1 /* crypto/ecdh/ecdhtest.c */
2 /* ====================================================================
3 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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.
9 * The ECC Code is licensed pursuant to the OpenSSL open source
10 * license provided below.
12 * The ECDH software is originally written by Douglas Stebila of
13 * Sun Microsystems Laboratories.
16 /* ====================================================================
17 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
23 * 1. Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
45 * 6. Redistributions of any form whatsoever must retain the following
47 * "This product includes software developed by the OpenSSL Project
48 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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>
85 #ifdef OPENSSL_NO_ECDH
86 int main(int argc, char *argv[])
88 printf("No ECDH support\n");
92 #include <openssl/ec.h>
93 #include <openssl/ecdh.h>
95 #ifdef OPENSSL_SYS_WIN16
96 #define MS_CALLBACK _far _loadds
102 static void MS_CALLBACK cb(int p, int n, void *arg);
105 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
108 static const int KDF1_SHA1_len = 20;
109 static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
111 #ifndef OPENSSL_NO_SHA
112 if (*outlen < SHA_DIGEST_LENGTH)
115 *outlen = SHA_DIGEST_LENGTH;
116 return SHA1(in, inlen, out);
123 static int test_ecdh_curve(int nid, const char *text, BN_CTX *ctx, BIO *out)
127 BIGNUM *x_a=NULL, *y_a=NULL,
128 *x_b=NULL, *y_b=NULL;
130 unsigned char *abuf=NULL,*bbuf=NULL;
131 int i,alen,blen,aout,bout,ret=0;
132 const EC_GROUP *group;
134 a = EC_KEY_new_by_curve_name(nid);
135 b = EC_KEY_new_by_curve_name(nid);
136 if (a == NULL || b == NULL)
139 group = EC_KEY_get0_group(a);
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;
146 BIO_puts(out,"Testing key generation with ");
151 (void)BIO_flush(out);
154 if (!EC_KEY_generate_key(a)) goto err;
156 if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
158 if (!EC_POINT_get_affine_coordinates_GFp(group,
159 EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
161 #ifndef OPENSSL_NO_EC2M
164 if (!EC_POINT_get_affine_coordinates_GF2m(group,
165 EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
169 BIO_puts(out," pri 1=");
170 BN_print(out,a->priv_key);
171 BIO_puts(out,"\n pub 1=");
177 BIO_printf(out," .");
178 (void)BIO_flush(out);
181 if (!EC_KEY_generate_key(b)) goto err;
183 if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field)
185 if (!EC_POINT_get_affine_coordinates_GFp(group,
186 EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
188 #ifndef OPENSSL_NO_EC2M
191 if (!EC_POINT_get_affine_coordinates_GF2m(group,
192 EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
197 BIO_puts(out," pri 2=");
