1 /* crypto/ecdh/ecdhtest.c */
2 /* ====================================================================
3 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
4 *
5 * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
6 * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
7 * to the OpenSSL project.
8 *
9 * The ECC Code is licensed pursuant to the OpenSSL open source
10 * license provided below.
11 *
12 * The ECDH software is originally written by Douglas Stebila of
13 * Sun Microsystems Laboratories.
14 *
15 */
16 /* ====================================================================
17 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 *
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 *
26 * 2. Redistributions in binary form must reproduce the above copyright
27 * notice, this list of conditions and the following disclaimer in
28 * the documentation and/or other materials provided with the
29 * distribution.
30 *
31 * 3. All advertising materials mentioning features or use of this
32 * software must display the following acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
35 *
36 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
37 * endorse or promote products derived from this software without
38 * prior written permission. For written permission, please contact
39 * openssl-core@openssl.org.
40 *
41 * 5. Products derived from this software may not be called "OpenSSL"
42 * nor may "OpenSSL" appear in their names without prior written
43 * permission of the OpenSSL Project.
44 *
45 * 6. Redistributions of any form whatsoever must retain the following
46 * acknowledgment:
47 * "This product includes software developed by the OpenSSL Project
48 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
51 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
53 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
54 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
56 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
57 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
59 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
60 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
61 * OF THE POSSIBILITY OF SUCH DAMAGE.
62 * ====================================================================
63 *
64 * This product includes cryptographic software written by Eric Young
65 * (eay@cryptsoft.com). This product includes software written by Tim
66 * Hudson (tjh@cryptsoft.com).
67 *
68 */
69
70 #include <stdio.h>
71 #include <stdlib.h>
72 #include <string.h>
73
74 #include "../e_os.h"
75
76 #include <openssl/opensslconf.h> /* for OPENSSL_NO_ECDH */
77 #include <openssl/crypto.h>
78 #include <openssl/bio.h>
79 #include <openssl/bn.h>
80 #include <openssl/objects.h>
81 #include <openssl/rand.h>
82 #include <openssl/sha.h>
83 #include <openssl/err.h>
84
85 #ifdef OPENSSL_NO_ECDH
main(int argc,char * argv[])86 int main(int argc, char *argv[])
87 {
88 printf("No ECDH support\n");
89 return(0);
90 }
91 #else
92 #include <openssl/ec.h>
93 #include <openssl/ecdh.h>
94
95 #ifdef OPENSSL_SYS_WIN16
96 #define MS_CALLBACK _far _loadds
97 #else
98 #define MS_CALLBACK
99 #endif
100
101 #if 0
102 static void MS_CALLBACK cb(int p, int n, void *arg);
103 #endif
104
105 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
106
107
108 static const int KDF1_SHA1_len = 20;
KDF1_SHA1(const void * in,size_t inlen,void * out,size_t * outlen)109 static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
110 {
111 #ifndef OPENSSL_NO_SHA
112 if (*outlen < SHA_DIGEST_LENGTH)
113 return NULL;
