1 /* 2 * Copyright 2002-2022 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 # include <string.h> 24 25 # ifdef __cplusplus 26 extern "C" { 27 # endif 28 29 /* Values for EVP_PKEY_CTX_set_ec_param_enc() */ 30 # define OPENSSL_EC_EXPLICIT_CURVE 0x000 31 # define OPENSSL_EC_NAMED_CURVE 0x001 32 33 int EVP_PKEY_CTX_set_ec_paramgen_curve_nid(EVP_PKEY_CTX *ctx, int nid); 34 int EVP_PKEY_CTX_set_ec_param_enc(EVP_PKEY_CTX *ctx, int param_enc); 35 int EVP_PKEY_CTX_set_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx, int cofactor_mode); 36 int EVP_PKEY_CTX_get_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx); 37 38 int EVP_PKEY_CTX_set_ecdh_kdf_type(EVP_PKEY_CTX *ctx, int kdf); 39 int EVP_PKEY_CTX_get_ecdh_kdf_type(EVP_PKEY_CTX *ctx); 40 41 int EVP_PKEY_CTX_set_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md); 42 int EVP_PKEY_CTX_get_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD **md); 43 44 int EVP_PKEY_CTX_set_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int len); 45 int EVP_PKEY_CTX_get_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int *len); 46 47 int EVP_PKEY_CTX_set0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char *ukm, 48 int len); 49 # ifndef OPENSSL_NO_DEPRECATED_3_0 50 OSSL_DEPRECATEDIN_3_0 51 int EVP_PKEY_CTX_get0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char **ukm); 52 # endif 53 54 # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) 55 # define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2) 56 # define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3) 57 # define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4) 58 # define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5) 59 # define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6) 60 # define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7) 61 # define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8) 62 # define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9) 63 # define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10) 64 65 /* KDF types */ 66 # define EVP_PKEY_ECDH_KDF_NONE 1 67 # define EVP_PKEY_ECDH_KDF_X9_63 2 68 /* 69 * The old name for EVP_PKEY_ECDH_KDF_X9_63 70 * The ECDH KDF specification has been mistakenly attributed to ANSI X9.62, 71 * it is actually specified in ANSI X9.63. 72 * This identifier is retained for backwards compatibility 73 */ 74 # define EVP_PKEY_ECDH_KDF_X9_62 EVP_PKEY_ECDH_KDF_X9_63 75 76 /** Enum for the point conversion form as defined in X9.62 (ECDSA) 77 * for the encoding of a elliptic curve point (x,y) */ 78 typedef enum { 79 /** the point is encoded as z||x, where the octet z specifies 80 * which solution of the quadratic equation y is */ 81 POINT_CONVERSION_COMPRESSED = 2, 82 /** the point is encoded as z||x||y, where z is the octet 0x04 */ 83 POINT_CONVERSION_UNCOMPRESSED = 4, 84 /** the point is encoded as z||x||y, where the octet z specifies 85 * which solution of the quadratic equation y is */ 86 POINT_CONVERSION_HYBRID = 6 87 } point_conversion_form_t; 88 89 const char *OSSL_EC_curve_nid2name(int nid); 90 91 # ifndef OPENSSL_NO_EC 92 # include <openssl/asn1.h> 93 # include <openssl/symhacks.h> 94 # ifndef OPENSSL_NO_DEPRECATED_1_1_0 95 # include <openssl/bn.h> 96 # endif 97 # include <openssl/ecerr.h> 98 99 # ifndef OPENSSL_ECC_MAX_FIELD_BITS 100 # define OPENSSL_ECC_MAX_FIELD_BITS 661 101 # endif 102 103 # include <openssl/params.h> 104 # ifndef OPENSSL_NO_DEPRECATED_3_0 105 typedef struct ec_method_st EC_METHOD; 106 # endif 107 typedef struct ec_group_st EC_GROUP; 108 typedef struct ec_point_st EC_POINT; 109 typedef struct ecpk_parameters_st ECPKPARAMETERS; 110 typedef struct ec_parameters_st ECPARAMETERS; 111 112 /********************************************************************/ 113 /* EC_METHODs for curves over GF(p) */ 114 /********************************************************************/ 115 116 # ifndef OPENSSL_NO_DEPRECATED_3_0 117 /** Returns the basic GFp ec methods which provides the basis for the 118 * optimized methods. 119 * \return EC_METHOD object 120 */ 121 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_simple_method(void); 122 123 /** Returns GFp methods using montgomery multiplication. 124 * \return EC_METHOD object 125 */ 126 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_mont_method(void); 127 128 /** Returns GFp methods using optimized methods for NIST recommended curves 129 * \return EC_METHOD object 130 */ 131 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nist_method(void); 132 133 # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 134 /** Returns 64-bit optimized methods for nistp224 135 * \return EC_METHOD object 136 */ 137 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp224_method(void); 138 139 /** Returns 64-bit optimized methods for nistp256 140 * \return EC_METHOD object 141 */ 142 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp256_method(void); 143 144 /** Returns 64-bit optimized methods for nistp521 145 * \return EC_METHOD object 146 */ 147 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp521_method(void); 148 # endif /* OPENSSL_NO_EC_NISTP_64_GCC_128 */ 149 150 # ifndef OPENSSL_NO_EC2M 151 /********************************************************************/ 152 /* EC_METHOD for curves over GF(2^m) */ 153 /********************************************************************/ 154 155 /** Returns the basic GF2m ec method 156 * \return EC_METHOD object 157 */ 158 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GF2m_simple_method(void); 159 160 # endif 161 162 /********************************************************************/ 163 /* EC_GROUP functions */ 164 /********************************************************************/ 165 166 /** 167 * Creates a new EC_GROUP object 168 * \param meth EC_METHOD to use 169 * \return newly created EC_GROUP object or NULL in case of an error. 170 */ 171 OSSL_DEPRECATEDIN_3_0 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); 172 173 /** Clears and frees a EC_GROUP object 174 * \param group EC_GROUP object to be cleared and freed. 175 */ 176 OSSL_DEPRECATEDIN_3_0 void EC_GROUP_clear_free(EC_GROUP *group); 177 178 /** Returns the EC_METHOD of the EC_GROUP object. 179 * \param group EC_GROUP object 180 * \return EC_METHOD used in this EC_GROUP object. 181 */ 182 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); 183 184 /** Returns the field type of the EC_METHOD. 