| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| * All rights reserved. |
| * |
| * This package is an SSL implementation written |
| * by Eric Young (eay@cryptsoft.com). |
| * The implementation was written so as to conform with Netscapes SSL. |
| * |
| * This library is free for commercial and non-commercial use as long as |
| * the following conditions are aheared to. The following conditions |
| * apply to all code found in this distribution, be it the RC4, RSA, |
| * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| * included with this distribution is covered by the same copyright terms |
| * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| * |
| * Copyright remains Eric Young's, and as such any Copyright notices in |
| * the code are not to be removed. |
| * If this package is used in a product, Eric Young should be given attribution |
| * as the author of the parts of the library used. |
| * This can be in the form of a textual message at program startup or |
| * in documentation (online or textual) provided with the package. |
| * |
| * 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 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 acknowledgement: |
| * "This product includes cryptographic software written by |
| * Eric Young (eay@cryptsoft.com)" |
| * The word 'cryptographic' can be left out if the rouines from the library |
| * being used are not cryptographic related :-). |
| * 4. If you include any Windows specific code (or a derivative thereof) from |
| * the apps directory (application code) you must include an acknowledgement: |
| * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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. |
| * |
| * The licence and distribution terms for any publically available version or |
| * derivative of this code cannot be changed. i.e. this code cannot simply be |
| * copied and put under another distribution licence |
| * [including the GNU Public Licence.] |
| * |
| * The DSS routines are based on patches supplied by |
| * Steven Schoch <schoch@sheba.arc.nasa.gov>. */ |
| |
| #include <openssl/dsa.h> |
| |
| #include <string.h> |
| |
| #include <openssl/bn.h> |
| #include <openssl/crypto.h> |
| #include <openssl/err.h> |
| |
| #include "internal.h" |
| |
| |
| static int dsa_cb(int p, int n, BN_GENCB *arg); |
| |
| /* The following values are taken from the updated Appendix 5 to FIPS PUB 186 |
| * and also appear in Appendix 5 to FIPS PUB 186-1. */ |
| |
| static const uint8_t seed[20] = { |
| 0xd5, 0x01, 0x4e, 0x4b, 0x60, 0xef, 0x2b, 0xa8, 0xb6, 0x21, 0x1b, |
| 0x40, 0x62, 0xba, 0x32, 0x24, 0xe0, 0x42, 0x7d, 0xd3, |
