--- /dev/null
+/* 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 <stdio.h>
+#include <string.h>
+
+#include <gtest/gtest.h>
+
+#include <openssl/bn.h>
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+
+#include "../internal.h"
+
+
+// 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 bssl::UniquePtr<DSA> GetFIPSDSA(void) {
+ bssl::UniquePtr<DSA> dsa(DSA_new());
+ if (!dsa) {
+ return nullptr;
+ }
+ dsa->p = BN_bin2bn(fips_p, sizeof(fips_p), nullptr);
+ dsa->q = BN_bin2bn(fips_q, sizeof(fips_q), nullptr);
+ dsa->g = BN_bin2bn(fips_g, sizeof(fips_g), nullptr);
+ dsa->pub_key = BN_bin2bn(fips_y, sizeof(fips_y), nullptr);
+ dsa->priv_key = BN_bin2bn(fips_x, sizeof(fips_x), nullptr);
+ if (dsa->p == nullptr || dsa->q == nullptr || dsa->g == nullptr ||
+ dsa->pub_key == nullptr || dsa->priv_key == nullptr) {
+ return nullptr;
+ }
+ return dsa;
+}
+
+struct GenerateContext {
+ FILE *out = nullptr;
+ int ok = 0;
+ int num = 0;
+};
+
+static int GenerateCallback(int p, int n, BN_GENCB *arg) {
+ GenerateContext *ctx = reinterpret_cast<GenerateContext *>(arg->arg);
+ char c = '*';
+ switch (p) {
+ case 0:
+ c = '.';
+ ctx->num++;
+ break;
+ case 1:
+ c = '+';
+ break;
+ case 2:
+ c = '*';
+ ctx->ok++;
+ break;
+ case 3:
+ c = '\n';
+ }
+ fputc(c, ctx->out);
+ fflush(ctx->out);
+ if (!ctx->ok && p == 0 && ctx->num > 1) {
+ fprintf(stderr, "error in dsatest\n");
+ return 0;
+ }
+ return 1;
+}
+
+static int TestGenerate(FILE *out) {
+ BN_GENCB cb;
+ int counter, i, j;
+ uint8_t buf[256];
+ unsigned long h;
+ uint8_t sig[256];
+ unsigned int siglen;
+
+ fprintf(out, "test generation of DSA parameters\n");
+
+ GenerateContext ctx;
+ ctx.out = out;
+ BN_GENCB_set(&cb, GenerateCallback, &ctx);
+ bssl::UniquePtr<DSA> dsa(DSA_new());
+ if (!dsa ||
+ !DSA_generate_parameters_ex(dsa.get(), 512, seed, 20, &counter, &h,
+ &cb)) {
+ return false;
+ }
+
+ 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");
+ return false;
+ }
+ if (h != 2) {
+ fprintf(stderr, "h should be 2\n");
+ return false;
+ }
+
+ i = BN_bn2bin(dsa->q, buf);
+ j = sizeof(fips_q);
+ if (i != j || OPENSSL_memcmp(buf, fips_q, i) != 0) {
+ fprintf(stderr, "q value is wrong\n");
+ return false;
+ }
+
+ i = BN_bn2bin(dsa->p, buf);
+ j = sizeof(fips_p);
+ if (i != j || OPENSSL_memcmp(buf, fips_p, i) != 0) {
+ fprintf(stderr, "p value is wrong\n");
+ return false;
+ }
+
+ i = BN_bn2bin(dsa->g, buf);
+ j = sizeof(fips_g);
+ if (i != j || OPENSSL_memcmp(buf, fips_g, i) != 0) {
+ fprintf(stderr, "g value is wrong\n");
+ return false;
+ }
+
+ if (!DSA_generate_key(dsa.get()) ||
+ !DSA_sign(0, fips_digest, sizeof(fips_digest), sig, &siglen, dsa.get())) {
+ return false;
+ }
+ if (DSA_verify(0, fips_digest, sizeof(fips_digest), sig, siglen, dsa.get()) !=
+ 1) {
+ fprintf(stderr, "verification failure\n");
+ return false;
+ }
+
+ return true;
+}
+
+static bool TestVerify(const uint8_t *sig, size_t sig_len, int expect) {
+ bssl::UniquePtr<DSA> dsa = GetFIPSDSA();
+ if (!dsa) {
+ return false;
+ }
+
+ int ret =
+ DSA_verify(0, fips_digest, sizeof(fips_digest), sig, sig_len, dsa.get());
+ if (ret != expect) {
+ fprintf(stderr, "DSA_verify returned %d, want %d\n", ret, expect);
+ return false;
+ }
+
+ // Clear any errors from a test with expected failure.
+ ERR_clear_error();
+ return true;
+}
+
+// TODO(davidben): Convert this file to GTest properly.
+TEST(DSATest, AllTests) {
+ if (!TestGenerate(stdout) ||
+ !TestVerify(fips_sig, sizeof(fips_sig), 1) ||
+ !TestVerify(fips_sig_negative, sizeof(fips_sig_negative), -1) ||
+ !TestVerify(fips_sig_extra, sizeof(fips_sig_extra), -1) ||
+ !TestVerify(fips_sig_bad_length, sizeof(fips_sig_bad_length), -1) ||
+ !TestVerify(fips_sig_bad_r, sizeof(fips_sig_bad_r), 0)) {
+ ADD_FAILURE() << "Tests failed";
+ }
+}
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