1 /* 2 * Copyright 2002-2021 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved 4 * 5 * Licensed under the Apache License 2.0 (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 9 */ 10 11 #ifndef OPENSSL_EC_H 12 # define OPENSSL_EC_H 13 # pragma once 14 15 # include <openssl/macros.h> 16 # ifndef OPENSSL_NO_DEPRECATED_3_0 17 # define HEADER_EC_H 18 # endif 19 20 # include <openssl/opensslconf.h> 21 # include <openssl/types.h> 22 23 # ifdef __cplusplus 24 extern "C" { 25 # endif 26 27 /* Values for EVP_PKEY_CTX_set_ec_param_enc() */ 28 # define OPENSSL_EC_EXPLICIT_CURVE 0x000 29 # define OPENSSL_EC_NAMED_CURVE 0x001 30 31 int EVP_PKEY_CTX_set_ec_paramgen_curve_nid(EVP_PKEY_CTX *ctx, int nid); 32 int EVP_PKEY_CTX_set_ec_param_enc(EVP_PKEY_CTX *ctx, int param_enc); 33 int EVP_PKEY_CTX_set_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx, int cofactor_mode); 34 int EVP_PKEY_CTX_get_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx); 35 36 int EVP_PKEY_CTX_set_ecdh_kdf_type(EVP_PKEY_CTX *ctx, int kdf); 37 int EVP_PKEY_CTX_get_ecdh_kdf_type(EVP_PKEY_CTX *ctx); 38 39 int EVP_PKEY_CTX_set_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md); 40 int EVP_PKEY_CTX_get_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD **md); 41 42 int EVP_PKEY_CTX_set_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int len); 43 int EVP_PKEY_CTX_get_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int *len); 44 45 int EVP_PKEY_CTX_set0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char *ukm, 46 int len); 47 # ifndef OPENSSL_NO_DEPRECATED_3_0 48 OSSL_DEPRECATEDIN_3_0 49 int EVP_PKEY_CTX_get0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char **ukm); 50 # endif 51 52 # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) 53 # define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2) 54 # define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3) 55 # define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4) 56 # define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5) 57 # define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6) 58 # define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7) 59 # define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8) 60 # define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9) 61 # define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10) 62 63 /* KDF types */ 64 # define EVP_PKEY_ECDH_KDF_NONE 1 65 # define EVP_PKEY_ECDH_KDF_X9_63 2 66 /* 67 * The old name for EVP_PKEY_ECDH_KDF_X9_63 68 * The ECDH KDF specification has been mistakenly attributed to ANSI X9.62, 69 * it is actually specified in ANSI X9.63. 70 * This identifier is retained for backwards compatibility 71 */ 72 # define EVP_PKEY_ECDH_KDF_X9_62 EVP_PKEY_ECDH_KDF_X9_63 73 74 /** Enum for the point conversion form as defined in X9.62 (ECDSA) 75 * for the encoding of a elliptic curve point (x,y) */ 76 typedef enum { 77 /** the point is encoded as z||x, where the octet z specifies 78 * which solution of the quadratic equation y is */ 79 POINT_CONVERSION_COMPRESSED = 2, 80 /** the point is encoded as z||x||y, where z is the octet 0x04 */ 81 POINT_CONVERSION_UNCOMPRESSED = 4, 82 /** the point is encoded as z||x||y, where the octet z specifies 83 * which solution of the quadratic equation y is */ 84 POINT_CONVERSION_HYBRID = 6 85 } point_conversion_form_t; 86 87 const char *OSSL_EC_curve_nid2name(int nid); 88 89 # ifndef OPENSSL_NO_EC 90 # include <openssl/asn1.h> 91 # include <openssl/symhacks.h> 92 # ifndef OPENSSL_NO_DEPRECATED_1_1_0 93 # include <openssl/bn.h> 94 # endif 95 # include <openssl/ecerr.h> 96 97 # ifndef OPENSSL_ECC_MAX_FIELD_BITS 98 # define OPENSSL_ECC_MAX_FIELD_BITS 661 99 # endif 100 101 # include <openssl/params.h> 102 # ifndef OPENSSL_NO_DEPRECATED_3_0 103 typedef struct ec_method_st EC_METHOD; 104 # endif 105 typedef struct ec_group_st EC_GROUP; 106 typedef struct ec_point_st EC_POINT; 107 typedef struct ecpk_parameters_st ECPKPARAMETERS; 108 typedef struct ec_parameters_st ECPARAMETERS; 109 110 /********************************************************************/ 111 /* EC_METHODs for curves over GF(p) */ 112 /********************************************************************/ 113 114 # ifndef OPENSSL_NO_DEPRECATED_3_0 115 /** Returns the basic GFp ec methods which provides the basis for the 116 * optimized methods. 117 * \return EC_METHOD object 118 */ 119 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_simple_method(void); 120 121 /** Returns GFp methods using montgomery multiplication. 122 * \return EC_METHOD object 123 */ 124 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_mont_method(void); 125 126 /** Returns GFp methods using optimized methods for NIST recommended curves 127 * \return EC_METHOD object 128 */ 129 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nist_method(void); 130 131 # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 132 /** Returns 64-bit optimized methods for nistp224 133 * \return EC_METHOD object 134 */ 135 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp224_method(void); 136 137 /** Returns 64-bit optimized methods for nistp256 138 * \return EC_METHOD object 139 */ 140 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp256_method(void); 141 142 /** Returns 64-bit optimized methods for nistp521 143 * \return EC_METHOD object 144 */ 145 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp521_method(void); 146 # endif /* OPENSSL_NO_EC_NISTP_64_GCC_128 */ 147 148 # ifndef OPENSSL_NO_EC2M 149 /********************************************************************/ 150 /* EC_METHOD for curves over GF(2^m) */ 151 /********************************************************************/ 152 153 /** Returns the basic GF2m ec method 154 * \return EC_METHOD object 155 */ 156 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GF2m_simple_method(void); 157 158 # endif 159 160 /********************************************************************/ 161 /* EC_GROUP functions */ 162 /********************************************************************/ 163 164 /** 165 * Creates a new EC_GROUP object 166 * \param meth EC_METHOD to use 167 * \return newly created EC_GROUP object or NULL in case of an error. 168 */ 169 OSSL_DEPRECATEDIN_3_0 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); 170 171 /** Clears and frees a EC_GROUP object 172 * \param group EC_GROUP object to be cleared and freed. 173 */ 174 OSSL_DEPRECATEDIN_3_0 void EC_GROUP_clear_free(EC_GROUP *group); 175 176 /** Returns the EC_METHOD of the EC_GROUP object. 177 * \param group EC_GROUP object 178 * \return EC_METHOD used in this EC_GROUP object. 179 */ 180 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); 181 182 /** Returns the field type of the EC_METHOD. 183 * \param meth EC_METHOD object 184 * \return NID of the underlying field type OID. 185 */ 186 OSSL_DEPRECATEDIN_3_0 int EC_METHOD_get_field_type(const EC_METHOD *meth); 187 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 188 189 /** Frees a EC_GROUP object 190 * \param group EC_GROUP object to be freed. 191 */ 192 void EC_GROUP_free(EC_GROUP *group); 193 194 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. 195 * \param dst destination EC_GROUP object 196 * \param src source EC_GROUP object 197 * \return 1 on success and 0 if an error occurred. 198 */ 199 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); 200 201 /** Creates a new EC_GROUP object and copies the content 202 * form src to the newly created EC_KEY object 203 * \param src source EC_GROUP object 204 * \return newly created EC_GROUP object or NULL in case of an error. 205 */ 206 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); 207 208 /** Sets the generator and its order/cofactor of a EC_GROUP object. 209 * \param group EC_GROUP object 210 * \param generator EC_POINT object with the generator. 211 * \param order the order of the group generated by the generator. 