2 * Copyright 2001-2017 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
11 #include "internal/nelem.h"
15 # include <openssl/ec.h>
16 # ifndef OPENSSL_NO_ENGINE
17 # include <openssl/engine.h>
19 # include <openssl/err.h>
20 # include <openssl/obj_mac.h>
21 # include <openssl/objects.h>
22 # include <openssl/rand.h>
23 # include <openssl/bn.h>
24 # include <openssl/opensslconf.h>
26 # if defined(_MSC_VER) && defined(_MIPS_) && (_MSC_VER/100==12)
27 /* suppress "too big too optimize" warning */
28 # pragma warning(disable:4959)
31 static size_t crv_len
= 0;
32 static EC_builtin_curve
*curves
= NULL
;
34 /* test multiplication with group order, long and negative scalars */
35 static int group_order_tests(EC_GROUP
*group
)
37 BIGNUM
*n1
= NULL
, *n2
= NULL
, *order
= NULL
;
38 EC_POINT
*P
= NULL
, *Q
= NULL
, *R
= NULL
, *S
= NULL
;
42 if (!TEST_ptr(n1
= BN_new())
43 || !TEST_ptr(n2
= BN_new())
44 || !TEST_ptr(order
= BN_new())
45 || !TEST_ptr(ctx
= BN_CTX_new())
46 || !TEST_ptr(P
= EC_POINT_new(group
))
47 || !TEST_ptr(Q
= EC_POINT_new(group
))
48 || !TEST_ptr(R
= EC_POINT_new(group
))
49 || !TEST_ptr(S
= EC_POINT_new(group
)))
52 if (!TEST_true(EC_GROUP_get_order(group
, order
, ctx
))
53 || !TEST_true(EC_POINT_mul(group
, Q
, order
, NULL
, NULL
, ctx
))
54 || !TEST_true(EC_POINT_is_at_infinity(group
, Q
))
55 || !TEST_true(EC_GROUP_precompute_mult(group
, ctx
))
56 || !TEST_true(EC_POINT_mul(group
, Q
, order
, NULL
, NULL
, ctx
))
57 || !TEST_true(EC_POINT_is_at_infinity(group
, Q
)))
60 for (i
= 1; i
<= 2; i
++) {
61 const BIGNUM
*scalars
[6];
62 const EC_POINT
*points
[6];
64 if (!TEST_true(BN_set_word(n1
, i
))
66 * If i == 1, P will be the predefined generator for which
67 * EC_GROUP_precompute_mult has set up precomputation.
69 || !TEST_true(EC_POINT_mul(group
, P
, n1
, NULL
, NULL
, ctx
))
70 || !TEST_true(BN_one(n1
))
72 || !TEST_true(BN_sub(n1
, n1
, order
))
73 || !TEST_true(EC_POINT_mul(group
, Q
, NULL
, P
, n1
, ctx
))
74 || !TEST_int_eq(0, EC_POINT_cmp(group
, Q
, P
, ctx
))
77 || !TEST_true(BN_add(n2
, order
, BN_value_one()))
78 || !TEST_true(EC_POINT_mul(group
, Q
, NULL
, P
, n2
, ctx
))
79 || !TEST_int_eq(0, EC_POINT_cmp(group
, Q
, P
, ctx
))
81 /* n2 = (1 - order) * (1 + order) = 1 - order^2 */
82 || !TEST_true(BN_mul(n2
, n1
, n2
, ctx
))
83 || !TEST_true(EC_POINT_mul(group
, Q
, NULL
, P
, n2
, ctx
))
84 || !TEST_int_eq(0, EC_POINT_cmp(group
, Q
, P
, ctx
)))
87 /* n2 = order^2 - 1 */
88 BN_set_negative(n2
, 0);
89 if (!TEST_true(EC_POINT_mul(group
, Q
, NULL
, P
, n2
, ctx
))
90 /* Add P to verify the result. */
91 || !TEST_true(EC_POINT_add(group
, Q
, Q
, P
, ctx
))
92 || !TEST_true(EC_POINT_is_at_infinity(group
, Q
))
94 /* Exercise EC_POINTs_mul, including corner cases. */
95 || !TEST_false(EC_POINT_is_at_infinity(group
, P
)))
98 scalars
[0] = scalars
[1] = BN_value_one();
99 points
[0] = points
[1] = P
;
101 if (!TEST_true(EC_POINTs_mul(group
, R
, NULL
, 2, points
, scalars
, ctx
))
102 || !TEST_true(EC_POINT_dbl(group
, S
, points
[0], ctx
))
103 || !TEST_int_eq(0, EC_POINT_cmp(group
, R
, S
, ctx
)))
107 points
[0] = Q
; /* => infinity */
109 points
[1] = P
; /* => -P */
111 points
[2] = Q
; /* => infinity */
113 points
[3] = Q
; /* => infinity */
115 points
[4] = P
; /* => P */
117 points
[5] = Q
; /* => infinity */
118 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 6, points
, scalars
, ctx
))
119 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
125 if (r
== 0 && i
!= 0)
126 TEST_info(i
== 1 ? "allowing precomputation" :
127 "without precomputation");
139 static int prime_field_tests(void)
142 BIGNUM
*p
= NULL
, *a
= NULL
, *b
= NULL
, *scalar3
= NULL
;
143 EC_GROUP
*group
= NULL
, *tmp
= NULL
;
144 EC_GROUP
*P_160
= NULL
, *P_192
= NULL
, *P_224
= NULL
,
145 *P_256
= NULL
, *P_384
= NULL
, *P_521
= NULL
;
146 EC_POINT
*P
= NULL
, *Q
= NULL
, *R
= NULL
;
147 BIGNUM
*x
= NULL
, *y
= NULL
, *z
= NULL
, *yplusone
= NULL
;
148 const EC_POINT
*points
[4];
149 const BIGNUM
*scalars
[4];
150 unsigned char buf
[100];
154 if (!TEST_ptr(ctx
= BN_CTX_new())
155 || !TEST_ptr(p
= BN_new())
156 || !TEST_ptr(a
= BN_new())
157 || !TEST_ptr(b
= BN_new())
158 || !TEST_true(BN_hex2bn(&p
, "17"))
159 || !TEST_true(BN_hex2bn(&a
, "1"))
160 || !TEST_true(BN_hex2bn(&b
, "1"))
162 * applications should use EC_GROUP_new_curve_GFp so
163 * that the library gets to choose the EC_METHOD
165 || !TEST_ptr(group
= EC_GROUP_new(EC_GFp_mont_method()))
166 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
167 || !TEST_ptr(tmp
= EC_GROUP_new(EC_GROUP_method_of(group
)))
168 || !TEST_true(EC_GROUP_copy(tmp
, group
)))
170 EC_GROUP_free(group
);
174 if (!TEST_true(EC_GROUP_get_curve_GFp(group
, p
, a
, b
, ctx
)))
177 TEST_info("Curve defined by Weierstrass equation");
178 TEST_note(" y^2 = x^3 + a*x + b (mod p)");
179 test_output_bignum("a", a
);
180 test_output_bignum("b", b
);
181 test_output_bignum("p", p
);
184 if (!TEST_ptr(P
= EC_POINT_new(group
))
185 || !TEST_ptr(Q
= EC_POINT_new(group
))
186 || !TEST_ptr(R
= EC_POINT_new(group
))
187 || !TEST_true(EC_POINT_set_to_infinity(group
, P
))
188 || !TEST_true(EC_POINT_is_at_infinity(group
, P
))
189 || !TEST_true(EC_POINT_oct2point(group
, Q
, buf
, 1, ctx
))
190 || !TEST_true(EC_POINT_add(group
, P
, P
, Q
, ctx
))
191 || !TEST_true(EC_POINT_is_at_infinity(group
, P
))
192 || !TEST_ptr(x
= BN_new())
193 || !TEST_ptr(y
= BN_new())
194 || !TEST_ptr(z
= BN_new())
195 || !TEST_ptr(yplusone
= BN_new())
196 || !TEST_true(BN_hex2bn(&x