198 BN_print(out,b->priv_key);
199 BIO_puts(out,"\n pub 2=");
206 (void)BIO_flush(out);
210 abuf=(unsigned char *)OPENSSL_malloc(alen);
211 aout=ECDH_compute_key(abuf,alen,EC_KEY_get0_public_key(b),a,KDF1_SHA1);
214 BIO_puts(out," key1 =");
215 for (i=0; i<aout; i++)
217 sprintf(buf,"%02X",abuf[i]);
223 (void)BIO_flush(out);
227 bbuf=(unsigned char *)OPENSSL_malloc(blen);
228 bout=ECDH_compute_key(bbuf,blen,EC_KEY_get0_public_key(a),b,KDF1_SHA1);
231 BIO_puts(out," key2 =");
232 for (i=0; i<bout; i++)
234 sprintf(buf,"%02X",bbuf[i]);
240 (void)BIO_flush(out);
243 if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
246 BIO_printf(out, " failed\n\n");
247 BIO_printf(out, "key a:\n");
248 BIO_printf(out, "private key: ");
249 BN_print(out, EC_KEY_get0_private_key(a));
250 BIO_printf(out, "\n");
251 BIO_printf(out, "public key (x,y): ");
253 BIO_printf(out, ",");
255 BIO_printf(out, "\nkey b:\n");
256 BIO_printf(out, "private key: ");
257 BN_print(out, EC_KEY_get0_private_key(b));
258 BIO_printf(out, "\n");
259 BIO_printf(out, "public key (x,y): ");
261 BIO_printf(out, ",");
263 BIO_printf(out, "\n");
264 BIO_printf(out, "generated key a: ");
265 for (i=0; i<bout; i++)
267 sprintf(buf, "%02X", bbuf[i]);
270 BIO_printf(out, "\n");
271 BIO_printf(out, "generated key b: ");
272 for (i=0; i<aout; i++)
274 sprintf(buf, "%02X", abuf[i]);
277 BIO_printf(out, "\n");
279 fprintf(stderr,"Error in ECDH routines\n");
285 BIO_printf(out, " ok\n");
290 ERR_print_errors_fp(stderr);
292 if (abuf != NULL) OPENSSL_free(abuf);
293 if (bbuf != NULL) OPENSSL_free(bbuf);
294 if (x_a) BN_free(x_a);
295 if (y_a) BN_free(y_a);
296 if (x_b) BN_free(x_b);
297 if (y_b) BN_free(y_b);
298 if (b) EC_KEY_free(b);
299 if (a) EC_KEY_free(a);
303 /* Keys and shared secrets from RFC 7027 */
305 static const unsigned char bp256_da[] = {
306 0x81,0xDB,0x1E,0xE1,0x00,0x15,0x0F,0xF2,0xEA,0x33,0x8D,0x70,
307 0x82,0x71,0xBE,0x38,0x30,0x0C,0xB5,0x42,0x41,0xD7,0x99,0x50,
308 0xF7,0x7B,0x06,0x30,0x39,0x80,0x4F,0x1D
311 static const unsigned char bp256_db[] = {
312 0x55,0xE4,0x0B,0xC4,0x1E,0x37,0xE3,0xE2,0xAD,0x25,0xC3,0xC6,
313 0x65,0x45,0x11,0xFF,0xA8,0x47,0x4A,0x91,0xA0,0x03,0x20,0x87,
314 0x59,0x38,0x52,0xD3,0xE7,0xD7,0x6B,0xD3
317 static const unsigned char bp256_Z[] = {
318 0x89,0xAF,0xC3,0x9D,0x41,0xD3,0xB3,0x27,0x81,0x4B,0x80,0x94,
319 0x0B,0x04,0x25,0x90,0xF9,0x65,0x56,0xEC,0x91,0xE6,0xAE,0x79,
320 0x39,0xBC,0xE3,0x1F,0x3A,0x18,0xBF,0x2B
323 static const unsigned char bp384_da[] = {
324 0x1E,0x20,0xF5,0xE0,0x48,0xA5,0x88,0x6F,0x1F,0x15,0x7C,0x74,
325 0xE9,0x1B,0xDE,0x2B,0x98,0xC8,0xB5,0x2D,0x58,0xE5,0x00,0x3D,
326 0x57,0x05,0x3F,0xC4,0xB0,0xBD,0x65,0xD6,0xF1,0x5E,0xB5,0xD1,
327 0xEE,0x16,0x10,0xDF,0x87,0x07,0x95,0x14,0x36,0x27,0xD0,0x42
330 static const unsigned char bp384_db[] = {