185 * \param meth EC_METHOD object 186 * \return NID of the underlying field type OID. 187 */ 188 OSSL_DEPRECATEDIN_3_0 int EC_METHOD_get_field_type(const EC_METHOD *meth); 189 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 190 191 /** Frees a EC_GROUP object 192 * \param group EC_GROUP object to be freed. 193 */ 194 void EC_GROUP_free(EC_GROUP *group); 195 196 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. 197 * \param dst destination EC_GROUP object 198 * \param src source EC_GROUP object 199 * \return 1 on success and 0 if an error occurred. 200 */ 201 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); 202 203 /** Creates a new EC_GROUP object and copies the content 204 * form src to the newly created EC_KEY object 205 * \param src source EC_GROUP object 206 * \return newly created EC_GROUP object or NULL in case of an error. 207 */ 208 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); 209 210 /** Sets the generator and its order/cofactor of a EC_GROUP object. 211 * \param group EC_GROUP object 212 * \param generator EC_POINT object with the generator. 213 * \param order the order of the group generated by the generator. 214 * \param cofactor the index of the sub-group generated by the generator 215 * in the group of all points on the elliptic curve. 216 * \return 1 on success and 0 if an error occurred 217 */ 218 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, 219 const BIGNUM *order, const BIGNUM *cofactor); 220 221 /** Returns the generator of a EC_GROUP object. 222 * \param group EC_GROUP object 223 * \return the currently used generator (possibly NULL). 224 */ 225 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); 226 227 /** Returns the montgomery data for order(Generator) 228 * \param group EC_GROUP object 229 * \return the currently used montgomery data (possibly NULL). 230 */ 231 BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group); 232 233 /** Gets the order of a EC_GROUP 234 * \param group EC_GROUP object 235 * \param order BIGNUM to which the order is copied 236 * \param ctx unused 237 * \return 1 on success and 0 if an error occurred 238 */ 239 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); 240 241 /** Gets the order of an EC_GROUP 242 * \param group EC_GROUP object 243 * \return the group order 244 */ 245 const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); 246 247 /** Gets the number of bits of the order of an EC_GROUP 248 * \param group EC_GROUP object 249 * \return number of bits of group order. 250 */ 251 int EC_GROUP_order_bits(const EC_GROUP *group); 252 253 /** Gets the cofactor of a EC_GROUP 254 * \param group EC_GROUP object 255 * \param cofactor BIGNUM to which the cofactor is copied 256 * \param ctx unused 257 * \return 1 on success and 0 if an error occurred 258 */ 259 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, 260 BN_CTX *ctx); 261 262 /** Gets the cofactor of an EC_GROUP 263 * \param group EC_GROUP object 264 * \return the group cofactor 265 */ 266 const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group); 267 268 /** Sets the name of a EC_GROUP object 269 * \param group EC_GROUP object 270 * \param nid NID of the curve name OID 271 */ 272 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); 273 274 /** Returns the curve name of a EC_GROUP object 275 * \param group EC_GROUP object 276 * \return NID of the curve name OID or 0 if not set. 277 */ 278 int EC_GROUP_get_curve_name(const EC_GROUP *group); 279 280 /** Gets the field of an EC_GROUP 281 * \param group EC_GROUP object 282 * \return the group field 283 */ 284 const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group); 285 286 /** Returns the field type of the EC_GROUP. 287 * \param group EC_GROUP object 288 * \return NID of the underlying field type OID. 289 */ 290 int EC_GROUP_get_field_type(const EC_GROUP *group); 291 292 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); 293 int EC_GROUP_get_asn1_flag(const EC_GROUP *group); 294 295 void EC_GROUP_set_point_conversion_form(EC_GROUP *group, 296 point_conversion_form_t form); 297 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); 298 299 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x); 300 size_t EC_GROUP_get_seed_len(const EC_GROUP *); 301 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); 302 303 /** Sets the parameters of an ec curve defined by y^2 = x^3 + a*x + b (for GFp) 304 * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m) 305 * \param group EC_GROUP object 306 * \param p BIGNUM with the prime number (GFp) or the polynomial 307 * defining the underlying field (GF2m) 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 occurred 312 */ 313 int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, 314 const BIGNUM *b, BN_CTX *ctx); 315 316 /** Gets the parameters of the ec curve defined by y^2 = x^3 + a*x + b (for GFp) 317 * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m) 318 * \param group EC_GROUP object 319 * \param p BIGNUM with the prime number (GFp) or the polynomial 320 * defining the underlying field (GF2m) 321 * \param a BIGNUM for parameter a of the equation 322 * \param b BIGNUM for parameter b of the equation 323 * \param ctx BN_CTX object (optional) 324 * \return 1 on success and 0 if an error occurred 325 */ 326 int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, 327 BN_CTX *ctx); 328 329 # ifndef OPENSSL_NO_DEPRECATED_3_0 330 /** Sets the parameters of an ec curve. Synonym for EC_GROUP_set_curve 331 * \param group EC_GROUP object 332 * \param p BIGNUM with the prime number (GFp) or the polynomial 333 * defining the underlying field (GF2m) 334 * \param a BIGNUM with parameter a of the equation 335 * \param b BIGNUM with parameter b of the equation 336 * \param ctx BN_CTX object (optional) 337 * \return 1 on success and 0 if an error occurred 338 */ 339 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GFp(EC_GROUP *group, 340 const BIGNUM *p, 341 const BIGNUM *a, 342 const BIGNUM *b, 343 BN_CTX *ctx); 344 345 /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve 346 * \param group EC_GROUP object 347 * \param p BIGNUM with the prime number (GFp) or the polynomial 348 * defining the underlying field (GF2m) 349 * \param a BIGNUM for parameter a of the equation 350 * \param b BIGNUM for parameter b of the equation 351 * \param ctx BN_CTX object (optional) 352 * \return 1 on success and 0 if an error occurred 353 */ 354 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, 355 BIGNUM *p, 356 BIGNUM *a, BIGNUM *b, 357 BN_CTX *ctx); 358 359 # ifndef OPENSSL_NO_EC2M 360 /** Sets the parameter of an ec curve. Synonym for EC_GROUP_set_curve 