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| 1 /* crypto/ec/ec.h */ | |
| 2 /* | |
| 3 * Originally written by Bodo Moeller for the OpenSSL project. | |
| 4 */ | |
| 5 /** | |
| 6 * \file crypto/ec/ec.h Include file for the OpenSSL EC functions | |
| 7 * \author Originally written by Bodo Moeller for the OpenSSL project | |
| 8 */ | |
| 9 /* ==================================================================== | |
| 10 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. | |
| 11 * | |
| 12 * Redistribution and use in source and binary forms, with or without | |
| 13 * modification, are permitted provided that the following conditions | |
| 14 * are met: | |
| 15 * | |
| 16 * 1. Redistributions of source code must retain the above copyright | |
| 17 * notice, this list of conditions and the following disclaimer. | |
| 18 * | |
| 19 * 2. Redistributions in binary form must reproduce the above copyright | |
| 20 * notice, this list of conditions and the following disclaimer in | |
| 21 * the documentation and/or other materials provided with the | |
| 22 * distribution. | |
| 23 * | |
| 24 * 3. All advertising materials mentioning features or use of this | |
| 25 * software must display the following acknowledgment: | |
| 26 * "This product includes software developed by the OpenSSL Project | |
| 27 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
| 28 * | |
| 29 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
| 30 * endorse or promote products derived from this software without | |
| 31 * prior written permission. For written permission, please contact | |
| 32 * openssl-core@openssl.org. | |
| 33 * | |
| 34 * 5. Products derived from this software may not be called "OpenSSL" | |
| 35 * nor may "OpenSSL" appear in their names without prior written | |
| 36 * permission of the OpenSSL Project. | |
| 37 * | |
| 38 * 6. Redistributions of any form whatsoever must retain the following | |
| 39 * acknowledgment: | |
| 40 * "This product includes software developed by the OpenSSL Project | |
| 41 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
| 42 * | |
| 43 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
| 44 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
| 47 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 49 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 50 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 52 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 53 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 54 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 55 * ==================================================================== | |
| 56 * | |
| 57 * This product includes cryptographic software written by Eric Young | |
| 58 * (eay@cryptsoft.com). This product includes software written by Tim | |
| 59 * Hudson (tjh@cryptsoft.com). | |
| 60 * | |
| 61 */ | |
| 62 /* ==================================================================== | |
| 63 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
| 64 * | |
| 65 * Portions of the attached software ("Contribution") are developed by | |
| 66 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. | |
| 67 * | |
| 68 * The Contribution is licensed pursuant to the OpenSSL open source | |
| 69 * license provided above. | |
| 70 * | |
| 71 * The elliptic curve binary polynomial software is originally written by | |
| 72 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. | |
| 73 * | |
| 74 */ | |
| 75 | |
| 76 #ifndef HEADER_EC_H | |
| 77 #define HEADER_EC_H | |
| 78 | |
| 79 #include <openssl/opensslconf.h> | |
| 80 | |
| 81 #ifdef OPENSSL_NO_EC | |
| 82 #error EC is disabled. | |
| 83 #endif | |
| 84 | |
| 85 #include <openssl/asn1.h> | |
| 86 #include <openssl/symhacks.h> | |
| 87 #ifndef OPENSSL_NO_DEPRECATED | |
| 88 #include <openssl/bn.h> | |
| 89 #endif | |
| 90 | |
| 91 #ifdef __cplusplus | |
| 92 extern "C" { | |
| 93 #elif defined(__SUNPRO_C) | |
| 94 # if __SUNPRO_C >= 0x520 | |
| 95 # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) | |
| 96 # endif | |
| 97 #endif | |
| 98 | |
| 99 | |
| 100 #ifndef OPENSSL_ECC_MAX_FIELD_BITS | |
| 101 # define OPENSSL_ECC_MAX_FIELD_BITS 661 | |
| 102 #endif | |
| 103 | |
| 104 /** Enum for the point conversion form as defined in X9.62 (ECDSA) | |
| 105 * for the encoding of a elliptic curve point (x,y) */ | |
| 106 typedef enum { | |
| 107 /** the point is encoded as z||x, where the octet z specifies | |
| 108 * which solution of the quadratic equation y is */ | |
| 109 POINT_CONVERSION_COMPRESSED = 2, | |
| 110 /** the point is encoded as z||x||y, where z is the octet 0x02 */ | |
| 111 POINT_CONVERSION_UNCOMPRESSED = 4, | |
| 112 /** the point is encoded as z||x||y, where the octet z specifies | |
| 113 * which solution of the quadratic equation y is */ | |
| 114 POINT_CONVERSION_HYBRID = 6 | |
| 115 } point_conversion_form_t; | |
| 116 | |
| 117 | |
| 118 typedef struct ec_method_st EC_METHOD; | |
| 119 | |
| 120 typedef struct ec_group_st | |
| 121 /* | |
| 122 EC_METHOD *meth; | |
| 123 -- field definition | |
| 124 -- curve coefficients | |
| 125 -- optional generator with associated information (order, cofactor) | |
| 126 -- optional extra data (precomputed table for fast computation of multi
ples of generator) | |
| 127 -- ASN1 stuff | |
| 128 */ | |
| 129 EC_GROUP; | |
| 130 | |
| 131 typedef struct ec_point_st EC_POINT; | |
| 132 | |
| 133 | |
| 134 /********************************************************************/ | |
| 135 /* EC_METHODs for curves over GF(p) */ | |
| 136 /********************************************************************/ | |
| 137 | |
| 138 /** Returns the basic GFp ec methods which provides the basis for the | |
| 139 * optimized methods. | |
| 140 * \return EC_METHOD object | |
| 141 */ | |
| 142 const EC_METHOD *EC_GFp_simple_method(void); | |
| 143 | |
| 144 /** Returns GFp methods using montgomery multiplication. | |
| 145 * \return EC_METHOD object | |
| 146 */ | |
| 147 const EC_METHOD *EC_GFp_mont_method(void); | |
| 148 | |
| 149 /** Returns GFp methods using optimized methods for NIST recommended curves | |
| 150 * \return EC_METHOD object | |
| 151 */ | |
| 152 const EC_METHOD *EC_GFp_nist_method(void); | |
| 153 | |
| 154 #ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 | |
| 155 /** Returns 64-bit optimized methods for nistp224 | |
| 156 * \return EC_METHOD object | |
| 157 */ | |
| 158 const EC_METHOD *EC_GFp_nistp224_method(void); | |
| 159 | |
| 160 /** Returns 64-bit optimized methods for nistp256 | |
| 161 * \return EC_METHOD object | |
| 162 */ | |
| 163 const EC_METHOD *EC_GFp_nistp256_method(void); | |
| 164 | |
| 165 /** Returns 64-bit optimized methods for nistp521 | |
| 166 * \return EC_METHOD object | |