212 * \param cofactor the index of the sub-group generated by the generator 213 * in the group of all points on the elliptic curve. 214 * \return 1 on success and 0 if an error occurred 215 */ 216 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, 217 const BIGNUM *order, const BIGNUM *cofactor); 218 219 /** Returns the generator of a EC_GROUP object. 220 * \param group EC_GROUP object 221 * \return the currently used generator (possibly NULL). 222 */ 223 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); 224 225 /** Returns the montgomery data for order(Generator) 226 * \param group EC_GROUP object 227 * \return the currently used montgomery data (possibly NULL). 228 */ 229 BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group); 230 231 /** Gets the order of a EC_GROUP 232 * \param group EC_GROUP object 233 * \param order BIGNUM to which the order is copied 234 * \param ctx unused 235 * \return 1 on success and 0 if an error occurred 236 */ 237 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); 238 239 /** Gets the order of an EC_GROUP 240 * \param group EC_GROUP object 241 * \return the group order 242 */ 243 const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); 244 245 /** Gets the number of bits of the order of an EC_GROUP 246 * \param group EC_GROUP object 247 * \return number of bits of group order. 248 */ 249 int EC_GROUP_order_bits(const EC_GROUP *group); 250 251 /** Gets the cofactor of a EC_GROUP 252 * \param group EC_GROUP object 253 * \param cofactor BIGNUM to which the cofactor is copied 254 * \param ctx unused 255 * \return 1 on success and 0 if an error occurred 256 */ 257 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, 258 BN_CTX *ctx); 259 260 /** Gets the cofactor of an EC_GROUP 261 * \param group EC_GROUP object 262 * \return the group cofactor 263 */ 264 const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group); 265 266 /** Sets the name of a EC_GROUP object 267 * \param group EC_GROUP object 268 * \param nid NID of the curve name OID 269 */ 270 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); 271 272 /** Returns the curve name of a EC_GROUP object 273 * \param group EC_GROUP object 274 * \return NID of the curve name OID or 0 if not set. 275 */ 276 int EC_GROUP_get_curve_name(const EC_GROUP *group); 277 278 /** Gets the field of an EC_GROUP 279 * \param group EC_GROUP object 280 * \return the group field 281 */ 282 const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group); 283 284 /** Returns the field type of the EC_GROUP. 285 * \param group EC_GROUP object 286 * \return NID of the underlying field type OID. 287 */ 288 int EC_GROUP_get_field_type(const EC_GROUP *group); 289 290 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); 291 int EC_GROUP_get_asn1_flag(const EC_GROUP *group); 292 293 void EC_GROUP_set_point_conversion_form(EC_GROUP *group, 294 point_conversion_form_t form); 295 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); 296 297 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x); 298 size_t EC_GROUP_get_seed_len(const EC_GROUP *); 299 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); 300 301 /** Sets the parameters of an ec curve defined by y^2 = x^3 + a*x + b (for GFp) 302 * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m) 303 * \param group EC_GROUP object 304 * \param p BIGNUM with the prime number (GFp) or the polynomial 305 * defining the underlying field (GF2m) 306 * \param a BIGNUM with parameter a of the equation 307 * \param b BIGNUM with parameter b of the equation 308 * \param ctx BN_CTX object (optional) 309 * \return 1 on success and 0 if an error occurred 310 */ 311 int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, 312 const BIGNUM *b, BN_CTX *ctx); 313 314 /** Gets the parameters of the ec curve defined by y^2 = x^3 + a*x + b (for GFp) 315 * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m) 316 * \param group EC_GROUP object 317 * \param p BIGNUM with the prime number (GFp) or the polynomial 318 * defining the underlying field (GF2m) 319 * \param a BIGNUM for parameter a of the equation 320 * \param b BIGNUM for parameter b of the equation 321 * \param ctx BN_CTX object (optional) 322 * \return 1 on success and 0 if an error occurred 323 */ 324 int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, 325 BN_CTX *ctx); 326 327 # ifndef OPENSSL_NO_DEPRECATED_3_0 328 /** Sets the parameters of an ec curve. Synonym for EC_GROUP_set_curve 329 * \param group EC_GROUP object 330 * \param p BIGNUM with the prime number (GFp) or the polynomial 331 * defining the underlying field (GF2m) 332 * \param a BIGNUM with parameter a of the equation 333 * \param b BIGNUM with parameter b of the equation 334 * \param ctx BN_CTX object (optional) 335 * \return 1 on success and 0 if an error occurred 336 */ 337 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GFp(EC_GROUP *group, 338 const BIGNUM *p, 339 const BIGNUM *a, 340 const BIGNUM *b, 341 BN_CTX *ctx); 342 343 /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve 344 * \param group EC_GROUP object 345 * \param p BIGNUM with the prime number (GFp) or the polynomial 346 * defining the underlying field (GF2m) 347 * \param a BIGNUM for parameter a of the equation 348 * \param b BIGNUM for parameter b of the equation 349 * \param ctx BN_CTX object (optional) 350 * \return 1 on success and 0 if an error occurred 351 */ 352 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, 353 BIGNUM *p, 354 BIGNUM *a, BIGNUM *b, 355 BN_CTX *ctx); 356 357 # ifndef OPENSSL_NO_EC2M 358 /** Sets the parameter of an ec curve. Synonym for EC_GROUP_set_curve 359 * \param group EC_GROUP object 360 * \param p BIGNUM with the prime number (GFp) or the polynomial 361 * defining the underlying field (GF2m) 362 * \param a BIGNUM with parameter a of the equation 363 * \param b BIGNUM with parameter b of the equation 364 * \param ctx BN_CTX object (optional) 365 * \return 1 on success and 0 if an error occurred 366 */ 367 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, 368 const BIGNUM *p, 369 const BIGNUM *a, 370 const BIGNUM *b, 371 BN_CTX *ctx); 372 373 /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve 374 * \param group EC_GROUP object 375 * \param p BIGNUM with the prime number (GFp) or the polynomial 376 * defining the underlying field (GF2m) 377 * \param a BIGNUM for parameter a of the equation 378 * \param b BIGNUM for parameter b of the equation 379 * \param ctx BN_CTX object (optional) 380 * \return 1 on success and 0 if an error occurred 381 */ 382 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, 383 BIGNUM *p, 384 BIGNUM *a, BIGNUM *b, 385 BN_CTX *ctx); 386 # endif /* OPENSSL_NO_EC2M */ 387 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 388 389 /** Returns the number of bits needed to represent a field element 390 * \param group EC_GROUP object 391 * \return number of bits needed to represent a field element 392 */ 393 int EC_GROUP_get_degree(const EC_GROUP *group); 394 395 /** Checks whether the parameter in the EC_GROUP define a valid ec group 396 * \param group EC_GROUP object 397 * \param ctx BN_CTX object (optional) 398 * \return 1 if group is a valid ec group and 0 otherwise 399 */ 400 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); 401 402 /** Checks whether the discriminant of the elliptic curve is zero or not 403 * \param group EC_GROUP object 404 * \param ctx BN_CTX object (optional) 405 * \return 1 if the discriminant is not zero and 0 otherwise 406 */ 407 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); 408 409 /** Compares two EC_GROUP objects 410 * \param a first EC_GROUP object 411 * \param b second EC_GROUP object 412 * \param ctx BN_CTX object (optional) 413 * \return 0 if the groups are equal, 1 if not, or -1 on error 414 */ 415 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); 416 417 /* 418 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after 