361 * \param group EC_GROUP object 362 * \param p BIGNUM with the prime number (GFp) or the polynomial 363 * defining the underlying field (GF2m) 364 * \param a BIGNUM with parameter a of the equation 365 * \param b BIGNUM with parameter b of the equation 366 * \param ctx BN_CTX object (optional) 367 * \return 1 on success and 0 if an error occurred 368 */ 369 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, 370 const BIGNUM *p, 371 const BIGNUM *a, 372 const BIGNUM *b, 373 BN_CTX *ctx); 374 375 /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve 376 * \param group EC_GROUP object 377 * \param p BIGNUM with the prime number (GFp) or the polynomial 378 * defining the underlying field (GF2m) 379 * \param a BIGNUM for parameter a of the equation 380 * \param b BIGNUM for parameter b of the equation 381 * \param ctx BN_CTX object (optional) 382 * \return 1 on success and 0 if an error occurred 383 */ 384 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, 385 BIGNUM *p, 386 BIGNUM *a, BIGNUM *b, 387 BN_CTX *ctx); 388 # endif /* OPENSSL_NO_EC2M */ 389 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 390 391 /** Returns the number of bits needed to represent a field element 392 * \param group EC_GROUP object 393 * \return number of bits needed to represent a field element 394 */ 395 int EC_GROUP_get_degree(const EC_GROUP *group); 396 397 /** Checks whether the parameter in the EC_GROUP define a valid ec group 398 * \param group EC_GROUP object 399 * \param ctx BN_CTX object (optional) 400 * \return 1 if group is a valid ec group and 0 otherwise 401 */ 402 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); 403 404 /** Checks whether the discriminant of the elliptic curve is zero or not 405 * \param group EC_GROUP object 406 * \param ctx BN_CTX object (optional) 407 * \return 1 if the discriminant is not zero and 0 otherwise 408 */ 409 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); 410 411 /** Compares two EC_GROUP objects 412 * \param a first EC_GROUP object 413 * \param b second EC_GROUP object 414 * \param ctx BN_CTX object (optional) 415 * \return 0 if the groups are equal, 1 if not, or -1 on error 416 */ 417 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); 418 419 /* 420 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after 421 * choosing an appropriate EC_METHOD 422 */ 423 424 /** Creates a new EC_GROUP object with the specified parameters defined 425 * over GFp (defined by the equation y^2 = x^3 + a*x + b) 426 * \param p BIGNUM with the prime number 427 * \param a BIGNUM with the parameter a of the equation 428 * \param b BIGNUM with the parameter b of the equation 429 * \param ctx BN_CTX object (optional) 430 * \return newly created EC_GROUP object with the specified parameters 431 */ 432 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, 433 const BIGNUM *b, BN_CTX *ctx); 434 # ifndef OPENSSL_NO_EC2M 435 /** Creates a new EC_GROUP object with the specified parameters defined 436 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) 437 * \param p BIGNUM with the polynomial defining the underlying field 438 * \param a BIGNUM with the parameter a of the equation 439 * \param b BIGNUM with the parameter b of the equation 440 * \param ctx BN_CTX object (optional) 441 * \return newly created EC_GROUP object with the specified parameters 442 */ 443 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, 444 const BIGNUM *b, BN_CTX *ctx); 445 # endif 446 447 /** 448 * Creates a EC_GROUP object with a curve specified by parameters. 449 * The parameters may be explicit or a named curve, 450 * \param params A list of parameters describing the group. 451 * \param libctx The associated library context or NULL for the default 452 * context 453 * \param propq A property query string 454 * \return newly created EC_GROUP object with specified parameters or NULL 455 * if an error occurred 456 */ 457 EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[], 458 OSSL_LIB_CTX *libctx, const char *propq); 459 460 /** 461 * Creates a EC_GROUP object with a curve specified by a NID 462 * \param libctx The associated library context or NULL for the default 463 * context 464 * \param propq A property query string 465 * \param nid NID of the OID of the curve name 466 * \return newly created EC_GROUP object with specified curve or NULL 467 * if an error occurred 468 */ 469 EC_GROUP *EC_GROUP_new_by_curve_name_ex(OSSL_LIB_CTX *libctx, const char *propq, 470 int nid); 471 472 /** 473 * Creates a EC_GROUP object with a curve specified by a NID. Same as 474 * EC_GROUP_new_by_curve_name_ex but the libctx and propq are always 475 * NULL. 476 * \param nid NID of the OID of the curve name 477 * \return newly created EC_GROUP object with specified curve or NULL 478 * if an error occurred 479 */ 480 EC_GROUP *EC_GROUP_new_by_curve_name(int nid); 481 482 /** Creates a new EC_GROUP object from an ECPARAMETERS object 483 * \param params pointer to the ECPARAMETERS object 484 * \return newly created EC_GROUP object with specified curve or NULL 485 * if an error occurred 486 */ 487 EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params); 488 489 /** Creates an ECPARAMETERS object for the given EC_GROUP object. 490 * \param group pointer to the EC_GROUP object 491 * \param params pointer to an existing ECPARAMETERS object or NULL 492 * \return pointer to the new ECPARAMETERS object or NULL 493 * if an error occurred. 494 */ 495 ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group, 496 ECPARAMETERS *params); 497 498 /** Creates a new EC_GROUP object from an ECPKPARAMETERS object 499 * \param params pointer to an existing ECPKPARAMETERS object, or NULL 500 * \return newly created EC_GROUP object with specified curve, or NULL 501 * if an error occurred 502 */ 503 EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params); 504 505 /** Creates an ECPKPARAMETERS object for the given EC_GROUP object. 506 * \param group pointer to the EC_GROUP object 507 * \param params pointer to an existing ECPKPARAMETERS object or NULL 508 * \return pointer to the new ECPKPARAMETERS object or NULL 509 * if an error occurred. 