test/srptest.c - third_party/openssl - Git at Google

 /*
  * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the OpenSSL license (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */

 #include <openssl/opensslconf.h>
 #ifdef OPENSSL_NO_SRP

 # include <stdio.h>

 int main(int argc, char *argv[])
 {
     printf("No SRP support\n");
     return (0);
 }

 #else

 # include <openssl/srp.h>
 # include <openssl/rand.h>
 # include <openssl/err.h>

 static void showbn(const char *name, const BIGNUM *bn)
 {
     fputs(name, stdout);
     fputs(" = ", stdout);
     BN_print_fp(stdout, bn);
     putc('\n', stdout);
 }

 # define RANDOM_SIZE 32         /* use 256 bits on each side */

 static int run_srp(const char *username, const char *client_pass,
                    const char *server_pass)
 {
     int ret = -1;
     BIGNUM *s = NULL;
     BIGNUM *v = NULL;
     BIGNUM *a = NULL;
     BIGNUM *b = NULL;
     BIGNUM *u = NULL;
     BIGNUM *x = NULL;
     BIGNUM *Apub = NULL;
     BIGNUM *Bpub = NULL;
     BIGNUM *Kclient = NULL;
     BIGNUM *Kserver = NULL;
     unsigned char rand_tmp[RANDOM_SIZE];
     /* use builtin 1024-bit params */
     const SRP_gN *GN = SRP_get_default_gN("1024");

     if (GN == NULL) {
         fprintf(stderr, "Failed to get SRP parameters\n");
         return -1;
     }
     /* Set up server's password entry */
     if (!SRP_create_verifier_BN(username, server_pass, &s, &v, GN->N, GN->g)) {
         fprintf(stderr, "Failed to create SRP verifier\n");
         return -1;
     }

     showbn("N", GN->N);
     showbn("g", GN->g);
     showbn("Salt", s);
     showbn("Verifier", v);

     /* Server random */
     RAND_bytes(rand_tmp, sizeof(rand_tmp));
     b = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL);
     /* TODO - check b != 0 */
     showbn("b", b);

     /* Server's first message */
     Bpub = SRP_Calc_B(b, GN->N, GN->g, v);
     showbn("B", Bpub);

     if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {
         fprintf(stderr, "Invalid B\n");
         return -1;
     }

     /* Client random */
     RAND_bytes(rand_tmp, sizeof(rand_tmp));
     a = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL);
     /* TODO - check a != 0 */
     showbn("a", a);

     /* Client's response */
     Apub = SRP_Calc_A(a, GN->N, GN->g);
     showbn("A", Apub);

     if (!SRP_Verify_A_mod_N(Apub, GN->N)) {
         fprintf(stderr, "Invalid A\n");
         return -1;
     }

     /* Both sides calculate u */
     u = SRP_Calc_u(Apub, Bpub, GN->N);

     /* Client's key */
     x = SRP_Calc_x(s, username, client_pass);
     Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);
     showbn("Client's key", Kclient);

     /* Server's key */
     Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);
     showbn("Server's key", Kserver);

     if (BN_cmp(Kclient, Kserver) == 0) {
         ret = 0;
     } else {
         fprintf(stderr, "Keys mismatch\n");
         ret = 1;
     }

     BN_clear_free(Kclient);
     BN_clear_free(Kserver);
     BN_clear_free(x);
     BN_free(u);
     BN_free(Apub);
     BN_clear_free(a);
     BN_free(Bpub);
     BN_clear_free(b);
     BN_free(s);
     BN_clear_free(v);

     return ret;
 }

 static int check_bn(const char *name, const BIGNUM *bn, const char *hexbn)
 {
     BIGNUM *tmp = NULL;
     int rv;
     if (BN_hex2bn(&tmp, hexbn) == 0)
         return 0;
     rv = BN_cmp(bn, tmp);
     if (rv == 0) {
         printf("%s = ", name);
         BN_print_fp(stdout, bn);
         printf("\n");
         BN_free(tmp);
         return 1;
     }
     printf("Unexpected %s value\n", name);
     printf("Expecting: ");
     BN_print_fp(stdout, tmp);
     printf("\nReceived: ");
     BN_print_fp(stdout, bn);
     printf("\n");
     BN_free(tmp);
     return 0;
 }