419 * choosing an appropriate EC_METHOD 420 */ 421 422 /** Creates a new EC_GROUP object with the specified parameters defined 423 * over GFp (defined by the equation y^2 = x^3 + a*x + b) 424 * \param p BIGNUM with the prime number 425 * \param a BIGNUM with the parameter a of the equation 426 * \param b BIGNUM with the parameter b of the equation 427 * \param ctx BN_CTX object (optional) 428 * \return newly created EC_GROUP object with the specified parameters 429 */ 430 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, 431 const BIGNUM *b, BN_CTX *ctx); 432 # ifndef OPENSSL_NO_EC2M 433 /** Creates a new EC_GROUP object with the specified parameters defined 434 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) 435 * \param p BIGNUM with the polynomial defining the underlying field 436 * \param a BIGNUM with the parameter a of the equation 437 * \param b BIGNUM with the parameter b of the equation 438 * \param ctx BN_CTX object (optional) 439 * \return newly created EC_GROUP object with the specified parameters 440 */ 441 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, 442 const BIGNUM *b, BN_CTX *ctx); 443 # endif 444 445 /** 446 * Creates a EC_GROUP object with a curve specified by parameters. 447 * The parameters may be explicit or a named curve, 448 * \param params A list of parameters describing the group. 449 * \param libctx The associated library context or NULL for the default 450 * context 451 * \param propq A property query string 452 * \return newly created EC_GROUP object with specified parameters or NULL 453 * if an error occurred 454 */ 455 EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[], 456 OSSL_LIB_CTX *libctx, const char *propq); 457 458 /** 459 * Creates a EC_GROUP object with a curve specified by a NID 460 * \param libctx The associated library context or NULL for the default 461 * context 462 * \param propq A property query string 463 * \param nid NID of the OID of the curve name 464 * \return newly created EC_GROUP object with specified curve or NULL 465 * if an error occurred 466 */ 467 EC_GROUP *EC_GROUP_new_by_curve_name_ex(OSSL_LIB_CTX *libctx, const char *propq, 468 int nid); 469 470 /** 471 * Creates a EC_GROUP object with a curve specified by a NID. Same as 472 * EC_GROUP_new_by_curve_name_ex but the libctx and propq are always 473 * NULL. 474 * \param nid NID of the OID of the curve name 475 * \return newly created EC_GROUP object with specified curve or NULL 476 * if an error occurred 477 */ 478 EC_GROUP *EC_GROUP_new_by_curve_name(int nid); 479 480 /** Creates a new EC_GROUP object from an ECPARAMETERS object 481 * \param params pointer to the ECPARAMETERS object 482 * \return newly created EC_GROUP object with specified curve or NULL 483 * if an error occurred 484 */ 485 EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params); 486 487 /** Creates an ECPARAMETERS object for the given EC_GROUP object. 488 * \param group pointer to the EC_GROUP object 489 * \param params pointer to an existing ECPARAMETERS object or NULL 490 * \return pointer to the new ECPARAMETERS object or NULL 491 * if an error occurred. 492 */ 493 ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group, 494 ECPARAMETERS *params); 495 496 /** Creates a new EC_GROUP object from an ECPKPARAMETERS object 497 * \param params pointer to an existing ECPKPARAMETERS object, or NULL 498 * \return newly created EC_GROUP object with specified curve, or NULL 499 * if an error occurred 500 */ 501 EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params); 502 503 /** Creates an ECPKPARAMETERS object for the given EC_GROUP object. 504 * \param group pointer to the EC_GROUP object 505 * \param params pointer to an existing ECPKPARAMETERS object or NULL 506 * \return pointer to the new ECPKPARAMETERS object or NULL 507 * if an error occurred. 508 */ 509 ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, 510 ECPKPARAMETERS *params); 511 512 /********************************************************************/ 513 /* handling of internal curves */ 514 /********************************************************************/ 515 516 typedef struct { 517 int nid; 518 const char *comment; 519 } EC_builtin_curve; 520 521 /* 522 * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all 523 * available curves or zero if a error occurred. In case r is not zero, 524 * nitems EC_builtin_curve structures are filled with the data of the first 525 * nitems internal groups 526 */ 527 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); 528 529 const char *EC_curve_nid2nist(int nid); 530 int EC_curve_nist2nid(const char *name); 531 int EC_GROUP_check_named_curve(const EC_GROUP *group, int nist_only, 532 BN_CTX *ctx); 533 534 /********************************************************************/ 535 /* EC_POINT functions */ 536 /********************************************************************/ 537 538 /** Creates a new EC_POINT object for the specified EC_GROUP 539 * \param group EC_GROUP the underlying EC_GROUP object 540 * \return newly created EC_POINT object or NULL if an error occurred 541 */ 542 EC_POINT *EC_POINT_new(const EC_GROUP *group); 543 544 /** Frees a EC_POINT object 545 * \param point EC_POINT object to be freed 546 */ 547 void EC_POINT_free(EC_POINT *point); 548 549 /** Clears and frees a EC_POINT object 550 * \param point EC_POINT object to be cleared and freed 551 */ 552 void EC_POINT_clear_free(EC_POINT *point); 553 554 /** Copies EC_POINT object 555 * \param dst destination EC_POINT object 556 * \param src source EC_POINT object 557 * \return 1 on success and 0 if an error occurred 558 */ 559 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); 560 561 /** Creates a new EC_POINT object and copies the content of the supplied 562 * EC_POINT 563 * \param src source EC_POINT object 564 * \param group underlying the EC_GROUP object 565 * \return newly created EC_POINT object or NULL if an error occurred 566 */ 567 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); 568 569 /** Sets a point to infinity (neutral element) 570 * \param group underlying EC_GROUP object 571 * \param point EC_POINT to set to infinity 572 * \return 1 on success and 0 if an error occurred 573 */ 574 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); 575 576 # ifndef OPENSSL_NO_DEPRECATED_3_0 577 /** Returns the EC_METHOD used in EC_POINT object 578 * \param point EC_POINT object 579 * \return the EC_METHOD used 580 */ 581 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); 582 583 /** Sets the jacobian projective coordinates of a EC_POINT over GFp 584 * \param group underlying EC_GROUP object 585 * \param p EC_POINT object 586 * \param x BIGNUM with the x-coordinate 587 * \param y BIGNUM with the y-coordinate 588 * \param z BIGNUM with the z-coordinate 589 * \param ctx BN_CTX object (optional) 590 * \return 1 on success and 0 if an error occurred 591 */ 592 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_Jprojective_coordinates_GFp 593 (const EC_GROUP *group, EC_POINT *p, 594 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, 595 BN_CTX *ctx); 596 597 /** Gets the jacobian projective coordinates of a EC_POINT over GFp 598 * \param group underlying EC_GROUP object 599 * \param p EC_POINT object 600 * \param x BIGNUM for the x-coordinate 601 * \param y BIGNUM for the y-coordinate 602 * \param z BIGNUM for the z-coordinate 603 * \param ctx BN_CTX object (optional) 604 * \return 1 on success and 0 if an error occurred 605 */ 606 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_Jprojective_coordinates_GFp 607 (const EC_GROUP *group, const EC_POINT *p, 608 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); 609 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 610 611 /** Sets the affine coordinates of an EC_POINT 612 * \param group underlying EC_GROUP object 613 * \param p EC_POINT object 614 * \param x BIGNUM with the x-coordinate 615 * \param y BIGNUM with the y-coordinate 616 * \param ctx BN_CTX object (optional) 617 * \return 1 on success and 0 if an error occurred 618 */ 619 int EC_POINT_set_affine_coordinates(const EC_GROUP *group, EC_POINT *p, 620 const BIGNUM *x, const BIGNUM *y, 621 BN_CTX *ctx); 622 623 /** Gets the affine coordinates of an EC_POINT. 