510 */ 511 ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, 512 ECPKPARAMETERS *params); 513 514 /********************************************************************/ 515 /* handling of internal curves */ 516 /********************************************************************/ 517 518 typedef struct { 519 int nid; 520 const char *comment; 521 } EC_builtin_curve; 522 523 /* 524 * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all 525 * available curves or zero if a error occurred. In case r is not zero, 526 * nitems EC_builtin_curve structures are filled with the data of the first 527 * nitems internal groups 528 */ 529 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); 530 531 const char *EC_curve_nid2nist(int nid); 532 int EC_curve_nist2nid(const char *name); 533 int EC_GROUP_check_named_curve(const EC_GROUP *group, int nist_only, 534 BN_CTX *ctx); 535 536 /********************************************************************/ 537 /* EC_POINT functions */ 538 /********************************************************************/ 539 540 /** Creates a new EC_POINT object for the specified EC_GROUP 541 * \param group EC_GROUP the underlying EC_GROUP object 542 * \return newly created EC_POINT object or NULL if an error occurred 543 */ 544 EC_POINT *EC_POINT_new(const EC_GROUP *group); 545 546 /** Frees a EC_POINT object 547 * \param point EC_POINT object to be freed 548 */ 549 void EC_POINT_free(EC_POINT *point); 550 551 /** Clears and frees a EC_POINT object 552 * \param point EC_POINT object to be cleared and freed 553 */ 554 void EC_POINT_clear_free(EC_POINT *point); 555 556 /** Copies EC_POINT object 557 * \param dst destination EC_POINT object 558 * \param src source EC_POINT object 559 * \return 1 on success and 0 if an error occurred 560 */ 561 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); 562 563 /** Creates a new EC_POINT object and copies the content of the supplied 564 * EC_POINT 565 * \param src source EC_POINT object 566 * \param group underlying the EC_GROUP object 567 * \return newly created EC_POINT object or NULL if an error occurred 568 */ 569 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); 570 571 /** Sets a point to infinity (neutral element) 572 * \param group underlying EC_GROUP object 573 * \param point EC_POINT to set to infinity 574 * \return 1 on success and 0 if an error occurred 575 */ 576 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); 577 578 # ifndef OPENSSL_NO_DEPRECATED_3_0 579 /** Returns the EC_METHOD used in EC_POINT object 580 * \param point EC_POINT object 581 * \return the EC_METHOD used 582 */ 583 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); 584 585 /** Sets the jacobian projective coordinates of a EC_POINT over GFp 586 * \param group underlying EC_GROUP object 587 * \param p EC_POINT object 588 * \param x BIGNUM with the x-coordinate 589 * \param y BIGNUM with the y-coordinate 590 * \param z BIGNUM with the z-coordinate 591 * \param ctx BN_CTX object (optional) 592 * \return 1 on success and 0 if an error occurred 593 */ 594 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_Jprojective_coordinates_GFp 595 (const EC_GROUP *group, EC_POINT *p, 596 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, 597 BN_CTX *ctx); 598 599 /** Gets the jacobian projective coordinates of a EC_POINT over GFp 600 * \param group underlying EC_GROUP object 601 * \param p EC_POINT object 602 * \param x BIGNUM for the x-coordinate 603 * \param y BIGNUM for the y-coordinate 604 * \param z BIGNUM for the z-coordinate 605 * \param ctx BN_CTX object (optional) 606 * \return 1 on success and 0 if an error occurred 607 */ 608 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_Jprojective_coordinates_GFp 609 (const EC_GROUP *group, const EC_POINT *p, 610 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); 611 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 612 613 /** Sets the affine coordinates of an EC_POINT 614 * \param group underlying EC_GROUP object 615 * \param p EC_POINT object 616 * \param x BIGNUM with the x-coordinate 617 * \param y BIGNUM with the y-coordinate 618 * \param ctx BN_CTX object (optional) 619 * \return 1 on success and 0 if an error occurred 620 */ 621 int EC_POINT_set_affine_coordinates(const EC_GROUP *group, EC_POINT *p, 622 const BIGNUM *x, const BIGNUM *y, 623 BN_CTX *ctx); 624 625 /** Gets the affine coordinates of an EC_POINT. 626 * \param group underlying EC_GROUP object 627 * \param p EC_POINT object 628 * \param x BIGNUM for the x-coordinate 629 * \param y BIGNUM for the y-coordinate 630 * \param ctx BN_CTX object (optional) 631 * \return 1 on success and 0 if an error occurred 632 */ 633 int EC_POINT_get_affine_coordinates(const EC_GROUP *group, const EC_POINT *p, 634 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 635 636 # ifndef OPENSSL_NO_DEPRECATED_3_0 637 /** Sets the affine coordinates of an EC_POINT. A synonym of 638 * EC_POINT_set_affine_coordinates 639 * \param group underlying EC_GROUP object 640 * \param p EC_POINT object 641 * \param x BIGNUM with the x-coordinate 642 * \param y BIGNUM with the y-coordinate 643 * \param ctx BN_CTX object (optional) 644 * \return 1 on success and 0 if an error occurred 645 */ 646 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GFp 647 (const EC_GROUP *group, EC_POINT *p, 648 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 649 650 /** Gets the affine coordinates of an EC_POINT. A synonym of 651 * EC_POINT_get_affine_coordinates 652 * \param group underlying EC_GROUP object 653 * \param p EC_POINT object 654 * \param x BIGNUM for the x-coordinate 655 * \param y BIGNUM for the y-coordinate 656 * \param ctx BN_CTX object (optional) 657 * \return 1 on success and 0 if an error occurred 658 */ 659 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GFp 660 (const EC_GROUP *group, const EC_POINT *p, 661 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 662 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 663 664 /** Sets the x9.62 compressed coordinates of a EC_POINT 665 * \param group underlying EC_GROUP object 666 * \param p EC_POINT object 667 * \param x BIGNUM with x-coordinate 668 * \param y_bit integer with the y-Bit (either 0 or 1) 669 * \param ctx BN_CTX object (optional) 670 * \return 1 on success and 0 if an error occurred 671 */ 672 int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *p, 673 const BIGNUM *x, int y_bit, 674 BN_CTX *ctx); 675 676 # ifndef OPENSSL_NO_DEPRECATED_3_0 677 /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of 678 * EC_POINT_set_compressed_coordinates 679 * \param group underlying EC_GROUP object 680 * \param p EC_POINT object 681 * \param x BIGNUM with x-coordinate 682 * \param y_bit integer with the y-Bit (either 0 or 1) 683 * \param ctx BN_CTX object (optional) 684 * \return 1 on success and 0 if an error occurred 685 */ 686 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GFp 