 /* SRP test vectors from RFC5054 */
 static int run_srp_kat(void)
 {
     int ret = 0;
     BIGNUM *s = NULL;
     BIGNUM *v = NULL;
     BIGNUM *a = NULL;
     BIGNUM *b = NULL;
     BIGNUM *u = NULL;
     BIGNUM *x = NULL;
     BIGNUM *Apub = NULL;
     BIGNUM *Bpub = NULL;
     BIGNUM *Kclient = NULL;
     BIGNUM *Kserver = NULL;
     /* use builtin 1024-bit params */
     const SRP_gN *GN = SRP_get_default_gN("1024");

     if (GN == NULL) {
         fprintf(stderr, "Failed to get SRP parameters\n");
         goto err;
     }
     BN_hex2bn(&s, "BEB25379D1A8581EB5A727673A2441EE");
     /* Set up server's password entry */
     if (!SRP_create_verifier_BN("alice", "password123", &s, &v, GN->N,
                                 GN->g)) {
         fprintf(stderr, "Failed to create SRP verifier\n");
         goto err;
     }

     if (!check_bn("v", v,
                  "7E273DE8696FFC4F4E337D05B4B375BEB0DDE1569E8FA00A9886D812"
                  "9BADA1F1822223CA1A605B530E379BA4729FDC59F105B4787E5186F5"
                  "C671085A1447B52A48CF1970B4FB6F8400BBF4CEBFBB168152E08AB5"
                  "EA53D15C1AFF87B2B9DA6E04E058AD51CC72BFC9033B564E26480D78"
                  "E955A5E29E7AB245DB2BE315E2099AFB"))
         goto err;

     /* Server random */
     BN_hex2bn(&b, "E487CB59D31AC550471E81F00F6928E01DDA08E974A004F49E61F5D1"
                   "05284D20");

     /* Server's first message */
     Bpub = SRP_Calc_B(b, GN->N, GN->g, v);

     if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {
         fprintf(stderr, "Invalid B\n");
         goto err;
     }

     if (!check_bn("B", Bpub,
                   "BD0C61512C692C0CB6D041FA01BB152D4916A1E77AF46AE105393011"
                   "BAF38964DC46A0670DD125B95A981652236F99D9B681CBF87837EC99"
                   "6C6DA04453728610D0C6DDB58B318885D7D82C7F8DEB75CE7BD4FBAA"
                   "37089E6F9C6059F388838E7A00030B331EB76840910440B1B27AAEAE"
                   "EB4012B7D7665238A8E3FB004B117B58"))
         goto err;

     /* Client random */
     BN_hex2bn(&a, "60975527035CF2AD1989806F0407210BC81EDC04E2762A56AFD529DD"
                   "DA2D4393");

     /* Client's response */
     Apub = SRP_Calc_A(a, GN->N, GN->g);

     if (!SRP_Verify_A_mod_N(Apub, GN->N)) {
         fprintf(stderr, "Invalid A\n");
         return -1;
     }

     if (!check_bn("A", Apub,
                   "61D5E490F6F1B79547B0704C436F523DD0E560F0C64115BB72557EC4"
                   "4352E8903211C04692272D8B2D1A5358A2CF1B6E0BFCF99F921530EC"
                   "8E39356179EAE45E42BA92AEACED825171E1E8B9AF6D9C03E1327F44"
                   "BE087EF06530E69F66615261EEF54073CA11CF5858F0EDFDFE15EFEA"
                   "B349EF5D76988A3672FAC47B0769447B"))
         goto err;

     /* Both sides calculate u */
     u = SRP_Calc_u(Apub, Bpub, GN->N);

     if (!check_bn("u", u, "CE38B9593487DA98554ED47D70A7AE5F462EF019"))
         goto err;

