1/* crypto/ec/ectest.c */
2/*
3 * Originally written by Bodo Moeller for the OpenSSL project.
4 */
5/* ====================================================================
6 * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 *    software must display the following acknowledgment:
22 *    "This product includes software developed by the OpenSSL Project
23 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 *    endorse or promote products derived from this software without
27 *    prior written permission. For written permission, please contact
28 *    openssl-core@openssl.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 *    nor may "OpenSSL" appear in their names without prior written
32 *    permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 *    acknowledgment:
36 *    "This product includes software developed by the OpenSSL Project
37 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com).  This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58/* ====================================================================
59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60 *
61 * Portions of the attached software ("Contribution") are developed by
62 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
63 *
64 * The Contribution is licensed pursuant to the OpenSSL open source
65 * license provided above.
66 *
67 * The elliptic curve binary polynomial software is originally written by
68 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
69 *
70 */
71
72#include <stdio.h>
73#include <stdlib.h>
74#ifdef FLAT_INC
75#include "e_os.h"
76#else
77#include "../e_os.h"
78#endif
79#include <string.h>
80#include <time.h>
81
82
83#ifdef OPENSSL_NO_EC
84int main(int argc, char * argv[]) { puts("Elliptic curves are disabled."); return 0; }
85#else
86
87
88#include <openssl/ec.h>
89#ifndef OPENSSL_NO_ENGINE
90#include <openssl/engine.h>
91#endif
92#include <openssl/err.h>
93#include <openssl/obj_mac.h>
94#include <openssl/objects.h>
95#include <openssl/rand.h>
96#include <openssl/bn.h>
97
98#if defined(_MSC_VER) && defined(_MIPS_) && (_MSC_VER/100==12)
99/* suppress "too big too optimize" warning */
100#pragma warning(disable:4959)
101#endif
102
103#define ABORT do { \
104	fflush(stdout); \
105	fprintf(stderr, "%s:%d: ABORT\n", __FILE__, __LINE__); \
106	ERR_print_errors_fp(stderr); \
107	EXIT(1); \
108} while (0)
109
110void prime_field_tests(void);
111void char2_field_tests(void);
112void internal_curve_test(void);
113
114#define TIMING_BASE_PT 0
115#define TIMING_RAND_PT 1
116#define TIMING_SIMUL 2
117
118#if 0
119static void timings(EC_GROUP *group, int type, BN_CTX *ctx)
120	{
121	clock_t clck;
122	int i, j;
123	BIGNUM *s;
124	BIGNUM *r[10], *r0[10];
125	EC_POINT *P;
126
127	s = BN_new();
128	if (s == NULL) ABORT;
129
130	fprintf(stdout, "Timings for %d-bit field, ", EC_GROUP_get_degree(group));
131	if (!EC_GROUP_get_order(group, s, ctx)) ABORT;
132	fprintf(stdout, "%d-bit scalars ", (int)BN_num_bits(s));
133	fflush(stdout);
134
135	P = EC_POINT_new(group);
136	if (P == NULL) ABORT;
137	EC_POINT_copy(P, EC_GROUP_get0_generator(group));
138
139	for (i = 0; i < 10; i++)
140		{
141		if ((r[i] = BN_new()) == NULL) ABORT;
142		if (!BN_pseudo_rand(r[i], BN_num_bits(s), 0, 0)) ABORT;
143		if (type != TIMING_BASE_PT)
144			{
145			if ((r0[i] = BN_new()) == NULL) ABORT;
146			if (!BN_pseudo_rand(r0[i], BN_num_bits(s), 0, 0)) ABORT;
147			}
148		}
149
150	clck = clock();
151	for (i = 0; i < 10; i++)
152		{
153		for (j = 0; j < 10; j++)
154			{
155			if (!EC_POINT_mul(group, P, (type != TIMING_RAND_PT) ? r[i] : NULL,
156				(type != TIMING_BASE_PT) ? P : NULL, (type != TIMING_BASE_PT) ? r0[i] : NULL, ctx)) ABORT;
157			}
158		}
159	clck = clock() - clck;
160
161	fprintf(stdout, "\n");
162
163#ifdef CLOCKS_PER_SEC
164	/* "To determine the time in seconds, the value returned
165	 * by the clock function should be divided by the value
166	 * of the macro CLOCKS_PER_SEC."
167	 *                                       -- ISO/IEC 9899 */
168#	define UNIT "s"
169#else
170	/* "`CLOCKS_PER_SEC' undeclared (first use this function)"
171	 *                            -- cc on NeXTstep/OpenStep */
172#	define UNIT "units"
173#	define CLOCKS_PER_SEC 1
174#endif
175
176	if (type == TIMING_BASE_PT) {
177		fprintf(stdout, "%i %s in %.2f " UNIT "\n", i*j,
178			"base point multiplications", (double)clck/CLOCKS_PER_SEC);
179	} else if (type == TIMING_RAND_PT) {
180		fprintf(stdout, "%i %s in %.2f " UNIT "\n", i*j,
181			"random point multiplications", (double)clck/CLOCKS_PER_SEC);
182	} else if (type == TIMING_SIMUL) {
183		fprintf(stdout, "%i %s in %.2f " UNIT "\n", i*j,
184			"s*P+t*Q operations", (double)clck/CLOCKS_PER_SEC);
185	}
186	fprintf(stdout, "average: %.4f " UNIT "\n", (double)clck/(CLOCKS_PER_SEC*i*j));
187
188	EC_POINT_free(P);
189	BN_free(s);
190	for (i = 0; i < 10; i++)
191		{
192		BN_free(r[i]);
193		if (type != TIMING_BASE_PT) BN_free(r0[i]);
194		}
195	}
196#endif
197
198void prime_field_tests()
199	{
200	BN_CTX *ctx = NULL;
201	BIGNUM *p, *a, *b;
202	EC_GROUP *group;
203	EC_GROUP *P_160 = NULL, *P_192 = NULL, *P_224 = NULL, *P_256 = NULL, *P_384 = NULL, *P_521 = NULL;
204	EC_POINT *P, *Q, *R;
205	BIGNUM *x, *y, *z;
206	unsigned char buf[100];
207	size_t i, len;
208	int k;
209
210#if 1 /* optional */
211	ctx = BN_CTX_new();
212	if (!ctx) ABORT;
213#endif
214
215	p = BN_new();
216	a = BN_new();
217	b = BN_new();
218	if (!p || !a || !b) ABORT;
219
220	if (!BN_hex2bn(&p, "17")) ABORT;
221	if (!BN_hex2bn(&a, "1")) ABORT;
222	if (!BN_hex2bn(&b, "1")) ABORT;
223
224	group = EC_GROUP_new(EC_GFp_mont_method()); /* applications should use EC_GROUP_new_curve_GFp
225	                                             * so that the library gets to choose the EC_METHOD */
226	if (!group) ABORT;
227