687 (const EC_GROUP *group, EC_POINT *p, 688 const BIGNUM *x, int y_bit, BN_CTX *ctx); 689 # ifndef OPENSSL_NO_EC2M 690 /** Sets the affine coordinates of an EC_POINT. A synonym of 691 * EC_POINT_set_affine_coordinates 692 * \param group underlying EC_GROUP object 693 * \param p EC_POINT object 694 * \param x BIGNUM with the x-coordinate 695 * \param y BIGNUM with the y-coordinate 696 * \param ctx BN_CTX object (optional) 697 * \return 1 on success and 0 if an error occurred 698 */ 699 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GF2m 700 (const EC_GROUP *group, EC_POINT *p, 701 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 702 703 /** Gets the affine coordinates of an EC_POINT. A synonym of 704 * EC_POINT_get_affine_coordinates 705 * \param group underlying EC_GROUP object 706 * \param p EC_POINT object 707 * \param x BIGNUM for the x-coordinate 708 * \param y BIGNUM for the y-coordinate 709 * \param ctx BN_CTX object (optional) 710 * \return 1 on success and 0 if an error occurred 711 */ 712 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GF2m 713 (const EC_GROUP *group, const EC_POINT *p, 714 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 715 716 /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of 717 * EC_POINT_set_compressed_coordinates 718 * \param group underlying EC_GROUP object 719 * \param p EC_POINT object 720 * \param x BIGNUM with x-coordinate 721 * \param y_bit integer with the y-Bit (either 0 or 1) 722 * \param ctx BN_CTX object (optional) 723 * \return 1 on success and 0 if an error occurred 724 */ 725 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GF2m 726 (const EC_GROUP *group, EC_POINT *p, 727 const BIGNUM *x, int y_bit, BN_CTX *ctx); 728 # endif 729 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 730 731 /** Encodes a EC_POINT object to a octet string 732 * \param group underlying EC_GROUP object 733 * \param p EC_POINT object 734 * \param form point conversion form 735 * \param buf memory buffer for the result. If NULL the function returns 736 * required buffer size. 737 * \param len length of the memory buffer 738 * \param ctx BN_CTX object (optional) 739 * \return the length of the encoded octet string or 0 if an error occurred 740 */ 741 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, 742 point_conversion_form_t form, 743 unsigned char *buf, size_t len, BN_CTX *ctx); 744 745 /** Decodes a EC_POINT from a octet string 746 * \param group underlying EC_GROUP object 747 * \param p EC_POINT object 748 * \param buf memory buffer with the encoded ec point 749 * \param len length of the encoded ec point 750 * \param ctx BN_CTX object (optional) 751 * \return 1 on success and 0 if an error occurred 752 */ 753 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, 754 const unsigned char *buf, size_t len, BN_CTX *ctx); 755 756 /** Encodes an EC_POINT object to an allocated octet string 757 * \param group underlying EC_GROUP object 758 * \param point EC_POINT object 759 * \param form point conversion form 760 * \param pbuf returns pointer to allocated buffer 761 * \param ctx BN_CTX object (optional) 762 * \return the length of the encoded octet string or 0 if an error occurred 763 */ 764 size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point, 765 point_conversion_form_t form, 766 unsigned char **pbuf, BN_CTX *ctx); 767 768 /* other interfaces to point2oct/oct2point: */ 769 # ifndef OPENSSL_NO_DEPRECATED_3_0 770 OSSL_DEPRECATEDIN_3_0 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, 771 const EC_POINT *, 772 point_conversion_form_t form, 773 BIGNUM *, BN_CTX *); 774 OSSL_DEPRECATEDIN_3_0 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, 775 const BIGNUM *, 776 EC_POINT *, BN_CTX *); 777 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 778 779 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, 780 point_conversion_form_t form, BN_CTX *); 781 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, 782 EC_POINT *, BN_CTX *); 783 784 /********************************************************************/ 785 /* functions for doing EC_POINT arithmetic */ 786 /********************************************************************/ 787 788 /** Computes the sum of two EC_POINT 789 * \param group underlying EC_GROUP object 790 * \param r EC_POINT object for the result (r = a + b) 791 * \param a EC_POINT object with the first summand 792 * \param b EC_POINT object with the second summand 793 * \param ctx BN_CTX object (optional) 794 * \return 1 on success and 0 if an error occurred 795 */ 796 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, 797 const EC_POINT *b, BN_CTX *ctx); 798 799 /** Computes the double of a EC_POINT 800 * \param group underlying EC_GROUP object 801 * \param r EC_POINT object for the result (r = 2 * a) 802 * \param a EC_POINT object 803 * \param ctx BN_CTX object (optional) 804 * \return 1 on success and 0 if an error occurred 805 */ 806 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, 807 BN_CTX *ctx); 808 809 /** Computes the inverse of a EC_POINT 810 * \param group underlying EC_GROUP object 811 * \param a EC_POINT object to be inverted (it's used for the result as well) 812 * \param ctx BN_CTX object (optional) 813 * \return 1 on success and 0 if an error occurred 814 */ 815 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); 816 817 /** Checks whether the point is the neutral element of the group 818 * \param group the underlying EC_GROUP object 819 * \param p EC_POINT object 820 * \return 1 if the point is the neutral element and 0 otherwise 821 */ 822 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); 823 824 /** Checks whether the point is on the curve 825 * \param group underlying EC_GROUP object 826 * \param point EC_POINT object to check 827 * \param ctx BN_CTX object (optional) 828 * \return 1 if the point is on the curve, 0 if not, or -1 on error 829 */ 830 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, 831 BN_CTX *ctx); 832 833 /** Compares two EC_POINTs 834 * \param group underlying EC_GROUP object 835 * \param a first EC_POINT object 836 * \param b second EC_POINT object 837 * \param ctx BN_CTX object (optional) 838 * \return 1 if the points are not equal, 0 if they are, or -1 on error 839 */ 840 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, 841 BN_CTX *ctx); 842 843 # ifndef OPENSSL_NO_DEPRECATED_3_0 844 OSSL_DEPRECATEDIN_3_0 int EC_POINT_make_affine(const EC_GROUP *group, 845 EC_POINT *point, BN_CTX *ctx); 846 OSSL_DEPRECATEDIN_3_0 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, 