624 * \param group underlying EC_GROUP object 625 * \param p EC_POINT object 626 * \param x BIGNUM for the x-coordinate 627 * \param y BIGNUM for the y-coordinate 628 * \param ctx BN_CTX object (optional) 629 * \return 1 on success and 0 if an error occurred 630 */ 631 int EC_POINT_get_affine_coordinates(const EC_GROUP *group, const EC_POINT *p, 632 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 633 634 # ifndef OPENSSL_NO_DEPRECATED_3_0 635 /** Sets the affine coordinates of an EC_POINT. A synonym of 636 * EC_POINT_set_affine_coordinates 637 * \param group underlying EC_GROUP object 638 * \param p EC_POINT object 639 * \param x BIGNUM with the x-coordinate 640 * \param y BIGNUM with the y-coordinate 641 * \param ctx BN_CTX object (optional) 642 * \return 1 on success and 0 if an error occurred 643 */ 644 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GFp 645 (const EC_GROUP *group, EC_POINT *p, 646 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 647 648 /** Gets the affine coordinates of an EC_POINT. A synonym of 649 * EC_POINT_get_affine_coordinates 650 * \param group underlying EC_GROUP object 651 * \param p EC_POINT object 652 * \param x BIGNUM for the x-coordinate 653 * \param y BIGNUM for the y-coordinate 654 * \param ctx BN_CTX object (optional) 655 * \return 1 on success and 0 if an error occurred 656 */ 657 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GFp 658 (const EC_GROUP *group, const EC_POINT *p, 659 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 660 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 661 662 /** Sets the x9.62 compressed coordinates of a EC_POINT 663 * \param group underlying EC_GROUP object 664 * \param p EC_POINT object 665 * \param x BIGNUM with x-coordinate 666 * \param y_bit integer with the y-Bit (either 0 or 1) 667 * \param ctx BN_CTX object (optional) 668 * \return 1 on success and 0 if an error occurred 669 */ 670 int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *p, 671 const BIGNUM *x, int y_bit, 672 BN_CTX *ctx); 673 674 # ifndef OPENSSL_NO_DEPRECATED_3_0 675 /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of 676 * EC_POINT_set_compressed_coordinates 677 * \param group underlying EC_GROUP object 678 * \param p EC_POINT object 679 * \param x BIGNUM with x-coordinate 680 * \param y_bit integer with the y-Bit (either 0 or 1) 681 * \param ctx BN_CTX object (optional) 682 * \return 1 on success and 0 if an error occurred 683 */ 684 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GFp 685 (const EC_GROUP *group, EC_POINT *p, 686 const BIGNUM *x, int y_bit, BN_CTX *ctx); 687 # ifndef OPENSSL_NO_EC2M 688 /** Sets the affine coordinates of an EC_POINT. A synonym of 689 * EC_POINT_set_affine_coordinates 690 * \param group underlying EC_GROUP object 691 * \param p EC_POINT object 692 * \param x BIGNUM with the x-coordinate 693 * \param y BIGNUM with the y-coordinate 694 * \param ctx BN_CTX object (optional) 695 * \return 1 on success and 0 if an error occurred 696 */ 697 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GF2m 698 (const EC_GROUP *group, EC_POINT *p, 699 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 700 701 /** Gets the affine coordinates of an EC_POINT. A synonym of 702 * EC_POINT_get_affine_coordinates 703 * \param group underlying EC_GROUP object 704 * \param p EC_POINT object 705 * \param x BIGNUM for the x-coordinate 706 * \param y BIGNUM for the y-coordinate 707 * \param ctx BN_CTX object (optional) 708 * \return 1 on success and 0 if an error occurred 709 */ 710 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GF2m 711 (const EC_GROUP *group, const EC_POINT *p, 712 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 713 714 /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of 715 * EC_POINT_set_compressed_coordinates 716 * \param group underlying EC_GROUP object 717 * \param p EC_POINT object 718 * \param x BIGNUM with x-coordinate 719 * \param y_bit integer with the y-Bit (either 0 or 1) 720 * \param ctx BN_CTX object (optional) 721 * \return 1 on success and 0 if an error occurred 722 */ 723 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GF2m 724 (const EC_GROUP *group, EC_POINT *p, 725 const BIGNUM *x, int y_bit, BN_CTX *ctx); 726 # endif 727 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 728 729 /** Encodes a EC_POINT object to a octet string 730 * \param group underlying EC_GROUP object 731 * \param p EC_POINT object 732 * \param form point conversion form 733 * \param buf memory buffer for the result. If NULL the function returns 734 * required buffer size. 735 * \param len length of the memory buffer 736 * \param ctx BN_CTX object (optional) 737 * \return the length of the encoded octet string or 0 if an error occurred 738 */ 739 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, 740 point_conversion_form_t form, 741 unsigned char *buf, size_t len, BN_CTX *ctx); 742 743 /** Decodes a EC_POINT from a octet string 744 * \param group underlying EC_GROUP object 745 * \param p EC_POINT object 746 * \param buf memory buffer with the encoded ec point 747 * \param len length of the encoded ec point 748 * \param ctx BN_CTX object (optional) 749 * \return 1 on success and 0 if an error occurred 750 */ 751 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, 752 const unsigned char *buf, size_t len, BN_CTX *ctx); 753 754 /** Encodes an EC_POINT object to an allocated octet string 755 * \param group underlying EC_GROUP object 756 * \param point EC_POINT object 757 * \param form point conversion form 758 * \param pbuf returns pointer to allocated buffer 759 * \param ctx BN_CTX object (optional) 760 * \return the length of the encoded octet string or 0 if an error occurred 761 */ 762 size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point, 763 point_conversion_form_t form, 764 unsigned char **pbuf, BN_CTX *ctx); 765 766 /* other interfaces to point2oct/oct2point: */ 767 # ifndef OPENSSL_NO_DEPRECATED_3_0 768 OSSL_DEPRECATEDIN_3_0 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, 769 const EC_POINT *, 770 point_conversion_form_t form, 771 BIGNUM *, BN_CTX *); 772 OSSL_DEPRECATEDIN_3_0 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, 773 const BIGNUM *, 774 EC_POINT *, BN_CTX *); 775 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 776 777 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, 778 point_conversion_form_t form, BN_CTX *); 779 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, 780 EC_POINT *, BN_CTX *); 781 782 /********************************************************************/ 783 /* functions for doing EC_POINT arithmetic */ 784 /********************************************************************/ 785 786 /** Computes the sum of two EC_POINT 787 * \param group underlying EC_GROUP object 788 * \param r EC_POINT object for the result (r = a + b) 789 * \param a EC_POINT object with the first summand 790 * \param b EC_POINT object with the second summand 791 * \param ctx BN_CTX object (optional) 792 * \return 1 on success and 0 if an error occurred 793 */ 794 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, 795 const EC_POINT *b, BN_CTX *ctx); 796 797 /** Computes the double of a EC_POINT 798 * \param group underlying EC_GROUP object 799 * \param r EC_POINT object for the result (r = 2 * a) 800 * \param a EC_POINT object 801 * \param ctx BN_CTX object (optional) 802 * \return 1 on success and 0 if an error occurred 803 */ 804 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, 805 BN_CTX *ctx); 806 807 /** Computes the inverse of a EC_POINT 808 * \param