228	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
229
230	{
231		EC_GROUP *tmp;
232		tmp = EC_GROUP_new(EC_GROUP_method_of(group));
233		if (!tmp) ABORT;
234		if (!EC_GROUP_copy(tmp, group)) ABORT;
235		EC_GROUP_free(group);
236		group = tmp;
237	}
238
239	if (!EC_GROUP_get_curve_GFp(group, p, a, b, ctx)) ABORT;
240
241	fprintf(stdout, "Curve defined by Weierstrass equation\n     y^2 = x^3 + a*x + b  (mod 0x");
242	BN_print_fp(stdout, p);
243	fprintf(stdout, ")\n     a = 0x");
244	BN_print_fp(stdout, a);
245	fprintf(stdout, "\n     b = 0x");
246	BN_print_fp(stdout, b);
247	fprintf(stdout, "\n");
248
249	P = EC_POINT_new(group);
250	Q = EC_POINT_new(group);
251	R = EC_POINT_new(group);
252	if (!P || !Q || !R) ABORT;
253
254	if (!EC_POINT_set_to_infinity(group, P)) ABORT;
255	if (!EC_POINT_is_at_infinity(group, P)) ABORT;
256
257	buf[0] = 0;
258	if (!EC_POINT_oct2point(group, Q, buf, 1, ctx)) ABORT;
259
260	if (!EC_POINT_add(group, P, P, Q, ctx)) ABORT;
261	if (!EC_POINT_is_at_infinity(group, P)) ABORT;
262
263	x = BN_new();
264	y = BN_new();
265	z = BN_new();
266	if (!x || !y || !z) ABORT;
267
268	if (!BN_hex2bn(&x, "D")) ABORT;
269	if (!EC_POINT_set_compressed_coordinates_GFp(group, Q, x, 1, ctx)) ABORT;
270	if (!EC_POINT_is_on_curve(group, Q, ctx))
271		{
272		if (!EC_POINT_get_affine_coordinates_GFp(group, Q, x, y, ctx)) ABORT;
273		fprintf(stderr, "Point is not on curve: x = 0x");
274		BN_print_fp(stderr, x);
275		fprintf(stderr, ", y = 0x");
276		BN_print_fp(stderr, y);
277		fprintf(stderr, "\n");
278		ABORT;
279		}
280
281	fprintf(stdout, "A cyclic subgroup:\n");
282	k = 100;
283	do
284		{
285		if (k-- == 0) ABORT;
286
287		if (EC_POINT_is_at_infinity(group, P))
288			fprintf(stdout, "     point at infinity\n");
289		else
290			{
291			if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
292
293			fprintf(stdout, "     x = 0x");
294			BN_print_fp(stdout, x);
295			fprintf(stdout, ", y = 0x");
296			BN_print_fp(stdout, y);
297			fprintf(stdout, "\n");
298			}
299
300		if (!EC_POINT_copy(R, P)) ABORT;
301		if (!EC_POINT_add(group, P, P, Q, ctx)) ABORT;
302
303#if 0 /* optional */
304		{
305			EC_POINT *points[3];
306
307			points[0] = R;
308			points[1] = Q;
309			points[2] = P;
310			if (!EC_POINTs_make_affine(group, 2, points, ctx)) ABORT;
311		}
312#endif
313
314		}
315	while (!EC_POINT_is_at_infinity(group, P));
316
317	if (!EC_POINT_add(group, P, Q, R, ctx)) ABORT;
318	if (!EC_POINT_is_at_infinity(group, P)) ABORT;
319
320	len = EC_POINT_point2oct(group, Q, POINT_CONVERSION_COMPRESSED, buf, sizeof buf, ctx);
321	if (len == 0) ABORT;
322	if (!EC_POINT_oct2point(group, P, buf, len, ctx)) ABORT;
323	if (0 != EC_POINT_cmp(group, P, Q, ctx)) ABORT;
324	fprintf(stdout, "Generator as octect string, compressed form:\n     ");
325	for (i = 0; i < len; i++) fprintf(stdout, "%02X", buf[i]);
326
327	len = EC_POINT_point2oct(group, Q, POINT_CONVERSION_UNCOMPRESSED, buf, sizeof buf, ctx);
328	if (len == 0) ABORT;
329	if (!EC_POINT_oct2point(group, P, buf, len, ctx)) ABORT;
330	if (0 != EC_POINT_cmp(group, P, Q, ctx)) ABORT;
331	fprintf(stdout, "\nGenerator as octect string, uncompressed form:\n     ");
332	for (i = 0; i < len; i++) fprintf(stdout, "%02X", buf[i]);
333
334	len = EC_POINT_point2oct(group, Q, POINT_CONVERSION_HYBRID, buf, sizeof buf, ctx);
335	if (len == 0) ABORT;
336	if (!EC_POINT_oct2point(group, P, buf, len, ctx)) ABORT;
337	if (0 != EC_POINT_cmp(group, P, Q, ctx)) ABORT;
338	fprintf(stdout, "\nGenerator as octect string, hybrid form:\n     ");
339	for (i = 0; i < len; i++) fprintf(stdout, "%02X", buf[i]);
340
341	if (!EC_POINT_get_Jprojective_coordinates_GFp(group, R, x, y, z, ctx)) ABORT;
342	fprintf(stdout, "\nA representation of the inverse of that generator in\nJacobian projective coordinates:\n     X = 0x");
343	BN_print_fp(stdout, x);
344	fprintf(stdout, ", Y = 0x");
345	BN_print_fp(stdout, y);
346	fprintf(stdout, ", Z = 0x");
347	BN_print_fp(stdout, z);
348	fprintf(stdout, "\n");
349
350	if (!EC_POINT_invert(group, P, ctx)) ABORT;
351	if (0 != EC_POINT_cmp(group, P, R, ctx)) ABORT;
352
353
354	/* Curve secp160r1 (Certicom Research SEC 2 Version 1.0, section 2.4.2, 2000)
355	 * -- not a NIST curve, but commonly used */
356
357	if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF")) ABORT;
358	if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL)) ABORT;
359	if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC")) ABORT;
360	if (!BN_hex2bn(&b, "1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45")) ABORT;
361	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
362
363	if (!BN_hex2bn(&x, "4A96B5688EF573284664698968C38BB913CBFC82")) ABORT;
364	if (!BN_hex2bn(&y, "23a628553168947d59dcc912042351377ac5fb32")) ABORT;
365	if (!EC_POINT_set_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
366	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
367	if (!BN_hex2bn(&z, "0100000000000000000001F4C8F927AED3CA752257")) ABORT;
368	if (!EC_GROUP_set_generator(group, P, z, BN_value_one())) ABORT;
369
370	if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
371	fprintf(stdout, "\nSEC2 curve secp160r1 -- Generator:\n     x = 0x");
372	BN_print_fp(stdout, x);
373	fprintf(stdout, "\n     y = 0x");
374	BN_print_fp(stdout, y);
375	fprintf(stdout, "\n");
376	/* G_y value taken from the standard: */
377	if (!BN_hex2bn(&z, "23a628553168947d59dcc912042351377ac5fb32")) ABORT;
378	if (0 != BN_cmp(y, z)) ABORT;
379
380	fprintf(stdout, "verify degree ...");
381	if (EC_GROUP_get_degree(group) != 160) ABORT;
382	fprintf(stdout, " ok\n");
383
384	fprintf(stdout, "verify group order ...");
385	fflush(stdout);
386	if (!EC_GROUP_get_order(group, z, ctx)) ABORT;
387	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
388	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
389	fprintf(stdout, ".");