     /* Client's key */
     x = SRP_Calc_x(s, "alice", "password123");
     Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);
     if (!check_bn("Client's key", Kclient,
                   "B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"
                   "233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"
                   "41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"
                   "3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"
                   "C346D7E474B29EDE8A469FFECA686E5A"))
         goto err;
     /* Server's key */
     Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);
     if (!check_bn("Server's key", Kserver,
                   "B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"
                   "233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"
                   "41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"
                   "3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"
                   "C346D7E474B29EDE8A469FFECA686E5A"))
         goto err;

     ret = 1;

     err:
     BN_clear_free(Kclient);
     BN_clear_free(Kserver);
     BN_clear_free(x);
     BN_free(u);
     BN_free(Apub);
     BN_clear_free(a);
     BN_free(Bpub);
     BN_clear_free(b);
     BN_free(s);
     BN_clear_free(v);

     return ret;
 }

 int main(int argc, char **argv)
 {
     BIO *bio_err;
     bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);

     CRYPTO_set_mem_debug(1);
     CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);


     /* "Negative" test, expect a mismatch */
     if (run_srp("alice", "password1", "password2") == 0) {
         fprintf(stderr, "Mismatched SRP run failed\n");
         return 1;
     }

     /* "Positive" test, should pass */
     if (run_srp("alice", "password", "password") != 0) {
         fprintf(stderr, "Plain SRP run failed\n");
         return 1;
     }

     /* KAT from RFC5054: should pass */
     if (run_srp_kat() != 1) {
         fprintf(stderr, "SRP KAT failed\n");
         return 1;
     }

 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
     if (CRYPTO_mem_leaks(bio_err) <= 0)
         return 1;
 #endif
     BIO_free(bio_err);

     return 0;
 }
 #endif
	/*
	* Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
	*
	* Licensed under the OpenSSL license (the "License"). You may not use
	* this file except in compliance with the License. You can obtain a copy
	* in the file LICENSE in the source distribution or at
	* https://www.openssl.org/source/license.html
	*/

	#include <openssl/opensslconf.h>
	#ifdef OPENSSL_NO_SRP

	# include <stdio.h>

	int main(int argc, char *argv[])
	{
	printf("No SRP support\n");
	return (0);
	}

	#else

	# include <openssl/srp.h>
	# include <openssl/rand.h>
	# include <openssl/err.h>

	static void showbn(const char name, const BIGNUM bn)
	{
	fputs(name, stdout);
	fputs(" = ", stdout);
	BN_print_fp(stdout, bn);
	putc('\n', stdout);
	}

	# define RANDOM_SIZE 32 /* use 256 bits on each side */

	static int run_srp(const char username, const char client_pass,
	const char *server_pass)
	{
	int ret = -1;
	BIGNUM *s = NULL;
	BIGNUM *v = NULL;
	BIGNUM *a = NULL;
	BIGNUM *b = NULL;
	BIGNUM *u = NULL;
	BIGNUM *x = NULL;
	BIGNUM *Apub = NULL;
	BIGNUM *Bpub = NULL;
	BIGNUM *Kclient = NULL;
	BIGNUM *Kserver = NULL;
	unsigned char rand_tmp[RANDOM_SIZE];
	/* use builtin 1024-bit params */
	const SRP_gN *GN = SRP_get_default_gN("1024");

	if (GN == NULL) {
	fprintf(stderr, "Failed to get SRP parameters\n");
	return -1;
	}
	/* Set up server's password entry */
	if (!SRP_create_verifier_BN(username, server_pass, &s, &v, GN->N, GN->g)) {
	fprintf(stderr, "Failed to create SRP verifier\n");
	return -1;
	}

	showbn("N", GN->N);
	showbn("g", GN->g);
	showbn("Salt", s);
	showbn("Verifier", v);