| }; |
| |
| static const uint8_t fips_p[] = { |
| 0x8d, 0xf2, 0xa4, 0x94, 0x49, 0x22, 0x76, 0xaa, 0x3d, 0x25, 0x75, |
| 0x9b, 0xb0, 0x68, 0x69, 0xcb, 0xea, 0xc0, 0xd8, 0x3a, 0xfb, 0x8d, |
| 0x0c, 0xf7, 0xcb, 0xb8, 0x32, 0x4f, 0x0d, 0x78, 0x82, 0xe5, 0xd0, |
| 0x76, 0x2f, 0xc5, 0xb7, 0x21, 0x0e, 0xaf, 0xc2, 0xe9, 0xad, 0xac, |
| 0x32, 0xab, 0x7a, 0xac, 0x49, 0x69, 0x3d, 0xfb, 0xf8, 0x37, 0x24, |
| 0xc2, 0xec, 0x07, 0x36, 0xee, 0x31, 0xc8, 0x02, 0x91, |
| }; |
| |
| static const uint8_t fips_q[] = { |
| 0xc7, 0x73, 0x21, 0x8c, 0x73, 0x7e, 0xc8, 0xee, 0x99, 0x3b, 0x4f, |
| 0x2d, 0xed, 0x30, 0xf4, 0x8e, 0xda, 0xce, 0x91, 0x5f, |
| }; |
| |
| static const uint8_t fips_g[] = { |
| 0x62, 0x6d, 0x02, 0x78, 0x39, 0xea, 0x0a, 0x13, 0x41, 0x31, 0x63, |
| 0xa5, 0x5b, 0x4c, 0xb5, 0x00, 0x29, 0x9d, 0x55, 0x22, 0x95, 0x6c, |
| 0xef, 0xcb, 0x3b, 0xff, 0x10, 0xf3, 0x99, 0xce, 0x2c, 0x2e, 0x71, |
| 0xcb, 0x9d, 0xe5, 0xfa, 0x24, 0xba, 0xbf, 0x58, 0xe5, 0xb7, 0x95, |
| 0x21, 0x92, 0x5c, 0x9c, 0xc4, 0x2e, 0x9f, 0x6f, 0x46, 0x4b, 0x08, |
| 0x8c, 0xc5, 0x72, 0xaf, 0x53, 0xe6, 0xd7, 0x88, 0x02, |
| }; |
| |
| static const uint8_t fips_x[] = { |
| 0x20, 0x70, 0xb3, 0x22, 0x3d, 0xba, 0x37, 0x2f, 0xde, 0x1c, 0x0f, |
| 0xfc, 0x7b, 0x2e, 0x3b, 0x49, 0x8b, 0x26, 0x06, 0x14, |
| }; |
| |
| static const uint8_t fips_y[] = { |
| 0x19, 0x13, 0x18, 0x71, 0xd7, 0x5b, 0x16, 0x12, 0xa8, 0x19, 0xf2, |
| 0x9d, 0x78, 0xd1, 0xb0, 0xd7, 0x34, 0x6f, 0x7a, 0xa7, 0x7b, 0xb6, |
| 0x2a, 0x85, 0x9b, 0xfd, 0x6c, 0x56, 0x75, 0xda, 0x9d, 0x21, 0x2d, |
| 0x3a, 0x36, 0xef, 0x16, 0x72, 0xef, 0x66, 0x0b, 0x8c, 0x7c, 0x25, |
| 0x5c, 0xc0, 0xec, 0x74, 0x85, 0x8f, 0xba, 0x33, 0xf4, 0x4c, 0x06, |
| 0x69, 0x96, 0x30, 0xa7, 0x6b, 0x03, 0x0e, 0xe3, 0x33, |
| }; |
| |
| static const uint8_t fips_digest[] = { |
| 0xa9, 0x99, 0x3e, 0x36, 0x47, 0x06, 0x81, 0x6a, 0xba, 0x3e, 0x25, |
| 0x71, 0x78, 0x50, 0xc2, 0x6c, 0x9c, 0xd0, 0xd8, 0x9d, |
| }; |
| |
| /* fips_sig is a DER-encoded version of the r and s values in FIPS PUB 186-1. */ |
| static const uint8_t fips_sig[] = { |
| 0x30, 0x2d, 0x02, 0x15, 0x00, 0x8b, 0xac, 0x1a, 0xb6, 0x64, 0x10, |
| 0x43, 0x5c, 0xb7, 0x18, 0x1f, 0x95, 0xb1, 0x6a, 0xb9, 0x7c, 0x92, |
| 0xb3, 0x41, 0xc0, 0x02, 0x14, 0x41, 0xe2, 0x34, 0x5f, 0x1f, 0x56, |
| 0xdf, 0x24, 0x58, 0xf4, 0x26, 0xd1, 0x55, 0xb4, 0xba, 0x2d, 0xb6, |
| 0xdc, 0xd8, 0xc8, |
| }; |
| |
| /* fips_sig_negative is fips_sig with r encoded as a negative number. */ |
| static const uint8_t fips_sig_negative[] = { |
| 0x30, 0x2c, 0x02, 0x14, 0x8b, 0xac, 0x1a, 0xb6, 0x64, 0x10, 0x43, |
| 0x5c, 0xb7, 0x18, 0x1f, 0x95, 0xb1, 0x6a, 0xb9, 0x7c, 0x92, 0xb3, |