, "D"))
197 || !TEST_true(EC_POINT_set_compressed_coordinates_GFp(group
, Q
, x
, 1,
201 if (!TEST_int_gt(EC_POINT_is_on_curve(group
, Q
, ctx
), 0)) {
202 if (!TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, Q
, x
, y
,
205 TEST_info("Point is not on curve");
206 test_output_bignum("x", x
);
207 test_output_bignum("y", y
);
211 TEST_note("A cyclic subgroup:");
214 if (!TEST_int_ne(k
--, 0))
217 if (EC_POINT_is_at_infinity(group
, P
)) {
218 TEST_note(" point at infinity");
220 if (!TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
,
224 test_output_bignum("x", x
);
225 test_output_bignum("y", y
);
228 if (!TEST_true(EC_POINT_copy(R
, P
))
229 || !TEST_true(EC_POINT_add(group
, P
, P
, Q
, ctx
)))
232 } while (!EC_POINT_is_at_infinity(group
, P
));
234 if (!TEST_true(EC_POINT_add(group
, P
, Q
, R
, ctx
))
235 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
239 EC_POINT_point2oct(group
, Q
, POINT_CONVERSION_COMPRESSED
, buf
,
241 if (!TEST_size_t_ne(len
, 0)
242 || !TEST_true(EC_POINT_oct2point(group
, P
, buf
, len
, ctx
))
243 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, Q
, ctx
)))
245 test_output_memory("Generator as octet string, compressed form:",
248 len
= EC_POINT_point2oct(group
, Q
, POINT_CONVERSION_UNCOMPRESSED
,
249 buf
, sizeof buf
, ctx
);
250 if (!TEST_size_t_ne(len
, 0)
251 || !TEST_true(EC_POINT_oct2point(group
, P
, buf
, len
, ctx
))
252 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, Q
, ctx
)))
254 test_output_memory("Generator as octet string, uncompressed form:",
257 len
= EC_POINT_point2oct(group
, Q
, POINT_CONVERSION_HYBRID
,
258 buf
, sizeof buf
, ctx
);
259 if (!TEST_size_t_ne(len
, 0)
260 || !TEST_true(EC_POINT_oct2point(group
, P
, buf
, len
, ctx
))
261 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, Q
, ctx
)))
263 test_output_memory("Generator as octet string, hybrid form:",
266 if (!TEST_true(EC_POINT_get_Jprojective_coordinates_GFp(group
, R
, x
, y
, z
,
269 TEST_info("A representation of the inverse of that generator in");
270 TEST_note("Jacobian projective coordinates");
271 test_output_bignum("x", x
);
272 test_output_bignum("y", y
);
273 test_output_bignum("z", z
);
275 if (!TEST_true(EC_POINT_invert(group
, P
, ctx
))
276 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, R
, ctx
))
279 * Curve secp160r1 (Certicom Research SEC 2 Version 1.0, section 2.4.2,
280 * 2000) -- not a NIST curve, but commonly used
283 || !TEST_true(BN_hex2bn(&p
, "FFFFFFFF"
284 "FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF"))
285 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
286 || !TEST_true(BN_hex2bn(&a
, "FFFFFFFF"
287 "FFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC"))
288 || !TEST_true(BN_hex2bn(&b
, "1C97BEFC"
289 "54BD7A8B65ACF89F81D4D4ADC565FA45"))
290 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
291 || !TEST_true(BN_hex2bn(&x
, "4A96B568"
292 "8EF573284664698968C38BB913CBFC82"))
293 || !TEST_true(BN_hex2bn(&y
, "23a62855"
294 "3168947d59dcc912042351377ac5fb32"))
295 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
297 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
298 * and therefore setting the coordinates should fail.
300 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
,
302 || !TEST_true(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
, y
, ctx
))
303 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
304 || !TEST_true(BN_hex2bn(&z
, "0100000000"
305 "000000000001F4C8F927AED3CA752257"))
306 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, BN_value_one()))
307 || !TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
, ctx
)))
309 TEST_info("SEC2 curve secp160r1 -- Generator");
310 test_output_bignum("x", x
);
311 test_output_bignum("y", y
);
312 /* G_y value taken from the standard: */
313 if (!TEST_true(BN_hex2bn(&z
, "23a62855"
314 "3168947d59dcc912042351377ac5fb32"))
316 || !TEST_int_eq(EC_GROUP_get_degree(group
), 160)
317 || !group_order_tests(group
)
318 || !TEST_ptr(P_160
= EC_GROUP_new(EC_GROUP_method_of(group
)))
319 || !TEST_true(EC_GROUP_copy(P_160
, group
))
321 /* Curve P-192 (FIPS PUB 186-2, App. 6) */
323 || !TEST_true(BN_hex2bn(&p
, "FFFFFFFFFFFFFFFF"
324 "FFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF"))
325 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
326 || !TEST_true(BN_hex2bn(&a
, "FFFFFFFFFFFFFFFF"
327 "FFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC"))
328 || !TEST_true(BN_hex2bn(&b
, "64210519E59C80E7"
329 "0FA7E9AB72243049FEB8DEECC146B9B1"))
330 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
331 || !TEST_true(BN_hex2bn(&x
, "188DA80EB03090F6"
332 "7CBF20EB43A18800F4FF0AFD82FF1012"))
333 || !TEST_true(EC_POINT_set_compressed_coordinates_GFp(group
, P
, x
, 1,
335 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
336 || !TEST_true(BN_hex2bn(&z
, "FFFFFFFFFFFFFFFF"
337 "FFFFFFFF99DEF836146BC9B1B4D22831"))
338 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, BN_value_one()))
339 || !TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
, ctx
)))
342 TEST_info("NIST curve P-192 -- Generator");
343 test_output_bignum("x", x
);
344 test_output_bignum("y", y
);
345 /* G_y value taken from the standard: */
346 if (!TEST_true(BN_hex2bn(&z
, "07192B95FFC8DA78"
347 "631011ED6B24CDD573F977A11E794811"))
349 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
351 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
352 * and therefore setting the coordinates should fail.