group underlying EC_GROUP object 809 * \param a EC_POINT object to be inverted (it's used for the result as well) 810 * \param ctx BN_CTX object (optional) 811 * \return 1 on success and 0 if an error occurred 812 */ 813 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); 814 815 /** Checks whether the point is the neutral element of the group 816 * \param group the underlying EC_GROUP object 817 * \param p EC_POINT object 818 * \return 1 if the point is the neutral element and 0 otherwise 819 */ 820 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); 821 822 /** Checks whether the point is on the curve 823 * \param group underlying EC_GROUP object 824 * \param point EC_POINT object to check 825 * \param ctx BN_CTX object (optional) 826 * \return 1 if the point is on the curve, 0 if not, or -1 on error 827 */ 828 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, 829 BN_CTX *ctx); 830 831 /** Compares two EC_POINTs 832 * \param group underlying EC_GROUP object 833 * \param a first EC_POINT object 834 * \param b second EC_POINT object 835 * \param ctx BN_CTX object (optional) 836 * \return 1 if the points are not equal, 0 if they are, or -1 on error 837 */ 838 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, 839 BN_CTX *ctx); 840 841 # ifndef OPENSSL_NO_DEPRECATED_3_0 842 OSSL_DEPRECATEDIN_3_0 int EC_POINT_make_affine(const EC_GROUP *group, 843 EC_POINT *point, BN_CTX *ctx); 844 OSSL_DEPRECATEDIN_3_0 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, 845 EC_POINT *points[], BN_CTX *ctx); 846 847 /** Computes r = generator * n + sum_{i=0}^{num-1} p[i] * m[i] 848 * \param group underlying EC_GROUP object 849 * \param r EC_POINT object for the result 850 * \param n BIGNUM with the multiplier for the group generator (optional) 851 * \param num number further summands 852 * \param p array of size num of EC_POINT objects 853 * \param m array of size num of BIGNUM objects 854 * \param ctx BN_CTX object (optional) 855 * \return 1 on success and 0 if an error occurred 856 */ 857 OSSL_DEPRECATEDIN_3_0 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, 858 const BIGNUM *n, size_t num, 859 const EC_POINT *p[], const BIGNUM *m[], 860 BN_CTX *ctx); 861 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 862 863 /** Computes r = generator * n + q * m 864 * \param group underlying EC_GROUP object 865 * \param r EC_POINT object for the result 866 * \param n BIGNUM with the multiplier for the group generator (optional) 867 * \param q EC_POINT object with the first factor of the second summand 868 * \param m BIGNUM with the second factor of the second summand 869 * \param ctx BN_CTX object (optional) 870 * \return 1 on success and 0 if an error occurred 871 */ 872 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, 873 const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); 874 875 # ifndef OPENSSL_NO_DEPRECATED_3_0 876 /** Stores multiples of generator for faster point multiplication 877 * \param group EC_GROUP object 878 * \param ctx BN_CTX object (optional) 879 * \return 1 on success and 0 if an error occurred 880 */ 881 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); 882 883 /** Reports whether a precomputation has been done 884 * \param group EC_GROUP object 885 * \return 1 if a pre-computation has been done and 0 otherwise 886 */ 887 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_have_precompute_mult(const EC_GROUP *group); 888 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 889 890 /********************************************************************/ 891 /* ASN1 stuff */ 892 /********************************************************************/ 893 894 DECLARE_ASN1_ITEM(ECPKPARAMETERS) 895 DECLARE_ASN1_ALLOC_FUNCTIONS(ECPKPARAMETERS) 896 DECLARE_ASN1_ITEM(ECPARAMETERS) 897 DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) 898 899 /* 900 * EC_GROUP_get_basis_type() returns the NID of the basis type used to 901 * represent the field elements 902 */ 903 int EC_GROUP_get_basis_type(const EC_GROUP *); 904 # ifndef OPENSSL_NO_EC2M 905 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); 906 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, 907 unsigned int *k2, unsigned int *k3); 908 # endif 909 910 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); 911 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); 912 913 # define d2i_ECPKParameters_bio(bp,x) \ 914 ASN1_d2i_bio_of(EC_GROUP, NULL, d2i_ECPKParameters, bp, x) 915 # define i2d_ECPKParameters_bio(bp,x) \ 916 ASN1_i2d_bio_of(EC_GROUP, i2d_ECPKParameters, bp, x) 917 # define d2i_ECPKParameters_fp(fp,x) \ 918 (EC_GROUP *)ASN1_d2i_fp(NULL, (d2i_of_void *)d2i_ECPKParameters, (fp), \ 919 (void **)(x)) 920 # define i2d_ECPKParameters_fp(fp,x) \ 921 ASN1_i2d_fp((i2d_of_void *)i2d_ECPKParameters, (fp), (void *)(x)) 922 923 # ifndef OPENSSL_NO_DEPRECATED_3_0 924 OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, 925 int off); 926 # ifndef OPENSSL_NO_STDIO 927 OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, 928 int off); 929 # endif 930 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 931 932 /********************************************************************/ 933 /* EC_KEY functions */ 934 /********************************************************************/ 935 936 /* some values for the encoding_flag */ 937 # define EC_PKEY_NO_PARAMETERS 0x001 938 # define EC_PKEY_NO_PUBKEY 0x002 939 940 /* some values for the flags field */ 941 # define EC_FLAG_SM2_RANGE 0x0004 942 # define EC_FLAG_COFACTOR_ECDH 0x1000 943 # define EC_FLAG_CHECK_NAMED_GROUP 0x2000 944 # define EC_FLAG_CHECK_NAMED_GROUP_NIST 0x4000 945 # define EC_FLAG_CHECK_NAMED_GROUP_MASK \ 946 (EC_FLAG_CHECK_NAMED_GROUP | EC_FLAG_CHECK_NAMED_GROUP_NIST) 947 948 /* Deprecated flags - it was using 0x01..0x02 */ 949 # define EC_FLAG_NON_FIPS_ALLOW 0x0000 950 # define EC_FLAG_FIPS_CHECKED 0x0000 951 952 # ifndef OPENSSL_NO_DEPRECATED_3_0 953 /** 954 * Creates a new EC_KEY object. 955 * \param ctx The library context for to use for this EC_KEY. May be NULL in 956 * which case the default library context is used. 957 * \return EC_KEY object or NULL if an error occurred. 958 */ 959 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_ex(OSSL_LIB_CTX *ctx, const char *propq); 960 961 /** 962 * Creates a new EC_KEY object. Same as calling EC_KEY_new_ex with a 963 * NULL library context 964 * \return EC_KEY object or NULL if an error occurred. 965 */ 966 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new(void); 967 968 OSSL_DEPRECATEDIN_3_0 int EC_KEY_get_flags(const EC_KEY *key); 969 970 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_flags(EC_KEY *key, int flags); 971 972 OSSL_DEPRECATEDIN_3_0 void EC_KEY_clear_flags(EC_KEY *key, int flags); 973 974 OSSL_DEPRECATEDIN_3_0 int EC_KEY_decoded_from_explicit_params(const EC_KEY *key); 975 976 /** 977 * Creates a new EC_KEY object using a named curve as underlying 978 * EC_GROUP object. 979 * \param ctx The library context for to use for this EC_KEY. May be NULL in 980 * which case the default library context is used. 981 * \param propq Any property query string 982 * \param nid NID of the named curve. 983 * \return EC_KEY object or NULL if an error occurred. 984 */ 985 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name_ex(OSSL_LIB_CTX *ctx, 986 const char *propq, 987 int nid); 988 989 /** 990 * Creates a new EC_KEY object using a named curve as underlying 991 * EC_GROUP object. Same as calling EC_KEY_new_by_curve_name_ex with a NULL 992 * library context and property query string. 993 * \param nid NID of the named curve. 994 * \return EC_KEY object or NULL if an error occurred. 995 */ 996 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name(int nid); 997 998 /** Frees a EC_KEY object. 999 * \param key EC_KEY object to be freed. 1000 */ 1001 OSSL_DEPRECATEDIN_3_0 void EC_KEY_free(EC_KEY *key); 1002 1003 /** Copies a EC_KEY object. 