847 EC_POINT *points[], BN_CTX *ctx); 848 849 /** Computes r = generator * n + sum_{i=0}^{num-1} p[i] * m[i] 850 * \param group underlying EC_GROUP object 851 * \param r EC_POINT object for the result 852 * \param n BIGNUM with the multiplier for the group generator (optional) 853 * \param num number further summands 854 * \param p array of size num of EC_POINT objects 855 * \param m array of size num of BIGNUM objects 856 * \param ctx BN_CTX object (optional) 857 * \return 1 on success and 0 if an error occurred 858 */ 859 OSSL_DEPRECATEDIN_3_0 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, 860 const BIGNUM *n, size_t num, 861 const EC_POINT *p[], const BIGNUM *m[], 862 BN_CTX *ctx); 863 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 864 865 /** Computes r = generator * n + q * m 866 * \param group underlying EC_GROUP object 867 * \param r EC_POINT object for the result 868 * \param n BIGNUM with the multiplier for the group generator (optional) 869 * \param q EC_POINT object with the first factor of the second summand 870 * \param m BIGNUM with the second factor of the second summand 871 * \param ctx BN_CTX object (optional) 872 * \return 1 on success and 0 if an error occurred 873 */ 874 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, 875 const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); 876 877 # ifndef OPENSSL_NO_DEPRECATED_3_0 878 /** Stores multiples of generator for faster point multiplication 879 * \param group EC_GROUP object 880 * \param ctx BN_CTX object (optional) 881 * \return 1 on success and 0 if an error occurred 882 */ 883 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); 884 885 /** Reports whether a precomputation has been done 886 * \param group EC_GROUP object 887 * \return 1 if a pre-computation has been done and 0 otherwise 888 */ 889 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_have_precompute_mult(const EC_GROUP *group); 890 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 891 892 /********************************************************************/ 893 /* ASN1 stuff */ 894 /********************************************************************/ 895 896 DECLARE_ASN1_ITEM(ECPKPARAMETERS) 897 DECLARE_ASN1_ALLOC_FUNCTIONS(ECPKPARAMETERS) 898 DECLARE_ASN1_ITEM(ECPARAMETERS) 899 DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) 900 901 /* 902 * EC_GROUP_get_basis_type() returns the NID of the basis type used to 903 * represent the field elements 904 */ 905 int EC_GROUP_get_basis_type(const EC_GROUP *); 906 # ifndef OPENSSL_NO_EC2M 907 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); 908 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, 909 unsigned int *k2, unsigned int *k3); 910 # endif 911 912 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); 913 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); 914 915 # define d2i_ECPKParameters_bio(bp,x) \ 916 ASN1_d2i_bio_of(EC_GROUP, NULL, d2i_ECPKParameters, bp, x) 917 # define i2d_ECPKParameters_bio(bp,x) \ 918 ASN1_i2d_bio_of(EC_GROUP, i2d_ECPKParameters, bp, x) 919 # define d2i_ECPKParameters_fp(fp,x) \ 920 (EC_GROUP *)ASN1_d2i_fp(NULL, (d2i_of_void *)d2i_ECPKParameters, (fp), \ 921 (void **)(x)) 922 # define i2d_ECPKParameters_fp(fp,x) \ 923 ASN1_i2d_fp((i2d_of_void *)i2d_ECPKParameters, (fp), (void *)(x)) 924 925 # ifndef OPENSSL_NO_DEPRECATED_3_0 926 OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, 927 int off); 928 # ifndef OPENSSL_NO_STDIO 929 OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, 930 int off); 931 # endif 932 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 933 934 /********************************************************************/ 935 /* EC_KEY functions */ 936 /********************************************************************/ 937 938 /* some values for the encoding_flag */ 939 # define EC_PKEY_NO_PARAMETERS 0x001 940 # define EC_PKEY_NO_PUBKEY 0x002 941 942 /* some values for the flags field */ 943 # define EC_FLAG_SM2_RANGE 0x0004 944 # define EC_FLAG_COFACTOR_ECDH 0x1000 945 # define EC_FLAG_CHECK_NAMED_GROUP 0x2000 946 # define EC_FLAG_CHECK_NAMED_GROUP_NIST 0x4000 947 # define EC_FLAG_CHECK_NAMED_GROUP_MASK \ 948 (EC_FLAG_CHECK_NAMED_GROUP | EC_FLAG_CHECK_NAMED_GROUP_NIST) 949 950 /* Deprecated flags - it was using 0x01..0x02 */ 951 # define EC_FLAG_NON_FIPS_ALLOW 0x0000 952 # define EC_FLAG_FIPS_CHECKED 0x0000 953 954 # ifndef OPENSSL_NO_DEPRECATED_3_0 955 /** 956 * Creates a new EC_KEY object. 957 * \param ctx The library context for to use for this EC_KEY. May be NULL in 958 * which case the default library context is used. 959 * \return EC_KEY object or NULL if an error occurred. 960 */ 961 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_ex(OSSL_LIB_CTX *ctx, const char *propq); 962 963 /** 964 * Creates a new EC_KEY object. Same as calling EC_KEY_new_ex with a 965 * NULL library context 966 * \return EC_KEY object or NULL if an error occurred. 967 */ 968 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new(void); 969 970 OSSL_DEPRECATEDIN_3_0 int EC_KEY_get_flags(const EC_KEY *key); 971 972 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_flags(EC_KEY *key, int flags); 973 974 OSSL_DEPRECATEDIN_3_0 void EC_KEY_clear_flags(EC_KEY *key, int flags); 975 976 OSSL_DEPRECATEDIN_3_0 int EC_KEY_decoded_from_explicit_params(const EC_KEY *key); 977 978 /** 979 * Creates a new EC_KEY object using a named curve as underlying 980 * EC_GROUP object. 981 * \param ctx The library context for to use for this EC_KEY. May be NULL in 982 * which case the default library context is used. 983 * \param propq Any property query string 984 * \param nid NID of the named curve. 985 * \return EC_KEY object or NULL if an error occurred. 986 */ 987 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name_ex(OSSL_LIB_CTX *ctx, 988 const char *propq, 989 int nid); 990 991 /** 992 * Creates a new EC_KEY object using a named curve as underlying 993 * EC_GROUP object. Same as calling EC_KEY_new_by_curve_name_ex with a NULL 994 * library context and property query string. 995 * \param nid NID of the named curve. 996 * \return EC_KEY object or NULL if an error occurred. 997 */ 998 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name(int nid); 999 1000 /** Frees a EC_KEY object. 1001 * \param key EC_KEY object to be freed. 1002 */ 1003 OSSL_DEPRECATEDIN_3_0 void EC_KEY_free(EC_KEY *key); 1004 1005 /** Copies a EC_KEY object. 1006 * \param dst destination EC_KEY object 1007 * \param src src EC_KEY object 1008 * \return dst or NULL if an error occurred. 