354 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
,
356 || !TEST_int_eq(EC_GROUP_get_degree(group
), 192)
357 || !group_order_tests(group
)
358 || !TEST_ptr(P_192
= EC_GROUP_new(EC_GROUP_method_of(group
)))
359 || !TEST_true(EC_GROUP_copy(P_192
, group
))
361 /* Curve P-224 (FIPS PUB 186-2, App. 6) */
363 || !TEST_true(BN_hex2bn(&p
, "FFFFFFFFFFFFFFFFFFFFFFFF"
364 "FFFFFFFF000000000000000000000001"))
365 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
366 || !TEST_true(BN_hex2bn(&a
, "FFFFFFFFFFFFFFFFFFFFFFFF"
367 "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE"))
368 || !TEST_true(BN_hex2bn(&b
, "B4050A850C04B3ABF5413256"
369 "5044B0B7D7BFD8BA270B39432355FFB4"))
370 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
371 || !TEST_true(BN_hex2bn(&x
, "B70E0CBD6BB4BF7F321390B9"
372 "4A03C1D356C21122343280D6115C1D21"))
373 || !TEST_true(EC_POINT_set_compressed_coordinates_GFp(group
, P
, x
, 0,
375 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
376 || !TEST_true(BN_hex2bn(&z
, "FFFFFFFFFFFFFFFFFFFFFFFF"
377 "FFFF16A2E0B8F03E13DD29455C5C2A3D"))
378 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, BN_value_one()))
379 || !TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
, ctx
)))
382 TEST_info("NIST curve P-224 -- Generator");
383 test_output_bignum("x", x
);
384 test_output_bignum("y", y
);
385 /* G_y value taken from the standard: */
386 if (!TEST_true(BN_hex2bn(&z
, "BD376388B5F723FB4C22DFE6"
387 "CD4375A05A07476444D5819985007E34"))
389 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
391 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
392 * and therefore setting the coordinates should fail.
394 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
,
396 || !TEST_int_eq(EC_GROUP_get_degree(group
), 224)
397 || !group_order_tests(group
)
398 || !TEST_ptr(P_224
= EC_GROUP_new(EC_GROUP_method_of(group
)))
399 || !TEST_true(EC_GROUP_copy(P_224
, group
))
401 /* Curve P-256 (FIPS PUB 186-2, App. 6) */
403 || !TEST_true(BN_hex2bn(&p
, "FFFFFFFF000000010000000000000000"
404 "00000000FFFFFFFFFFFFFFFFFFFFFFFF"))
405 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
406 || !TEST_true(BN_hex2bn(&a
, "FFFFFFFF000000010000000000000000"
407 "00000000FFFFFFFFFFFFFFFFFFFFFFFC"))
408 || !TEST_true(BN_hex2bn(&b
, "5AC635D8AA3A93E7B3EBBD55769886BC"
409 "651D06B0CC53B0F63BCE3C3E27D2604B"))
410 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
412 || !TEST_true(BN_hex2bn(&x
, "6B17D1F2E12C4247F8BCE6E563A440F2"
413 "77037D812DEB33A0F4A13945D898C296"))
414 || !TEST_true(EC_POINT_set_compressed_coordinates_GFp(group
, P
, x
, 1,
416 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
417 || !TEST_true(BN_hex2bn(&z
, "FFFFFFFF00000000FFFFFFFFFFFFFFFF"
418 "BCE6FAADA7179E84F3B9CAC2FC632551"))
419 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, BN_value_one()))
420 || !TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
, ctx
)))
423 TEST_info("NIST curve P-256 -- Generator");
424 test_output_bignum("x", x
);
425 test_output_bignum("y", y
);
426 /* G_y value taken from the standard: */
427 if (!TEST_true(BN_hex2bn(&z
, "4FE342E2FE1A7F9B8EE7EB4A7C0F9E16"
428 "2BCE33576B315ECECBB6406837BF51F5"))
430 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
432 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
433 * and therefore setting the coordinates should fail.
435 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
,
437 || !TEST_int_eq(EC_GROUP_get_degree(group
), 256)
438 || !group_order_tests(group
)
439 || !TEST_ptr(P_256
= EC_GROUP_new(EC_GROUP_method_of(group
)))
440 || !TEST_true(EC_GROUP_copy(P_256
, group
))
442 /* Curve P-384 (FIPS PUB 186-2, App. 6) */
444 || !TEST_true(BN_hex2bn(&p
, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
445 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
446 "FFFFFFFF0000000000000000FFFFFFFF"))
447 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
448 || !TEST_true(BN_hex2bn(&a
, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
449 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE"
450 "FFFFFFFF0000000000000000FFFFFFFC"))
451 || !TEST_true(BN_hex2bn(&b
, "B3312FA7E23EE7E4988E056BE3F82D19"
452 "181D9C6EFE8141120314088F5013875A"
453 "C656398D8A2ED19D2A85C8EDD3EC2AEF"))
454 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
456 || !TEST_true(BN_hex2bn(&x
, "AA87CA22BE8B05378EB1C71EF320AD74"
457 "6E1D3B628BA79B9859F741E082542A38"
458 "5502F25DBF55296C3A545E3872760AB7"))
459 || !TEST_true(EC_POINT_set_compressed_coordinates_GFp(group
, P
, x
, 1,
461 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
462 || !TEST_true(BN_hex2bn(&z
, "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
463 "FFFFFFFFFFFFFFFFC7634D81F4372DDF"
464 "581A0DB248B0A77AECEC196ACCC52973"))
465 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, BN_value_one()))
466 || !TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
, ctx
)))
469 TEST_info("NIST curve P-384 -- Generator");
470 test_output_bignum("x", x
);
471 test_output_bignum("y", y
);
472 /* G_y value taken from the standard: */
473 if (!TEST_true(BN_hex2bn(&z
, "3617DE4A96262C6F5D9E98BF9292DC29"
474 "F8F41DBD289A147CE9DA3113B5F0B8C0"
475 "0A60B1CE1D7E819D7A431D7C90EA0E5F"))
477 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
479 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
480 * and therefore setting the coordinates should fail.
482 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
,
484 || !TEST_int_eq(EC_GROUP_get_degree(group
), 384)
485 || !group_order_tests(group
)
486 || !TEST_ptr(P_384
= EC_GROUP_new(EC_GROUP_method_of(group
)))
487 || !TEST_true(EC_GROUP_copy(P_384
, group
))
489 /* Curve P-521 (FIPS PUB 186-2, App. 6) */
490 || !TEST_true(BN_hex2bn(&p
, "1FF"
491 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
492 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
493 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
494 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"))
495 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
496 || !TEST_true(BN_hex2bn(&a
, "1FF"
497 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
498 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
499 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
500 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC"))
501 || !TEST_true(BN_hex2bn(&b
, "051"
502 "953EB9618E1C9A1F929A21A0B68540EE"
503 "A2DA725B99B315F3B8B489918EF109E1"
504 "56193951EC7E937B1652C0BD3BB1BF07"
505 "3573DF883D2C34F1EF451FD46B503F00"))
506 || !TEST_true(EC_GROUP_set_curve_GFp(group
, p
, a
, b
, ctx
))
507 || !TEST_true(BN_hex2bn(&x
, "C6"
508 "858E06B70404E9CD9E3ECB662395B442"
509 "9C648139053FB521F828AF606B4D3DBA"
510 "A14B5E77EFE75928FE1DC127A2FFA8DE"
511 "3348B3C1856A429BF97E7E31C2E5BD66"))
512 || !TEST_true(EC_POINT_set_compressed_coordinates_GFp(group
, P
, x
, 0,
514 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
515 || !TEST_true(BN_hex2bn(&z
, "1FF"
516 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
517 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA"
518 "51868783BF2F966B7FCC0148F709A5D0"
519 "3BB5C9B8899C47AEBB6FB71E91386409"))
520 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, BN_value_one()))
521 || !TEST_true(EC_POINT_get_affine_coordinates_GFp(group
, P
, x
, y
, ctx
)))
524 TEST_info("NIST curve P-521 -- Generator");
525 test_output_bignum("x", x
);
526 test_output_bignum("y", y
);
527 /* G_y value taken from the standard: */
528 if (!TEST_true(BN_hex2bn(&z
, "118"
529 "39296A789A3BC0045C8A5FB42C7D1BD9"
530 "98F54449579B446817AFBD17273E662C"
531 "97EE72995EF42640C550B9013FAD0761"
532 "353C7086A272C24088BE94769FD16650"))
534 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
536 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
537 * and therefore setting the coordinates should fail.