| 167 */ | |
| 168 const EC_METHOD *EC_GFp_nistp521_method(void); | |
| 169 #endif | |
| 170 | |
| 171 #ifndef OPENSSL_NO_EC2M | |
| 172 /********************************************************************/ | |
| 173 /* EC_METHOD for curves over GF(2^m) */ | |
| 174 /********************************************************************/ | |
| 175 | |
| 176 /** Returns the basic GF2m ec method | |
| 177 * \return EC_METHOD object | |
| 178 */ | |
| 179 const EC_METHOD *EC_GF2m_simple_method(void); | |
| 180 | |
| 181 #endif | |
| 182 | |
| 183 | |
| 184 /********************************************************************/ | |
| 185 /* EC_GROUP functions */ | |
| 186 /********************************************************************/ | |
| 187 | |
| 188 /** Creates a new EC_GROUP object | |
| 189 * \param meth EC_METHOD to use | |
| 190 * \return newly created EC_GROUP object or NULL in case of an error. | |
| 191 */ | |
| 192 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); | |
| 193 | |
| 194 /** Frees a EC_GROUP object | |
| 195 * \param group EC_GROUP object to be freed. | |
| 196 */ | |
| 197 void EC_GROUP_free(EC_GROUP *group); | |
| 198 | |
| 199 /** Clears and frees a EC_GROUP object | |
| 200 * \param group EC_GROUP object to be cleared and freed. | |
| 201 */ | |
| 202 void EC_GROUP_clear_free(EC_GROUP *group); | |
| 203 | |
| 204 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. | |
| 205 * \param dst destination EC_GROUP object | |
| 206 * \param src source EC_GROUP object | |
| 207 * \return 1 on success and 0 if an error occurred. | |
| 208 */ | |
| 209 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); | |
| 210 | |
| 211 /** Creates a new EC_GROUP object and copies the copies the content | |
| 212 * form src to the newly created EC_KEY object | |
| 213 * \param src source EC_GROUP object | |
| 214 * \return newly created EC_GROUP object or NULL in case of an error. | |
| 215 */ | |
| 216 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); | |
| 217 | |
| 218 /** Returns the EC_METHOD of the EC_GROUP object. | |
| 219 * \param group EC_GROUP object | |
| 220 * \return EC_METHOD used in this EC_GROUP object. | |
| 221 */ | |
| 222 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); | |
| 223 | |
| 224 /** Returns the field type of the EC_METHOD. | |
| 225 * \param meth EC_METHOD object | |
| 226 * \return NID of the underlying field type OID. | |
| 227 */ | |
| 228 int EC_METHOD_get_field_type(const EC_METHOD *meth); | |
| 229 | |
| 230 /** Sets the generator and it's order/cofactor of a EC_GROUP object. | |
| 231 * \param group EC_GROUP object | |
| 232 * \param generator EC_POINT object with the generator. | |
| 233 * \param order the order of the group generated by the generator. | |
| 234 * \param cofactor the index of the sub-group generated by the generator | |
| 235 * in the group of all points on the elliptic curve. | |
| 236 * \return 1 on success and 0 if an error occured | |
| 237 */ | |
| 238 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIG
NUM *order, const BIGNUM *cofactor); | |
| 239 | |
| 240 /** Returns the generator of a EC_GROUP object. | |
| 241 * \param group EC_GROUP object | |
| 242 * \return the currently used generator (possibly NULL). | |
| 243 */ | |
| 244 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); | |
| 245 | |
| 246 /** Gets the order of a EC_GROUP | |
| 247 * \param group EC_GROUP object | |
| 248 * \param order BIGNUM to which the order is copied | |
| 249 * \param ctx BN_CTX object (optional) | |
| 250 * \return 1 on success and 0 if an error occured | |
| 251 */ | |
| 252 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); | |
| 253 | |
| 254 /** Gets the cofactor of a EC_GROUP | |
| 255 * \param group EC_GROUP object | |
| 256 * \param cofactor BIGNUM to which the cofactor is copied | |
| 257 * \param ctx BN_CTX object (optional) | |
| 258 * \return 1 on success and 0 if an error occured | |
| 259 */ | |
| 260 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx); | |
| 261 | |
| 262 /** Sets the name of a EC_GROUP object | |
| 263 * \param group EC_GROUP object | |
| 264 * \param nid NID of the curve name OID | |
| 265 */ | |
| 266 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); | |
| 267 | |
| 268 /** Returns the curve name of a EC_GROUP object | |
| 269 * \param group EC_GROUP object | |
| 270 * \return NID of the curve name OID or 0 if not set. | |
| 271 */ | |
| 272 int EC_GROUP_get_curve_name(const EC_GROUP *group); | |
| 273 | |
| 274 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); | |
| 275 int EC_GROUP_get_asn1_flag(const EC_GROUP *group); | |
| 276 | |
| 277 void EC_GROUP_set_point_conversion_form(EC_GROUP *group, point_conversion_form_t
form); | |
| 278 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); | |
| 279 | |
| 280 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x); | |
| 281 size_t EC_GROUP_get_seed_len(const EC_GROUP *); | |
| 282 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); | |
| 283 | |
| 284 /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b | |
| 285 * \param group EC_GROUP object | |
| 286 * \param p BIGNUM with the prime number | |
| 287 * \param a BIGNUM with parameter a of the equation | |
| 288 * \param b BIGNUM with parameter b of the equation | |
| 289 * \param ctx BN_CTX object (optional) | |
| 290 * \return 1 on success and 0 if an error occured | |
| 291 */ | |
| 292 int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, co
nst BIGNUM *b, BN_CTX *ctx); | |
| 293 | |
| 294 /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b | |
| 295 * \param group EC_GROUP object | |
| 296 * \param p BIGNUM for the prime number | |
| 297 * \param a BIGNUM for parameter a of the equation | |
| 298 * \param b BIGNUM for parameter b of the equation | |
| 299 * \param ctx BN_CTX object (optional) | |
| 300 * \return 1 on success and 0 if an error occured | |
| 301 */ | |
| 302 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *
b, BN_CTX *ctx); | |
| 303 | |
| 304 #ifndef OPENSSL_NO_EC2M | |
| 305 /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b | |
| 306 * \param group EC_GROUP object | |
| 307 * \param p BIGNUM with the polynomial defining the underlying field | |
| 308 * \param a BIGNUM with parameter a of the equation | |
| 309 * \param b BIGNUM with parameter b of the equation | |
| 310 * \param ctx BN_CTX object (optional) | |
| 311 * \return 1 on success and 0 if an error occured | |
| 312 */ | |
| 313 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, c
onst BIGNUM *b, BN_CTX *ctx); | |
| 314 | |
| 315 /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 +
b | |
| 316 * \param group EC_GROUP object | |