390	fflush(stdout);
391	if (!EC_GROUP_precompute_mult(group, ctx)) ABORT;
392	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
393	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
394	fprintf(stdout, " ok\n");
395
396	if (!(P_160 = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT;
397	if (!EC_GROUP_copy(P_160, group)) ABORT;
398
399
400	/* Curve P-192 (FIPS PUB 186-2, App. 6) */
401
402	if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF")) ABORT;
403	if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL)) ABORT;
404	if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC")) ABORT;
405	if (!BN_hex2bn(&b, "64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1")) ABORT;
406	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
407
408	if (!BN_hex2bn(&x, "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012")) ABORT;
409	if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx)) ABORT;
410	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
411	if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831")) ABORT;
412	if (!EC_GROUP_set_generator(group, P, z, BN_value_one())) ABORT;
413
414	if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
415	fprintf(stdout, "\nNIST curve P-192 -- Generator:\n     x = 0x");
416	BN_print_fp(stdout, x);
417	fprintf(stdout, "\n     y = 0x");
418	BN_print_fp(stdout, y);
419	fprintf(stdout, "\n");
420	/* G_y value taken from the standard: */
421	if (!BN_hex2bn(&z, "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811")) ABORT;
422	if (0 != BN_cmp(y, z)) ABORT;
423
424	fprintf(stdout, "verify degree ...");
425	if (EC_GROUP_get_degree(group) != 192) ABORT;
426	fprintf(stdout, " ok\n");
427
428	fprintf(stdout, "verify group order ...");
429	fflush(stdout);
430	if (!EC_GROUP_get_order(group, z, ctx)) ABORT;
431	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
432	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
433	fprintf(stdout, ".");
434	fflush(stdout);
435#if 0
436	if (!EC_GROUP_precompute_mult(group, ctx)) ABORT;
437#endif
438	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
439	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
440	fprintf(stdout, " ok\n");
441
442	if (!(P_192 = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT;
443	if (!EC_GROUP_copy(P_192, group)) ABORT;
444
445
446	/* Curve P-224 (FIPS PUB 186-2, App. 6) */
447
448	if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001")) ABORT;
449	if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL)) ABORT;
450	if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE")) ABORT;
451	if (!BN_hex2bn(&b, "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4")) ABORT;
452	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
453
454	if (!BN_hex2bn(&x, "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21")) ABORT;
455	if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx)) ABORT;
456	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
457	if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D")) ABORT;
458	if (!EC_GROUP_set_generator(group, P, z, BN_value_one())) ABORT;
459
460	if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
461	fprintf(stdout, "\nNIST curve P-224 -- Generator:\n     x = 0x");
462	BN_print_fp(stdout, x);
463	fprintf(stdout, "\n     y = 0x");
464	BN_print_fp(stdout, y);
465	fprintf(stdout, "\n");
466	/* G_y value taken from the standard: */
467	if (!BN_hex2bn(&z, "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34")) ABORT;
468	if (0 != BN_cmp(y, z)) ABORT;
469
470	fprintf(stdout, "verify degree ...");
471	if (EC_GROUP_get_degree(group) != 224) ABORT;
472	fprintf(stdout, " ok\n");
473
474	fprintf(stdout, "verify group order ...");
475	fflush(stdout);
476	if (!EC_GROUP_get_order(group, z, ctx)) ABORT;
477	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
478	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
479	fprintf(stdout, ".");
480	fflush(stdout);
481#if 0
482	if (!EC_GROUP_precompute_mult(group, ctx)) ABORT;
483#endif
484	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
485	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
486	fprintf(stdout, " ok\n");
487
488	if (!(P_224 = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT;
489	if (!EC_GROUP_copy(P_224, group)) ABORT;
490
491
492	/* Curve P-256 (FIPS PUB 186-2, App. 6) */
493
494	if (!BN_hex2bn(&p, "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF")) ABORT;
495	if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL)) ABORT;
496	if (!BN_hex2bn(&a, "FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC")) ABORT;
497	if (!BN_hex2bn(&b, "5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B")) ABORT;
498	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
499
500	if (!BN_hex2bn(&x, "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296")) ABORT;
501	if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx)) ABORT;
502	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
503	if (!BN_hex2bn(&z, "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E"
504		"84F3B9CAC2FC632551")) ABORT;
505	if (!EC_GROUP_set_generator(group, P, z, BN_value_one())) ABORT;
506
507	if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
508	fprintf(stdout, "\nNIST curve P-256 -- Generator:\n     x = 0x");
509	BN_print_fp(stdout, x);
510	fprintf(stdout, "\n     y = 0x");
511	BN_print_fp(stdout, y);
512	fprintf(stdout, "\n");
513	/* G_y value taken from the standard: */
514	if (!BN_hex2bn(&z, "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5")) ABORT;
515	if (0 != BN_cmp(y, z)) ABORT;
516
517	fprintf(stdout, "verify degree ...");
518	if (EC_GROUP_get_degree(group) != 256) ABORT;
519	fprintf(stdout, " ok\n");
520
521	fprintf(stdout, "verify group order ...");
522	fflush(stdout);
523	if (!EC_GROUP_get_order(group, z, ctx)) ABORT;