1004 * \param dst destination EC_KEY object 1005 * \param src src EC_KEY object 1006 * \return dst or NULL if an error occurred. 1007 */ 1008 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); 1009 1010 /** Creates a new EC_KEY object and copies the content from src to it. 1011 * \param src the source EC_KEY object 1012 * \return newly created EC_KEY object or NULL if an error occurred. 1013 */ 1014 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_dup(const EC_KEY *src); 1015 1016 /** Increases the internal reference count of a EC_KEY object. 1017 * \param key EC_KEY object 1018 * \return 1 on success and 0 if an error occurred. 1019 */ 1020 OSSL_DEPRECATEDIN_3_0 int EC_KEY_up_ref(EC_KEY *key); 1021 1022 /** Returns the ENGINE object of a EC_KEY object 1023 * \param eckey EC_KEY object 1024 * \return the ENGINE object (possibly NULL). 1025 */ 1026 OSSL_DEPRECATEDIN_3_0 ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey); 1027 1028 /** Returns the EC_GROUP object of a EC_KEY object 1029 * \param key EC_KEY object 1030 * \return the EC_GROUP object (possibly NULL). 1031 */ 1032 OSSL_DEPRECATEDIN_3_0 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); 1033 1034 /** Sets the EC_GROUP of a EC_KEY object. 1035 * \param key EC_KEY object 1036 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY 1037 * object will use an own copy of the EC_GROUP). 1038 * \return 1 on success and 0 if an error occurred. 1039 */ 1040 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); 1041 1042 /** Returns the private key of a EC_KEY object. 1043 * \param key EC_KEY object 1044 * \return a BIGNUM with the private key (possibly NULL). 1045 */ 1046 OSSL_DEPRECATEDIN_3_0 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); 1047 1048 /** Sets the private key of a EC_KEY object. 1049 * \param key EC_KEY object 1050 * \param prv BIGNUM with the private key (note: the EC_KEY object 1051 * will use an own copy of the BIGNUM). 1052 * \return 1 on success and 0 if an error occurred. 1053 */ 1054 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); 1055 1056 /** Returns the public key of a EC_KEY object. 1057 * \param key the EC_KEY object 1058 * \return a EC_POINT object with the public key (possibly NULL) 1059 */ 1060 OSSL_DEPRECATEDIN_3_0 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); 1061 1062 /** Sets the public key of a EC_KEY object. 1063 * \param key EC_KEY object 1064 * \param pub EC_POINT object with the public key (note: the EC_KEY object 1065 * will use an own copy of the EC_POINT object). 1066 * \return 1 on success and 0 if an error occurred. 1067 */ 1068 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); 1069 1070 OSSL_DEPRECATEDIN_3_0 unsigned EC_KEY_get_enc_flags(const EC_KEY *key); 1071 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); 1072 OSSL_DEPRECATEDIN_3_0 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); 1073 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_conv_form(EC_KEY *eckey, 1074 point_conversion_form_t cform); 1075 # endif /*OPENSSL_NO_DEPRECATED_3_0 */ 1076 1077 # define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \ 1078 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef) 1079 1080 # ifndef OPENSSL_NO_DEPRECATED_3_0 1081 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg); 1082 OSSL_DEPRECATEDIN_3_0 void *EC_KEY_get_ex_data(const EC_KEY *key, int idx); 1083 1084 /* wrapper functions for the underlying EC_GROUP object */ 1085 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); 1086 1087 /** Creates a table of pre-computed multiples of the generator to 1088 * accelerate further EC_KEY operations. 1089 * \param key EC_KEY object 1090 * \param ctx BN_CTX object (optional) 1091 * \return 1 on success and 0 if an error occurred. 1092 */ 1093 OSSL_DEPRECATEDIN_3_0 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); 1094 1095 /** Creates a new ec private (and optional a new public) key. 1096 * \param key EC_KEY object 1097 * \return 1 on success and 0 if an error occurred. 1098 */ 1099 OSSL_DEPRECATEDIN_3_0 int EC_KEY_generate_key(EC_KEY *key); 1100 1101 /** Verifies that a private and/or public key is valid. 1102 * \param key the EC_KEY object 1103 * \return 1 on success and 0 otherwise. 1104 */ 1105 OSSL_DEPRECATEDIN_3_0 int EC_KEY_check_key(const EC_KEY *key); 1106 1107 /** Indicates if an EC_KEY can be used for signing. 1108 * \param eckey the EC_KEY object 1109 * \return 1 if can can sign and 0 otherwise. 1110 */ 1111 OSSL_DEPRECATEDIN_3_0 int EC_KEY_can_sign(const EC_KEY *eckey); 1112 1113 /** Sets a public key from affine coordinates performing 1114 * necessary NIST PKV tests. 1115 * \param key the EC_KEY object 1116 * \param x public key x coordinate 1117 * \param y public key y coordinate 1118 * \return 1 on success and 0 otherwise. 1119 */ 1120 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, 1121 BIGNUM *x, 1122 BIGNUM *y); 1123 1124 /** Encodes an EC_KEY public key to an allocated octet string 1125 * \param key key to encode 1126 * \param form point conversion form 1127 * \param pbuf returns pointer to allocated buffer 1128 * \param ctx BN_CTX object (optional) 1129 * \return the length of the encoded octet string or 0 if an error occurred 1130 */ 1131 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_key2buf(const EC_KEY *key, 1132 point_conversion_form_t form, 1133 unsigned char **pbuf, BN_CTX *ctx); 1134 1135 /** Decodes a EC_KEY public key from a octet string 1136 * \param key key to decode 1137 * \param buf memory buffer with the encoded ec point 1138 * \param len length of the encoded ec point 1139 * \param ctx BN_CTX object (optional) 1140 * \return 1 on success and 0 if an error occurred 1141 */ 1142 1143 OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, 1144 size_t len, BN_CTX *ctx); 1145 1146 /** Decodes an EC_KEY private key from an octet string 1147 * \param key key to decode 1148 * \param buf memory buffer with the encoded private key 1149 * \param len length of the encoded key 1150 * \return 1 on success and 0 if an error occurred 1151 */ 1152 1153 OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2priv(EC_KEY *key, const unsigned char *buf, 1154 size_t len); 1155 1156 /** Encodes a EC_KEY private key to an octet string 1157 * \param key key to encode 1158 * \param buf memory buffer for the result. If NULL the function returns 1159 * required buffer size. 1160 * \param len length of the memory buffer 1161 * \return the length of the encoded octet string or 0 if an error occurred 1162 */ 1163 1164 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2oct(const EC_KEY *key, 1165 unsigned char *buf, size_t len); 1166 1167 /** Encodes an EC_KEY private key to an allocated octet string 1168 * \param eckey key to encode 1169 * \param pbuf returns pointer to allocated buffer 1170 * \return the length of the encoded octet string or 0 if an error occurred 1171 */ 1172 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2buf(const EC_KEY *eckey, 1173 unsigned char **pbuf); 1174 1175 /********************************************************************/ 1176 /* de- and encoding functions for SEC1 ECPrivateKey */ 1177 /********************************************************************/ 1178 1179 /** Decodes a private key from a memory buffer. 1180 * \param key a pointer to a EC_KEY object which should be used (or NULL) 1181 * \param in pointer to memory with the DER encoded private key 1182 * \param len length of the DER encoded private key 1183 * \return the decoded private key or NULL if an error occurred. 1184 */ 1185 OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, 1186 const unsigned char **in, 1187 long len); 1188 1189 /** Encodes a private key object and stores the result in a buffer. 1190 * \param key the EC_KEY object to encode 1191 * \param out the buffer for the result (if NULL the function returns number 1192 * of bytes needed). 