| 317 * \param p BIGNUM for the polynomial defining the underlying field | |
| 318 * \param a BIGNUM for parameter a of the equation | |
| 319 * \param b BIGNUM for parameter b of the equation | |
| 320 * \param ctx BN_CTX object (optional) | |
| 321 * \return 1 on success and 0 if an error occured | |
| 322 */ | |
| 323 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM
*b, BN_CTX *ctx); | |
| 324 #endif | |
| 325 /** Returns the number of bits needed to represent a field element | |
| 326 * \param group EC_GROUP object | |
| 327 * \return number of bits needed to represent a field element | |
| 328 */ | |
| 329 int EC_GROUP_get_degree(const EC_GROUP *group); | |
| 330 | |
| 331 /** Checks whether the parameter in the EC_GROUP define a valid ec group | |
| 332 * \param group EC_GROUP object | |
| 333 * \param ctx BN_CTX object (optional) | |
| 334 * \return 1 if group is a valid ec group and 0 otherwise | |
| 335 */ | |
| 336 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); | |
| 337 | |
| 338 /** Checks whether the discriminant of the elliptic curve is zero or not | |
| 339 * \param group EC_GROUP object | |
| 340 * \param ctx BN_CTX object (optional) | |
| 341 * \return 1 if the discriminant is not zero and 0 otherwise | |
| 342 */ | |
| 343 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); | |
| 344 | |
| 345 /** Compares two EC_GROUP objects | |
| 346 * \param a first EC_GROUP object | |
| 347 * \param b second EC_GROUP object | |
| 348 * \param ctx BN_CTX object (optional) | |
| 349 * \return 0 if both groups are equal and 1 otherwise | |
| 350 */ | |
| 351 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); | |
| 352 | |
| 353 /* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() | |
| 354 * after choosing an appropriate EC_METHOD */ | |
| 355 | |
| 356 /** Creates a new EC_GROUP object with the specified parameters defined | |
| 357 * over GFp (defined by the equation y^2 = x^3 + a*x + b) | |
| 358 * \param p BIGNUM with the prime number | |
| 359 * \param a BIGNUM with the parameter a of the equation | |
| 360 * \param b BIGNUM with the parameter b of the equation | |
| 361 * \param ctx BN_CTX object (optional) | |
| 362 * \return newly created EC_GROUP object with the specified parameters | |
| 363 */ | |
| 364 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM
*b, BN_CTX *ctx); | |
| 365 #ifndef OPENSSL_NO_EC2M | |
| 366 /** Creates a new EC_GROUP object with the specified parameters defined | |
| 367 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) | |
| 368 * \param p BIGNUM with the polynomial defining the underlying field | |
| 369 * \param a BIGNUM with the parameter a of the equation | |
| 370 * \param b BIGNUM with the parameter b of the equation | |
| 371 * \param ctx BN_CTX object (optional) | |
| 372 * \return newly created EC_GROUP object with the specified parameters | |
| 373 */ | |
| 374 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM
*b, BN_CTX *ctx); | |
| 375 #endif | |
| 376 /** Creates a EC_GROUP object with a curve specified by a NID | |
| 377 * \param nid NID of the OID of the curve name | |
| 378 * \return newly created EC_GROUP object with specified curve or NULL | |
| 379 * if an error occurred | |
| 380 */ | |
| 381 EC_GROUP *EC_GROUP_new_by_curve_name(int nid); | |
| 382 | |
| 383 | |
| 384 /********************************************************************/ | |
| 385 /* handling of internal curves */ | |
| 386 /********************************************************************/ | |
| 387 | |
| 388 typedef struct { | |
| 389 int nid; | |
| 390 const char *comment; | |
| 391 } EC_builtin_curve; | |
| 392 | |
| 393 /* EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number | |
| 394 * of all available curves or zero if a error occurred. | |
| 395 * In case r ist not zero nitems EC_builtin_curve structures | |
| 396 * are filled with the data of the first nitems internal groups */ | |
| 397 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); | |
| 398 | |
| 399 | |
| 400 /********************************************************************/ | |
| 401 /* EC_POINT functions */ | |
| 402 /********************************************************************/ | |
| 403 | |
| 404 /** Creates a new EC_POINT object for the specified EC_GROUP | |
| 405 * \param group EC_GROUP the underlying EC_GROUP object | |
| 406 * \return newly created EC_POINT object or NULL if an error occurred | |
| 407 */ | |
| 408 EC_POINT *EC_POINT_new(const EC_GROUP *group); | |
| 409 | |
| 410 /** Frees a EC_POINT object | |
| 411 * \param point EC_POINT object to be freed | |
| 412 */ | |
| 413 void EC_POINT_free(EC_POINT *point); | |
| 414 | |
| 415 /** Clears and frees a EC_POINT object | |
| 416 * \param point EC_POINT object to be cleared and freed | |
| 417 */ | |
| 418 void EC_POINT_clear_free(EC_POINT *point); | |
| 419 | |
| 420 /** Copies EC_POINT object | |
| 421 * \param dst destination EC_POINT object | |
| 422 * \param src source EC_POINT object | |
| 423 * \return 1 on success and 0 if an error occured | |
| 424 */ | |
| 425 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); | |
| 426 | |
| 427 /** Creates a new EC_POINT object and copies the content of the supplied | |
| 428 * EC_POINT | |
| 429 * \param src source EC_POINT object | |
| 430 * \param group underlying the EC_GROUP object | |
| 431 * \return newly created EC_POINT object or NULL if an error occurred | |
| 432 */ | |
| 433 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); | |
| 434 | |
| 435 /** Returns the EC_METHOD used in EC_POINT object | |
| 436 * \param point EC_POINT object | |
| 437 * \return the EC_METHOD used | |
| 438 */ | |
| 439 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); | |
| 440 | |
| 441 /** Sets a point to infinity (neutral element) | |
| 442 * \param group underlying EC_GROUP object | |
| 443 * \param point EC_POINT to set to infinity | |
| 444 * \return 1 on success and 0 if an error occured | |
| 445 */ | |
| 446 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); | |
| 447 | |
| 448 /** Sets the jacobian projective coordinates of a EC_POINT over GFp | |
| 449 * \param group underlying EC_GROUP object | |
| 450 * \param p EC_POINT object | |
| 451 * \param x BIGNUM with the x-coordinate | |
| 452 * \param y BIGNUM with the y-coordinate | |
| 453 * \param z BIGNUM with the z-coordinate | |
| 454 * \param ctx BN_CTX object (optional) | |
| 455 * \return 1 on success and 0 if an error occured | |
| 456 */ | |
| 457 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | |
| 458 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx); | |
| 459 | |
| 460 /** Gets the jacobian projective coordinates of a EC_POINT over GFp | |
| 461 * \param group underlying EC_GROUP object | |
