2 * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #include <openssl/opensslconf.h>
15 int main(int argc, char *argv[])
17 printf("No SRP support\n");
23 # include <openssl/srp.h>
24 # include <openssl/rand.h>
25 # include <openssl/err.h>
27 static void showbn(const char *name, const BIGNUM *bn)
31 BN_print_fp(stdout, bn);
35 # define RANDOM_SIZE 32 /* use 256 bits on each side */
37 static int run_srp(const char *username, const char *client_pass,
38 const char *server_pass)
49 BIGNUM *Kclient = NULL;
50 BIGNUM *Kserver = NULL;
51 unsigned char rand_tmp[RANDOM_SIZE];
52 /* use builtin 1024-bit params */
53 const SRP_gN *GN = SRP_get_default_gN("1024");
56 fprintf(stderr, "Failed to get SRP parameters\n");
59 /* Set up server's password entry */
60 if (!SRP_create_verifier_BN(username, server_pass, &s, &v, GN->N, GN->g)) {
61 fprintf(stderr, "Failed to create SRP verifier\n");
68 showbn("Verifier", v);
71 RAND_bytes(rand_tmp, sizeof(rand_tmp));
72 b = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL);
73 /* TODO - check b != 0 */
76 /* Server's first message */
77 Bpub = SRP_Calc_B(b, GN->N, GN->g, v);
80 if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {
81 fprintf(stderr, "Invalid B\n");
86 RAND_bytes(rand_tmp, sizeof(rand_tmp));
87 a = BN_bin2bn(rand_tmp, sizeof(rand_tmp), NULL);
88 /* TODO - check a != 0 */
91 /* Client's response */
92 Apub = SRP_Calc_A(a, GN->N, GN->g);
95 if (!SRP_Verify_A_mod_N(Apub, GN->N)) {
96 fprintf(stderr, "Invalid A\n");
100 /* Both sides calculate u */
101 u = SRP_Calc_u(Apub, Bpub, GN->N);
104 x = SRP_Calc_x(s, username, client_pass);
105 Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);
106 showbn("Client's key", Kclient);
109 Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);
110 showbn("Server's key", Kserver);
112 if (BN_cmp(Kclient, Kserver) == 0) {
115 fprintf(stderr, "Keys mismatch\n");
119 BN_clear_free(Kclient);
120 BN_clear_free(Kserver);
133 static int check_bn(const char *name, const BIGNUM *bn, const char *hexbn)
137 if (BN_hex2bn(&tmp, hexbn) == 0)
139 rv = BN_cmp(bn, tmp);
141 printf("%s = ", name);
142 BN_print_fp(stdout, bn);
147 printf("Unexpected %s value\n", name);
148 printf("Expecting: ");
149 BN_print_fp(stdout, tmp);
150 printf("\nReceived: ");
151 BN_print_fp(stdout, bn);
157 /* SRP test vectors from RFC5054 */
158 static int run_srp_kat(void)
169 BIGNUM *Kclient = NULL;
170 BIGNUM *Kserver = NULL;
171 /* use builtin 1024-bit params */
172 const SRP_gN *GN = SRP_get_default_gN("1024");
175 fprintf(stderr, "Failed to get SRP parameters\n");
178 BN_hex2bn(&s, "BEB25379D1A8581EB5A727673A2441EE");
179 /* Set up server's password entry */
180 if (!SRP_create_verifier_BN("alice", "password123", &s, &v, GN->N,
182 fprintf(stderr, "Failed to create SRP verifier\n");
186 if (!check_bn("v", v,
187 "7E273DE8696FFC4F4E337D05B4B375BEB0DDE1569E8FA00A9886D812"
188 "9BADA1F1822223CA1A605B530E379BA4729FDC59F105B4787E5186F5"