539 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
,
541 || !TEST_int_eq(EC_GROUP_get_degree(group
), 521)
542 || !group_order_tests(group
)
543 || !TEST_ptr(P_521
= EC_GROUP_new(EC_GROUP_method_of(group
)))
544 || !TEST_true(EC_GROUP_copy(P_521
, group
))
546 /* more tests using the last curve */
548 /* Restore the point that got mangled in the (x, y + 1) test. */
549 || !TEST_true(EC_POINT_set_affine_coordinates_GFp(group
, P
, x
, y
, ctx
))
550 || !TEST_true(EC_POINT_copy(Q
, P
))
551 || !TEST_false(EC_POINT_is_at_infinity(group
, Q
))
552 || !TEST_true(EC_POINT_dbl(group
, P
, P
, ctx
))
553 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
554 || !TEST_true(EC_POINT_invert(group
, Q
, ctx
)) /* P = -2Q */
555 || !TEST_true(EC_POINT_add(group
, R
, P
, Q
, ctx
))
556 || !TEST_true(EC_POINT_add(group
, R
, R
, Q
, ctx
))
557 || !TEST_true(EC_POINT_is_at_infinity(group
, R
)) /* R = P + 2Q */
558 || !TEST_false(EC_POINT_is_at_infinity(group
, Q
)))
565 if (!TEST_true(EC_GROUP_get_order(group
, z
, ctx
))
566 || !TEST_true(BN_add(y
, z
, BN_value_one()))
568 || !TEST_true(BN_rshift1(y
, y
)))
570 scalars
[0] = y
; /* (group order + 1)/2, so y*Q + y*Q = Q */
573 TEST_note("combined multiplication ...");
575 /* z is still the group order */
576 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 2, points
, scalars
, ctx
))
577 || !TEST_true(EC_POINTs_mul(group
, R
, z
, 2, points
, scalars
, ctx
))
578 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, R
, ctx
))
579 || !TEST_int_eq(0, EC_POINT_cmp(group
, R
, Q
, ctx
))
580 || !TEST_true(BN_rand(y
, BN_num_bits(y
), 0, 0))
581 || !TEST_true(BN_add(z
, z
, y
)))
583 BN_set_negative(z
, 1);
585 scalars
[1] = z
; /* z = -(order + y) */
587 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 2, points
, scalars
, ctx
))
588 || !TEST_true(EC_POINT_is_at_infinity(group
, P
))
589 || !TEST_true(BN_rand(x
, BN_num_bits(y
) - 1, 0, 0))
590 || !TEST_true(BN_add(z
, x
, y
)))
592 BN_set_negative(z
, 1);
595 scalars
[2] = z
; /* z = -(x+y) */
597 if (!TEST_ptr(scalar3
= BN_new()))
600 scalars
[3] = scalar3
;
602 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 4, points
, scalars
, ctx
))
603 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
615 EC_GROUP_free(group
);
626 EC_GROUP_free(P_160
);
627 EC_GROUP_free(P_192
);
628 EC_GROUP_free(P_224
);
629 EC_GROUP_free(P_256
);
630 EC_GROUP_free(P_384
);
631 EC_GROUP_free(P_521
);
635 # ifndef OPENSSL_NO_EC2M
637 static struct c2_curve_test
{
648 } char2_curve_tests
[] = {
649 /* Curve K-163 (FIPS PUB 186-2, App. 6) */
652 "0800000000000000000000000000000000000000C9",
655 "02FE13C0537BBC11ACAA07D793DE4E6D5E5C94EEE8",
656 "0289070FB05D38FF58321F2E800536D538CCDAA3D9",
657 1, "04000000000000000000020108A2E0CC0D99F8A5EF", "2", 163
659 /* Curve B-163 (FIPS PUB 186-2, App. 6) */
662 "0800000000000000000000000000000000000000C9",
664 "020A601907B8C953CA1481EB10512F78744A3205FD",
665 "03F0EBA16286A2D57EA0991168D4994637E8343E36",
666 "00D51FBC6C71A0094FA2CDD545B11C5C0C797324F1",
667 1, "040000000000000000000292FE77E70C12A4234C33", "2", 163
669 /* Curve K-233 (FIPS PUB 186-2, App. 6) */
672 "020000000000000000000000000000000000000004000000000000000001",
675 "017232BA853A7E731AF129F22FF4149563A419C26BF50A4C9D6EEFAD6126",
676 "01DB537DECE819B7F70F555A67C427A8CD9BF18AEB9B56E0C11056FAE6A3",
678 "008000000000000000000000000000069D5BB915BCD46EFB1AD5F173ABDF",
681 /* Curve B-233 (FIPS PUB 186-2, App. 6) */
684 "020000000000000000000000000000000000000004000000000000000001",
685 "000000000000000000000000000000000000000000000000000000000001",
686 "0066647EDE6C332C7F8C0923BB58213B333B20E9CE4281FE115F7D8F90AD",
687 "00FAC9DFCBAC8313BB2139F1BB755FEF65BC391F8B36F8F8EB7371FD558B",
688 "01006A08A41903350678E58528BEBF8A0BEFF867A7CA36716F7E01F81052",
690 "01000000000000000000000000000013E974E72F8A6922031D2603CFE0D7",
693 /* Curve K-283 (FIPS PUB 186-2, App. 6) */
697 "00000000000000000000000000000000000000000000000000000000000010A1",
701 "78CA44883F1A3B8162F188E553CD265F23C1567A16876913B0C2AC2458492836",
703 "0F1C9E318D90F95D07E5426FE87E45C0E8184698E45962364E34116177DD2259",
706 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFE9AE2ED07577265DFF7F94451E061E163C61",
709 /* Curve B-283 (FIPS PUB 186-2, App. 6) */
713 "00000000000000000000000000000000000000000000000000000000000010A1",
715 "0000000000000000000000000000000000000000000000000000000000000001",
717 "C8B8596DA5A4AF8A19A0303FCA97FD7645309FA2A581485AF6263E313B79A2F5",
719 "8DB7DD90E1934F8C70B0DFEC2EED25B8557EAC9C80E2E198F8CDBECD86B12053",
721 "FE24141CB98FE6D4B20D02B4516FF702350EDDB0826779C813F0DF45BE8112F4",
724 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFEF90399660FC938A90165B042A7CEFADB307",
727 /* Curve K-409 (FIPS PUB 186-2, App. 6) */
730 "0200000000000000000000000000000000000000"
731 "0000000000000000000000000000000000000000008000000000000000000001",