| 462 * \param p EC_POINT object | |
| 463 * \param x BIGNUM for the x-coordinate | |
| 464 * \param y BIGNUM for the y-coordinate | |
| 465 * \param z BIGNUM for the z-coordinate | |
| 466 * \param ctx BN_CTX object (optional) | |
| 467 * \return 1 on success and 0 if an error occured | |
| 468 */ | |
| 469 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, | |
| 470 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); | |
| 471 | |
| 472 /** Sets the affine coordinates of a EC_POINT over GFp | |
| 473 * \param group underlying EC_GROUP object | |
| 474 * \param p EC_POINT object | |
| 475 * \param x BIGNUM with the x-coordinate | |
| 476 * \param y BIGNUM with the y-coordinate | |
| 477 * \param ctx BN_CTX object (optional) | |
| 478 * \return 1 on success and 0 if an error occured | |
| 479 */ | |
| 480 int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | |
| 481 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); | |
| 482 | |
| 483 /** Gets the affine coordinates of a EC_POINT over GFp | |
| 484 * \param group underlying EC_GROUP object | |
| 485 * \param p EC_POINT object | |
| 486 * \param x BIGNUM for the x-coordinate | |
| 487 * \param y BIGNUM for the y-coordinate | |
| 488 * \param ctx BN_CTX object (optional) | |
| 489 * \return 1 on success and 0 if an error occured | |
| 490 */ | |
| 491 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, | |
| 492 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx); | |
| 493 | |
| 494 /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp | |
| 495 * \param group underlying EC_GROUP object | |
| 496 * \param p EC_POINT object | |
| 497 * \param x BIGNUM with x-coordinate | |
| 498 * \param y_bit integer with the y-Bit (either 0 or 1) | |
| 499 * \param ctx BN_CTX object (optional) | |
| 500 * \return 1 on success and 0 if an error occured | |
| 501 */ | |
| 502 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | |
| 503 const BIGNUM *x, int y_bit, BN_CTX *ctx); | |
| 504 #ifndef OPENSSL_NO_EC2M | |
| 505 /** Sets the affine coordinates of a EC_POINT over GF2m | |
| 506 * \param group underlying EC_GROUP object | |
| 507 * \param p EC_POINT object | |
| 508 * \param x BIGNUM with the x-coordinate | |
| 509 * \param y BIGNUM with the y-coordinate | |
| 510 * \param ctx BN_CTX object (optional) | |
| 511 * \return 1 on success and 0 if an error occured | |
| 512 */ | |
| 513 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, | |
| 514 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); | |
| 515 | |
| 516 /** Gets the affine coordinates of a EC_POINT over GF2m | |
| 517 * \param group underlying EC_GROUP object | |
| 518 * \param p EC_POINT object | |
| 519 * \param x BIGNUM for the x-coordinate | |
| 520 * \param y BIGNUM for the y-coordinate | |
| 521 * \param ctx BN_CTX object (optional) | |
| 522 * \return 1 on success and 0 if an error occured | |
| 523 */ | |
| 524 int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group, | |
| 525 const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx); | |
| 526 | |
| 527 /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m | |
| 528 * \param group underlying EC_GROUP object | |
| 529 * \param p EC_POINT object | |
| 530 * \param x BIGNUM with x-coordinate | |
| 531 * \param y_bit integer with the y-Bit (either 0 or 1) | |
| 532 * \param ctx BN_CTX object (optional) | |
| 533 * \return 1 on success and 0 if an error occured | |
| 534 */ | |
| 535 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, | |
| 536 const BIGNUM *x, int y_bit, BN_CTX *ctx); | |
| 537 #endif | |
| 538 /** Encodes a EC_POINT object to a octet string | |
| 539 * \param group underlying EC_GROUP object | |
| 540 * \param p EC_POINT object | |
| 541 * \param form point conversion form | |
| 542 * \param buf memory buffer for the result. If NULL the function returns | |
| 543 * required buffer size. | |
| 544 * \param len length of the memory buffer | |
| 545 * \param ctx BN_CTX object (optional) | |
| 546 * \return the length of the encoded octet string or 0 if an error occurred | |
| 547 */ | |
| 548 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, | |
| 549 point_conversion_form_t form, | |
| 550 unsigned char *buf, size_t len, BN_CTX *ctx); | |
| 551 | |
| 552 /** Decodes a EC_POINT from a octet string | |
| 553 * \param group underlying EC_GROUP object | |
| 554 * \param p EC_POINT object | |
| 555 * \param buf memory buffer with the encoded ec point | |
| 556 * \param len length of the encoded ec point | |
| 557 * \param ctx BN_CTX object (optional) | |
| 558 * \return 1 on success and 0 if an error occured | |
| 559 */ | |
| 560 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, | |
| 561 const unsigned char *buf, size_t len, BN_CTX *ctx); | |
| 562 | |
| 563 /* other interfaces to point2oct/oct2point: */ | |
| 564 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *, | |
| 565 point_conversion_form_t form, BIGNUM *, BN_CTX *); | |
| 566 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *, | |
| 567 EC_POINT *, BN_CTX *); | |
| 568 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, | |
| 569 point_conversion_form_t form, BN_CTX *); | |
| 570 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, | |
| 571 EC_POINT *, BN_CTX *); | |
| 572 | |
| 573 | |
| 574 /********************************************************************/ | |
| 575 /* functions for doing EC_POINT arithmetic */ | |
| 576 /********************************************************************/ | |
| 577 | |
| 578 /** Computes the sum of two EC_POINT | |
| 579 * \param group underlying EC_GROUP object | |
| 580 * \param r EC_POINT object for the result (r = a + b) | |
| 581 * \param a EC_POINT object with the first summand | |
| 582 * \param b EC_POINT object with the second summand | |
| 583 * \param ctx BN_CTX object (optional) | |
| 584 * \return 1 on success and 0 if an error occured | |
| 585 */ | |
| 586 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC
_POINT *b, BN_CTX *ctx); | |
| 587 | |
| 588 /** Computes the double of a EC_POINT | |
| 589 * \param group underlying EC_GROUP object | |
| 590 * \param r EC_POINT object for the result (r = 2 * a) | |
| 591 * \param a EC_POINT object | |
| 592 * \param ctx BN_CTX object (optional) | |
| 593 * \return 1 on success and 0 if an error occured | |
| 594 */ | |
| 595 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *
ctx); | |
| 596 | |
| 597 /** Computes the inverse of a EC_POINT | |
| 598 * \param group underlying EC_GROUP object | |
| 599 * \param a EC_POINT object to be inverted (it's used for the result as w
ell) | |
| 600 * \param ctx BN_CTX object (optional) | |
| 601 * \return 1 on success and 0 if an error occured | |
| 602 */ | |