189 "C671085A1447B52A48CF1970B4FB6F8400BBF4CEBFBB168152E08AB5"
190 "EA53D15C1AFF87B2B9DA6E04E058AD51CC72BFC9033B564E26480D78"
191 "E955A5E29E7AB245DB2BE315E2099AFB"))
195 BN_hex2bn(&b, "E487CB59D31AC550471E81F00F6928E01DDA08E974A004F49E61F5D1"
198 /* Server's first message */
199 Bpub = SRP_Calc_B(b, GN->N, GN->g, v);
201 if (!SRP_Verify_B_mod_N(Bpub, GN->N)) {
202 fprintf(stderr, "Invalid B\n");
206 if (!check_bn("B", Bpub,
207 "BD0C61512C692C0CB6D041FA01BB152D4916A1E77AF46AE105393011"
208 "BAF38964DC46A0670DD125B95A981652236F99D9B681CBF87837EC99"
209 "6C6DA04453728610D0C6DDB58B318885D7D82C7F8DEB75CE7BD4FBAA"
210 "37089E6F9C6059F388838E7A00030B331EB76840910440B1B27AAEAE"
211 "EB4012B7D7665238A8E3FB004B117B58"))
215 BN_hex2bn(&a, "60975527035CF2AD1989806F0407210BC81EDC04E2762A56AFD529DD"
218 /* Client's response */
219 Apub = SRP_Calc_A(a, GN->N, GN->g);
221 if (!SRP_Verify_A_mod_N(Apub, GN->N)) {
222 fprintf(stderr, "Invalid A\n");
226 if (!check_bn("A", Apub,
227 "61D5E490F6F1B79547B0704C436F523DD0E560F0C64115BB72557EC4"
228 "4352E8903211C04692272D8B2D1A5358A2CF1B6E0BFCF99F921530EC"
229 "8E39356179EAE45E42BA92AEACED825171E1E8B9AF6D9C03E1327F44"
230 "BE087EF06530E69F66615261EEF54073CA11CF5858F0EDFDFE15EFEA"
231 "B349EF5D76988A3672FAC47B0769447B"))
234 /* Both sides calculate u */
235 u = SRP_Calc_u(Apub, Bpub, GN->N);
237 if (!check_bn("u", u, "CE38B9593487DA98554ED47D70A7AE5F462EF019"))
241 x = SRP_Calc_x(s, "alice", "password123");
242 Kclient = SRP_Calc_client_key(GN->N, Bpub, GN->g, x, a, u);
243 if (!check_bn("Client's key", Kclient,
244 "B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"
245 "233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"
246 "41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"
247 "3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"
248 "C346D7E474B29EDE8A469FFECA686E5A"))
251 Kserver = SRP_Calc_server_key(Apub, v, u, b, GN->N);
252 if (!check_bn("Server's key", Kserver,
253 "B0DC82BABCF30674AE450C0287745E7990A3381F63B387AAF271A10D"
254 "233861E359B48220F7C4693C9AE12B0A6F67809F0876E2D013800D6C"
255 "41BB59B6D5979B5C00A172B4A2A5903A0BDCAF8A709585EB2AFAFA8F"
256 "3499B200210DCC1F10EB33943CD67FC88A2F39A4BE5BEC4EC0A3212D"
257 "C346D7E474B29EDE8A469FFECA686E5A"))
263 BN_clear_free(Kclient);
264 BN_clear_free(Kserver);
277 int main(int argc, char **argv)
280 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE | BIO_FP_TEXT);
282 CRYPTO_set_mem_debug(1);
283 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
286 /* "Negative" test, expect a mismatch */
287 if (run_srp("alice", "password1", "password2") == 0) {
288 fprintf(stderr, "Mismatched SRP run failed\n");
292 /* "Positive" test, should pass */
293 if (run_srp("alice", "password", "password") != 0) {
294 fprintf(stderr, "Plain SRP run failed\n");
298 /* KAT from RFC5054: should pass */
299 if (run_srp_kat() != 1) {
300 fprintf(stderr, "SRP KAT failed\n");
304 #ifndef OPENSSL_NO_CRYPTO_MDEBUG
305 if (CRYPTO_mem_leaks(bio_err) <= 0)