114 else
115 *outlen = SHA_DIGEST_LENGTH;
116 return SHA1(in, inlen, out);
117 #else
118 return NULL;
119 #endif
120 }
121
122
test_ecdh_curve(int nid,const char * text,BN_CTX * ctx,BIO * out)123 static int test_ecdh_curve(int nid, const char *text, BN_CTX *ctx, BIO *out)
124 {
125 EC_KEY *a=NULL;
126 EC_KEY *b=NULL;
127 BIGNUM *x_a=NULL, *y_a=NULL,
128 *x_b=NULL, *y_b=NULL;
129 char buf[12];
130 unsigned char *abuf=NULL,*bbuf=NULL;
131 int i,alen,blen,aout,bout,ret=0;
132 const EC_GROUP *group;
133
134 a = EC_KEY_new_by_curve_name(nid);
135 b = EC_KEY_new_by_curve_name(nid);
136 if (a == NULL || b == NULL)
137 goto err;
138
139 group = EC_KEY_get0_group(a);
140
141 if ((x_a=BN_new()) == NULL) goto err;
142 if ((y_a=BN_new()) == NULL) goto err;
143 if ((x_b=BN_new()) == NULL) goto err;
144 if ((y_b=BN_new()) == NULL) goto err;
145
146 BIO_puts(out,"Testing key generation with ");
147 BIO_puts(out,text);
148 #ifdef NOISY
149 BIO_puts(out,"\n");
150 #else
151 (void)BIO_flush(out);
152 #endif
153
154 if (!EC_KEY_generate_key(a)) goto err;
155
156 if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
157 {
158 if (!EC_POINT_get_affine_coordinates_GFp(group,
159 EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
160 }
161 else
162 {
163 if (!EC_POINT_get_affine_coordinates_GF2m(group,
164 EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
165 }
166 #ifdef NOISY
167 BIO_puts(out," pri 1=");
168 BN_print(out,a->priv_key);
169 BIO_puts(out,"\n pub 1=");
170 BN_print(out,x_a);
171 BIO_puts(out,",");
172 BN_print(out,y_a);
173 BIO_puts(out,"\n");
174 #else
175 BIO_printf(out," .");
176 (void)BIO_flush(out);
177 #endif
178
179 if (!EC_KEY_generate_key(b)) goto err;
180
181 if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
182 {
183 if (!EC_POINT_get_affine_coordinates_GFp(group,
184 EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
185 }
186 else
187 {
188 if (!EC_POINT_get_affine_coordinates_GF2m(group,
189 EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
190 }
191
192 #ifdef NOISY
193 BIO_puts(out," pri 2=");
194 BN_print(out,b->priv_key);
195 BIO_puts(out,"\n pub 2=");
196 BN_print(out,x_b);
197 BIO_puts(out,",");
198 BN_print(out,y_b);
199 BIO_puts(out,"\n");
200 #else
201 BIO_printf(out,".");
202 (void)BIO_flush(out);
203 #endif
204
205 alen=KDF1_SHA1_len;
206 abuf=(unsigned char *)OPENSSL_malloc(alen);
207 aout=ECDH_compute_key(abuf,alen,EC_KEY_get0_public_key(b),a,KDF1_SHA1);
208
209 #ifdef NOISY
210 BIO_puts(out," key1 =");
211 for (i=0; i<aout; i++)
212 {
213 sprintf(buf,"%02X",abuf[i]);
214 BIO_puts(out,buf);
215 }
216 BIO_puts(out,"\n");
217 #else
218 BIO_printf(out,".");
219 (void)BIO_flush(out);
220 #endif
221
222 blen=KDF1_SHA1_len;
223 bbuf=(unsigned char *)OPENSSL_malloc(blen);
224 bout=ECDH_compute_key(bbuf,blen,EC_KEY_get0_public_key(a),b,KDF1_SHA1);
225
226 #ifdef NOISY
227 BIO_puts(out," key2 =");
228 for (i=0; i<bout; i++)
229 {
230 sprintf(buf,"%02X",bbuf[i]);
231 BIO_puts(out,buf);
232 }
233 BIO_puts(out,"\n");
234 #else
235 BIO_printf(out,".");
236 (void)BIO_flush(out);
237 #endif
238
239 if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
240 {
241 #ifndef NOISY
242 BIO_printf(out, " failed\n\n");
243 BIO_printf(out, "key a:\n");
244 BIO_printf(out, "private key: ");
245 BN_print(out, EC_KEY_get0_private_key(a));
246 BIO_printf(out, "\n");
247 BIO_printf(out, "public key (x,y): ");
248 BN_print(out, x_a);
249 BIO_printf(out, ",");
250 BN_print(out, y_a);
251 BIO_printf(out, "\nkey b:\n");
252 BIO_printf(out, "private key: ");