| 603 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); | |
| 604 | |
| 605 /** Checks whether the point is the neutral element of the group | |
| 606 * \param group the underlying EC_GROUP object | |
| 607 * \param p EC_POINT object | |
| 608 * \return 1 if the point is the neutral element and 0 otherwise | |
| 609 */ | |
| 610 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); | |
| 611 | |
| 612 /** Checks whether the point is on the curve | |
| 613 * \param group underlying EC_GROUP object | |
| 614 * \param point EC_POINT object to check | |
| 615 * \param ctx BN_CTX object (optional) | |
| 616 * \return 1 if point if on the curve and 0 otherwise | |
| 617 */ | |
| 618 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *c
tx); | |
| 619 | |
| 620 /** Compares two EC_POINTs | |
| 621 * \param group underlying EC_GROUP object | |
| 622 * \param a first EC_POINT object | |
| 623 * \param b second EC_POINT object | |
| 624 * \param ctx BN_CTX object (optional) | |
| 625 * \return 0 if both points are equal and a value != 0 otherwise | |
| 626 */ | |
| 627 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN
_CTX *ctx); | |
| 628 | |
| 629 int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx); | |
| 630 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[],
BN_CTX *ctx); | |
| 631 | |
| 632 /** Computes r = generator * n sum_{i=0}^num p[i] * m[i] | |
| 633 * \param group underlying EC_GROUP object | |
| 634 * \param r EC_POINT object for the result | |
| 635 * \param n BIGNUM with the multiplier for the group generator (optional) | |
| 636 * \param num number futher summands | |
| 637 * \param p array of size num of EC_POINT objects | |
| 638 * \param m array of size num of BIGNUM objects | |
| 639 * \param ctx BN_CTX object (optional) | |
| 640 * \return 1 on success and 0 if an error occured | |
| 641 */ | |
| 642 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, size_t nu
m, const EC_POINT *p[], const BIGNUM *m[], BN_CTX *ctx); | |
| 643 | |
| 644 /** Computes r = generator * n + q * m | |
| 645 * \param group underlying EC_GROUP object | |
| 646 * \param r EC_POINT object for the result | |
| 647 * \param n BIGNUM with the multiplier for the group generator (optional) | |
| 648 * \param q EC_POINT object with the first factor of the second summand | |
| 649 * \param m BIGNUM with the second factor of the second summand | |
| 650 * \param ctx BN_CTX object (optional) | |
| 651 * \return 1 on success and 0 if an error occured | |
| 652 */ | |
| 653 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_P
OINT *q, const BIGNUM *m, BN_CTX *ctx); | |
| 654 | |
| 655 /** Stores multiples of generator for faster point multiplication | |
| 656 * \param group EC_GROUP object | |
| 657 * \param ctx BN_CTX object (optional) | |
| 658 * \return 1 on success and 0 if an error occured | |
| 659 */ | |
| 660 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); | |
| 661 | |
| 662 /** Reports whether a precomputation has been done | |
| 663 * \param group EC_GROUP object | |
| 664 * \return 1 if a pre-computation has been done and 0 otherwise | |
| 665 */ | |
| 666 int EC_GROUP_have_precompute_mult(const EC_GROUP *group); | |
| 667 | |
| 668 | |
| 669 /********************************************************************/ | |
| 670 /* ASN1 stuff */ | |
| 671 /********************************************************************/ | |
| 672 | |
| 673 /* EC_GROUP_get_basis_type() returns the NID of the basis type | |
| 674 * used to represent the field elements */ | |
| 675 int EC_GROUP_get_basis_type(const EC_GROUP *); | |
| 676 #ifndef OPENSSL_NO_EC2M | |
| 677 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); | |
| 678 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, | |
| 679 unsigned int *k2, unsigned int *k3); | |
| 680 #endif | |
| 681 | |
| 682 #define OPENSSL_EC_NAMED_CURVE 0x001 | |
| 683 | |
| 684 typedef struct ecpk_parameters_st ECPKPARAMETERS; | |
| 685 | |
| 686 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); | |
| 687 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); | |
| 688 | |
| 689 #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParam
eters,bp,x) | |
| 690 #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKPara
meters,bp,x) | |
| 691 #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \ | |
| 692 (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x)) | |
| 693 #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \ | |
| 694 (unsigned char *)(x)) | |
| 695 | |
| 696 #ifndef OPENSSL_NO_BIO | |
| 697 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off); | |
| 698 #endif | |
| 699 #ifndef OPENSSL_NO_FP_API | |
| 700 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); | |
| 701 #endif | |
| 702 | |
| 703 | |
| 704 /********************************************************************/ | |
| 705 /* EC_KEY functions */ | |
| 706 /********************************************************************/ | |
| 707 | |
| 708 typedef struct ec_key_st EC_KEY; | |
| 709 | |
| 710 /* some values for the encoding_flag */ | |
| 711 #define EC_PKEY_NO_PARAMETERS 0x001 | |
| 712 #define EC_PKEY_NO_PUBKEY 0x002 | |
| 713 | |
| 714 /* some values for the flags field */ | |
| 715 #define EC_FLAG_NON_FIPS_ALLOW 0x1 | |
| 716 #define EC_FLAG_FIPS_CHECKED 0x2 | |
| 717 | |
| 718 /** Creates a new EC_KEY object. | |
| 719 * \return EC_KEY object or NULL if an error occurred. | |
| 720 */ | |
| 721 EC_KEY *EC_KEY_new(void); | |
| 722 | |
| 723 int EC_KEY_get_flags(const EC_KEY *key); | |
| 724 | |
| 725 void EC_KEY_set_flags(EC_KEY *key, int flags); | |
| 726 | |
| 727 void EC_KEY_clear_flags(EC_KEY *key, int flags); | |
| 728 | |
| 729 /** Creates a new EC_KEY object using a named curve as underlying | |
| 730 * EC_GROUP object. | |
| 731 * \param nid NID of the named curve. | |
| 732 * \return EC_KEY object or NULL if an error occurred. | |
| 733 */ | |
| 734 EC_KEY *EC_KEY_new_by_curve_name(int nid); | |
| 735 | |
| 736 /** Frees a EC_KEY object. | |
| 737 * \param key EC_KEY object to be freed. | |
| 738 */ | |
| 739 void EC_KEY_free(EC_KEY *key); | |
| 740 | |
| 741 /** Copies a EC_KEY object. | |
| 742 * \param dst destination EC_KEY object | |
| 743 * \param src src EC_KEY object | |
| 744 * \return dst or NULL if an error occurred. | |
| 745 */ | |
| 746 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); | |
| 747 | |
| 748 /** Creates a new EC_KEY object and copies the content from src to it. | |
| 749 * \param src the source EC_KEY object | |
| 750 * \return newly created EC_KEY object or NULL if an error occurred. | |
| 751 */ | |
| 752 EC_KEY *EC_KEY_dup(const EC_KEY *src); | |
| 753 | |
| 754 /** Increases the internal reference count of a EC_KEY object. | |
| 755 * \param key EC_KEY object | |