1193 * \return 1 on success and 0 if an error occurred. 1194 */ 1195 OSSL_DEPRECATEDIN_3_0 int i2d_ECPrivateKey(const EC_KEY *key, 1196 unsigned char **out); 1197 1198 /********************************************************************/ 1199 /* de- and encoding functions for EC parameters */ 1200 /********************************************************************/ 1201 1202 /** Decodes ec parameter from a memory buffer. 1203 * \param key a pointer to a EC_KEY object which should be used (or NULL) 1204 * \param in pointer to memory with the DER encoded ec parameters 1205 * \param len length of the DER encoded ec parameters 1206 * \return a EC_KEY object with the decoded parameters or NULL if an error 1207 * occurred. 1208 */ 1209 OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECParameters(EC_KEY **key, 1210 const unsigned char **in, 1211 long len); 1212 1213 /** Encodes ec parameter and stores the result in a buffer. 1214 * \param key the EC_KEY object with ec parameters to encode 1215 * \param out the buffer for the result (if NULL the function returns number 1216 * of bytes needed). 1217 * \return 1 on success and 0 if an error occurred. 1218 */ 1219 OSSL_DEPRECATEDIN_3_0 int i2d_ECParameters(const EC_KEY *key, 1220 unsigned char **out); 1221 1222 /********************************************************************/ 1223 /* de- and encoding functions for EC public key */ 1224 /* (octet string, not DER -- hence 'o2i' and 'i2o') */ 1225 /********************************************************************/ 1226 1227 /** Decodes an ec public key from a octet string. 1228 * \param key a pointer to a EC_KEY object which should be used 1229 * \param in memory buffer with the encoded public key 1230 * \param len length of the encoded public key 1231 * \return EC_KEY object with decoded public key or NULL if an error 1232 * occurred. 1233 */ 1234 OSSL_DEPRECATEDIN_3_0 EC_KEY *o2i_ECPublicKey(EC_KEY **key, 1235 const unsigned char **in, long len); 1236 1237 /** Encodes an ec public key in an octet string. 1238 * \param key the EC_KEY object with the public key 1239 * \param out the buffer for the result (if NULL the function returns number 1240 * of bytes needed). 1241 * \return 1 on success and 0 if an error occurred 1242 */ 1243 OSSL_DEPRECATEDIN_3_0 int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out); 1244 1245 /** Prints out the ec parameters on human readable form. 1246 * \param bp BIO object to which the information is printed 1247 * \param key EC_KEY object 1248 * \return 1 on success and 0 if an error occurred 1249 */ 1250 OSSL_DEPRECATEDIN_3_0 int ECParameters_print(BIO *bp, const EC_KEY *key); 1251 1252 /** Prints out the contents of a EC_KEY object 1253 * \param bp BIO object to which the information is printed 1254 * \param key EC_KEY object 1255 * \param off line offset 1256 * \return 1 on success and 0 if an error occurred 1257 */ 1258 OSSL_DEPRECATEDIN_3_0 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); 1259 1260 # ifndef OPENSSL_NO_STDIO 1261 /** Prints out the ec parameters on human readable form. 1262 * \param fp file descriptor to which the information is printed 1263 * \param key EC_KEY object 1264 * \return 1 on success and 0 if an error occurred 1265 */ 1266 OSSL_DEPRECATEDIN_3_0 int ECParameters_print_fp(FILE *fp, const EC_KEY *key); 1267 1268 /** Prints out the contents of a EC_KEY object 1269 * \param fp file descriptor to which the information is printed 1270 * \param key EC_KEY object 1271 * \param off line offset 1272 * \return 1 on success and 0 if an error occurred 1273 */ 1274 OSSL_DEPRECATEDIN_3_0 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); 1275 # endif /* OPENSSL_NO_STDIO */ 1276 1277 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_OpenSSL(void); 1278 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_default_method(void); 1279 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_default_method(const EC_KEY_METHOD *meth); 1280 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key); 1281 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth); 1282 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_method(ENGINE *engine); 1283 1284 /** The old name for ecdh_KDF_X9_63 1285 * The ECDH KDF specification has been mistakingly attributed to ANSI X9.62, 1286 * it is actually specified in ANSI X9.63. 1287 * This identifier is retained for backwards compatibility 1288 */ 1289 OSSL_DEPRECATEDIN_3_0 int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, 1290 const unsigned char *Z, size_t Zlen, 1291 const unsigned char *sinfo, 1292 size_t sinfolen, const EVP_MD *md); 1293 1294 OSSL_DEPRECATEDIN_3_0 int ECDH_compute_key(void *out, size_t outlen, 1295 const EC_POINT *pub_key, 1296 const EC_KEY *ecdh, 1297 void *(*KDF)(const void *in, 1298 size_t inlen, void *out, 1299 size_t *outlen)); 1300 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 1301 1302 typedef struct ECDSA_SIG_st ECDSA_SIG; 1303 1304 /** Allocates and initialize a ECDSA_SIG structure 1305 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1306 */ 1307 ECDSA_SIG *ECDSA_SIG_new(void); 1308 1309 /** frees a ECDSA_SIG structure 1310 * \param sig pointer to the ECDSA_SIG structure 1311 */ 1312 void ECDSA_SIG_free(ECDSA_SIG *sig); 1313 1314 /** i2d_ECDSA_SIG encodes content of ECDSA_SIG (note: this function modifies *pp 1315 * (*pp += length of the DER encoded signature)). 1316 * \param sig pointer to the ECDSA_SIG object 1317 * \param pp pointer to a unsigned char pointer for the output or NULL 1318 * \return the length of the DER encoded ECDSA_SIG object or a negative value 1319 * on error 1320 */ 1321 DECLARE_ASN1_ENCODE_FUNCTIONS_only(ECDSA_SIG, ECDSA_SIG) 1322 1323 /** d2i_ECDSA_SIG decodes an ECDSA signature (note: this function modifies *pp 1324 * (*pp += len)). 1325 * \param sig pointer to ECDSA_SIG pointer (may be NULL) 1326 * \param pp memory buffer with the DER encoded signature 1327 * \param len length of the buffer 1328 * \return pointer to the decoded ECDSA_SIG structure (or NULL) 1329 */ 1330 1331 /** Accessor for r and s fields of ECDSA_SIG 1332 * \param sig pointer to ECDSA_SIG structure 1333 * \param pr pointer to BIGNUM pointer for r (may be NULL) 1334 * \param ps pointer to BIGNUM pointer for s (may be NULL) 1335 */ 1336 void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); 1337 1338 /** Accessor for r field of ECDSA_SIG 1339 * \param sig pointer to ECDSA_SIG structure 1340 */ 1341 const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig); 1342 1343 /** Accessor for s field of ECDSA_SIG 1344 * \param sig pointer to ECDSA_SIG structure 1345 */ 1346 const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig); 1347 1348 /** Setter for r and s fields of ECDSA_SIG 1349 * \param sig pointer to ECDSA_SIG structure 1350 * \param r pointer to BIGNUM for r 1351 * \param s pointer to BIGNUM for s 1352 */ 1353 int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s); 1354 1355 # ifndef OPENSSL_NO_DEPRECATED_3_0 1356 /** Computes the ECDSA signature of the given hash value using 1357 * the supplied private key and returns the created signature. 