524	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
525	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
526	fprintf(stdout, ".");
527	fflush(stdout);
528#if 0
529	if (!EC_GROUP_precompute_mult(group, ctx)) ABORT;
530#endif
531	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
532	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
533	fprintf(stdout, " ok\n");
534
535	if (!(P_256 = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT;
536	if (!EC_GROUP_copy(P_256, group)) ABORT;
537
538
539	/* Curve P-384 (FIPS PUB 186-2, App. 6) */
540
541	if (!BN_hex2bn(&p, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
542		"FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFF")) ABORT;
543	if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL)) ABORT;
544	if (!BN_hex2bn(&a, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
545		"FFFFFFFFFFFFFFFFFEFFFFFFFF0000000000000000FFFFFFFC")) ABORT;
546	if (!BN_hex2bn(&b, "B3312FA7E23EE7E4988E056BE3F82D19181D9C6EFE8141"
547		"120314088F5013875AC656398D8A2ED19D2A85C8EDD3EC2AEF")) ABORT;
548	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
549
550	if (!BN_hex2bn(&x, "AA87CA22BE8B05378EB1C71EF320AD746E1D3B628BA79B"
551		"9859F741E082542A385502F25DBF55296C3A545E3872760AB7")) ABORT;
552	if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 1, ctx)) ABORT;
553	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
554	if (!BN_hex2bn(&z, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
555		"FFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973")) ABORT;
556	if (!EC_GROUP_set_generator(group, P, z, BN_value_one())) ABORT;
557
558	if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
559	fprintf(stdout, "\nNIST curve P-384 -- Generator:\n     x = 0x");
560	BN_print_fp(stdout, x);
561	fprintf(stdout, "\n     y = 0x");
562	BN_print_fp(stdout, y);
563	fprintf(stdout, "\n");
564	/* G_y value taken from the standard: */
565	if (!BN_hex2bn(&z, "3617DE4A96262C6F5D9E98BF9292DC29F8F41DBD289A14"
566		"7CE9DA3113B5F0B8C00A60B1CE1D7E819D7A431D7C90EA0E5F")) ABORT;
567	if (0 != BN_cmp(y, z)) ABORT;
568
569	fprintf(stdout, "verify degree ...");
570	if (EC_GROUP_get_degree(group) != 384) ABORT;
571	fprintf(stdout, " ok\n");
572
573	fprintf(stdout, "verify group order ...");
574	fflush(stdout);
575	if (!EC_GROUP_get_order(group, z, ctx)) ABORT;
576	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
577	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
578	fprintf(stdout, ".");
579	fflush(stdout);
580#if 0
581	if (!EC_GROUP_precompute_mult(group, ctx)) ABORT;
582#endif
583	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
584	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
585	fprintf(stdout, " ok\n");
586
587	if (!(P_384 = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT;
588	if (!EC_GROUP_copy(P_384, group)) ABORT;
589
590
591	/* Curve P-521 (FIPS PUB 186-2, App. 6) */
592
593	if (!BN_hex2bn(&p, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
594		"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
595		"FFFFFFFFFFFFFFFFFFFFFFFFFFFF")) ABORT;
596	if (1 != BN_is_prime_ex(p, BN_prime_checks, ctx, NULL)) ABORT;
597	if (!BN_hex2bn(&a, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
598		"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
599		"FFFFFFFFFFFFFFFFFFFFFFFFFFFC")) ABORT;
600	if (!BN_hex2bn(&b, "051953EB9618E1C9A1F929A21A0B68540EEA2DA725B99B"
601		"315F3B8B489918EF109E156193951EC7E937B1652C0BD3BB1BF073573"
602		"DF883D2C34F1EF451FD46B503F00")) ABORT;
603	if (!EC_GROUP_set_curve_GFp(group, p, a, b, ctx)) ABORT;
604
605	if (!BN_hex2bn(&x, "C6858E06B70404E9CD9E3ECB662395B4429C648139053F"
606		"B521F828AF606B4D3DBAA14B5E77EFE75928FE1DC127A2FFA8DE3348B"
607		"3C1856A429BF97E7E31C2E5BD66")) ABORT;
608	if (!EC_POINT_set_compressed_coordinates_GFp(group, P, x, 0, ctx)) ABORT;
609	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
610	if (!BN_hex2bn(&z, "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
611		"FFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5"
612		"C9B8899C47AEBB6FB71E91386409")) ABORT;
613	if (!EC_GROUP_set_generator(group, P, z, BN_value_one())) ABORT;
614
615	if (!EC_POINT_get_affine_coordinates_GFp(group, P, x, y, ctx)) ABORT;
616	fprintf(stdout, "\nNIST curve P-521 -- Generator:\n     x = 0x");
617	BN_print_fp(stdout, x);
618	fprintf(stdout, "\n     y = 0x");
619	BN_print_fp(stdout, y);
620	fprintf(stdout, "\n");
621	/* G_y value taken from the standard: */
622	if (!BN_hex2bn(&z, "11839296A789A3BC0045C8A5FB42C7D1BD998F54449579"
623		"B446817AFBD17273E662C97EE72995EF42640C550B9013FAD0761353C"
624		"7086A272C24088BE94769FD16650")) ABORT;
625	if (0 != BN_cmp(y, z)) ABORT;
626
627	fprintf(stdout, "verify degree ...");
628	if (EC_GROUP_get_degree(group) != 521) ABORT;
629	fprintf(stdout, " ok\n");
630
631	fprintf(stdout, "verify group order ...");
632	fflush(stdout);
633	if (!EC_GROUP_get_order(group, z, ctx)) ABORT;
634	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
635	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
636	fprintf(stdout, ".");
637	fflush(stdout);
638#if 0
639	if (!EC_GROUP_precompute_mult(group, ctx)) ABORT;
640#endif
641	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT;
642	if (!EC_POINT_is_at_infinity(group, Q)) ABORT;
643	fprintf(stdout, " ok\n");
644
645	if (!(P_521 = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT;
646	if (!EC_GROUP_copy(P_521, group)) ABORT;
647
648
649	/* more tests using the last curve */
650
651	if (!EC_POINT_copy(Q, P)) ABORT;
652	if (EC_POINT_is_at_infinity(group, Q)) ABORT;
653	if (!EC_POINT_dbl(group, P, P, ctx)) ABORT;
654	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
655	if (!EC_POINT_invert(group, Q, ctx)) ABORT; /* P = -2Q */
656
657	if (!EC_POINT_add(group, R, P, Q, ctx)) ABORT;
658	if (!EC_POINT_add(group, R, R, Q, ctx)) ABORT;