| 756 * \return 1 on success and 0 if an error occurred. | |
| 757 */ | |
| 758 int EC_KEY_up_ref(EC_KEY *key); | |
| 759 | |
| 760 /** Returns the EC_GROUP object of a EC_KEY object | |
| 761 * \param key EC_KEY object | |
| 762 * \return the EC_GROUP object (possibly NULL). | |
| 763 */ | |
| 764 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); | |
| 765 | |
| 766 /** Sets the EC_GROUP of a EC_KEY object. | |
| 767 * \param key EC_KEY object | |
| 768 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY | |
| 769 * object will use an own copy of the EC_GROUP). | |
| 770 * \return 1 on success and 0 if an error occurred. | |
| 771 */ | |
| 772 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); | |
| 773 | |
| 774 /** Returns the private key of a EC_KEY object. | |
| 775 * \param key EC_KEY object | |
| 776 * \return a BIGNUM with the private key (possibly NULL). | |
| 777 */ | |
| 778 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); | |
| 779 | |
| 780 /** Sets the private key of a EC_KEY object. | |
| 781 * \param key EC_KEY object | |
| 782 * \param prv BIGNUM with the private key (note: the EC_KEY object | |
| 783 * will use an own copy of the BIGNUM). | |
| 784 * \return 1 on success and 0 if an error occurred. | |
| 785 */ | |
| 786 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); | |
| 787 | |
| 788 /** Returns the public key of a EC_KEY object. | |
| 789 * \param key the EC_KEY object | |
| 790 * \return a EC_POINT object with the public key (possibly NULL) | |
| 791 */ | |
| 792 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); | |
| 793 | |
| 794 /** Sets the public key of a EC_KEY object. | |
| 795 * \param key EC_KEY object | |
| 796 * \param pub EC_POINT object with the public key (note: the EC_KEY object | |
| 797 * will use an own copy of the EC_POINT object). | |
| 798 * \return 1 on success and 0 if an error occurred. | |
| 799 */ | |
| 800 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); | |
| 801 | |
| 802 unsigned EC_KEY_get_enc_flags(const EC_KEY *key); | |
| 803 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); | |
| 804 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); | |
| 805 void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform); | |
| 806 /* functions to set/get method specific data */ | |
| 807 void *EC_KEY_get_key_method_data(EC_KEY *key, | |
| 808 void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_
func)(void *)); | |
| 809 /** Sets the key method data of an EC_KEY object, if none has yet been set. | |
| 810 * \param key EC_KEY object | |
| 811 * \param data opaque data to install. | |
| 812 * \param dup_func a function that duplicates |data|. | |
| 813 * \param free_func a function that frees |data|. | |
| 814 * \param clear_free_func a function that wipes and frees |data|. | |
| 815 * \return the previously set data pointer, or NULL if |data| was inserted. | |
| 816 */ | |
| 817 void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data, | |
| 818 void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_
func)(void *)); | |
| 819 /* wrapper functions for the underlying EC_GROUP object */ | |
| 820 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); | |
| 821 | |
| 822 /** Creates a table of pre-computed multiples of the generator to | |
| 823 * accelerate further EC_KEY operations. | |
| 824 * \param key EC_KEY object | |
| 825 * \param ctx BN_CTX object (optional) | |
| 826 * \return 1 on success and 0 if an error occurred. | |
| 827 */ | |
| 828 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); | |
| 829 | |
| 830 /** Creates a new ec private (and optional a new public) key. | |
| 831 * \param key EC_KEY object | |
| 832 * \return 1 on success and 0 if an error occurred. | |
| 833 */ | |
| 834 int EC_KEY_generate_key(EC_KEY *key); | |
| 835 | |
| 836 /** Verifies that a private and/or public key is valid. | |
| 837 * \param key the EC_KEY object | |
| 838 * \return 1 on success and 0 otherwise. | |
| 839 */ | |
| 840 int EC_KEY_check_key(const EC_KEY *key); | |
| 841 | |
| 842 /** Sets a public key from affine coordindates performing | |
| 843 * neccessary NIST PKV tests. | |
| 844 * \param key the EC_KEY object | |
| 845 * \param x public key x coordinate | |
| 846 * \param y public key y coordinate | |
| 847 * \return 1 on success and 0 otherwise. | |
| 848 */ | |
| 849 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, BIGNUM *y); | |
| 850 | |
| 851 | |
| 852 /********************************************************************/ | |
| 853 /* de- and encoding functions for SEC1 ECPrivateKey */ | |
| 854 /********************************************************************/ | |
| 855 | |
| 856 /** Decodes a private key from a memory buffer. | |
| 857 * \param key a pointer to a EC_KEY object which should be used (or NULL) | |
| 858 * \param in pointer to memory with the DER encoded private key | |
| 859 * \param len length of the DER encoded private key | |
| 860 * \return the decoded private key or NULL if an error occurred. | |
| 861 */ | |
| 862 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len); | |
| 863 | |
| 864 /** Encodes a private key object and stores the result in a buffer. | |
| 865 * \param key the EC_KEY object to encode | |
| 866 * \param out the buffer for the result (if NULL the function returns number | |
| 867 * of bytes needed). | |
| 868 * \return 1 on success and 0 if an error occurred. | |
| 869 */ | |
| 870 int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out); | |
| 871 | |
| 872 | |
| 873 /********************************************************************/ | |
| 874 /* de- and encoding functions for EC parameters */ | |
| 875 /********************************************************************/ | |
| 876 | |
| 877 /** Decodes ec parameter from a memory buffer. | |
| 878 * \param key a pointer to a EC_KEY object which should be used (or NULL) | |
| 879 * \param in pointer to memory with the DER encoded ec parameters | |
| 880 * \param len length of the DER encoded ec parameters | |
| 881 * \return a EC_KEY object with the decoded parameters or NULL if an error | |
| 882 * occurred. | |
| 883 */ | |
| 884 EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len); | |
| 885 | |
| 886 /** Encodes ec parameter and stores the result in a buffer. | |
| 887 * \param key the EC_KEY object with ec paramters to encode | |
| 888 * \param out the buffer for the result (if NULL the function returns number | |
| 889 * of bytes needed). | |
| 890 * \return 1 on success and 0 if an error occurred. | |
| 891 */ | |
| 892 int i2d_ECParameters(EC_KEY *key, unsigned char **out); | |
| 893 | |
| 894 | |
| 895 /********************************************************************/ | |