1009 */ 1010 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); 1011 1012 /** Creates a new EC_KEY object and copies the content from src to it. 1013 * \param src the source EC_KEY object 1014 * \return newly created EC_KEY object or NULL if an error occurred. 1015 */ 1016 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_dup(const EC_KEY *src); 1017 1018 /** Increases the internal reference count of a EC_KEY object. 1019 * \param key EC_KEY object 1020 * \return 1 on success and 0 if an error occurred. 1021 */ 1022 OSSL_DEPRECATEDIN_3_0 int EC_KEY_up_ref(EC_KEY *key); 1023 1024 /** Returns the ENGINE object of a EC_KEY object 1025 * \param eckey EC_KEY object 1026 * \return the ENGINE object (possibly NULL). 1027 */ 1028 OSSL_DEPRECATEDIN_3_0 ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey); 1029 1030 /** Returns the EC_GROUP object of a EC_KEY object 1031 * \param key EC_KEY object 1032 * \return the EC_GROUP object (possibly NULL). 1033 */ 1034 OSSL_DEPRECATEDIN_3_0 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); 1035 1036 /** Sets the EC_GROUP of a EC_KEY object. 1037 * \param key EC_KEY object 1038 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY 1039 * object will use an own copy of the EC_GROUP). 1040 * \return 1 on success and 0 if an error occurred. 1041 */ 1042 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); 1043 1044 /** Returns the private key of a EC_KEY object. 1045 * \param key EC_KEY object 1046 * \return a BIGNUM with the private key (possibly NULL). 1047 */ 1048 OSSL_DEPRECATEDIN_3_0 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); 1049 1050 /** Sets the private key of a EC_KEY object. 1051 * \param key EC_KEY object 1052 * \param prv BIGNUM with the private key (note: the EC_KEY object 1053 * will use an own copy of the BIGNUM). 1054 * \return 1 on success and 0 if an error occurred. 1055 */ 1056 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); 1057 1058 /** Returns the public key of a EC_KEY object. 1059 * \param key the EC_KEY object 1060 * \return a EC_POINT object with the public key (possibly NULL) 1061 */ 1062 OSSL_DEPRECATEDIN_3_0 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); 1063 1064 /** Sets the public key of a EC_KEY object. 1065 * \param key EC_KEY object 1066 * \param pub EC_POINT object with the public key (note: the EC_KEY object 1067 * will use an own copy of the EC_POINT object). 1068 * \return 1 on success and 0 if an error occurred. 1069 */ 1070 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); 1071 1072 OSSL_DEPRECATEDIN_3_0 unsigned EC_KEY_get_enc_flags(const EC_KEY *key); 1073 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); 1074 OSSL_DEPRECATEDIN_3_0 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); 1075 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_conv_form(EC_KEY *eckey, 1076 point_conversion_form_t cform); 1077 # endif /*OPENSSL_NO_DEPRECATED_3_0 */ 1078 1079 # define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \ 1080 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef) 1081 1082 # ifndef OPENSSL_NO_DEPRECATED_3_0 1083 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg); 1084 OSSL_DEPRECATEDIN_3_0 void *EC_KEY_get_ex_data(const EC_KEY *key, int idx); 1085 1086 /* wrapper functions for the underlying EC_GROUP object */ 1087 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); 1088 1089 /** Creates a table of pre-computed multiples of the generator to 1090 * accelerate further EC_KEY operations. 1091 * \param key EC_KEY object 1092 * \param ctx BN_CTX object (optional) 1093 * \return 1 on success and 0 if an error occurred. 1094 */ 1095 OSSL_DEPRECATEDIN_3_0 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); 1096 1097 /** Creates a new ec private (and optional a new public) key. 1098 * \param key EC_KEY object 1099 * \return 1 on success and 0 if an error occurred. 1100 */ 1101 OSSL_DEPRECATEDIN_3_0 int EC_KEY_generate_key(EC_KEY *key); 1102 1103 /** Verifies that a private and/or public key is valid. 1104 * \param key the EC_KEY object 1105 * \return 1 on success and 0 otherwise. 1106 */ 1107 OSSL_DEPRECATEDIN_3_0 int EC_KEY_check_key(const EC_KEY *key); 1108 1109 /** Indicates if an EC_KEY can be used for signing. 1110 * \param eckey the EC_KEY object 1111 * \return 1 if can can sign and 0 otherwise. 1112 */ 1113 OSSL_DEPRECATEDIN_3_0 int EC_KEY_can_sign(const EC_KEY *eckey); 1114 1115 /** Sets a public key from affine coordinates performing 1116 * necessary NIST PKV tests. 1117 * \param key the EC_KEY object 1118 * \param x public key x coordinate 1119 * \param y public key y coordinate 1120 * \return 1 on success and 0 otherwise. 1121 */ 1122 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, 1123 BIGNUM *x, 1124 BIGNUM *y); 1125 1126 /** Encodes an EC_KEY public key to an allocated octet string 1127 * \param key key to encode 1128 * \param form point conversion form 1129 * \param pbuf returns pointer to allocated buffer 1130 * \param ctx BN_CTX object (optional) 1131 * \return the length of the encoded octet string or 0 if an error occurred 1132 */ 1133 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_key2buf(const EC_KEY *key, 1134 point_conversion_form_t form, 1135 unsigned char **pbuf, BN_CTX *ctx); 1136 1137 /** Decodes a EC_KEY public key from a octet string 1138 * \param key key to decode 1139 * \param buf memory buffer with the encoded ec point 1140 * \param len length of the encoded ec point 1141 * \param ctx BN_CTX object (optional) 1142 * \return 1 on success and 0 if an error occurred 1143 */ 1144 1145 OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, 1146 size_t len, BN_CTX *ctx); 1147 1148 /** Decodes an EC_KEY private key from an octet string 1149 * \param key key to decode 1150 * \param buf memory buffer with the encoded private key 1151 * \param len length of the encoded key 1152 * \return 1 on success and 0 if an error occurred 1153 */ 1154 1155 OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2priv(EC_KEY *key, const unsigned char *buf, 1156 size_t len); 1157 1158 /** Encodes a EC_KEY private key to an octet string 1159 * \param key key to encode 1160 * \param buf memory buffer for the result. If NULL the function returns 1161 * required buffer size. 1162 * \param len length of the memory buffer 1163 * \return the length of the encoded octet string or 0 if an error occurred 1164 */ 1165 1166 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2oct(const EC_KEY *key, 1167 unsigned char *buf, size_t len); 1168 1169 /** Encodes an EC_KEY private key to an allocated octet string 1170 * \param eckey key to encode 1171 * \param pbuf returns pointer to allocated buffer 1172 * \return the length of the encoded octet string or 0 if an error occurred 1173 */ 1174 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2buf(const EC_KEY *eckey, 1175 unsigned char **pbuf); 1176 1177 /********************************************************************/ 1178 /* de- and encoding functions for SEC1 ECPrivateKey */ 1179 /********************************************************************/ 1180 1181 /** Decodes a private key from a memory buffer. 