659	if (!EC_POINT_is_at_infinity(group, R)) ABORT; /* R = P + 2Q */
660
661	{
662		const EC_POINT *points[3];
663		const BIGNUM *scalars[3];
664
665		if (EC_POINT_is_at_infinity(group, Q)) ABORT;
666		points[0] = Q;
667		points[1] = Q;
668		points[2] = Q;
669
670		if (!BN_add(y, z, BN_value_one())) ABORT;
671		if (BN_is_odd(y)) ABORT;
672		if (!BN_rshift1(y, y)) ABORT;
673		scalars[0] = y; /* (group order + 1)/2,  so  y*Q + y*Q = Q */
674		scalars[1] = y;
675
676		fprintf(stdout, "combined multiplication ...");
677		fflush(stdout);
678
679		/* z is still the group order */
680		if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx)) ABORT;
681		if (!EC_POINTs_mul(group, R, z, 2, points, scalars, ctx)) ABORT;
682		if (0 != EC_POINT_cmp(group, P, R, ctx)) ABORT;
683		if (0 != EC_POINT_cmp(group, R, Q, ctx)) ABORT;
684
685		fprintf(stdout, ".");
686		fflush(stdout);
687
688		if (!BN_pseudo_rand(y, BN_num_bits(y), 0, 0)) ABORT;
689		if (!BN_add(z, z, y)) ABORT;
690		BN_set_negative(z, 1);
691		scalars[0] = y;
692		scalars[1] = z; /* z = -(order + y) */
693
694		if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx)) ABORT;
695		if (!EC_POINT_is_at_infinity(group, P)) ABORT;
696
697		fprintf(stdout, ".");
698		fflush(stdout);
699
700		if (!BN_pseudo_rand(x, BN_num_bits(y) - 1, 0, 0)) ABORT;
701		if (!BN_add(z, x, y)) ABORT;
702		BN_set_negative(z, 1);
703		scalars[0] = x;
704		scalars[1] = y;
705		scalars[2] = z; /* z = -(x+y) */
706
707		if (!EC_POINTs_mul(group, P, NULL, 3, points, scalars, ctx)) ABORT;
708		if (!EC_POINT_is_at_infinity(group, P)) ABORT;
709
710		fprintf(stdout, " ok\n\n");
711	}
712
713
714#if 0
715	timings(P_160, TIMING_BASE_PT, ctx);
716	timings(P_160, TIMING_RAND_PT, ctx);
717	timings(P_160, TIMING_SIMUL, ctx);
718	timings(P_192, TIMING_BASE_PT, ctx);
719	timings(P_192, TIMING_RAND_PT, ctx);
720	timings(P_192, TIMING_SIMUL, ctx);
721	timings(P_224, TIMING_BASE_PT, ctx);
722	timings(P_224, TIMING_RAND_PT, ctx);
723	timings(P_224, TIMING_SIMUL, ctx);
724	timings(P_256, TIMING_BASE_PT, ctx);
725	timings(P_256, TIMING_RAND_PT, ctx);
726	timings(P_256, TIMING_SIMUL, ctx);
727	timings(P_384, TIMING_BASE_PT, ctx);
728	timings(P_384, TIMING_RAND_PT, ctx);
729	timings(P_384, TIMING_SIMUL, ctx);
730	timings(P_521, TIMING_BASE_PT, ctx);
731	timings(P_521, TIMING_RAND_PT, ctx);
732	timings(P_521, TIMING_SIMUL, ctx);
733#endif
734
735
736	if (ctx)
737		BN_CTX_free(ctx);
738	BN_free(p); BN_free(a);	BN_free(b);
739	EC_GROUP_free(group);
740	EC_POINT_free(P);
741	EC_POINT_free(Q);
742	EC_POINT_free(R);
743	BN_free(x); BN_free(y); BN_free(z);
744
745	if (P_160) EC_GROUP_free(P_160);
746	if (P_192) EC_GROUP_free(P_192);
747	if (P_224) EC_GROUP_free(P_224);
748	if (P_256) EC_GROUP_free(P_256);
749	if (P_384) EC_GROUP_free(P_384);
750	if (P_521) EC_GROUP_free(P_521);
751
752	}
753
754/* Change test based on whether binary point compression is enabled or not. */
755#ifdef OPENSSL_EC_BIN_PT_COMP
756#define CHAR2_CURVE_TEST_INTERNAL(_name, _p, _a, _b, _x, _y, _y_bit, _order, _cof, _degree, _variable) \
757	if (!BN_hex2bn(&x, _x)) ABORT; \
758	if (!EC_POINT_set_compressed_coordinates_GF2m(group, P, x, _y_bit, ctx)) ABORT; \
759	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT; \
760	if (!BN_hex2bn(&z, _order)) ABORT; \
761	if (!BN_hex2bn(&cof, _cof)) ABORT; \
762	if (!EC_GROUP_set_generator(group, P, z, cof)) ABORT; \
763	if (!EC_POINT_get_affine_coordinates_GF2m(group, P, x, y, ctx)) ABORT; \
764	fprintf(stdout, "\n%s -- Generator:\n     x = 0x", _name); \
765	BN_print_fp(stdout, x); \
766	fprintf(stdout, "\n     y = 0x"); \
767	BN_print_fp(stdout, y); \
768	fprintf(stdout, "\n"); \
769	/* G_y value taken from the standard: */ \
770	if (!BN_hex2bn(&z, _y)) ABORT; \
771	if (0 != BN_cmp(y, z)) ABORT;
772#else
773#define CHAR2_CURVE_TEST_INTERNAL(_name, _p, _a, _b, _x, _y, _y_bit, _order, _cof, _degree, _variable) \
774	if (!BN_hex2bn(&x, _x)) ABORT; \
775	if (!BN_hex2bn(&y, _y)) ABORT; \
776	if (!EC_POINT_set_affine_coordinates_GF2m(group, P, x, y, ctx)) ABORT; \
777	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT; \
778	if (!BN_hex2bn(&z, _order)) ABORT; \
779	if (!BN_hex2bn(&cof, _cof)) ABORT; \
780	if (!EC_GROUP_set_generator(group, P, z, cof)) ABORT; \
781	fprintf(stdout, "\n%s -- Generator:\n     x = 0x", _name); \
782	BN_print_fp(stdout, x); \
783	fprintf(stdout, "\n     y = 0x"); \
784	BN_print_fp(stdout, y); \
785	fprintf(stdout, "\n");
786#endif
787
788#define CHAR2_CURVE_TEST(_name, _p, _a, _b, _x, _y, _y_bit, _order, _cof, _degree, _variable) \
789	if (!BN_hex2bn(&p, _p)) ABORT; \
790	if (!BN_hex2bn(&a, _a)) ABORT; \
791	if (!BN_hex2bn(&b, _b)) ABORT; \
792	if (!EC_GROUP_set_curve_GF2m(group, p, a, b, ctx)) ABORT; \
793	CHAR2_CURVE_TEST_INTERNAL(_name, _p, _a, _b, _x, _y, _y_bit, _order, _cof, _degree, _variable) \
794	fprintf(stdout, "verify degree ..."); \
795	if (EC_GROUP_get_degree(group) != _degree) ABORT; \
796	fprintf(stdout, " ok\n"); \
797	fprintf(stdout, "verify group order ..."); \
798	fflush(stdout); \
799	if (!EC_GROUP_get_order(group, z, ctx)) ABORT; \
800	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT; \
801	if (!EC_POINT_is_at_infinity(group, Q)) ABORT; \
802	fprintf(stdout, "."); \
803	fflush(stdout); \
804	/* if (!EC_GROUP_precompute_mult(group, ctx)) ABORT; */ \
805	if (!EC_POINT_mul(group, Q, z, NULL, NULL, ctx)) ABORT; \
806	if (!EC_POINT_is_at_infinity(group, Q)) ABORT; \
807	fprintf(stdout, " ok\n"); \
808	if (!(_variable = EC_GROUP_new(EC_GROUP_method_of(group)))) ABORT; \
809	if (!EC_GROUP_copy(_variable, group)) ABORT;
810
811void char2_field_tests()
812	{
813	BN_CTX *ctx = NULL;
814	BIGNUM *p, *a, *b;
815	EC_GROUP *group;
816	EC_GROUP *C2_K163 = NULL, *C2_K233 = NULL, *C2_K283 = NULL, *C2_K409 = NULL, *C2_K571 = NULL;
