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65e81670
BM		 1/* crypto/ec/ec.h */
2/* ====================================================================
af28dd6c 3 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
6cc5e19d 4 *
65e81670
BM		 5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
6cc5e19d 8 *
65e81670
BM		 9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
6cc5e19d 11 *
65e81670
BM		 12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
6cc5e19d 16 *
65e81670
BM		 17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
6cc5e19d
BM		 53 *
54 */
7793f30e
BM		 55/* ====================================================================
56 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
57 *
58 * Portions of the attached software ("Contribution") are developed by
59 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
60 *
61 * The Contribution is licensed pursuant to the OpenSSL open source
62 * license provided above.
63 *
64 * In addition, Sun covenants to all licensees who provide a reciprocal
65 * covenant with respect to their own patents if any, not to sue under
66 * current and future patent claims necessarily infringed by the making,
67 * using, practicing, selling, offering for sale and/or otherwise
68 * disposing of the Contribution as delivered hereunder
69 * (or portions thereof), provided that such covenant shall not apply:
70 * 1) for code that a licensee deletes from the Contribution;
71 * 2) separates from the Contribution; or
72 * 3) for infringements caused by:
73 * i) the modification of the Contribution or
74 * ii) the combination of the Contribution with other software or
75 * devices where such combination causes the infringement.
76 *
77 * The elliptic curve binary polynomial software is originally written by
78 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
79 *
80 */
6cc5e19d 81
6cc5e19d
BM		 82#ifndef HEADER_EC_H
83#define HEADER_EC_H
84
bb62a8b0 85#ifdef OPENSSL_NO_EC
37da54b1 86#error EC is disabled.
bb62a8b0
BM		 87#endif
88
5acaa495 89#include <openssl/bn.h>
458c2917 90#include <openssl/asn1.h>
0e995464 91#include <openssl/symhacks.h>
6cc5e19d 92
65e81670
BM		 93#ifdef __cplusplus
94extern "C" {
95#endif
6cc5e19d 96
6cc5e19d 97
3a12ce01 98typedef enum {
226cc7de 99 /* values as defined in X9.62 (ECDSA) and elsewhere */
3a12ce01
BM		 100 POINT_CONVERSION_COMPRESSED = 2,
101 POINT_CONVERSION_UNCOMPRESSED = 4,
102 POINT_CONVERSION_HYBRID = 6
103} point_conversion_form_t;
104
105
106typedef struct ec_method_st EC_METHOD;
107
108typedef struct ec_group_st
109 /*
110 EC_METHOD *meth;
111 -- field definition
112 -- curve coefficients
113 -- optional generator with associated information (order, cofactor)
e3a4f8b8 114 -- optional extra data (TODO: precomputed table for fast computation of multiples of generator)
5f3d6f70 115 -- ASN1 stuff
3a12ce01
BM		 116 */
117 EC_GROUP;
118
119typedef struct ec_point_st EC_POINT;
120
121
122/* EC_METHODs for curves over GF(p).
123 * EC_GFp_simple_method provides the basis for the optimized methods.
124 */
3a12ce01
BM		 125const EC_METHOD *EC_GFp_simple_method(void);
126const EC_METHOD *EC_GFp_mont_method(void);
8a2908a2 127#if 0
48fe4d62
BM		 128const EC_METHOD *EC_GFp_recp_method(void); /* TODO */
129const EC_METHOD *EC_GFp_nist_method(void); /* TODO */
8a2908a2 130#endif
3a12ce01 131
64c3da23 132/* EC_METHOD for curves over GF(2^m).