1358 * \param dgst pointer to the hash value 1359 * \param dgst_len length of the hash value 1360 * \param eckey EC_KEY object containing a private EC key 1361 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1362 */ 1363 OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, 1364 int dgst_len, EC_KEY *eckey); 1365 1366 /** Computes ECDSA signature of a given hash value using the supplied 1367 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1368 * \param dgst pointer to the hash value to sign 1369 * \param dgstlen length of the hash value 1370 * \param kinv BIGNUM with a pre-computed inverse k (optional) 1371 * \param rp BIGNUM with a pre-computed rp value (optional), 1372 * see ECDSA_sign_setup 1373 * \param eckey EC_KEY object containing a private EC key 1374 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1375 */ 1376 OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, 1377 int dgstlen, const BIGNUM *kinv, 1378 const BIGNUM *rp, EC_KEY *eckey); 1379 1380 /** Verifies that the supplied signature is a valid ECDSA 1381 * signature of the supplied hash value using the supplied public key. 1382 * \param dgst pointer to the hash value 1383 * \param dgst_len length of the hash value 1384 * \param sig ECDSA_SIG structure 1385 * \param eckey EC_KEY object containing a public EC key 1386 * \return 1 if the signature is valid, 0 if the signature is invalid 1387 * and -1 on error 1388 */ 1389 OSSL_DEPRECATEDIN_3_0 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, 1390 const ECDSA_SIG *sig, EC_KEY *eckey); 1391 1392 /** Precompute parts of the signing operation 1393 * \param eckey EC_KEY object containing a private EC key 1394 * \param ctx BN_CTX object (optional) 1395 * \param kinv BIGNUM pointer for the inverse of k 1396 * \param rp BIGNUM pointer for x coordinate of k * generator 1397 * \return 1 on success and 0 otherwise 1398 */ 1399 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, 1400 BIGNUM **kinv, BIGNUM **rp); 1401 1402 /** Computes ECDSA signature of a given hash value using the supplied 1403 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1404 * \param type this parameter is ignored 1405 * \param dgst pointer to the hash value to sign 1406 * \param dgstlen length of the hash value 1407 * \param sig memory for the DER encoded created signature 1408 * \param siglen pointer to the length of the returned signature 1409 * \param eckey EC_KEY object containing a private EC key 1410 * \return 1 on success and 0 otherwise 1411 */ 1412 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign(int type, const unsigned char *dgst, 1413 int dgstlen, unsigned char *sig, 1414 unsigned int *siglen, EC_KEY *eckey); 1415 1416 /** Computes ECDSA signature of a given hash value using the supplied 1417 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1418 * \param type this parameter is ignored 1419 * \param dgst pointer to the hash value to sign 1420 * \param dgstlen length of the hash value 1421 * \param sig buffer to hold the DER encoded signature 1422 * \param siglen pointer to the length of the returned signature 1423 * \param kinv BIGNUM with a pre-computed inverse k (optional) 1424 * \param rp BIGNUM with a pre-computed rp value (optional), 1425 * see ECDSA_sign_setup 1426 * \param eckey EC_KEY object containing a private EC key 1427 * \return 1 on success and 0 otherwise 1428 */ 1429 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_ex(int type, const unsigned char *dgst, 1430 int dgstlen, unsigned char *sig, 1431 unsigned int *siglen, const BIGNUM *kinv, 1432 const BIGNUM *rp, EC_KEY *eckey); 1433 1434 /** Verifies that the given signature is valid ECDSA signature 1435 * of the supplied hash value using the specified public key. 1436 * \param type this parameter is ignored 1437 * \param dgst pointer to the hash value 1438 * \param dgstlen length of the hash value 1439 * \param sig pointer to the DER encoded signature 1440 * \param siglen length of the DER encoded signature 1441 * \param eckey EC_KEY object containing a public EC key 1442 * \return 1 if the signature is valid, 0 if the signature is invalid 1443 * and -1 on error 1444 */ 1445 OSSL_DEPRECATEDIN_3_0 int ECDSA_verify(int type, const unsigned char *dgst, 1446 int dgstlen, const unsigned char *sig, 1447 int siglen, EC_KEY *eckey); 1448 1449 /** Returns the maximum length of the DER encoded signature 1450 * \param eckey EC_KEY object 1451 * \return numbers of bytes required for the DER encoded signature 1452 */ 1453 OSSL_DEPRECATEDIN_3_0 int ECDSA_size(const EC_KEY *eckey); 1454 1455 /********************************************************************/ 1456 /* EC_KEY_METHOD constructors, destructors, writers and accessors */ 1457 /********************************************************************/ 1458 1459 OSSL_DEPRECATEDIN_3_0 EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth); 1460 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_free(EC_KEY_METHOD *meth); 1461 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_init 1462 (EC_KEY_METHOD *meth, 1463 int (*init)(EC_KEY *key), 1464 void (*finish)(EC_KEY *key), 1465 int (*copy)(EC_KEY *dest, const EC_KEY *src), 1466 int (*set_group)(EC_KEY *key, const EC_GROUP *grp), 1467 int (*set_private)(EC_KEY *key, const BIGNUM *priv_key), 1468 int (*set_public)(EC_KEY *key, const EC_POINT *pub_key)); 1469 1470 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth, 1471 int (*keygen)(EC_KEY *key)); 1472 1473 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_compute_key 1474 (EC_KEY_METHOD *meth, 1475 int (*ckey)(unsigned char **psec, size_t *pseclen, 1476 const EC_POINT *pub_key, const EC_KEY *ecdh)); 1477 1478 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_sign 1479 (EC_KEY_METHOD *meth, 1480 int (*sign)(int type, const unsigned char *dgst, 1481 int dlen, unsigned char *sig, 1482 unsigned int *siglen, 1483 const BIGNUM *kinv, const BIGNUM *r, 1484 EC_KEY *eckey), 1485 int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, 1486 BIGNUM **kinvp, BIGNUM **rp), 1487 ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, 1488 int dgst_len, 1489 const BIGNUM *in_kinv, 1490 const BIGNUM *in_r, 1491 EC_KEY *eckey)); 1492 1493 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_verify 1494 (EC_KEY_METHOD *meth, 1495 int (*verify)(int type, const unsigned 1496 char *dgst, int dgst_len, 1497 const unsigned char *sigbuf, 1498 int sig_len, EC_KEY *eckey), 1499 int (*verify_sig)(const unsigned char *dgst, 1500 int dgst_len, const ECDSA_SIG *sig, 1501 EC_KEY *eckey)); 1502 1503 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_init 1504 (const EC_KEY_METHOD *meth, 1505 int (**pinit)(EC_KEY *key), 1506 void (**pfinish)(EC_KEY *key), 1507 int (**pcopy)(EC_KEY *dest, const EC_KEY *src), 1508 int (**pset_group)(EC_KEY *key, const EC_GROUP *grp), 1509 int (**pset_private)(EC_KEY *key, const BIGNUM *priv_key), 1510 int (**pset_public)(EC_KEY *key, const EC_POINT *pub_key)); 1511 1512 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_keygen 1513 (const EC_KEY_METHOD *meth, int (**pkeygen)(EC_KEY *key)); 1514 1515 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_compute_key 1516 (const EC_KEY_METHOD *meth, 1517 int (**pck)(unsigned char **psec, 1518 size_t *pseclen, 1519 const EC_POINT *pub_key, 1520 const EC_KEY *ecdh)); 1521 1522 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_sign 1523 (const EC_KEY_METHOD *meth, 1524 int (**psign)(int type, const unsigned char *dgst, 1525 int dlen, unsigned char *sig, 1526 unsigned int *siglen, 1527 const BIGNUM *kinv, const BIGNUM *r, 1528 EC_KEY *eckey), 1529 int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, 1530 BIGNUM **kinvp, BIGNUM **rp), 1531 ECDSA_SIG *(**psign_sig)(const unsigned char *dgst, 1532 int dgst_len, 1533 const BIGNUM *in_kinv, 1534 const BIGNUM *in_r, 1535 EC_KEY *eckey)); 1536 1537 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_verify 1538 (const EC_KEY_METHOD *meth, 1539 int (**pverify)(int type, const unsigned 1540 char *dgst, int dgst_len, 1541 const unsigned char *sigbuf, 1542 int sig_len, EC_KEY *eckey), 1543 int (**pverify_sig)(const unsigned char *dgst, 1544 int dgst_len, 1545 const ECDSA_SIG *sig, 1546 EC_KEY *eckey)); 1547 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 1548 1549 # define EVP_EC_gen(curve) \ 1550 EVP_PKEY_Q_keygen(NULL, NULL, "EC", (char *)(strstr(curve, ""))) 1551 # define ECParameters_dup(x) ASN1_dup_of(EC_KEY, i2d_ECParameters, \ 1552 d2i_ECParameters, x) 1553 1554 # ifndef __cplusplus 1555 # if defined(__SUNPRO_C) 1556 # if __SUNPRO_C >= 0x520 1557 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) 1558 # endif 1559 # endif 1560 # endif 1561 1562 # endif 1563 # ifdef __cplusplus 1564 } 1565 # endif 1566 #endif 1567