817	EC_GROUP *C2_B163 = NULL, *C2_B233 = NULL, *C2_B283 = NULL, *C2_B409 = NULL, *C2_B571 = NULL;
818	EC_POINT *P, *Q, *R;
819	BIGNUM *x, *y, *z, *cof;
820	unsigned char buf[100];
821	size_t i, len;
822	int k;
823
824#if 1 /* optional */
825	ctx = BN_CTX_new();
826	if (!ctx) ABORT;
827#endif
828
829	p = BN_new();
830	a = BN_new();
831	b = BN_new();
832	if (!p || !a || !b) ABORT;
833
834	if (!BN_hex2bn(&p, "13")) ABORT;
835	if (!BN_hex2bn(&a, "3")) ABORT;
836	if (!BN_hex2bn(&b, "1")) ABORT;
837
838	group = EC_GROUP_new(EC_GF2m_simple_method()); /* applications should use EC_GROUP_new_curve_GF2m
839	                                                * so that the library gets to choose the EC_METHOD */
840	if (!group) ABORT;
841	if (!EC_GROUP_set_curve_GF2m(group, p, a, b, ctx)) ABORT;
842
843	{
844		EC_GROUP *tmp;
845		tmp = EC_GROUP_new(EC_GROUP_method_of(group));
846		if (!tmp) ABORT;
847		if (!EC_GROUP_copy(tmp, group)) ABORT;
848		EC_GROUP_free(group);
849		group = tmp;
850	}
851
852	if (!EC_GROUP_get_curve_GF2m(group, p, a, b, ctx)) ABORT;
853
854	fprintf(stdout, "Curve defined by Weierstrass equation\n     y^2 + x*y = x^3 + a*x^2 + b  (mod 0x");
855	BN_print_fp(stdout, p);
856	fprintf(stdout, ")\n     a = 0x");
857	BN_print_fp(stdout, a);
858	fprintf(stdout, "\n     b = 0x");
859	BN_print_fp(stdout, b);
860	fprintf(stdout, "\n(0x... means binary polynomial)\n");
861
862	P = EC_POINT_new(group);
863	Q = EC_POINT_new(group);
864	R = EC_POINT_new(group);
865	if (!P || !Q || !R) ABORT;
866
867	if (!EC_POINT_set_to_infinity(group, P)) ABORT;
868	if (!EC_POINT_is_at_infinity(group, P)) ABORT;
869
870	buf[0] = 0;
871	if (!EC_POINT_oct2point(group, Q, buf, 1, ctx)) ABORT;
872
873	if (!EC_POINT_add(group, P, P, Q, ctx)) ABORT;
874	if (!EC_POINT_is_at_infinity(group, P)) ABORT;
875
876	x = BN_new();
877	y = BN_new();
878	z = BN_new();
879	cof = BN_new();
880	if (!x || !y || !z || !cof) ABORT;
881
882	if (!BN_hex2bn(&x, "6")) ABORT;
883/* Change test based on whether binary point compression is enabled or not. */
884#ifdef OPENSSL_EC_BIN_PT_COMP
885	if (!EC_POINT_set_compressed_coordinates_GF2m(group, Q, x, 1, ctx)) ABORT;
886#else
887	if (!BN_hex2bn(&y, "8")) ABORT;
888	if (!EC_POINT_set_affine_coordinates_GF2m(group, Q, x, y, ctx)) ABORT;
889#endif
890	if (!EC_POINT_is_on_curve(group, Q, ctx))
891		{
892/* Change test based on whether binary point compression is enabled or not. */
893#ifdef OPENSSL_EC_BIN_PT_COMP
894		if (!EC_POINT_get_affine_coordinates_GF2m(group, Q, x, y, ctx)) ABORT;
895#endif
896		fprintf(stderr, "Point is not on curve: x = 0x");
897		BN_print_fp(stderr, x);
898		fprintf(stderr, ", y = 0x");
899		BN_print_fp(stderr, y);
900		fprintf(stderr, "\n");
901		ABORT;
902		}
903
904	fprintf(stdout, "A cyclic subgroup:\n");
905	k = 100;
906	do
907		{
908		if (k-- == 0) ABORT;
909
910		if (EC_POINT_is_at_infinity(group, P))
911			fprintf(stdout, "     point at infinity\n");
912		else
913			{
914			if (!EC_POINT_get_affine_coordinates_GF2m(group, P, x, y, ctx)) ABORT;
915
916			fprintf(stdout, "     x = 0x");
917			BN_print_fp(stdout, x);
918			fprintf(stdout, ", y = 0x");
919			BN_print_fp(stdout, y);
920			fprintf(stdout, "\n");
921			}
922
923		if (!EC_POINT_copy(R, P)) ABORT;
924		if (!EC_POINT_add(group, P, P, Q, ctx)) ABORT;
925		}
926	while (!EC_POINT_is_at_infinity(group, P));
927
928	if (!EC_POINT_add(group, P, Q, R, ctx)) ABORT;
929	if (!EC_POINT_is_at_infinity(group, P)) ABORT;
930
931/* Change test based on whether binary point compression is enabled or not. */
932#ifdef OPENSSL_EC_BIN_PT_COMP
933	len = EC_POINT_point2oct(group, Q, POINT_CONVERSION_COMPRESSED, buf, sizeof buf, ctx);
934	if (len == 0) ABORT;
935	if (!EC_POINT_oct2point(group, P, buf, len, ctx)) ABORT;
936	if (0 != EC_POINT_cmp(group, P, Q, ctx)) ABORT;
937	fprintf(stdout, "Generator as octet string, compressed form:\n     ");
938	for (i = 0; i < len; i++) fprintf(stdout, "%02X", buf[i]);
939#endif
940
941	len = EC_POINT_point2oct(group, Q, POINT_CONVERSION_UNCOMPRESSED, buf, sizeof buf, ctx);
942	if (len == 0) ABORT;
943	if (!EC_POINT_oct2point(group, P, buf, len, ctx)) ABORT;
944	if (0 != EC_POINT_cmp(group, P, Q, ctx)) ABORT;
945	fprintf(stdout, "\nGenerator as octet string, uncompressed form:\n     ");
946	for (i = 0; i < len; i++) fprintf(stdout, "%02X", buf[i]);
947
948/* Change test based on whether binary point compression is enabled or not. */
949#ifdef OPENSSL_EC_BIN_PT_COMP
950	len = EC_POINT_point2oct(group, Q, POINT_CONVERSION_HYBRID, buf, sizeof buf, ctx);
951	if (len == 0) ABORT;
952	if (!EC_POINT_oct2point(group, P, buf, len, ctx)) ABORT;
953	if (0 != EC_POINT_cmp(group, P, Q, ctx)) ABORT;
954	fprintf(stdout, "\nGenerator as octet string, hybrid form:\n     ");
955	for (i = 0; i < len; i++) fprintf(stdout, "%02X", buf[i]);
956#endif
957
958	fprintf(stdout, "\n");
959
960	if (!EC_POINT_invert(group, P, ctx)) ABORT;
961	if (0 != EC_POINT_cmp(group, P, R, ctx)) ABORT;
962
963
964	/* Curve K-163 (FIPS PUB 186-2, App. 6) */
965	CHAR2_CURVE_TEST
966		(
967		"NIST curve K-163",
968		"0800000000000000000000000000000000000000C9",
969		"1",
970		"1",
971		"02FE13C0537BBC11ACAA07D793DE4E6D5E5C94EEE8",
972		"0289070FB05D38FF58321F2E800536D538CCDAA3D9",
973		1,
974		"04000000000000000000020108A2E0CC0D99F8A5EF",
975		"2",
976		163,
977		C2_K163
978		);
979
980	/* Curve B-163 (FIPS PUB 186-2, App. 6) */
981	CHAR2_CURVE_TEST
982		(
983		"NIST curve B-163",
984		"0800000000000000000000000000000000000000C9",
985		"1",
986		"020A601907B8C953CA1481EB10512F78744A3205FD",
987		"03F0EBA16286A2D57EA0991168D4994637E8343E36",
988		"00D51FBC6C71A0094FA2CDD545B11C5C0C797324F1",
989		1,
990		"040000000000000000000292FE77E70C12A4234C33",
991		"2",
992		163,
993		C2_B163
994		);
995
996	/* Curve K-233 (FIPS PUB 186-2, App. 6) */
997	CHAR2_CURVE_TEST
998		(
999		"NIST curve K-233",