7793f30e
BM		 133 */
134const EC_METHOD *EC_GF2m_simple_method(void);
135
3a12ce01
BM		 136
137EC_GROUP *EC_GROUP_new(const EC_METHOD *);
48fe4d62
BM		 138void EC_GROUP_free(EC_GROUP *);
139void EC_GROUP_clear_free(EC_GROUP *);
140int EC_GROUP_copy(EC_GROUP *, const EC_GROUP *);
7793f30e 141EC_GROUP *EC_GROUP_dup(const EC_GROUP *);
48fe4d62 142
b6db386f 143const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *);
458c2917 144int EC_METHOD_get_field_type(const EC_METHOD *);
b6db386f
BM		 145
146int EC_GROUP_set_generator(EC_GROUP *, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor);
147EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *);
148int EC_GROUP_get_order(const EC_GROUP *, BIGNUM *order, BN_CTX *);
149int EC_GROUP_get_cofactor(const EC_GROUP *, BIGNUM *cofactor, BN_CTX *);
150
5f3d6f70 151void EC_GROUP_set_nid(EC_GROUP *, int); /* curve name */
945e15a2
BM		 152int EC_GROUP_get_nid(const EC_GROUP *);
153
5f3d6f70
BM		 154void EC_GROUP_set_asn1_flag(EC_GROUP *, int flag);
155int EC_GROUP_get_asn1_flag(const EC_GROUP *);
156
157void EC_GROUP_set_point_conversion_form(EC_GROUP *, point_conversion_form_t);
158point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
159
160unsigned char *EC_GROUP_get0_seed(const EC_GROUP *);
161size_t EC_GROUP_get_seed_len(const EC_GROUP *);
162size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
48fe4d62 163
bb62a8b0 164int EC_GROUP_set_curve_GFp(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
48fe4d62 165int EC_GROUP_get_curve_GFp(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *);
7793f30e
BM		 166int EC_GROUP_set_curve_GF2m(EC_GROUP *, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
167int EC_GROUP_get_curve_GF2m(const EC_GROUP *, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *);
168
169int EC_GROUP_get_degree(const EC_GROUP *);
3a12ce01 170
af28dd6c
BM		 171/* EC_GROUP_check() returns 1 if 'group' defines a valid group, 0 otherwise */
172int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
17d6bb81
BM		 173/* EC_GROUP_check_discriminant() returns 1 if the discriminant of the
174 * elliptic curve is not zero, 0 otherwise */
175int EC_GROUP_check_discriminant(const EC_GROUP *, BN_CTX *);
945e15a2 176
7793f30e 177/* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*()
945e15a2
BM		 178 * after choosing an appropriate EC_METHOD */
179EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
7793f30e 180EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *);
945e15a2 181
60d8bae3
BM		 182/* EC_GROUP_new_by_nid() and EC_GROUP_new_by_name() also set
183 * generator and order */
9bc44854 184EC_GROUP *EC_GROUP_new_by_nid(int nid);
60d8bae3 185EC_GROUP *EC_GROUP_new_by_name(int name);
36c19463 186/* Currently valid arguments to EC_GROUP_new_by_name() */
945e15a2 187#define EC_GROUP_NO_CURVE 0
0ae1661b 188#define EC_GROUP_NIST_PRIME_192 NID_X9_62_prime192v1
36c19463 189#define EC_GROUP_NIST_PRIME_224 NID_secp224r1
0ae1661b 190#define EC_GROUP_NIST_PRIME_256 NID_X9_62_prime256v1
36c19463
BM		 191#define EC_GROUP_NIST_PRIME_384 NID_secp384r1
192#define EC_GROUP_NIST_PRIME_521 NID_secp521r1
945e15a2
BM		 193#define EC_GROUP_X9_62_PRIME_192V1 NID_X9_62_prime192v1
194#define EC_GROUP_X9_62_PRIME_192V2 NID_X9_62_prime192v2
195#define EC_GROUP_X9_62_PRIME_192V3 NID_X9_62_prime192v3