331 0x03,0x26,0x40,0xBC,0x60,0x03,0xC5,0x92,0x60,0xF7,0x25,0x0C,
332 0x3D,0xB5,0x8C,0xE6,0x47,0xF9,0x8E,0x12,0x60,0xAC,0xCE,0x4A,
333 0xCD,0xA3,0xDD,0x86,0x9F,0x74,0xE0,0x1F,0x8B,0xA5,0xE0,0x32,
334 0x43,0x09,0xDB,0x6A,0x98,0x31,0x49,0x7A,0xBA,0xC9,0x66,0x70
337 static const unsigned char bp384_Z[] = {
338 0x0B,0xD9,0xD3,0xA7,0xEA,0x0B,0x3D,0x51,0x9D,0x09,0xD8,0xE4,
339 0x8D,0x07,0x85,0xFB,0x74,0x4A,0x6B,0x35,0x5E,0x63,0x04,0xBC,
340 0x51,0xC2,0x29,0xFB,0xBC,0xE2,0x39,0xBB,0xAD,0xF6,0x40,0x37,
341 0x15,0xC3,0x5D,0x4F,0xB2,0xA5,0x44,0x4F,0x57,0x5D,0x4F,0x42
344 static const unsigned char bp512_da[] = {
345 0x16,0x30,0x2F,0xF0,0xDB,0xBB,0x5A,0x8D,0x73,0x3D,0xAB,0x71,
346 0x41,0xC1,0xB4,0x5A,0xCB,0xC8,0x71,0x59,0x39,0x67,0x7F,0x6A,
347 0x56,0x85,0x0A,0x38,0xBD,0x87,0xBD,0x59,0xB0,0x9E,0x80,0x27,
348 0x96,0x09,0xFF,0x33,0x3E,0xB9,0xD4,0xC0,0x61,0x23,0x1F,0xB2,
349 0x6F,0x92,0xEE,0xB0,0x49,0x82,0xA5,0xF1,0xD1,0x76,0x4C,0xAD,
353 static const unsigned char bp512_db[] = {
354 0x23,0x0E,0x18,0xE1,0xBC,0xC8,0x8A,0x36,0x2F,0xA5,0x4E,0x4E,
355 0xA3,0x90,0x20,0x09,0x29,0x2F,0x7F,0x80,0x33,0x62,0x4F,0xD4,
356 0x71,0xB5,0xD8,0xAC,0xE4,0x9D,0x12,0xCF,0xAB,0xBC,0x19,0x96,
357 0x3D,0xAB,0x8E,0x2F,0x1E,0xBA,0x00,0xBF,0xFB,0x29,0xE4,0xD7,
358 0x2D,0x13,0xF2,0x22,0x45,0x62,0xF4,0x05,0xCB,0x80,0x50,0x36,
363 static const unsigned char bp512_Z[] = {
364 0xA7,0x92,0x70,0x98,0x65,0x5F,0x1F,0x99,0x76,0xFA,0x50,0xA9,
365 0xD5,0x66,0x86,0x5D,0xC5,0x30,0x33,0x18,0x46,0x38,0x1C,0x87,
366 0x25,0x6B,0xAF,0x32,0x26,0x24,0x4B,0x76,0xD3,0x64,0x03,0xC0,
367 0x24,0xD7,0xBB,0xF0,0xAA,0x08,0x03,0xEA,0xFF,0x40,0x5D,0x3D,
368 0x24,0xF1,0x1A,0x9B,0x5C,0x0B,0xEF,0x67,0x9F,0xE1,0x45,0x4B,
372 /* Given private value and NID, create EC_KEY structure */
374 static EC_KEY *mk_eckey(int nid, const unsigned char *p, size_t plen)
379 EC_POINT *pub = NULL;
381 k = EC_KEY_new_by_curve_name(nid);
384 priv = BN_bin2bn(p, plen, NULL);
387 if (!EC_KEY_set_private_key(k, priv))
389 grp = EC_KEY_get0_group(k);
390 pub = EC_POINT_new(grp);
393 if (!EC_POINT_mul(grp, pub, priv, NULL, NULL, NULL))
395 if (!EC_KEY_set_public_key(k, pub))
410 /* Known answer test: compute shared secret and check it matches
414 static int ecdh_kat(BIO *out, const char *cname, int nid,
415 const unsigned char *k1, size_t k1_len,
416 const unsigned char *k2, size_t k2_len,
417 const unsigned char *Z, size_t Zlen)
420 EC_KEY *key1 = NULL, *key2 = NULL;
421 unsigned char *Ztmp = NULL;
423 BIO_puts(out, "Testing ECDH shared secret with ");
424 BIO_puts(out, cname);
425 key1 = mk_eckey(nid, k1, k1_len);
426 key2 = mk_eckey(nid, k2, k2_len);
429 Ztmplen = (EC_GROUP_get_degree(EC_KEY_get0_group(key1)) + 7)/8;
432 Ztmp = OPENSSL_malloc(Ztmplen);
433 if (!ECDH_compute_key(Ztmp, Ztmplen,
434 EC_KEY_get0_public_key(key2), key1, 0))
436 if (memcmp(Ztmp, Z, Zlen))
438 memset(Ztmp, 0, Zlen);