1000		"020000000000000000000000000000000000000004000000000000000001",
1001		"0",
1002		"1",
1003		"017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126",
1004		"01DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3",
1005		0,
1006		"008000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF",
1007		"4",
1008		233,
1009		C2_K233
1010		);
1011
1012	/* Curve B-233 (FIPS PUB 186-2, App. 6) */
1013	CHAR2_CURVE_TEST
1014		(
1015		"NIST curve B-233",
1016		"020000000000000000000000000000000000000004000000000000000001",
1017		"000000000000000000000000000000000000000000000000000000000001",
1018		"0066647EDE6C332C7F8C0923BB58213B333B20E9CE4281FE115F7D8F90AD",
1019		"00FAC9DFCBAC8313BB2139F1BB755FEF65BC391F8B36F8F8EB7371FD558B",
1020		"01006A08A41903350678E58528BEBF8A0BEFF867A7CA36716F7E01F81052",
1021		1,
1022		"01000000000000000000000000000013E974E72F8A6922031D2603CFE0D7",
1023		"2",
1024		233,
1025		C2_B233
1026		);
1027
1028	/* Curve K-283 (FIPS PUB 186-2, App. 6) */
1029	CHAR2_CURVE_TEST
1030		(
1031		"NIST curve K-283",
1032		"0800000000000000000000000000000000000000000000000000000000000000000010A1",
1033		"0",
1034		"1",
1035		"0503213F78CA44883F1A3B8162F188E553CD265F23C1567A16876913B0C2AC2458492836",
1036		"01CCDA380F1C9E318D90F95D07E5426FE87E45C0E8184698E45962364E34116177DD2259",
1037		0,
1038		"01FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE9AE2ED07577265DFF7F94451E061E163C61",
1039		"4",
1040		283,
1041		C2_K283
1042		);
1043
1044	/* Curve B-283 (FIPS PUB 186-2, App. 6) */
1045	CHAR2_CURVE_TEST
1046		(
1047		"NIST curve B-283",
1048		"0800000000000000000000000000000000000000000000000000000000000000000010A1",
1049		"000000000000000000000000000000000000000000000000000000000000000000000001",
1050		"027B680AC8B8596DA5A4AF8A19A0303FCA97FD7645309FA2A581485AF6263E313B79A2F5",
1051		"05F939258DB7DD90E1934F8C70B0DFEC2EED25B8557EAC9C80E2E198F8CDBECD86B12053",
1052		"03676854FE24141CB98FE6D4B20D02B4516FF702350EDDB0826779C813F0DF45BE8112F4",
1053		1,
1054		"03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEF90399660FC938A90165B042A7CEFADB307",
1055		"2",
1056		283,
1057		C2_B283
1058		);
1059
1060	/* Curve K-409 (FIPS PUB 186-2, App. 6) */
1061	CHAR2_CURVE_TEST
1062		(
1063		"NIST curve K-409",
1064		"02000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000001",
1065		"0",
1066		"1",
1067		"0060F05F658F49C1AD3AB1890F7184210EFD0987E307C84C27ACCFB8F9F67CC2C460189EB5AAAA62EE222EB1B35540CFE9023746",
1068		"01E369050B7C4E42ACBA1DACBF04299C3460782F918EA427E6325165E9EA10E3DA5F6C42E9C55215AA9CA27A5863EC48D8E0286B",
1069		1,
1070		"007FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE5F83B2D4EA20400EC4557D5ED3E3E7CA5B4B5C83B8E01E5FCF",
1071		"4",
1072		409,
1073		C2_K409
1074		);
1075
1076	/* Curve B-409 (FIPS PUB 186-2, App. 6) */
1077	CHAR2_CURVE_TEST
1078		(
1079		"NIST curve B-409",
1080		"02000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000001",
1081		"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
1082		"0021A5C2C8EE9FEB5C4B9A753B7B476B7FD6422EF1F3DD674761FA99D6AC27C8A9A197B272822F6CD57A55AA4F50AE317B13545F",
1083		"015D4860D088DDB3496B0C6064756260441CDE4AF1771D4DB01FFE5B34E59703DC255A868A1180515603AEAB60794E54BB7996A7",
1084		"0061B1CFAB6BE5F32BBFA78324ED106A7636B9C5A7BD198D0158AA4F5488D08F38514F1FDF4B4F40D2181B3681C364BA0273C706",
1085		1,
1086		"010000000000000000000000000000000000000000000000000001E2AAD6A612F33307BE5FA47C3C9E052F838164CD37D9A21173",
1087		"2",
1088		409,
1089		C2_B409
1090		);
1091
1092	/* Curve K-571 (FIPS PUB 186-2, App. 6) */
1093	CHAR2_CURVE_TEST
1094		(
1095		"NIST curve K-571",
1096		"80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000425",
1097		"0",
1098		"1",
1099		"026EB7A859923FBC82189631F8103FE4AC9CA2970012D5D46024804801841CA44370958493B205E647DA304DB4CEB08CBBD1BA39494776FB988B47174DCA88C7E2945283A01C8972",
1100		"0349DC807F4FBF374F4AEADE3BCA95314DD58CEC9F307A54FFC61EFC006D8A2C9D4979C0AC44AEA74FBEBBB9F772AEDCB620B01A7BA7AF1B320430C8591984F601CD4C143EF1C7A3",
1101		0,
1102		"020000000000000000000000000000000000000000000000000000000000000000000000131850E1F19A63E4B391A8DB917F4138B630D84BE5D639381E91DEB45CFE778F637C1001",
1103		"4",
1104		571,
1105		C2_K571
1106		);
1107
1108	/* Curve B-571 (FIPS PUB 186-2, App. 6) */
1109	CHAR2_CURVE_TEST
1110		(
1111		"NIST curve B-571",
1112		"80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000425",
1113		"000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001",
1114		"02F40E7E2221F295DE297117B7F3D62F5C6A97FFCB8CEFF1CD6BA8CE4A9A18AD84FFABBD8EFA59332BE7AD6756A66E294AFD185A78FF12AA520E4DE739BACA0C7FFEFF7F2955727A",
1115		"0303001D34B856296C16C0D40D3CD7750A93D1D2955FA80AA5F40FC8DB7B2ABDBDE53950F4C0D293CDD711A35B67FB1499AE60038614F1394ABFA3B4C850D927E1E7769C8EEC2D19",
1116		"037BF27342DA639B6DCCFFFEB73D69D78C6C27A6009CBBCA1980F8533921E8A684423E43BAB08A576291AF8F461BB2A8B3531D2F0485C19B16E2F1516E23DD3C1A4827AF1B8AC15B",
1117		1,
1118		"03FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE661CE18FF55987308059B186823851EC7DD9CA1161DE93D5174D66E8382E9BB2FE84E47",
1119		"2",
1120		571,
1121		C2_B571
1122		);
1123
1124	/* more tests using the last curve */
1125
1126	if (!EC_POINT_copy(Q, P)) ABORT;
1127	if (EC_POINT_is_at_infinity(group, Q)) ABORT;
1128	if (!EC_POINT_dbl(group, P, P, ctx)) ABORT;
1129	if (!EC_POINT_is_on_curve(group, P, ctx)) ABORT;
1130	if (!EC_POINT_invert(group, Q, ctx)) ABORT; /* P = -2Q */
1131
1132	if (!EC_POINT_add(group, R, P, Q, ctx)) ABORT;
1133	if (!EC_POINT_add(group, R, R, Q, ctx)) ABORT;
1134	if (!EC_POINT_is_at_infinity(group, R)) ABORT; /* R = P + 2Q */
1135
1136	{
1137		const EC_POINT *points[3];
1138		const BIGNUM *scalars[3];
1139
1140		if (EC_POINT_is_at_infinity(group, Q)) ABORT;
1141		points[0] = Q;
1142		points[1] = Q;
1143		points[2] = Q;
1144