734 "0060F05F658F49C1AD3AB1890F7184210EFD0987"
735 "E307C84C27ACCFB8F9F67CC2C460189EB5AAAA62EE222EB1B35540CFE9023746",
736 "01E369050B7C4E42ACBA1DACBF04299C3460782F"
737 "918EA427E6325165E9EA10E3DA5F6C42E9C55215AA9CA27A5863EC48D8E0286B",
739 "007FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
740 "FFFFFFFFFFFFFE5F83B2D4EA20400EC4557D5ED3E3E7CA5B4B5C83B8E01E5FCF",
743 /* Curve B-409 (FIPS PUB 186-2, App. 6) */
746 "0200000000000000000000000000000000000000"
747 "0000000000000000000000000000000000000000008000000000000000000001",
748 "0000000000000000000000000000000000000000"
749 "0000000000000000000000000000000000000000000000000000000000000001",
750 "0021A5C2C8EE9FEB5C4B9A753B7B476B7FD6422E"
751 "F1F3DD674761FA99D6AC27C8A9A197B272822F6CD57A55AA4F50AE317B13545F",
752 "015D4860D088DDB3496B0C6064756260441CDE4A"
753 "F1771D4DB01FFE5B34E59703DC255A868A1180515603AEAB60794E54BB7996A7",
754 "0061B1CFAB6BE5F32BBFA78324ED106A7636B9C5"
755 "A7BD198D0158AA4F5488D08F38514F1FDF4B4F40D2181B3681C364BA0273C706",
757 "0100000000000000000000000000000000000000"
758 "00000000000001E2AAD6A612F33307BE5FA47C3C9E052F838164CD37D9A21173",
761 /* Curve K-571 (FIPS PUB 186-2, App. 6) */
765 "0000000000000000000000000000000000000000000000000000000000000000"
766 "0000000000000000000000000000000000000000000000000000000000000425",
770 "82189631F8103FE4AC9CA2970012D5D46024804801841CA44370958493B205E6"
771 "47DA304DB4CEB08CBBD1BA39494776FB988B47174DCA88C7E2945283A01C8972",
773 "4F4AEADE3BCA95314DD58CEC9F307A54FFC61EFC006D8A2C9D4979C0AC44AEA7"
774 "4FBEBBB9F772AEDCB620B01A7BA7AF1B320430C8591984F601CD4C143EF1C7A3",
777 "00000000000000000000000000000000000000000000000000000000131850E1"
778 "F19A63E4B391A8DB917F4138B630D84BE5D639381E91DEB45CFE778F637C1001",
781 /* Curve B-571 (FIPS PUB 186-2, App. 6) */
785 "0000000000000000000000000000000000000000000000000000000000000000"
786 "0000000000000000000000000000000000000000000000000000000000000425",
788 "0000000000000000000000000000000000000000000000000000000000000000"
789 "0000000000000000000000000000000000000000000000000000000000000001",
791 "DE297117B7F3D62F5C6A97FFCB8CEFF1CD6BA8CE4A9A18AD84FFABBD8EFA5933"
792 "2BE7AD6756A66E294AFD185A78FF12AA520E4DE739BACA0C7FFEFF7F2955727A",
794 "6C16C0D40D3CD7750A93D1D2955FA80AA5F40FC8DB7B2ABDBDE53950F4C0D293"
795 "CDD711A35B67FB1499AE60038614F1394ABFA3B4C850D927E1E7769C8EEC2D19",
797 "6DCCFFFEB73D69D78C6C27A6009CBBCA1980F8533921E8A684423E43BAB08A57"
798 "6291AF8F461BB2A8B3531D2F0485C19B16E2F1516E23DD3C1A4827AF1B8AC15B",
801 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFE661CE18"
802 "FF55987308059B186823851EC7DD9CA1161DE93D5174D66E8382E9BB2FE84E47",
807 static int char2_curve_test(int n
)
811 BIGNUM
*p
= NULL
, *a
= NULL
, *b
= NULL
;
812 BIGNUM
*x
= NULL
, *y
= NULL
, *z
= NULL
, *cof
= NULL
, *yplusone
= NULL
;
813 EC_GROUP
*group
= NULL
, *variable
= NULL
;
814 EC_POINT
*P
= NULL
, *Q
= NULL
, *R
= NULL
;
815 const EC_POINT
*points
[3];
816 const BIGNUM
*scalars
[3];
817 struct c2_curve_test
*const test
= char2_curve_tests
+ n
;
819 if (!TEST_ptr(ctx
= BN_CTX_new())
820 || !TEST_ptr(p
= BN_new())
821 || !TEST_ptr(a
= BN_new())
822 || !TEST_ptr(b
= BN_new())
823 || !TEST_ptr(x
= BN_new())
824 || !TEST_ptr(y
= BN_new())
825 || !TEST_ptr(z
= BN_new())
826 || !TEST_ptr(yplusone
= BN_new())
827 || !TEST_true(BN_hex2bn(&p
, test
->p
))
828 || !TEST_true(BN_hex2bn(&a
, test
->a
))
829 || !TEST_true(BN_hex2bn(&b
, test
->b
))
830 || !TEST_true(group
= EC_GROUP_new(EC_GF2m_simple_method()))
831 || !TEST_true(EC_GROUP_set_curve_GF2m(group
, p
, a
, b
, ctx
))
832 || !TEST_ptr(P
= EC_POINT_new(group
))
833 || !TEST_ptr(Q
= EC_POINT_new(group
))
834 || !TEST_ptr(R
= EC_POINT_new(group
))
835 || !TEST_true(BN_hex2bn(&x
, test
->x
))
836 || !TEST_true(BN_hex2bn(&y
, test
->y
))
837 || !TEST_true(BN_add(yplusone
, y
, BN_value_one())))
840 /* Change test based on whether binary point compression is enabled or not. */
841 # ifdef OPENSSL_EC_BIN_PT_COMP
843 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
844 * and therefore setting the coordinates should fail.
846 if (!TEST_false(EC_POINT_set_affine_coordinates_GF2m(group
, P
, x
, yplusone
,
848 || !TEST_true(EC_POINT_set_compressed_coordinates_GF2m(group
, P
, x
,
851 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
852 || !TEST_true(BN_hex2bn(&z
, test
->order
))
853 || !TEST_true(BN_hex2bn(&cof
, test
->cof
))
854 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, cof
))
855 || !TEST_true(EC_POINT_get_affine_coordinates_GF2m(group
, P
, x
, y
,
858 TEST_info("%s -- Generator", test
->name
);
859 test_output_bignum("x", x
);
860 test_output_bignum("y", y
);
861 /* G_y value taken from the standard: */
862 if (!TEST_true(BN_hex2bn(&z
, test
->y
))
863 || !TEST_BN_eq(y
, z
))
867 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
868 * and therefore setting the coordinates should fail.