196#define EC_GROUP_X9_62_PRIME_239V1 NID_X9_62_prime239v1
197#define EC_GROUP_X9_62_PRIME_239V2 NID_X9_62_prime239v2
198#define EC_GROUP_X9_62_PRIME_239V3 NID_X9_62_prime239v3
199#define EC_GROUP_X9_62_PRIME_256V1 NID_X9_62_prime256v1
36c19463
BM		 200#define EC_GROUP_SECG_PRIME_112R1 NID_secp112r1
201#define EC_GROUP_SECG_PRIME_112R2 NID_secp112r2
202#define EC_GROUP_SECG_PRIME_128R1 NID_secp128r1
203#define EC_GROUP_SECG_PRIME_128R2 NID_secp128r2
204#define EC_GROUP_SECG_PRIME_160K1 NID_secp160k1
205#define EC_GROUP_SECG_PRIME_160R1 NID_secp160r1
206#define EC_GROUP_SECG_PRIME_160R2 NID_secp160r2
207#define EC_GROUP_SECG_PRIME_192K1 NID_secp192k1
0ae1661b 208#define EC_GROUP_SECG_PRIME_192R1 NID_X9_62_prime192v1
36c19463
BM		 209#define EC_GROUP_SECG_PRIME_224K1 NID_secp224k1
210#define EC_GROUP_SECG_PRIME_224R1 NID_secp224r1
211#define EC_GROUP_SECG_PRIME_256K1 NID_secp256k1
0ae1661b 212#define EC_GROUP_SECG_PRIME_256R1 NID_X9_62_prime256v1
36c19463
BM		 213#define EC_GROUP_SECG_PRIME_384R1 NID_secp384r1
214#define EC_GROUP_SECG_PRIME_521R1 NID_secp521r1
af28dd6c 215#define EC_GROUP_WTLS_6 NID_wap_wsg_idm_ecid_wtls6
7793f30e 216#define EC_GROUP_WTLS_7 NID_wap_wsg_idm_ecid_wtls7
af28dd6c
BM		 217#define EC_GROUP_WTLS_8 NID_wap_wsg_idm_ecid_wtls8
218#define EC_GROUP_WTLS_9 NID_wap_wsg_idm_ecid_wtls9
7793f30e
BM		 219#define EC_GROUP_WTLS_12 NID_wap_wsg_idm_ecid_wtls12
220#define EC_GROUP_NIST_CHAR2_K163 NID_sect163k1
221#define EC_GROUP_NIST_CHAR2_B163 NID_sect163r2
222#define EC_GROUP_NIST_CHAR2_K233 NID_sect233k1
223#define EC_GROUP_NIST_CHAR2_B233 NID_sect233r1
224#define EC_GROUP_NIST_CHAR2_K283 NID_sect283k1
225#define EC_GROUP_NIST_CHAR2_B283 NID_sect283r1
226#define EC_GROUP_NIST_CHAR2_K409 NID_sect409k1
227#define EC_GROUP_NIST_CHAR2_B409 NID_sect409r1
228#define EC_GROUP_NIST_CHAR2_K571 NID_sect571k1
229#define EC_GROUP_NIST_CHAR2_B571 NID_sect571r1
230#define EC_GROUP_X9_62_CHAR2_163V1 NID_X9_62_c2pnb163v1
231#define EC_GROUP_X9_62_CHAR2_163V2 NID_X9_62_c2pnb163v2
232#define EC_GROUP_X9_62_CHAR2_163V3 NID_X9_62_c2pnb163v3
233#define EC_GROUP_X9_62_CHAR2_176V1 NID_X9_62_c2pnb176v1
234#define EC_GROUP_X9_62_CHAR2_191V1 NID_X9_62_c2tnb191v1
235#define EC_GROUP_X9_62_CHAR2_191V2 NID_X9_62_c2tnb191v2
236#define EC_GROUP_X9_62_CHAR2_191V3 NID_X9_62_c2tnb191v3
237#define EC_GROUP_X9_62_CHAR2_208W1 NID_X9_62_c2pnb208w1
238#define EC_GROUP_X9_62_CHAR2_239V1 NID_X9_62_c2tnb239v1
239#define EC_GROUP_X9_62_CHAR2_239V2 NID_X9_62_c2tnb239v2
240#define EC_GROUP_X9_62_CHAR2_239V3 NID_X9_62_c2tnb239v3
241#define EC_GROUP_X9_62_CHAR2_272W1 NID_X9_62_c2pnb272w1
242#define EC_GROUP_X9_62_CHAR2_304W1 NID_X9_62_c2pnb304w1
243#define EC_GROUP_X9_62_CHAR2_359V1 NID_X9_62_c2tnb359v1
244#define EC_GROUP_X9_62_CHAR2_368W1 NID_X9_62_c2pnb368w1
245#define EC_GROUP_X9_62_CHAR2_431R1 NID_X9_62_c2tnb431r1
246#define EC_GROUP_SECG_CHAR2_113R1 NID_sect113r1
247#define EC_GROUP_SECG_CHAR2_113R2 NID_sect113r2
248#define EC_GROUP_SECG_CHAR2_131R1 NID_sect131r1
249#define EC_GROUP_SECG_CHAR2_131R2 NID_sect131r2
250#define EC_GROUP_SECG_CHAR2_163K1 NID_sect163k1
251#define EC_GROUP_SECG_CHAR2_163R1 NID_sect163r1
252#define EC_GROUP_SECG_CHAR2_163R2 NID_sect163r2
253#define EC_GROUP_SECG_CHAR2_193R1 NID_sect193r1
254#define EC_GROUP_SECG_CHAR2_193R2 NID_sect193r2