| 896 /* de- and encoding functions for EC public key */ | |
| 897 /* (octet string, not DER -- hence 'o2i' and 'i2o') */ | |
| 898 /********************************************************************/ | |
| 899 | |
| 900 /** Decodes a ec public key from a octet string. | |
| 901 * \param key a pointer to a EC_KEY object which should be used | |
| 902 * \param in memory buffer with the encoded public key | |
| 903 * \param len length of the encoded public key | |
| 904 * \return EC_KEY object with decoded public key or NULL if an error | |
| 905 * occurred. | |
| 906 */ | |
| 907 EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len); | |
| 908 | |
| 909 /** Encodes a ec public key in an octet string. | |
| 910 * \param key the EC_KEY object with the public key | |
| 911 * \param out the buffer for the result (if NULL the function returns number | |
| 912 * of bytes needed). | |
| 913 * \return 1 on success and 0 if an error occurred | |
| 914 */ | |
| 915 int i2o_ECPublicKey(EC_KEY *key, unsigned char **out); | |
| 916 | |
| 917 #ifndef OPENSSL_NO_BIO | |
| 918 /** Prints out the ec parameters on human readable form. | |
| 919 * \param bp BIO object to which the information is printed | |
| 920 * \param key EC_KEY object | |
| 921 * \return 1 on success and 0 if an error occurred | |
| 922 */ | |
| 923 int ECParameters_print(BIO *bp, const EC_KEY *key); | |
| 924 | |
| 925 /** Prints out the contents of a EC_KEY object | |
| 926 * \param bp BIO object to which the information is printed | |
| 927 * \param key EC_KEY object | |
| 928 * \param off line offset | |
| 929 * \return 1 on success and 0 if an error occurred | |
| 930 */ | |
| 931 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); | |
| 932 | |
| 933 #endif | |
| 934 #ifndef OPENSSL_NO_FP_API | |
| 935 /** Prints out the ec parameters on human readable form. | |
| 936 * \param fp file descriptor to which the information is printed | |
| 937 * \param key EC_KEY object | |
| 938 * \return 1 on success and 0 if an error occurred | |
| 939 */ | |
| 940 int ECParameters_print_fp(FILE *fp, const EC_KEY *key); | |
| 941 | |
| 942 /** Prints out the contents of a EC_KEY object | |
| 943 * \param fp file descriptor to which the information is printed | |
| 944 * \param key EC_KEY object | |
| 945 * \param off line offset | |
| 946 * \return 1 on success and 0 if an error occurred | |
| 947 */ | |
| 948 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); | |
| 949 | |
| 950 #endif | |
| 951 | |
| 952 #define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters
,x) | |
| 953 | |
| 954 #ifndef __cplusplus | |
| 955 #if defined(__SUNPRO_C) | |
| 956 # if __SUNPRO_C >= 0x520 | |
| 957 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPL
ETE) | |
| 958 # endif | |
| 959 # endif | |
| 960 #endif | |
| 961 | |
| 962 #define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \ | |
| 963 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, EVP_PKEY_OP_PARAMGEN, \ | |
| 964 EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL) | |
| 965 | |
| 966 | |
| 967 #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) | |
| 968 | |
| 969 /* BEGIN ERROR CODES */ | |
| 970 /* The following lines are auto generated by the script mkerr.pl. Any changes | |
| 971 * made after this point may be overwritten when the script is next run. | |
| 972 */ | |
| 973 void ERR_load_EC_strings(void); | |
| 974 | |
| 975 /* Error codes for the EC functions. */ | |
| 976 | |
| 977 /* Function codes. */ | |
| 978 #define EC_F_BN_TO_FELEM 224 | |
| 979 #define EC_F_COMPUTE_WNAF 143 | |
| 980 #define EC_F_D2I_ECPARAMETERS 144 | |
| 981 #define EC_F_D2I_ECPKPARAMETERS 145 | |
| 982 #define EC_F_D2I_ECPRIVATEKEY 146 | |
| 983 #define EC_F_DO_EC_KEY_PRINT 221 | |
| 984 #define EC_F_ECKEY_PARAM2TYPE 223 | |
| 985 #define EC_F_ECKEY_PARAM_DECODE 212 | |
| 986 #define EC_F_ECKEY_PRIV_DECODE 213 | |
| 987 #define EC_F_ECKEY_PRIV_ENCODE 214 | |
| 988 #define EC_F_ECKEY_PUB_DECODE 215 | |
| 989 #define EC_F_ECKEY_PUB_ENCODE 216 | |
| 990 #define EC_F_ECKEY_TYPE2PARAM 220 | |
| 991 #define EC_F_ECPARAMETERS_PRINT 147 | |
| 992 #define EC_F_ECPARAMETERS_PRINT_FP 148 | |
| 993 #define EC_F_ECPKPARAMETERS_PRINT 149 | |
| 994 #define EC_F_ECPKPARAMETERS_PRINT_FP 150 | |
| 995 #define EC_F_ECP_NIST_MOD_192 203 | |
| 996 #define EC_F_ECP_NIST_MOD_224 204 | |
| 997 #define EC_F_ECP_NIST_MOD_256 205 | |
| 998 #define EC_F_ECP_NIST_MOD_521 206 | |
| 999 #define EC_F_EC_ASN1_GROUP2CURVE 153 | |
| 1000 #define EC_F_EC_ASN1_GROUP2FIELDID 154 | |
| 1001 #define EC_F_EC_ASN1_GROUP2PARAMETERS 155 | |
| 1002 #define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156 | |
| 1003 #define EC_F_EC_ASN1_PARAMETERS2GROUP 157 | |
| 1004 #define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158 | |
| 1005 #define EC_F_EC_EX_DATA_SET_DATA 211 | |
| 1006 #define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208 | |
| 1007 #define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159 | |
| 1008 #define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195 | |
| 1009 #define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160 | |
| 1010 #define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161 | |
| 1011 #define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162 | |
| 1012 #define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163 | |
| 1013 #define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164 | |
| 1014 #define EC_F_EC_GFP_MONT_FIELD_DECODE 133 | |
| 1015 #define EC_F_EC_GFP_MONT_FIELD_ENCODE 134 | |
| 1016 #define EC_F_EC_GFP_MONT_FIELD_MUL 131 | |
| 1017 #define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209 | |
| 1018 #define EC_F_EC_GFP_MONT_FIELD_SQR 132 | |
| 1019 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189 | |
| 1020 #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135 | |
| 1021 #define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE 225 | |
| 1022 #define EC_F_EC_GFP_NISTP224_POINTS_MUL 228 | |
| 1023 #define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226 | |
| 1024 #define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE 230 | |
| 1025 #define EC_F_EC_GFP_NISTP256_POINTS_MUL 231 | |
| 1026 #define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232 | |
| 1027 #define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE 233 | |
| 1028 #define EC_F_EC_GFP_NISTP521_POINTS_MUL 234 | |
| 1029 #define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235 | |
| 1030 #define EC_F_EC_GFP_NIST_FIELD_MUL 200 | |
| 1031 #define EC_F_EC_GFP_NIST_FIELD_SQR 201 | |
| 1032 #define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202 | |
| 1033 #define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165 | |