870 if (!TEST_false(EC_POINT_set_affine_coordinates_GF2m(group
, P
, x
, yplusone
,
872 || !TEST_true(EC_POINT_set_affine_coordinates_GF2m(group
, P
, x
, y
, ctx
))
873 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
874 || !TEST_true(BN_hex2bn(&z
, test
->order
))
875 || !TEST_true(BN_hex2bn(&cof
, test
->cof
))
876 || !TEST_true(EC_GROUP_set_generator(group
, P
, z
, cof
)))
878 TEST_info("%s -- Generator:", test
->name
);
879 test_output_bignum("x", x
);
880 test_output_bignum("y", y
);
883 if (!TEST_int_eq(EC_GROUP_get_degree(group
), test
->degree
)
884 || !group_order_tests(group
)
885 || !TEST_ptr(variable
= EC_GROUP_new(EC_GROUP_method_of(group
)))
886 || !TEST_true(EC_GROUP_copy(variable
, group
)))
889 /* more tests using the last curve */
890 if (n
== OSSL_NELEM(char2_curve_tests
) - 1) {
891 if (!TEST_true(EC_POINT_set_affine_coordinates_GF2m(group
, P
, x
, y
,
893 || !TEST_true(EC_POINT_copy(Q
, P
))
894 || !TEST_false(EC_POINT_is_at_infinity(group
, Q
))
895 || !TEST_true(EC_POINT_dbl(group
, P
, P
, ctx
))
896 || !TEST_int_gt(EC_POINT_is_on_curve(group
, P
, ctx
), 0)
897 || !TEST_true(EC_POINT_invert(group
, Q
, ctx
)) /* P = -2Q */
898 || !TEST_true(EC_POINT_add(group
, R
, P
, Q
, ctx
))
899 || !TEST_true(EC_POINT_add(group
, R
, R
, Q
, ctx
))
900 || !TEST_true(EC_POINT_is_at_infinity(group
, R
)) /* R = P + 2Q */
901 || !TEST_false(EC_POINT_is_at_infinity(group
, Q
)))
908 if (!TEST_true(BN_add(y
, z
, BN_value_one()))
910 || !TEST_true(BN_rshift1(y
, y
)))
912 scalars
[0] = y
; /* (group order + 1)/2, so y*Q + y*Q = Q */
915 TEST_note("combined multiplication ...");
917 /* z is still the group order */
918 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 2, points
, scalars
, ctx
))
919 || !TEST_true(EC_POINTs_mul(group
, R
, z
, 2, points
, scalars
, ctx
))
920 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, R
, ctx
))
921 || !TEST_int_eq(0, EC_POINT_cmp(group
, R
, Q
, ctx
)))
924 if (!TEST_true(BN_rand(y
, BN_num_bits(y
), 0, 0))
925 || !TEST_true(BN_add(z
, z
, y
)))
927 BN_set_negative(z
, 1);
929 scalars
[1] = z
; /* z = -(order + y) */
931 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 2, points
, scalars
, ctx
))
932 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
935 if (!TEST_true(BN_rand(x
, BN_num_bits(y
) - 1, 0, 0))
936 || !TEST_true(BN_add(z
, x
, y
)))
938 BN_set_negative(z
, 1);
941 scalars
[2] = z
; /* z = -(x+y) */
943 if (!TEST_true(EC_POINTs_mul(group
, P
, NULL
, 3, points
, scalars
, ctx
))
944 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
962 EC_GROUP_free(group
);
963 EC_GROUP_free(variable
);
967 static int char2_field_tests(void)
970 BIGNUM
*p
= NULL
, *a
= NULL
, *b
= NULL
;
971 EC_GROUP
*group
= NULL
, *tmp
= NULL
;
972 EC_POINT
*P
= NULL
, *Q
= NULL
, *R
= NULL
;
973 BIGNUM
*x
= NULL
, *y
= NULL
, *z
= NULL
, *cof
= NULL
, *yplusone
= NULL
;
974 unsigned char buf
[100];
978 if (!TEST_ptr(ctx
= BN_CTX_new())
979 || !TEST_ptr(p
= BN_new())
980 || !TEST_ptr(a
= BN_new())
981 || !TEST_ptr(b
= BN_new())
982 || !TEST_true(BN_hex2bn(&p
, "13"))
983 || !TEST_true(BN_hex2bn(&a
, "3"))
984 || !TEST_true(BN_hex2bn(&b
, "1")))
987 group
= EC_GROUP_new(EC_GF2m_simple_method()); /* applications should use
988 * EC_GROUP_new_curve_GF2m
989 * so that the library gets
990 * to choose the EC_METHOD */
992 || !TEST_true(EC_GROUP_set_curve_GF2m(group
, p
, a
, b
, ctx
))
993 || !TEST_ptr(tmp
= EC_GROUP_new(EC_GROUP_method_of(group
)))
994 || !TEST_true(EC_GROUP_copy(tmp
, group
)))
996 EC_GROUP_free(group
);
1000 if (!TEST_true(EC_GROUP_get_curve_GF2m(group
, p
, a
, b
, ctx
)))
1003 TEST_info("Curve defined by Weierstrass equation");
1004 TEST_note(" y^2 + x*y = x^3 + a*x^2 + b (mod p)");
1005 test_output_bignum("a", a
);
1006 test_output_bignum("b", b
);
1007 test_output_bignum("p", p
);
1009 if (!TEST_ptr(P
= EC_POINT_new(group
))
1010 || !TEST_ptr(Q
= EC_POINT_new(group
))
1011 || !TEST_ptr(R
= EC_POINT_new(group
))
1012 || !TEST_true(EC_POINT_set_to_infinity(group
, P
))
1013 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
1017 if (!TEST_true(EC_POINT_oct2point(group
, Q
, buf
, 1, ctx
))
1018 || !TEST_true(EC_POINT_add(group
, P
, P
, Q
, ctx
))
1019 || !TEST_true(EC_POINT_is_at_infinity(group
, P
))
1020 || !TEST_ptr(x
= BN_new())
1021 || !TEST_ptr(y
= BN_new())
1022 || !TEST_ptr(z
= BN_new())
1023 || !TEST_ptr(cof
= BN_new())
1024 || !TEST_ptr(yplusone
= BN_new())
1025 || !TEST_true(BN_hex2bn(&x
, "6"))
1026 /* Change test based on whether binary point compression is enabled or not. */
1027 # ifdef OPENSSL_EC_BIN_PT_COMP
1028 || !TEST_true(EC_POINT_set_compressed_coordinates_GF2m(group
, Q
, x
, 1,
1031 || !TEST_true(BN_hex2bn(&y
, "8"))
1032 || !TEST_true(EC_POINT_set_affine_coordinates_GF2m(group
, Q
, x
, y
, ctx
))
1036 if (!TEST_int_gt(EC_POINT_is_on_curve(group
, Q
, ctx
), 0)) {
1037 /* Change test based on whether binary point compression is enabled or not. */
1038 # ifdef OPENSSL_EC_BIN_PT_COMP
1039 if (!TEST_true(EC_POINT_get_affine_coordinates_GF2m(group
, Q
, x
, y
,
1043 TEST_info("Point is not on curve");
1044 test_output_bignum("x", x
);
1045 test_output_bignum("y", y
);
1049 TEST_note("A cyclic subgroup:");
1052 if (!TEST_int_ne(k
--, 0))
1055 if (EC_POINT_is_at_infinity(group
, P
))
1056 TEST_note(" point at infinity");
1058 if (!TEST_true(EC_POINT_get_affine_coordinates_GF2m(group
, P
, x
, y
,
1062 test_output_bignum("x", x
);
1063 test_output_bignum("y", y
);
1066 if (!TEST_true(EC_POINT_copy(R
, P
))
1067 || !TEST_true(EC_POINT_add(group
, P
, P
, Q
, ctx
)))
1070 while (!EC_POINT_is_at_infinity(group
, P
));
1072 if (!TEST_true(EC_POINT_add(group
, P
, Q
, R
, ctx
))
1073 || !TEST_true(EC_POINT_is_at_infinity(group
, P
)))
1076 /* Change test based on whether binary point compression is enabled or not. */
1077 # ifdef OPENSSL_EC_BIN_PT_COMP
1078 len
= EC_POINT_point2oct(group
, Q
, POINT_CONVERSION_COMPRESSED
,
1079 buf
, sizeof buf
, ctx
);
1080 if (!TEST_size_t_ne(len
, 0)
1081 || !TEST_true(EC_POINT_oct2point(group
, P
, buf
, len
, ctx
))
1082 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, Q
, ctx
)))
1084 test_output_memory("Generator as octet string, compressed form:",
1088 len
= EC_POINT_point2oct(group
, Q
, POINT_CONVERSION_UNCOMPRESSED
,
1089 buf
, sizeof buf
, ctx
);
1090 if (!TEST_size_t_ne(len
, 0)