| 0x41, 0xc0, 0x02, 0x14, 0x41, 0xe2, 0x34, 0x5f, 0x1f, 0x56, 0xdf, |
| 0x24, 0x58, 0xf4, 0x26, 0xd1, 0x55, 0xb4, 0xba, 0x2d, 0xb6, 0xdc, |
| 0xd8, 0xc8, |
| }; |
| |
| /* fip_sig_extra is fips_sig with trailing data. */ |
| static const uint8_t fips_sig_extra[] = { |
| 0x30, 0x2d, 0x02, 0x15, 0x00, 0x8b, 0xac, 0x1a, 0xb6, 0x64, 0x10, |
| 0x43, 0x5c, 0xb7, 0x18, 0x1f, 0x95, 0xb1, 0x6a, 0xb9, 0x7c, 0x92, |
| 0xb3, 0x41, 0xc0, 0x02, 0x14, 0x41, 0xe2, 0x34, 0x5f, 0x1f, 0x56, |
| 0xdf, 0x24, 0x58, 0xf4, 0x26, 0xd1, 0x55, 0xb4, 0xba, 0x2d, 0xb6, |
| 0xdc, 0xd8, 0xc8, 0x00, |
| }; |
| |
| /* fips_sig_lengths is fips_sig with a non-minimally encoded length. */ |
| static const uint8_t fips_sig_bad_length[] = { |
| 0x30, 0x81, 0x2d, 0x02, 0x15, 0x00, 0x8b, 0xac, 0x1a, 0xb6, 0x64, |
| 0x10, 0x43, 0x5c, 0xb7, 0x18, 0x1f, 0x95, 0xb1, 0x6a, 0xb9, 0x7c, |
| 0x92, 0xb3, 0x41, 0xc0, 0x02, 0x14, 0x41, 0xe2, 0x34, 0x5f, 0x1f, |
| 0x56, 0xdf, 0x24, 0x58, 0xf4, 0x26, 0xd1, 0x55, 0xb4, 0xba, 0x2d, |
| 0xb6, 0xdc, 0xd8, 0xc8, 0x00, |
| }; |
| |
| /* fips_sig_bad_r is fips_sig with a bad r value. */ |
| static const uint8_t fips_sig_bad_r[] = { |
| 0x30, 0x2d, 0x02, 0x15, 0x00, 0x8c, 0xac, 0x1a, 0xb6, 0x64, 0x10, |
| 0x43, 0x5c, 0xb7, 0x18, 0x1f, 0x95, 0xb1, 0x6a, 0xb9, 0x7c, 0x92, |
| 0xb3, 0x41, 0xc0, 0x02, 0x14, 0x41, 0xe2, 0x34, 0x5f, 0x1f, 0x56, |
| 0xdf, 0x24, 0x58, 0xf4, 0x26, 0xd1, 0x55, 0xb4, 0xba, 0x2d, 0xb6, |
| 0xdc, 0xd8, 0xc8, |
| }; |
| |
| static DSA *get_fips_dsa(void) { |
| DSA *dsa = DSA_new(); |
| if (!dsa) { |
| return NULL; |
| } |
| dsa->p = BN_bin2bn(fips_p, sizeof(fips_p), NULL); |
| dsa->q = BN_bin2bn(fips_q, sizeof(fips_q), NULL); |
| dsa->g = BN_bin2bn(fips_g, sizeof(fips_g), NULL); |
| dsa->pub_key = BN_bin2bn(fips_y, sizeof(fips_y), NULL); |
| dsa->priv_key = BN_bin2bn(fips_x, sizeof(fips_x), NULL); |
| if (dsa->p == NULL || dsa->q == NULL || dsa->g == NULL || |
| dsa->pub_key == NULL || dsa->priv_key == NULL) { |
| DSA_free(dsa); |
| return NULL; |
| } |
| return dsa; |
| } |
| |
| static int test_generate(FILE *out) { |
| BN_GENCB cb; |
| DSA *dsa = NULL; |
| int counter, ok = 0, i, j; |
| uint8_t buf[256]; |
| unsigned long h; |
| uint8_t sig[256]; |
| unsigned int siglen; |
| |
| fprintf(out, "test generation of DSA parameters\n"); |
| |
| BN_GENCB_set(&cb, dsa_cb, out); |
| dsa = DSA_new(); |
| if (dsa == NULL || |
| !DSA_generate_parameters_ex(dsa, 512, seed, 20, &counter, &h, &cb)) { |
| goto end; |
| } |
| |
| fprintf(out, "seed\n"); |
| for (i = 0; i < 20; i += 4) { |
| fprintf(out, "%02X%02X%02X%02X ", seed[i], seed[i + 1], seed[i + 2], |
| seed[i + 3]); |
