67, + 0xfe, 0x76, 0x0a, 0xf0, 0xd5, 0xc6, 0x6e, 0x6a, + 0xe7, 0x5e, 0x4c, 0xf2, 0x7e, 0x9e, 0xf9, 0x20, + 0x0e, 0x54, 0x6f, 0x2d, 0x8a, 0x8d, 0x7e, 0xbd, + 0x48, 0x79, 0x37, 0x99, 0xff, 0x27, 0x93, 0xa3 }, /* iv */ + { 0xf1, 0x54, 0x3d, 0xca, 0xfe, 0xb5, 0xef, 0x1c, + 0x4f, 0xa6, 0x43, 0xf6, 0xe6, 0x48, 0x57, 0xf0, + 0xee, 0x15, 0x7f, 0xe3, 0xe7, 0x2f, 0xd0, 0x2f, + 0x11, 0x95, 0x7a, 0x17, 0x00, 0xab, 0xa7, 0x0b, + 0xbe, 0x44, 0x09, 0x9c, 0xcd, 0xac, 0xa8, 0x52, + 0xa1, 0x8e, 0x7b, 0x75, 0xbc, 0xa4, 0x92, 0x5a, + 0xab, 0x46, 0xd3, 0x3a, 0xa0, 0xd5, 0x35, 0x1c, + 0x55, 0xa4, 0xb3, 0xa8, 0x40, 0x81, 0xa5, 0x0b}, /* in */ + { 0x42, 0xe5, 0x28, 0x30, 0x31, 0xc2, 0xa0, 0x23, + 0x68, 0x49, 0x4e, 0xb3, 0x24, 0x59, 0x92, 0x79, + 0xc1, 0xa5, 0xcc, 0xe6, 0x76, 0x53, 0xb1, 0xcf, + 0x20, 0x86, 0x23, 0xe8, 0x72, 0x55, 0x99, 0x92, + 0x0d, 0x16, 0x1c, 0x5a, 0x2f, 0xce, 0xcb, 0x51, + 0xe2, 0x67, 0xfa, 0x10, 0xec, 0xcd, 0x3d, 0x67, + 0xa5, 0xe6, 0xf7, 0x31, 0x26, 0xb0, 0x0d, 0x76, + 0x5e, 0x28, 0xdc, 0x7f, 0x01, 0xc5, 0xa5, 0x4c}, /* out */ + 32, 64, AES_ENCRYPT }, /* 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; + } + } + + for(n=0 ; n < sizeof(bi_ige_test_vectors)/sizeof(bi_ige_test_vectors[0]) + ; ++n) + { + const struct bi_ige_test * const v = &bi_ige_test_vectors[n]; + AES_KEY key1; + AES_KEY key2; + unsigned char buf[MAX_VECTOR_SIZE]; + + assert(v->length <= MAX_VECTOR_SIZE); + + if(v->encrypt == AES_ENCRYPT) + { + AES_set_encrypt_key(v->key1, 8*v->keysize, &key1); + AES_set_encrypt_key(v->key2, 8*v->keysize, &key2); + } + else + { + AES_set_decrypt_key(v->key1, 8*v->keysize, &key1); + AES_set_decrypt_key(v->key2, 8*v->keysize, &key2); + } + + AES_bi_ige_encrypt(v->in, buf, v->length, &key1, &key2, v->iv, + v->encrypt); + + if(memcmp(v->out, buf, v->length)) + { + printf("Bidirectional IGE test vector %d failed\n", n); + hexdump(stdout, "key 1", v->key1, sizeof v->key1); + hexdump(stdout, "key 2", v->key2, sizeof v->key2); + 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); + + RAND_pseudo_bytes(rkey, sizeof rkey); + RAND_pseudo_bytes(plaintext, sizeof plaintext); + RAND_pseudo_bytes(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; + } + + /* Bi-directional IGE */ + + /* Note that we don't have to recover the IV, because chaining isn't */ + /* possible with biIGE, so the IV is not updated. */ + + RAND_pseudo_bytes(rkey2, sizeof rkey2); + + /* Straight encrypt/decrypt */ + AES_set_encrypt_key(rkey, 8*sizeof rkey, &key); + AES_set_encrypt_key(rkey2, 8*sizeof rkey2, &key2); + AES_bi_ige_encrypt(plaintext, ciphertext, TEST_SIZE, &key, &key2, iv, + AES_ENCRYPT); + + AES_set_decrypt_key(rkey, 8*sizeof rkey, &key); + AES_set_decrypt_key(rkey2, 8*sizeof rkey2, &key2); + AES_bi_ige_encrypt(ciphertext, checktext, TEST_SIZE, &key, &key2, 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; + } + + /* 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; + }