255#define EC_GROUP_SECG_CHAR2_233K1 NID_sect233k1
256#define EC_GROUP_SECG_CHAR2_233R1 NID_sect233r1
257#define EC_GROUP_SECG_CHAR2_239K1 NID_sect239k1
258#define EC_GROUP_SECG_CHAR2_283K1 NID_sect283k1
259#define EC_GROUP_SECG_CHAR2_283R1 NID_sect283r1
260#define EC_GROUP_SECG_CHAR2_409K1 NID_sect409k1
261#define EC_GROUP_SECG_CHAR2_409R1 NID_sect409r1
262#define EC_GROUP_SECG_CHAR2_571K1 NID_sect571k1
263#define EC_GROUP_SECG_CHAR2_571R1 NID_sect571r1
264#define EC_GROUP_WTLS_1 NID_wap_wsg_idm_ecid_wtls1
265#define EC_GROUP_WTLS_3 NID_wap_wsg_idm_ecid_wtls3
266#define EC_GROUP_WTLS_4 NID_wap_wsg_idm_ecid_wtls4
267#define EC_GROUP_WTLS_5 NID_wap_wsg_idm_ecid_wtls5
268#define EC_GROUP_WTLS_10 NID_wap_wsg_idm_ecid_wtls10
269#define EC_GROUP_WTLS_11 NID_wap_wsg_idm_ecid_wtls11
945e15a2 270
3a12ce01
BM		 271EC_POINT *EC_POINT_new(const EC_GROUP *);
272void EC_POINT_free(EC_POINT *);
0657bf9c 273void EC_POINT_clear_free(EC_POINT *);
7d7db13e 274int EC_POINT_copy(EC_POINT *, const EC_POINT *);
7793f30e 275EC_POINT *EC_POINT_dup(const EC_POINT *, const EC_GROUP *);
3a12ce01 276
48fe4d62
BM		 277const EC_METHOD *EC_POINT_method_of(const EC_POINT *);
278
226cc7de 279int EC_POINT_set_to_infinity(const EC_GROUP *, EC_POINT *);
1d5bd6cf
BM		 280int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *, EC_POINT *,
281 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *);
282int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *, const EC_POINT *,
283 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *);
226cc7de
BM		 284int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *, EC_POINT *,
285 const BIGNUM *x, const BIGNUM *y, BN_CTX *);
286int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *, const EC_POINT *,
287 BIGNUM *x, BIGNUM *y, BN_CTX *);
1d5bd6cf
BM		 288int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *, EC_POINT *,
289 const BIGNUM *x, int y_bit, BN_CTX *);
7d7db13e 290
7793f30e
BM		 291int EC_POINT_set_Jprojective_coordinates_GF2m(const EC_GROUP *, EC_POINT *,
292 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *);
293int EC_POINT_get_Jprojective_coordinates_GF2m(const EC_GROUP *, const EC_POINT *,
294 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *);
295int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *, EC_POINT *,
296 const BIGNUM *x, const BIGNUM *y, BN_CTX *);
297int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *, const EC_POINT *,
298 BIGNUM *x, BIGNUM *y, BN_CTX *);
299int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *, EC_POINT *,
300 const BIGNUM *x, int y_bit, BN_CTX *);
301
5b438e9b 302size_t EC_POINT_point2oct(const EC_GROUP *, const EC_POINT *, point_conversion_form_t form,
7d7db13e
BM		 303 unsigned char *buf, size_t len, BN_CTX *);
304int EC_POINT_oct2point(const EC_GROUP *, EC_POINT *,
305 const unsigned char *buf, size_t len, BN_CTX *);
306
6cbe6382
BM		 307/* other interfaces to point2oct/oct2point: */
308BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *,
309 point_conversion_form_t form, BIGNUM *, BN_CTX *);
310EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *,
311 EC_POINT *, BN_CTX *);
312char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
313 point_conversion_form_t form, BN_CTX *);
314EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