1145		if (!BN_add(y, z, BN_value_one())) ABORT;
1146		if (BN_is_odd(y)) ABORT;
1147		if (!BN_rshift1(y, y)) ABORT;
1148		scalars[0] = y; /* (group order + 1)/2,  so  y*Q + y*Q = Q */
1149		scalars[1] = y;
1150
1151		fprintf(stdout, "combined multiplication ...");
1152		fflush(stdout);
1153
1154		/* z is still the group order */
1155		if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx)) ABORT;
1156		if (!EC_POINTs_mul(group, R, z, 2, points, scalars, ctx)) ABORT;
1157		if (0 != EC_POINT_cmp(group, P, R, ctx)) ABORT;
1158		if (0 != EC_POINT_cmp(group, R, Q, ctx)) ABORT;
1159
1160		fprintf(stdout, ".");
1161		fflush(stdout);
1162
1163		if (!BN_pseudo_rand(y, BN_num_bits(y), 0, 0)) ABORT;
1164		if (!BN_add(z, z, y)) ABORT;
1165		BN_set_negative(z, 1);
1166		scalars[0] = y;
1167		scalars[1] = z; /* z = -(order + y) */
1168
1169		if (!EC_POINTs_mul(group, P, NULL, 2, points, scalars, ctx)) ABORT;
1170		if (!EC_POINT_is_at_infinity(group, P)) ABORT;
1171
1172		fprintf(stdout, ".");
1173		fflush(stdout);
1174
1175		if (!BN_pseudo_rand(x, BN_num_bits(y) - 1, 0, 0)) ABORT;
1176		if (!BN_add(z, x, y)) ABORT;
1177		BN_set_negative(z, 1);
1178		scalars[0] = x;
1179		scalars[1] = y;
1180		scalars[2] = z; /* z = -(x+y) */
1181
1182		if (!EC_POINTs_mul(group, P, NULL, 3, points, scalars, ctx)) ABORT;
1183		if (!EC_POINT_is_at_infinity(group, P)) ABORT;
1184
1185		fprintf(stdout, " ok\n\n");
1186	}
1187
1188
1189#if 0
1190	timings(C2_K163, TIMING_BASE_PT, ctx);
1191	timings(C2_K163, TIMING_RAND_PT, ctx);
1192	timings(C2_K163, TIMING_SIMUL, ctx);
1193	timings(C2_B163, TIMING_BASE_PT, ctx);
1194	timings(C2_B163, TIMING_RAND_PT, ctx);
1195	timings(C2_B163, TIMING_SIMUL, ctx);
1196	timings(C2_K233, TIMING_BASE_PT, ctx);
1197	timings(C2_K233, TIMING_RAND_PT, ctx);
1198	timings(C2_K233, TIMING_SIMUL, ctx);
1199	timings(C2_B233, TIMING_BASE_PT, ctx);
1200	timings(C2_B233, TIMING_RAND_PT, ctx);
1201	timings(C2_B233, TIMING_SIMUL, ctx);
1202	timings(C2_K283, TIMING_BASE_PT, ctx);
1203	timings(C2_K283, TIMING_RAND_PT, ctx);
1204	timings(C2_K283, TIMING_SIMUL, ctx);
1205	timings(C2_B283, TIMING_BASE_PT, ctx);
1206	timings(C2_B283, TIMING_RAND_PT, ctx);
1207	timings(C2_B283, TIMING_SIMUL, ctx);
1208	timings(C2_K409, TIMING_BASE_PT, ctx);
1209	timings(C2_K409, TIMING_RAND_PT, ctx);
1210	timings(C2_K409, TIMING_SIMUL, ctx);
1211	timings(C2_B409, TIMING_BASE_PT, ctx);
1212	timings(C2_B409, TIMING_RAND_PT, ctx);
1213	timings(C2_B409, TIMING_SIMUL, ctx);
1214	timings(C2_K571, TIMING_BASE_PT, ctx);
1215	timings(C2_K571, TIMING_RAND_PT, ctx);
1216	timings(C2_K571, TIMING_SIMUL, ctx);
1217	timings(C2_B571, TIMING_BASE_PT, ctx);
1218	timings(C2_B571, TIMING_RAND_PT, ctx);
1219	timings(C2_B571, TIMING_SIMUL, ctx);
1220#endif
1221
1222
1223	if (ctx)
1224		BN_CTX_free(ctx);
1225	BN_free(p); BN_free(a);	BN_free(b);
1226	EC_GROUP_free(group);
1227	EC_POINT_free(P);
1228	EC_POINT_free(Q);
1229	EC_POINT_free(R);
1230	BN_free(x); BN_free(y); BN_free(z); BN_free(cof);
1231
1232	if (C2_K163) EC_GROUP_free(C2_K163);
1233	if (C2_B163) EC_GROUP_free(C2_B163);
1234	if (C2_K233) EC_GROUP_free(C2_K233);
1235	if (C2_B233) EC_GROUP_free(C2_B233);
1236	if (C2_K283) EC_GROUP_free(C2_K283);
1237	if (C2_B283) EC_GROUP_free(C2_B283);
1238	if (C2_K409) EC_GROUP_free(C2_K409);
1239	if (C2_B409) EC_GROUP_free(C2_B409);
1240	if (C2_K571) EC_GROUP_free(C2_K571);
1241	if (C2_B571) EC_GROUP_free(C2_B571);
1242
1243	}
1244
1245void internal_curve_test(void)
1246	{
1247	EC_builtin_curve *curves = NULL;
1248	size_t crv_len = 0, n = 0;
1249	int    ok = 1;
1250
1251	crv_len = EC_get_builtin_curves(NULL, 0);
1252
1253	curves = OPENSSL_malloc(sizeof(EC_builtin_curve) * crv_len);
1254
1255	if (curves == NULL)
1256		return;
1257
1258	if (!EC_get_builtin_curves(curves, crv_len))
1259		{
1260		OPENSSL_free(curves);
1261		return;
1262		}
1263
1264	fprintf(stdout, "testing internal curves: ");
1265
1266	for (n = 0; n < crv_len; n++)
1267		{
1268		EC_GROUP *group = NULL;
1269		int nid = curves[n].nid;
1270		if ((group = EC_GROUP_new_by_curve_name(nid)) == NULL)
1271			{
1272			ok = 0;
1273			fprintf(stdout, "\nEC_GROUP_new_curve_name() failed with"
1274				" curve %s\n", OBJ_nid2sn(nid));
1275			/* try next curve */
1276			continue;
1277			}
1278		if (!EC_GROUP_check(group, NULL))
1279			{
1280			ok = 0;
1281			fprintf(stdout, "\nEC_GROUP_check() failed with"
1282				" curve %s\n", OBJ_nid2sn(nid));
1283			EC_GROUP_free(group);
1284			/* try the next curve */
1285			continue;
1286			}
1287		fprintf(stdout, ".");
1288		fflush(stdout);
1289		EC_GROUP_free(group);
1290		}
1291	if (ok)
1292		fprintf(stdout, " ok\n");
1293	else
1294		fprintf(stdout, " failed\n");
1295	OPENSSL_free(curves);
1296	return;
1297	}
1298
1299static const char rnd_seed[] = "string to make the random number generator think it has entropy";
1300
1301int main(int argc, char *argv[])
1302	{
1303
1304	/* enable memory leak checking unless explicitly disabled */
1305	if (!((getenv("OPENSSL_DEBUG_MEMORY") != NULL) && (0 == strcmp(getenv("OPENSSL_DEBUG_MEMORY"), "off"))))
1306		{
1307		CRYPTO_malloc_debug_init();
1308		CRYPTO_set_mem_debug_options(V_CRYPTO_MDEBUG_ALL);
1309		}
1310	else
1311		{
1312		/* OPENSSL_DEBUG_MEMORY=off */
1313		CRYPTO_set_mem_debug_functions(0, 0, 0, 0, 0);
1314		}
1315	CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
1316	ERR_load_crypto_strings();
1317
1318	RAND_seed(rnd_seed, sizeof rnd_seed); /* or BN_generate_prime may fail */
1319
1320	prime_field_tests();
1321	puts("");
1322	char2_field_tests();
1323	/* test the internal curves */
1324	internal_curve_test();
1325
1326#ifndef OPENSSL_NO_ENGINE
1327	ENGINE_cleanup();
1328#endif
1329	CRYPTO_cleanup_all_ex_data();
1330	ERR_free_strings();
1331	ERR_remove_state(0);
1332	CRYPTO_mem_leaks_fp(stderr);
1333
1334	return 0;
1335	}
1336#endif
1337