253 BN_print(out, EC_KEY_get0_private_key(b));
254 BIO_printf(out, "\n");
255 BIO_printf(out, "public key (x,y): ");
256 BN_print(out, x_b);
257 BIO_printf(out, ",");
258 BN_print(out, y_b);
259 BIO_printf(out, "\n");
260 BIO_printf(out, "generated key a: ");
261 for (i=0; i<bout; i++)
262 {
263 sprintf(buf, "%02X", bbuf[i]);
264 BIO_puts(out, buf);
265 }
266 BIO_printf(out, "\n");
267 BIO_printf(out, "generated key b: ");
268 for (i=0; i<aout; i++)
269 {
270 sprintf(buf, "%02X", abuf[i]);
271 BIO_puts(out,buf);
272 }
273 BIO_printf(out, "\n");
274 #endif
275 fprintf(stderr,"Error in ECDH routines\n");
276 ret=0;
277 }
278 else
279 {
280 #ifndef NOISY
281 BIO_printf(out, " ok\n");
282 #endif
283 ret=1;
284 }
285 err:
286 ERR_print_errors_fp(stderr);
287
288 if (abuf != NULL) OPENSSL_free(abuf);
289 if (bbuf != NULL) OPENSSL_free(bbuf);
290 if (x_a) BN_free(x_a);
291 if (y_a) BN_free(y_a);
292 if (x_b) BN_free(x_b);
293 if (y_b) BN_free(y_b);
294 if (b) EC_KEY_free(b);
295 if (a) EC_KEY_free(a);
296 return(ret);
297 }
298
main(int argc,char * argv[])299 int main(int argc, char *argv[])
300 {
301 BN_CTX *ctx=NULL;
302 int ret=1;
303 BIO *out;
304
305 CRYPTO_malloc_debug_init();
306 CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
307 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
308
309 #ifdef OPENSSL_SYS_WIN32
310 CRYPTO_malloc_init();
311 #endif
312
313 RAND_seed(rnd_seed, sizeof rnd_seed);
314
315 out=BIO_new(BIO_s_file());
316 if (out == NULL) EXIT(1);
317 BIO_set_fp(out,stdout,BIO_NOCLOSE);
318
319 if ((ctx=BN_CTX_new()) == NULL) goto err;
320
321 /* NIST PRIME CURVES TESTS */
322 if (!test_ecdh_curve(NID_X9_62_prime192v1, "NIST Prime-Curve P-192", ctx, out)) goto err;
323 if (!test_ecdh_curve(NID_secp224r1, "NIST Prime-Curve P-224", ctx, out)) goto err;
324 if (!test_ecdh_curve(NID_X9_62_prime256v1, "NIST Prime-Curve P-256", ctx, out)) goto err;
325 if (!test_ecdh_curve(NID_secp384r1, "NIST Prime-Curve P-384", ctx, out)) goto err;
326 if (!test_ecdh_curve(NID_secp521r1, "NIST Prime-Curve P-521", ctx, out)) goto err;
327 /* NIST BINARY CURVES TESTS */
328 if (!test_ecdh_curve(NID_sect163k1, "NIST Binary-Curve K-163", ctx, out)) goto err;
329 if (!test_ecdh_curve(NID_sect163r2, "NIST Binary-Curve B-163", ctx, out)) goto err;
330 if (!test_ecdh_curve(NID_sect233k1, "NIST Binary-Curve K-233", ctx, out)) goto err;
331 if (!test_ecdh_curve(NID_sect233r1, "NIST Binary-Curve B-233", ctx, out)) goto err;
332 if (!test_ecdh_curve(NID_sect283k1, "NIST Binary-Curve K-283", ctx, out)) goto err;
333 if (!test_ecdh_curve(NID_sect283r1, "NIST Binary-Curve B-283", ctx, out)) goto err;
334 if (!test_ecdh_curve(NID_sect409k1, "NIST Binary-Curve K-409", ctx, out)) goto err;
335 if (!test_ecdh_curve(NID_sect409r1, "NIST Binary-Curve B-409", ctx, out)) goto err;
336 if (!test_ecdh_curve(NID_sect571k1, "NIST Binary-Curve K-571", ctx, out)) goto err;
337 if (!test_ecdh_curve(NID_sect571r1, "NIST Binary-Curve B-571", ctx, out)) goto err;
338
339 ret = 0;
340
341 err:
342 ERR_print_errors_fp(stderr);
343 if (ctx) BN_CTX_free(ctx);
344 BIO_free(out);
345 CRYPTO_cleanup_all_ex_data();
346 ERR_remove_thread_state(NULL);
347 CRYPTO_mem_leaks_fp(stderr);
348 EXIT(ret);
349 return(ret);
350 }
351
352 #if 0
353 static void MS_CALLBACK cb(int p, int n, void *arg)
354 {
355 char c='*';
356
357 if (p == 0) c='.';
358 if (p == 1) c='+';
359 if (p == 2) c='*';
360 if (p == 3) c='\n';
361 BIO_write((BIO *)arg,&c,1);
362 (void)BIO_flush((BIO *)arg);
363 #ifdef LINT
364 p=n;
365 #endif
366 }
367 #endif
368 #endif
369