315 EC_POINT *, BN_CTX *);
316
7d7db13e
BM		 317int EC_POINT_add(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *);
318int EC_POINT_dbl(const EC_GROUP *, EC_POINT *r, const EC_POINT *a, BN_CTX *);
1d5bd6cf 319int EC_POINT_invert(const EC_GROUP *, EC_POINT *, BN_CTX *);
3a12ce01 320
5b438e9b
BM		 321int EC_POINT_is_at_infinity(const EC_GROUP *, const EC_POINT *);
322int EC_POINT_is_on_curve(const EC_GROUP *, const EC_POINT *, BN_CTX *);
1d5bd6cf 323int EC_POINT_cmp(const EC_GROUP *, const EC_POINT *a, const EC_POINT *b, BN_CTX *);
fb171e53 324
e869d4bd 325int EC_POINT_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *);
48fe4d62 326int EC_POINTs_make_affine(const EC_GROUP *, size_t num, EC_POINT *[], BN_CTX *);
fb171e53 327
3a12ce01 328
38374911
BM		 329int EC_POINTs_mul(const EC_GROUP *, EC_POINT *r, const BIGNUM *, size_t num, const EC_POINT *[], const BIGNUM *[], BN_CTX *);
330int EC_POINT_mul(const EC_GROUP *, EC_POINT *r, const BIGNUM *, const EC_POINT *, const BIGNUM *, BN_CTX *);
194dd046 331int EC_GROUP_precompute_mult(EC_GROUP *, BN_CTX *);
6cc5e19d 332
6cc5e19d
BM		 333
334
458c2917 335/* ASN1 stuff */
254ef80d 336#define OPENSSL_EC_NAMED_CURVE 0x001
458c2917
BM		 337
338typedef struct ec_parameters_st ECPARAMETERS;
339typedef struct ecpk_parameters_st ECPKPARAMETERS;
340
341DECLARE_ASN1_ITEM(ECPARAMETERS)
342DECLARE_ASN1_ITEM(ECPKPARAMETERS)
343DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECPARAMETERS, ECPARAMETERS)
344DECLARE_ASN1_ENCODE_FUNCTIONS_const(ECPKPARAMETERS, ECPKPARAMETERS)
345
346EC_GROUP *EC_ASN1_pkparameters2group(const ECPKPARAMETERS *);
347ECPKPARAMETERS *EC_ASN1_group2pkparameters(const EC_GROUP *, ECPKPARAMETERS *);
348
254ef80d 349
458c2917
BM		 350EC_GROUP *d2i_ECParameters(EC_GROUP **, const unsigned char **in, long len);
351int i2d_ECParameters(const EC_GROUP *, unsigned char **out);
352
353EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
354int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
355
5dbd3efc
BM		 356#define d2i_ECPKParameters_bio(bp,x) (EC_GROUP *)ASN1_d2i_bio(NULL, \
357 (char *(*)())d2i_ECPKParameters,(bp),(unsigned char **)(x))
358#define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio(i2d_ECPKParameters,(bp), \
359 (unsigned char *)(x))
360#define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \
361 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x))
362#define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \
363 (unsigned char *)(x))
458c2917 364
5f3d6f70
BM		 365#ifndef OPENSSL_NO_BIO
366int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
367#endif
368#ifndef OPENSSL_NO_FP_API
369int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);
370#endif
371
0bee0e62
BM		 372/* SEC1 ECPrivateKey */
373typedef struct ec_privatekey_st {
374 int version;
375 ASN1_OCTET_STRING *privateKey;
376 ECPKPARAMETERS *parameters;
377 ASN1_BIT_STRING *publicKey;
378 } EC_PRIVATEKEY;
379
380DECLARE_ASN1_ITEM(EC_PRIVATEKEY)
381DECLARE_ASN1_FUNCTIONS_const(EC_PRIVATEKEY)
382DECLARE_ASN1_ENCODE_FUNCTIONS_const(EC_PRIVATEKEY, EC_PRIVATEKEY)
383
458c2917 384
65e81670
BM		 385/* BEGIN ERROR CODES */
386/* The following lines are auto generated by the script mkerr.pl. Any changes
387 * made after this point may be overwritten when the script is next run.