| 1034 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166 | |
| 1035 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100 | |
| 1036 #define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101 | |
| 1037 #define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102 | |
| 1038 #define EC_F_EC_GFP_SIMPLE_OCT2POINT 103 | |
| 1039 #define EC_F_EC_GFP_SIMPLE_POINT2OCT 104 | |
| 1040 #define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137 | |
| 1041 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167 | |
| 1042 #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105 | |
| 1043 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168 | |
| 1044 #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128 | |
| 1045 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169 | |
| 1046 #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129 | |
| 1047 #define EC_F_EC_GROUP_CHECK 170 | |
| 1048 #define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171 | |
| 1049 #define EC_F_EC_GROUP_COPY 106 | |
| 1050 #define EC_F_EC_GROUP_GET0_GENERATOR 139 | |
| 1051 #define EC_F_EC_GROUP_GET_COFACTOR 140 | |
| 1052 #define EC_F_EC_GROUP_GET_CURVE_GF2M 172 | |
| 1053 #define EC_F_EC_GROUP_GET_CURVE_GFP 130 | |
| 1054 #define EC_F_EC_GROUP_GET_DEGREE 173 | |
| 1055 #define EC_F_EC_GROUP_GET_ORDER 141 | |
| 1056 #define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193 | |
| 1057 #define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194 | |
| 1058 #define EC_F_EC_GROUP_NEW 108 | |
| 1059 #define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174 | |
| 1060 #define EC_F_EC_GROUP_NEW_FROM_DATA 175 | |
| 1061 #define EC_F_EC_GROUP_PRECOMPUTE_MULT 142 | |
| 1062 #define EC_F_EC_GROUP_SET_CURVE_GF2M 176 | |
| 1063 #define EC_F_EC_GROUP_SET_CURVE_GFP 109 | |
| 1064 #define EC_F_EC_GROUP_SET_EXTRA_DATA 110 | |
| 1065 #define EC_F_EC_GROUP_SET_GENERATOR 111 | |
| 1066 #define EC_F_EC_KEY_CHECK_KEY 177 | |
| 1067 #define EC_F_EC_KEY_COPY 178 | |
| 1068 #define EC_F_EC_KEY_GENERATE_KEY 179 | |
| 1069 #define EC_F_EC_KEY_NEW 182 | |
| 1070 #define EC_F_EC_KEY_PRINT 180 | |
| 1071 #define EC_F_EC_KEY_PRINT_FP 181 | |
| 1072 #define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES 229 | |
| 1073 #define EC_F_EC_POINTS_MAKE_AFFINE 136 | |
| 1074 #define EC_F_EC_POINT_ADD 112 | |
| 1075 #define EC_F_EC_POINT_CMP 113 | |
| 1076 #define EC_F_EC_POINT_COPY 114 | |
| 1077 #define EC_F_EC_POINT_DBL 115 | |
| 1078 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183 | |
| 1079 #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116 | |
| 1080 #define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117 | |
| 1081 #define EC_F_EC_POINT_INVERT 210 | |
| 1082 #define EC_F_EC_POINT_IS_AT_INFINITY 118 | |
| 1083 #define EC_F_EC_POINT_IS_ON_CURVE 119 | |
| 1084 #define EC_F_EC_POINT_MAKE_AFFINE 120 | |
| 1085 #define EC_F_EC_POINT_MUL 184 | |
| 1086 #define EC_F_EC_POINT_NEW 121 | |
| 1087 #define EC_F_EC_POINT_OCT2POINT 122 | |
| 1088 #define EC_F_EC_POINT_POINT2OCT 123 | |
| 1089 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185 | |
| 1090 #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124 | |
| 1091 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186 | |
| 1092 #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125 | |
| 1093 #define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126 | |
| 1094 #define EC_F_EC_POINT_SET_TO_INFINITY 127 | |
| 1095 #define EC_F_EC_PRE_COMP_DUP 207 | |
| 1096 #define EC_F_EC_PRE_COMP_NEW 196 | |
| 1097 #define EC_F_EC_WNAF_MUL 187 | |
| 1098 #define EC_F_EC_WNAF_PRECOMPUTE_MULT 188 | |
| 1099 #define EC_F_I2D_ECPARAMETERS 190 | |
| 1100 #define EC_F_I2D_ECPKPARAMETERS 191 | |
| 1101 #define EC_F_I2D_ECPRIVATEKEY 192 | |
| 1102 #define EC_F_I2O_ECPUBLICKEY 151 | |
| 1103 #define EC_F_NISTP224_PRE_COMP_NEW 227 | |
| 1104 #define EC_F_NISTP256_PRE_COMP_NEW 236 | |
| 1105 #define EC_F_NISTP521_PRE_COMP_NEW 237 | |
| 1106 #define EC_F_O2I_ECPUBLICKEY 152 | |
| 1107 #define EC_F_OLD_EC_PRIV_DECODE 222 | |
| 1108 #define EC_F_PKEY_EC_CTRL 197 | |
| 1109 #define EC_F_PKEY_EC_CTRL_STR 198 | |
| 1110 #define EC_F_PKEY_EC_DERIVE 217 | |
| 1111 #define EC_F_PKEY_EC_KEYGEN 199 | |
| 1112 #define EC_F_PKEY_EC_PARAMGEN 219 | |
| 1113 #define EC_F_PKEY_EC_SIGN 218 | |
| 1114 | |
| 1115 /* Reason codes. */ | |
| 1116 #define EC_R_ASN1_ERROR 115 | |
| 1117 #define EC_R_ASN1_UNKNOWN_FIELD 116 | |
| 1118 #define EC_R_BIGNUM_OUT_OF_RANGE 144 | |
| 1119 #define EC_R_BUFFER_TOO_SMALL 100 | |
| 1120 #define EC_R_COORDINATES_OUT_OF_RANGE 146 | |
| 1121 #define EC_R_D2I_ECPKPARAMETERS_FAILURE 117 | |
| 1122 #define EC_R_DECODE_ERROR 142 | |
| 1123 #define EC_R_DISCRIMINANT_IS_ZERO 118 | |
| 1124 #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119 | |
| 1125 #define EC_R_FIELD_TOO_LARGE 143 | |
| 1126 #define EC_R_GF2M_NOT_SUPPORTED 147 | |
| 1127 #define EC_R_GROUP2PKPARAMETERS_FAILURE 120 | |
| 1128 #define EC_R_I2D_ECPKPARAMETERS_FAILURE 121 | |
| 1129 #define EC_R_INCOMPATIBLE_OBJECTS 101 | |
| 1130 #define EC_R_INVALID_ARGUMENT 112 | |
| 1131 #define EC_R_INVALID_COMPRESSED_POINT 110 | |
| 1132 #define EC_R_INVALID_COMPRESSION_BIT 109 | |
| 1133 #define EC_R_INVALID_CURVE 141 | |
| 1134 #define EC_R_INVALID_DIGEST_TYPE 138 | |
| 1135 #define EC_R_INVALID_ENCODING 102 | |
| 1136 #define EC_R_INVALID_FIELD 103 | |
| 1137 #define EC_R_INVALID_FORM 104 | |
| 1138 #define EC_R_INVALID_GROUP_ORDER 122 | |
| 1139 #define EC_R_INVALID_PENTANOMIAL_BASIS 132 | |
| 1140 #define EC_R_INVALID_PRIVATE_KEY 123 | |
| 1141 #define EC_R_INVALID_TRINOMIAL_BASIS 137 | |
| 1142 #define EC_R_KEYS_NOT_SET 140 | |
| 1143 #define EC_R_MISSING_PARAMETERS 124 | |
| 1144 #define EC_R_MISSING_PRIVATE_KEY 125 | |
| 1145 #define EC_R_NOT_A_NIST_PRIME 135 | |
| 1146 #define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136 | |
| 1147 #define EC_R_NOT_IMPLEMENTED 126 | |
| 1148 #define EC_R_NOT_INITIALIZED 111 | |
| 1149 #define EC_R_NO_FIELD_MOD 133 | |
| 1150 #define EC_R_NO_PARAMETERS_SET 139 | |
| 1151 #define EC_R_PASSED_NULL_PARAMETER 134 | |
| 1152 #define EC_R_PKPARAMETERS2GROUP_FAILURE 127 | |
| 1153 #define EC_R_POINT_AT_INFINITY 106 | |
| 1154 #define EC_R_POINT_IS_NOT_ON_CURVE 107 | |
| 1155 #define EC_R_SLOT_FULL 108 | |
| 1156 #define EC_R_UNDEFINED_GENERATOR 113 | |
| 1157 #define EC_R_UNDEFINED_ORDER 128 | |
| 1158 #define EC_R_UNKNOWN_GROUP 129 | |
| 1159 #define EC_R_UNKNOWN_ORDER 114 | |
| 1160 #define EC_R_UNSUPPORTED_FIELD 131 | |
| 1161 #define EC_R_WRONG_CURVE_PARAMETERS 145 | |
| 1162 #define EC_R_WRONG_ORDER 130 | |
| 1163 | |
| 1164 #ifdef __cplusplus | |
| 1165 } | |
| 1166 #endif | |
| 1167 #endif | |
| OLD | NEW |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master