	/* Server random */
	RAND_bytes(rand_tmp, sizeof(rand_tmp));
	b = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL);
	/* TODO - check b != 0 */
	showbn("b", b);

	/* Server's first message */
	Bpub = SRP_Calc_B(b, GN->N, GN->g, v);
	showbn("B", Bpub);

	if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {
	fprintf(stderr, "Invalid B\n");
	return -1;
	}

	/* Client random */
	RAND_bytes(rand_tmp, sizeof(rand_tmp));
	a = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL);
	/* TODO - check a != 0 */
	showbn("a", a);

	/* Client's response */
	Apub = SRP_Calc_A(a, GN->N, GN->g);
	showbn("A", Apub);

	if (!SRP_Verify_A_mod_N(Apub, GN->N)) {
	fprintf(stderr, "Invalid A\n");
	return -1;
	}

	/* Both sides calculate u */
	u = SRP_Calc_u(Apub, Bpub, GN->N);

	/* Client's key */
	x = SRP_Calc_x(s, username, client_pass);
	Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);
	showbn("Client's key", Kclient);

	/* Server's key */
	Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);
	showbn("Server's key", Kserver);

	if (BN_cmp(Kclient, Kserver) == 0) {
	ret = 0;
	} else {
	fprintf(stderr, "Keys mismatch\n");
	ret = 1;
	}

	BN_clear_free(Kclient);
	BN_clear_free(Kserver);
	BN_clear_free(x);
	BN_free(u);
	BN_free(Apub);
	BN_clear_free(a);
	BN_free(Bpub);
	BN_clear_free(b);
	BN_free(s);
	BN_clear_free(v);

	return ret;
	}

	static int check_bn(const char name, const BIGNUM bn, const char *hexbn)
	{
	BIGNUM *tmp = NULL;
	int rv;
	if (BN_hex2bn(&tmp, hexbn) == 0)
	return 0;
	rv = BN_cmp(bn, tmp);
	if (rv == 0) {
	printf("%s = ", name);
	BN_print_fp(stdout, bn);
	printf("\n");
	BN_free(tmp);
	return 1;
	}
	printf("Unexpected %s value\n", name);
	printf("Expecting: ");
	BN_print_fp(stdout, tmp);
	printf("\nReceived: ");
	BN_print_fp(stdout, bn);
	printf("\n");
	BN_free(tmp);
	return 0;
	}

	/* SRP test vectors from RFC5054 */
	static int run_srp_kat(void)
	{
	int ret = 0;
	BIGNUM *s = NULL;
	BIGNUM *v = NULL;
	BIGNUM *a = NULL;
	BIGNUM *b = NULL;
	BIGNUM *u = NULL;
	BIGNUM *x = NULL;
	BIGNUM *Apub = NULL;
	BIGNUM *Bpub = NULL;
	BIGNUM *Kclient = NULL;
	BIGNUM *Kserver = NULL;
	/* use builtin 1024-bit params */
	const SRP_gN *GN = SRP_get_default_gN("1024");

	if (GN == NULL) {
	fprintf(stderr, "Failed to get SRP parameters\n");
	goto err;
	}
	BN_hex2bn(&s, "BEB25379D1A8581EB5A727673A2441EE");
	/* Set up server's password entry */
	if (!SRP_create_verifier_BN("alice", "password123", &s, &v, GN->N,
	GN->g)) {
	fprintf(stderr, "Failed to create SRP verifier\n");
	goto err;
	}

	if (!check_bn("v", v,
	"7E273DE8696FFC4F4E337D05B4B375BEB0DDE1569E8FA00A9886D812"
	"9BADA1F1822223CA1A605B530E379BA4729FDC59F105B4787E5186F5"
	"C671085A1447B52A48CF1970B4FB6F8400BBF4CEBFBB168152E08AB5"
	"EA53D15C1AFF87B2B9DA6E04E058AD51CC72BFC9033B564E26480D78"
	"E955A5E29E7AB245DB2BE315E2099AFB"))
	goto err;