1091 || !TEST_true(EC_POINT_oct2point(group
, P
, buf
, len
, ctx
))
1092 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, Q
, ctx
)))
1094 test_output_memory("Generator as octet string, uncompressed form:",
1097 /* Change test based on whether binary point compression is enabled or not. */
1098 # ifdef OPENSSL_EC_BIN_PT_COMP
1100 EC_POINT_point2oct(group
, Q
, POINT_CONVERSION_HYBRID
, buf
, sizeof buf
,
1102 if (!TEST_size_t_ne(len
, 0)
1103 || !TEST_true(EC_POINT_oct2point(group
, P
, buf
, len
, ctx
))
1104 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, Q
, ctx
)))
1106 test_output_memory("Generator as octet string, hybrid form:",
1110 if (!TEST_true(EC_POINT_invert(group
, P
, ctx
))
1111 || !TEST_int_eq(0, EC_POINT_cmp(group
, P
, R
, ctx
)))
1122 EC_GROUP_free(group
);
1136 static int internal_curve_test(int n
)
1138 EC_GROUP
*group
= NULL
;
1139 int nid
= curves
[n
].nid
;
1141 if (!TEST_ptr(group
= EC_GROUP_new_by_curve_name(nid
))) {
1142 TEST_info("EC_GROUP_new_curve_name() failed with curve %s\n",
1146 if (!TEST_true(EC_GROUP_check(group
, NULL
))) {
1147 TEST_info("EC_GROUP_check() failed with curve %s\n", OBJ_nid2sn(nid
));
1148 EC_GROUP_free(group
);
1151 EC_GROUP_free(group
);
1155 static int internal_curve_test_method(int n
)
1157 int r
, nid
= curves
[n
].nid
;
1161 * Skip for X25519 because low level operations such as EC_POINT_mul()
1162 * are not supported for this curve
1164 if (nid
== NID_X25519
)
1166 if (!TEST_ptr(group
= EC_GROUP_new_by_curve_name(nid
))) {
1167 TEST_info("Curve %s failed\n", OBJ_nid2sn(nid
));
1170 r
= group_order_tests(group
);
1171 EC_GROUP_free(group
);
1175 # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
1177 * nistp_test_params contains magic numbers for testing our optimized
1178 * implementations of several NIST curves with characteristic > 3.
1180 struct nistp_test_params
{
1181 const EC_METHOD
*(*meth
) ();
1184 * Qx, Qy and D are taken from
1185 * http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/ECDSA_Prime.pdf
1186 * Otherwise, values are standard curve parameters from FIPS 180-3
1188 const char *p
, *a
, *b
, *Qx
, *Qy
, *Gx
, *Gy
, *order
, *d
;
1191 static const struct nistp_test_params nistp_tests_params
[] = {
1194 EC_GFp_nistp224_method
,
1197 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001",
1199 "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE",
1201 "B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4",
1203 "E84FB0B8E7000CB657D7973CF6B42ED78B301674276DF744AF130B3E",
1205 "4376675C6FC5612C21A0FF2D2A89D2987DF7A2BC52183B5982298555",
1207 "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21",
1209 "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34",
1211 "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D",
1213 "3F0C488E987C80BE0FEE521F8D90BE6034EC69AE11CA72AA777481E8",
1217 EC_GFp_nistp256_method
,
1220 "ffffffff00000001000000000000000000000000ffffffffffffffffffffffff",
1222 "ffffffff00000001000000000000000000000000fffffffffffffffffffffffc",
1224 "5ac635d8aa3a93e7b3ebbd55769886bc651d06b0cc53b0f63bce3c3e27d2604b",
1226 "b7e08afdfe94bad3f1dc8c734798ba1c62b3a0ad1e9ea2a38201cd0889bc7a19",
1228 "3603f747959dbf7a4bb226e41928729063adc7ae43529e61b563bbc606cc5e09",
1230 "6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296",
1232 "4fe342e2fe1a7f9b8ee7eb4a7c0f9e162bce33576b315ececbb6406837bf51f5",
1234 "ffffffff00000000ffffffffffffffffbce6faada7179e84f3b9cac2fc632551",
1236 "c477f9f65c22cce20657faa5b2d1d8122336f851a508a1ed04e479c34985bf96",
1240 EC_GFp_nistp521_method
,
1244 "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
1245 "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
1248 "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
1249 "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffc",
1252 "953eb9618e1c9a1f929a21a0b68540eea2da725b99b315f3b8b489918ef109e1"
1253 "56193951ec7e937b1652c0bd3bb1bf073573df883d2c34f1ef451fd46b503f00",
1256 "e91eef9a68452822309c52fab453f5f117c1da8ed796b255e9ab8f6410cca16e"
1257 "59df403a6bdc6ca467a37056b1e54b3005d8ac030decfeb68df18b171885d5c4",
1260 "350c321aecfc1cca1ba4364c9b15656150b4b78d6a48d7d28e7f31985ef17be8"
1261 "554376b72900712c4b83ad668327231526e313f5f092999a4632fd50d946bc2e",
1264 "858e06b70404e9cd9e3ecb662395b4429c648139053fb521f828af606b4d3dba"
1265 "a14b5e77efe75928fe1dc127a2ffa8de3348b3c1856a429bf97e7e31c2e5bd66",
1268 "39296a789a3bc0045c8a5fb42c7d1bd998f54449579b446817afbd17273e662c"
1269 "97ee72995ef42640c550b9013fad0761353c7086a272c24088be94769fd16650",
1272 "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffa"
1273 "51868783bf2f966b7fcc0148f709a5d03bb5c9b8899c47aebb6fb71e91386409",
1276 "085f47b8e1b8b11b7eb33028c0b2888e304bfc98501955b45bba1478dc184eee"
1277 "df09b86a5f7c21994406072787205e69a63709fe35aa93ba333514b24f961722",
1281 static int nistp_single_test(int idx
)
1283 const struct nistp_test_params
*test
= nistp_tests_params
+ idx
;
1285 BIGNUM
*p
= NULL
, *a
= NULL
, *b
= NULL
, *x
= NULL
, *y
= NULL
;
1286 BIGNUM
*n
= NULL
, *m
= NULL
, *order
= NULL
, *yplusone
= NULL
;
1287 EC_GROUP
*NISTP
= NULL
;
1288 EC_POINT
*G
= NULL
, *P
= NULL
, *Q
= NULL
, *Q_CHECK
= NULL
;
1291 TEST_note("NIST curve P-%d (optimised implementation):",
1293 if (!TEST_ptr(ctx
= BN_CTX_new())
1294 || !TEST_ptr(p
= BN_new())
1295 || !TEST_ptr(a
= BN_new())
1296 || !TEST_ptr(b
= BN_new())
1297 || !TEST_ptr(x
= BN_new())
1298 || !TEST_ptr(y
= BN_new())
1299 || !TEST_ptr(m
= BN_new())
1300 || !TEST_ptr(n
= BN_new())
1301 || !TEST_ptr(order
= BN_new())
1302 || !TEST_ptr(yplusone
= BN_new())
1304 || !TEST_ptr(NISTP
= EC_GROUP_new(test
->meth()))
1305 || !TEST_true(BN_hex2bn(&p
, test
->p
))
1306 || !TEST_int_eq(1, BN_is_prime_ex(p
, BN_prime_checks
, ctx
, NULL
))
1307 || !TEST_true(BN_hex2bn(&a
, test
->a
))
1308 || !TEST_true(BN_hex2bn(&b
, test
->b
))
1309 || !TEST_true(EC_GROUP_set_curve_GFp(NISTP
, p
, a
, b
, ctx
))
1310 || !TEST_ptr(G
= EC_POINT_new(NISTP
))
1311 || !TEST_ptr(P
= EC_POINT_new(NISTP
))
1312 || !TEST_ptr(Q
= EC_POINT_new(NISTP
))
1313 || !TEST_ptr(Q_CHECK
= EC_POINT_new(NISTP
))
1314 || !TEST_true(BN_hex2bn(&x
, test
->Qx
))
1315 || !TEST_true(BN_hex2bn(&y
, test
->Qy
))
1316 || !TEST_true(BN_add(yplusone
, y
, BN_value_one()))
1318 * When (x, y) is on the curve, (x, y + 1) is, as it happens, not,
1319 * and therefore setting the coordinates should fail.