| } |
| fprintf(out, "\ncounter=%d h=%ld\n", counter, h); |
| |
| if (counter != 105) { |
| fprintf(stderr, "counter should be 105\n"); |
| goto end; |
| } |
| if (h != 2) { |
| fprintf(stderr, "h should be 2\n"); |
| goto end; |
| } |
| |
| i = BN_bn2bin(dsa->q, buf); |
| j = sizeof(fips_q); |
| if (i != j || memcmp(buf, fips_q, i) != 0) { |
| fprintf(stderr, "q value is wrong\n"); |
| goto end; |
| } |
| |
| i = BN_bn2bin(dsa->p, buf); |
| j = sizeof(fips_p); |
| if (i != j || memcmp(buf, fips_p, i) != 0) { |
| fprintf(stderr, "p value is wrong\n"); |
| goto end; |
| } |
| |
| i = BN_bn2bin(dsa->g, buf); |
| j = sizeof(fips_g); |
| if (i != j || memcmp(buf, fips_g, i) != 0) { |
| fprintf(stderr, "g value is wrong\n"); |
| goto end; |
| } |
| |
| if (!DSA_generate_key(dsa) || |
| !DSA_sign(0, fips_digest, sizeof(fips_digest), sig, &siglen, dsa)) { |
| goto end; |
| } |
| if (DSA_verify(0, fips_digest, sizeof(fips_digest), sig, siglen, dsa) == 1) { |
| ok = 1; |
| } else { |
| fprintf(stderr, "verification failure\n"); |
| } |
| |
| end: |
| DSA_free(dsa); |
| |
| return ok; |
| } |
| |
| static int test_verify(const uint8_t *sig, size_t sig_len, int expect) { |
| int ok = 0; |
| DSA *dsa = get_fips_dsa(); |
| if (dsa == NULL) { |
| goto end; |
| } |
| |
| int ret = DSA_verify(0, fips_digest, sizeof(fips_digest), sig, sig_len, dsa); |
| if (ret != expect) { |
| fprintf(stderr, "DSA_verify returned %d, want %d\n", ret, expect); |
| goto end; |
| } |
| ok = 1; |
| /* Clear any errorrs from a test with expected failure. */ |
| ERR_clear_error(); |
| |
| end: |
| DSA_free(dsa); |
| |
| return ok; |
| } |
| |
| int main(int argc, char **argv) { |
| CRYPTO_library_init(); |
| |
| if (!test_generate(stdout) || |
| !test_verify(fips_sig, sizeof(fips_sig), 1) || |
| !test_verify(fips_sig_negative, sizeof(fips_sig_negative), -1) || |
| !test_verify(fips_sig_extra, sizeof(fips_sig_extra), -1) || |
| !test_verify(fips_sig_bad_length, sizeof(fips_sig_bad_length), -1) || |
| !test_verify(fips_sig_bad_r, sizeof(fips_sig_bad_r), 0)) { |
| ERR_print_errors_fp(stderr); |
| return 1; |
| } |
| |
| printf("PASS\n"); |
| return 0; |
| } |
| |
| static int dsa_cb(int p, int n, BN_GENCB *arg) { |
| char c = '*'; |
| static int ok = 0, num = 0; |
| |
| switch (p) { |
| case 0: |
| c = '.'; |
| num++; |
| break; |
| case 1: |
| c = '+'; |
| break; |
| case 2: |
| c = '*'; |
| ok++; |
| break; |
| case 3: |
| c = '\n'; |
| } |
| |
| fputc(c, arg->arg); |
| fflush(arg->arg); |
| |
| if (!ok && p == 0 && num > 1) { |
| fprintf(stderr, "error in dsatest\n"); |
| return 0; |
| } |
| |
| return 1; |
| } |