	/* Server random */
	BN_hex2bn(&b, "E487CB59D31AC550471E81F00F6928E01DDA08E974A004F49E61F5D1"
	"05284D20");

	/* Server's first message */
	Bpub = SRP_Calc_B(b, GN->N, GN->g, v);

	if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {
	fprintf(stderr, "Invalid B\n");
	goto err;
	}

	if (!check_bn("B", Bpub,
	"BD0C61512C692C0CB6D041FA01BB152D4916A1E77AF46AE105393011"
	"BAF38964DC46A0670DD125B95A981652236F99D9B681CBF87837EC99"
	"6C6DA04453728610D0C6DDB58B318885D7D82C7F8DEB75CE7BD4FBAA"
	"37089E6F9C6059F388838E7A00030B331EB76840910440B1B27AAEAE"
	"EB4012B7D7665238A8E3FB004B117B58"))
	goto err;

	/* Client random */
	BN_hex2bn(&a, "60975527035CF2AD1989806F0407210BC81EDC04E2762A56AFD529DD"
	"DA2D4393");

	/* Client's response */
	Apub = SRP_Calc_A(a, GN->N, GN->g);

	if (!SRP_Verify_A_mod_N(Apub, GN->N)) {
	fprintf(stderr, "Invalid A\n");
	return -1;
	}

	if (!check_bn("A", Apub,
	"61D5E490F6F1B79547B0704C436F523DD0E560F0C64115BB72557EC4"
	"4352E8903211C04692272D8B2D1A5358A2CF1B6E0BFCF99F921530EC"
	"8E39356179EAE45E42BA92AEACED825171E1E8B9AF6D9C03E1327F44"
	"BE087EF06530E69F66615261EEF54073CA11CF5858F0EDFDFE15EFEA"
	"B349EF5D76988A3672FAC47B0769447B"))
	goto err;

	/* Both sides calculate u */
	u = SRP_Calc_u(Apub, Bpub, GN->N);

	if (!check_bn("u", u, "CE38B9593487DA98554ED47D70A7AE5F462EF019"))
	goto err;

	/* Client's key */
	x = SRP_Calc_x(s, "alice", "password123");
	Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);
	if (!check_bn("Client's key", Kclient,
	"B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"
	"233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"
	"41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"
	"3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"
	"C346D7E474B29EDE8A469FFECA686E5A"))
	goto err;
	/* Server's key */
	Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);
	if (!check_bn("Server's key", Kserver,
	"B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"
	"233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"
	"41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"
	"3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"
	"C346D7E474B29EDE8A469FFECA686E5A"))
	goto err;

	ret = 1;

	err:
	BN_clear_free(Kclient);
	BN_clear_free(Kserver);
	BN_clear_free(x);
	BN_free(u);
	BN_free(Apub);
	BN_clear_free(a);
	BN_free(Bpub);
	BN_clear_free(b);
	BN_free(s);
	BN_clear_free(v);

	return ret;
	}

	int main(int argc, char **argv)
	{
	BIO *bio_err;
	bio_err = BIO_new_fp(stderr, BIO_NOCLOSE \| BIO_FP_TEXT);

	CRYPTO_set_mem_debug(1);
	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);


	/* "Negative" test, expect a mismatch */
	if (run_srp("alice", "password1", "password2") == 0) {
	fprintf(stderr, "Mismatched SRP run failed\n");
	return 1;
	}

	/* "Positive" test, should pass */
	if (run_srp("alice", "password", "password") != 0) {
	fprintf(stderr, "Plain SRP run failed\n");
	return 1;
	}

	/* KAT from RFC5054: should pass */
	if (run_srp_kat() != 1) {
	fprintf(stderr, "SRP KAT failed\n");
	return 1;
	}

	#ifndef OPENSSL_NO_CRYPTO_MDEBUG
	if (CRYPTO_mem_leaks(bio_err) <= 0)
	return 1;
	#endif
	BIO_free(bio_err);

	return 0;
	}
	#endif