388 */
de10f690 389void ERR_load_EC_strings(void);
6cc5e19d 390
65e81670 391/* Error codes for the EC functions. */
6cc5e19d 392
65e81670 393/* Function codes. */
3ba1f111 394#define EC_F_COMPUTE_WNAF 143
458c2917
BM		 395#define EC_F_D2I_ECDSAPARAMETERS 154
396#define EC_F_D2I_ECPARAMETERS 155
397#define EC_F_D2I_ECPKPARAMETERS 161
5f3d6f70
BM		 398#define EC_F_ECPKPARAMETERS_PRINT 166
399#define EC_F_ECPKPARAMETERS_PRINT_FP 167
458c2917
BM		 400#define EC_F_EC_ASN1_GROUP2CURVE 159
401#define EC_F_EC_ASN1_GROUP2FIELDID 156
402#define EC_F_EC_ASN1_GROUP2PARAMETERS 160
403#define EC_F_EC_ASN1_GROUP2PKPARAMETERS 162
404#define EC_F_EC_ASN1_PARAMETERS2GROUP 157
405#define EC_F_EC_ASN1_PKPARAMETERS2GROUP 163
7793f30e
BM		 406#define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 168
407#define EC_F_EC_GF2M_SIMPLE_OCT2POINT 169
408#define EC_F_EC_GF2M_SIMPLE_POINT2OCT 170
409#define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES_GF2M 171
410#define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES_GF2M 172
411#define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES_GF2M 185
156e8557
BM		 412#define EC_F_EC_GFP_MONT_FIELD_DECODE 133
413#define EC_F_EC_GFP_MONT_FIELD_ENCODE 134
414#define EC_F_EC_GFP_MONT_FIELD_MUL 131
415#define EC_F_EC_GFP_MONT_FIELD_SQR 132
17d6bb81 416#define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 152
de10f690
BM		 417#define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100
418#define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101
419#define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102
420#define EC_F_EC_GFP_SIMPLE_OCT2POINT 103
421#define EC_F_EC_GFP_SIMPLE_POINT2OCT 104
48fe4d62 422#define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137
de10f690 423#define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105
bb62a8b0
BM		 424#define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128
425#define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129
af28dd6c 426#define EC_F_EC_GROUP_CHECK 150
17d6bb81 427#define EC_F_EC_GROUP_CHECK_DISCRIMINANT 153
de10f690 428#define EC_F_EC_GROUP_COPY 106
48fe4d62
BM		 429#define EC_F_EC_GROUP_GET0_GENERATOR 139
430#define EC_F_EC_GROUP_GET_COFACTOR 140
7793f30e 431#define EC_F_EC_GROUP_GET_CURVE_GF2M 173
bb62a8b0 432#define EC_F_EC_GROUP_GET_CURVE_GFP 130
7793f30e 433#define EC_F_EC_GROUP_GET_DEGREE 174
de10f690 434#define EC_F_EC_GROUP_GET_EXTRA_DATA 107
48fe4d62 435#define EC_F_EC_GROUP_GET_ORDER 141
60d8bae3 436#define EC_F_EC_GROUP_GROUP2NID 147
de10f690 437#define EC_F_EC_GROUP_NEW 108
60d8bae3
BM		 438#define EC_F_EC_GROUP_NEW_BY_NAME 144
439#define EC_F_EC_GROUP_NEW_BY_NID 146
7793f30e 440#define EC_F_EC_GROUP_NEW_GF2M_FROM_HEX 175
60d8bae3 441#define EC_F_EC_GROUP_NEW_GFP_FROM_HEX 148
194dd046 442#define EC_F_EC_GROUP_PRECOMPUTE_MULT 142
7793f30e 443#define EC_F_EC_GROUP_SET_CURVE_GF2M 176
de10f690
BM		 444#define EC_F_EC_GROUP_SET_CURVE_GFP 109
445#define EC_F_EC_GROUP_SET_EXTRA_DATA 110
446#define EC_F_EC_GROUP_SET_GENERATOR 111
48fe4d62
BM		 447#define EC_F_EC_POINTS_MAKE_AFFINE 136
448#define EC_F_EC_POINTS_MUL 138
de10f690
BM		 449#define EC_F_EC_POINT_ADD 112
450#define EC_F_EC_POINT_CMP 113
451#define EC_F_EC_POINT_COPY 114
452#define EC_F_EC_POINT_DBL 115