1321 || !TEST_false(EC_POINT_set_affine_coordinates_GFp(NISTP
, Q_CHECK
, x
,
1323 || !TEST_true(EC_POINT_set_affine_coordinates_GFp(NISTP
, Q_CHECK
, x
, y
,
1325 || !TEST_true(BN_hex2bn(&x
, test
->Gx
))
1326 || !TEST_true(BN_hex2bn(&y
, test
->Gy
))
1327 || !TEST_true(EC_POINT_set_affine_coordinates_GFp(NISTP
, G
, x
, y
, ctx
))
1328 || !TEST_true(BN_hex2bn(&order
, test
->order
))
1329 || !TEST_true(EC_GROUP_set_generator(NISTP
, G
, order
, BN_value_one()))
1330 || !TEST_int_eq(EC_GROUP_get_degree(NISTP
), test
->degree
))
1333 TEST_note("NIST test vectors ... ");
1334 if (!TEST_true(BN_hex2bn(&n
, test
->d
)))
1336 /* fixed point multiplication */
1337 EC_POINT_mul(NISTP
, Q
, n
, NULL
, NULL
, ctx
);
1338 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
)))
1340 /* random point multiplication */
1341 EC_POINT_mul(NISTP
, Q
, NULL
, G
, n
, ctx
);
1342 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
))
1344 /* set generator to P = 2*G, where G is the standard generator */
1345 || !TEST_true(EC_POINT_dbl(NISTP
, P
, G
, ctx
))
1346 || !TEST_true(EC_GROUP_set_generator(NISTP
, P
, order
, BN_value_one()))
1347 /* set the scalar to m=n/2, where n is the NIST test scalar */
1348 || !TEST_true(BN_rshift(m
, n
, 1)))
1351 /* test the non-standard generator */
1352 /* fixed point multiplication */
1353 EC_POINT_mul(NISTP
, Q
, m
, NULL
, NULL
, ctx
);
1354 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
)))
1356 /* random point multiplication */
1357 EC_POINT_mul(NISTP
, Q
, NULL
, P
, m
, ctx
);
1358 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
))
1361 * We have not performed precomputation so have_precompute mult should be
1364 || !TEST_false(EC_GROUP_have_precompute_mult(NISTP
))
1366 /* now repeat all tests with precomputation */
1367 || !TEST_true(EC_GROUP_precompute_mult(NISTP
, ctx
))
1368 || !TEST_true(EC_GROUP_have_precompute_mult(NISTP
)))
1371 /* fixed point multiplication */
1372 EC_POINT_mul(NISTP
, Q
, m
, NULL
, NULL
, ctx
);
1373 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
)))
1375 /* random point multiplication */
1376 EC_POINT_mul(NISTP
, Q
, NULL
, P
, m
, ctx
);
1377 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
))
1379 /* reset generator */
1380 || !TEST_true(EC_GROUP_set_generator(NISTP
, G
, order
, BN_value_one())))
1382 /* fixed point multiplication */
1383 EC_POINT_mul(NISTP
, Q
, n
, NULL
, NULL
, ctx
);
1384 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
)))
1386 /* random point multiplication */
1387 EC_POINT_mul(NISTP
, Q
, NULL
, G
, n
, ctx
);
1388 if (!TEST_int_eq(0, EC_POINT_cmp(NISTP
, Q
, Q_CHECK
, ctx
)))
1391 r
= group_order_tests(NISTP
);
1393 EC_GROUP_free(NISTP
);
1397 EC_POINT_free(Q_CHECK
);
1412 static int parameter_test(void)
1414 EC_GROUP
*group
= NULL
, *group2
= NULL
;
1415 ECPARAMETERS
*ecparameters
= NULL
;
1418 r
= TEST_ptr(group
= EC_GROUP_new_by_curve_name(NID_secp112r1
))
1419 && TEST_ptr(ecparameters
= EC_GROUP_get_ecparameters(group
, NULL
))
1420 && TEST_ptr(group2
= EC_GROUP_new_from_ecparameters(ecparameters
))
1421 && TEST_int_eq(EC_GROUP_cmp(group
, group2
, NULL
), 0);
1423 EC_GROUP_free(group
);
1424 EC_GROUP_free(group2
);
1425 ECPARAMETERS_free(ecparameters
);
1430 int setup_tests(void)
1432 #ifndef OPENSSL_NO_EC
1433 crv_len
= EC_get_builtin_curves(NULL
, 0);
1434 if (!TEST_ptr(curves
= OPENSSL_malloc(sizeof(*curves
) * crv_len
))
1435 || !TEST_true(EC_get_builtin_curves(curves
, crv_len
)))
1438 ADD_TEST(parameter_test
);
1439 ADD_TEST(prime_field_tests
);
1440 # ifndef OPENSSL_NO_EC2M
1441 ADD_TEST(char2_field_tests
);
1442 ADD_ALL_TESTS(char2_curve_test
, OSSL_NELEM(char2_curve_tests
));
1444 # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
1445 ADD_ALL_TESTS(nistp_single_test
, OSSL_NELEM(nistp_tests_params
));
1447 ADD_ALL_TESTS(internal_curve_test
, crv_len
);
1448 ADD_ALL_TESTS(internal_curve_test_method
, crv_len
);
1453 void cleanup_tests(void)
1455 #ifndef OPENSSL_NO_EC
1456 OPENSSL_free(curves
);