439 if (!ECDH_compute_key(Ztmp, Ztmplen,
440 EC_KEY_get0_public_key(key1), key2, 0))
442 if (memcmp(Ztmp, Z, Zlen))
453 BIO_puts(out, " ok\n");
456 fprintf(stderr, "Error in ECDH routines\n");
457 ERR_print_errors_fp(stderr);
462 #define test_ecdh_kat(bio, curve, bits) \
463 ecdh_kat(bio, curve, NID_brainpoolP##bits##r1, \
464 bp##bits##_da, sizeof(bp##bits##_da), \
465 bp##bits##_db, sizeof(bp##bits##_db), \
466 bp##bits##_Z, sizeof(bp##bits##_Z))
468 int main(int argc, char *argv[])
474 CRYPTO_malloc_debug_init();
475 CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
476 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
478 #ifdef OPENSSL_SYS_WIN32
479 CRYPTO_malloc_init();
482 RAND_seed(rnd_seed, sizeof rnd_seed);
484 out=BIO_new(BIO_s_file());
485 if (out == NULL) EXIT(1);
486 BIO_set_fp(out,stdout,BIO_NOCLOSE);
488 if ((ctx=BN_CTX_new()) == NULL) goto err;
490 /* NIST PRIME CURVES TESTS */
491 if (!test_ecdh_curve(NID_X9_62_prime192v1, "NIST Prime-Curve P-192", ctx, out)) goto err;
492 if (!test_ecdh_curve(NID_secp224r1, "NIST Prime-Curve P-224", ctx, out)) goto err;
493 if (!test_ecdh_curve(NID_X9_62_prime256v1, "NIST Prime-Curve P-256", ctx, out)) goto err;
494 if (!test_ecdh_curve(NID_secp384r1, "NIST Prime-Curve P-384", ctx, out)) goto err;
495 if (!test_ecdh_curve(NID_secp521r1, "NIST Prime-Curve P-521", ctx, out)) goto err;
496 #ifndef OPENSSL_NO_EC2M
497 /* NIST BINARY CURVES TESTS */
498 if (!test_ecdh_curve(NID_sect163k1, "NIST Binary-Curve K-163", ctx, out)) goto err;
499 if (!test_ecdh_curve(NID_sect163r2, "NIST Binary-Curve B-163", ctx, out)) goto err;
500 if (!test_ecdh_curve(NID_sect233k1, "NIST Binary-Curve K-233", ctx, out)) goto err;
501 if (!test_ecdh_curve(NID_sect233r1, "NIST Binary-Curve B-233", ctx, out)) goto err;
502 if (!test_ecdh_curve(NID_sect283k1, "NIST Binary-Curve K-283", ctx, out)) goto err;
503 if (!test_ecdh_curve(NID_sect283r1, "NIST Binary-Curve B-283", ctx, out)) goto err;
504 if (!test_ecdh_curve(NID_sect409k1, "NIST Binary-Curve K-409", ctx, out)) goto err;
505 if (!test_ecdh_curve(NID_sect409r1, "NIST Binary-Curve B-409", ctx, out)) goto err;
506 if (!test_ecdh_curve(NID_sect571k1, "NIST Binary-Curve K-571", ctx, out)) goto err;
507 if (!test_ecdh_curve(NID_sect571r1, "NIST Binary-Curve B-571", ctx, out)) goto err;
509 if (!test_ecdh_kat(out, "Brainpool Prime-Curve brainpoolP256r1", 256))
511 if (!test_ecdh_kat(out, "Brainpool Prime-Curve brainpoolP384r1", 384))
513 if (!test_ecdh_kat(out, "Brainpool Prime-Curve brainpoolP512r1", 512))
519 ERR_print_errors_fp(stderr);
520 if (ctx) BN_CTX_free(ctx);
522 CRYPTO_cleanup_all_ex_data();
523 ERR_remove_thread_state(NULL);
524 CRYPTO_mem_leaks_fp(stderr);
530 static void MS_CALLBACK cb(int p, int n, void *arg)
538 BIO_write((BIO *)arg,&c,1);
539 (void)BIO_flush((BIO *)arg);