7793f30e 453#define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 177
de10f690 454#define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116
7793f30e 455#define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GF2M 178
de10f690
BM		 456#define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117
457#define EC_F_EC_POINT_IS_AT_INFINITY 118
458#define EC_F_EC_POINT_IS_ON_CURVE 119
459#define EC_F_EC_POINT_MAKE_AFFINE 120
7793f30e 460#define EC_F_EC_POINT_MUL 179
de10f690
BM		 461#define EC_F_EC_POINT_NEW 121
462#define EC_F_EC_POINT_OCT2POINT 122
463#define EC_F_EC_POINT_POINT2OCT 123
7793f30e 464#define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 180
de10f690 465#define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124
7793f30e 466#define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 181
1d5bd6cf 467#define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125
7793f30e 468#define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GF2M 182
1d5bd6cf 469#define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126
de10f690 470#define EC_F_EC_POINT_SET_TO_INFINITY 127
7793f30e
BM		 471#define EC_F_EC_WNAF_MUL 183
472#define EC_F_EC_WNAF_PRECOMPUTE_MULT 184
156e8557 473#define EC_F_GFP_MONT_GROUP_SET_CURVE_GFP 135
458c2917
BM		 474#define EC_F_I2D_ECDSAPARAMETERS 158
475#define EC_F_I2D_ECPARAMETERS 164
476#define EC_F_I2D_ECPKPARAMETERS 165
6cc5e19d 477
65e81670 478/* Reason codes. */
458c2917
BM		 479#define EC_R_ASN1_ERROR 130
480#define EC_R_ASN1_UNKNOWN_FIELD 131
226cc7de 481#define EC_R_BUFFER_TOO_SMALL 100
458c2917
BM		 482#define EC_R_D2I_ECPARAMETERS_FAILURE 132
483#define EC_R_D2I_ECPKPARAMETERS_FAILURE 133
484#define EC_R_D2I_EC_PARAMETERS_FAILURE 123
af28dd6c 485#define EC_R_DISCRIMINANT_IS_ZERO 118
458c2917
BM		 486#define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 124
487#define EC_R_GROUP2PARAMETERS_FAILURE 125
488#define EC_R_GROUP2PKPARAMETERS_FAILURE 134
489#define EC_R_I2D_ECPKPARAMETERS_FAILURE 135
490#define EC_R_I2D_EC_PARAMETERS_FAILURE 126
226cc7de 491#define EC_R_INCOMPATIBLE_OBJECTS 101
48fe4d62 492#define EC_R_INVALID_ARGUMENT 112
bb62a8b0
BM		 493#define EC_R_INVALID_COMPRESSED_POINT 110
494#define EC_R_INVALID_COMPRESSION_BIT 109
226cc7de 495#define EC_R_INVALID_ENCODING 102
de10f690
BM		 496#define EC_R_INVALID_FIELD 103
497#define EC_R_INVALID_FORM 104
af28dd6c 498#define EC_R_INVALID_GROUP_ORDER 119
458c2917
BM		 499#define EC_R_MISSING_PARAMETERS 127
500#define EC_R_NOT_IMPLEMENTED 136
156e8557 501#define EC_R_NOT_INITIALIZED 111
de10f690 502#define EC_R_NO_SUCH_EXTRA_DATA 105
458c2917
BM		 503#define EC_R_PARAMETERS2GROUP_FAILURE 128
504#define EC_R_PKPARAMETERS2GROUP_FAILURE 137
de10f690
BM		 505#define EC_R_POINT_AT_INFINITY 106
506#define EC_R_POINT_IS_NOT_ON_CURVE 107
507#define EC_R_SLOT_FULL 108
6f8f4431 508#define EC_R_UNDEFINED_GENERATOR 113
af28dd6c 509#define EC_R_UNDEFINED_ORDER 122
945e15a2
BM		 510#define EC_R_UNKNOWN_GROUP 116
511#define EC_R_UNKNOWN_NID 117
38374911 512#define EC_R_UNKNOWN_ORDER 114
458c2917 513#define EC_R_UNKNOWN_PARAMETERS_TYPE 129
6cc5e19d 514
65e81670
BM		 515#ifdef __cplusplus
516}
517#endif
5acaa495 518#endif
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