1182 * \param key a pointer to a EC_KEY object which should be used (or NULL) 1183 * \param in pointer to memory with the DER encoded private key 1184 * \param len length of the DER encoded private key 1185 * \return the decoded private key or NULL if an error occurred. 1186 */ 1187 OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, 1188 const unsigned char **in, 1189 long len); 1190 1191 /** Encodes a private key object and stores the result in a buffer. 1192 * \param key the EC_KEY object to encode 1193 * \param out the buffer for the result (if NULL the function returns number 1194 * of bytes needed). 1195 * \return 1 on success and 0 if an error occurred. 1196 */ 1197 OSSL_DEPRECATEDIN_3_0 int i2d_ECPrivateKey(const EC_KEY *key, 1198 unsigned char **out); 1199 1200 /********************************************************************/ 1201 /* de- and encoding functions for EC parameters */ 1202 /********************************************************************/ 1203 1204 /** Decodes ec parameter from a memory buffer. 1205 * \param key a pointer to a EC_KEY object which should be used (or NULL) 1206 * \param in pointer to memory with the DER encoded ec parameters 1207 * \param len length of the DER encoded ec parameters 1208 * \return a EC_KEY object with the decoded parameters or NULL if an error 1209 * occurred. 1210 */ 1211 OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECParameters(EC_KEY **key, 1212 const unsigned char **in, 1213 long len); 1214 1215 /** Encodes ec parameter and stores the result in a buffer. 1216 * \param key the EC_KEY object with ec parameters to encode 1217 * \param out the buffer for the result (if NULL the function returns number 1218 * of bytes needed). 1219 * \return 1 on success and 0 if an error occurred. 1220 */ 1221 OSSL_DEPRECATEDIN_3_0 int i2d_ECParameters(const EC_KEY *key, 1222 unsigned char **out); 1223 1224 /********************************************************************/ 1225 /* de- and encoding functions for EC public key */ 1226 /* (octet string, not DER -- hence 'o2i' and 'i2o') */ 1227 /********************************************************************/ 1228 1229 /** Decodes an ec public key from a octet string. 1230 * \param key a pointer to a EC_KEY object which should be used 1231 * \param in memory buffer with the encoded public key 1232 * \param len length of the encoded public key 1233 * \return EC_KEY object with decoded public key or NULL if an error 1234 * occurred. 1235 */ 1236 OSSL_DEPRECATEDIN_3_0 EC_KEY *o2i_ECPublicKey(EC_KEY **key, 1237 const unsigned char **in, long len); 1238 1239 /** Encodes an ec public key in an octet string. 1240 * \param key the EC_KEY object with the public key 1241 * \param out the buffer for the result (if NULL the function returns number 1242 * of bytes needed). 1243 * \return 1 on success and 0 if an error occurred 1244 */ 1245 OSSL_DEPRECATEDIN_3_0 int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out); 1246 1247 /** Prints out the ec parameters on human readable form. 1248 * \param bp BIO object to which the information is printed 1249 * \param key EC_KEY object 1250 * \return 1 on success and 0 if an error occurred 1251 */ 1252 OSSL_DEPRECATEDIN_3_0 int ECParameters_print(BIO *bp, const EC_KEY *key); 1253 1254 /** Prints out the contents of a EC_KEY object 1255 * \param bp BIO object to which the information is printed 1256 * \param key EC_KEY object 1257 * \param off line offset 1258 * \return 1 on success and 0 if an error occurred 1259 */ 1260 OSSL_DEPRECATEDIN_3_0 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); 1261 1262 # ifndef OPENSSL_NO_STDIO 1263 /** Prints out the ec parameters on human readable form. 1264 * \param fp file descriptor to which the information is printed 1265 * \param key EC_KEY object 1266 * \return 1 on success and 0 if an error occurred 1267 */ 1268 OSSL_DEPRECATEDIN_3_0 int ECParameters_print_fp(FILE *fp, const EC_KEY *key); 1269 1270 /** Prints out the contents of a EC_KEY object 1271 * \param fp file descriptor to which the information is printed 1272 * \param key EC_KEY object 1273 * \param off line offset 1274 * \return 1 on success and 0 if an error occurred 1275 */ 1276 OSSL_DEPRECATEDIN_3_0 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); 1277 # endif /* OPENSSL_NO_STDIO */ 1278 1279 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_OpenSSL(void); 1280 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_default_method(void); 1281 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_default_method(const EC_KEY_METHOD *meth); 1282 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key); 1283 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth); 1284 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_method(ENGINE *engine); 1285 1286 /** The old name for ecdh_KDF_X9_63 1287 * The ECDH KDF specification has been mistakingly attributed to ANSI X9.62, 1288 * it is actually specified in ANSI X9.63. 1289 * This identifier is retained for backwards compatibility 1290 */ 1291 OSSL_DEPRECATEDIN_3_0 int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, 1292 const unsigned char *Z, size_t Zlen, 1293 const unsigned char *sinfo, 1294 size_t sinfolen, const EVP_MD *md); 1295 1296 OSSL_DEPRECATEDIN_3_0 int ECDH_compute_key(void *out, size_t outlen, 1297 const EC_POINT *pub_key, 1298 const EC_KEY *ecdh, 1299 void *(*KDF)(const void *in, 1300 size_t inlen, void *out, 1301 size_t *outlen)); 1302 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 1303 1304 typedef struct ECDSA_SIG_st ECDSA_SIG; 1305 1306 /** Allocates and initialize a ECDSA_SIG structure 1307 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1308 */ 1309 ECDSA_SIG *ECDSA_SIG_new(void); 1310 1311 /** frees a ECDSA_SIG structure 1312 * \param sig pointer to the ECDSA_SIG structure 1313 */ 1314 void ECDSA_SIG_free(ECDSA_SIG *sig); 1315 1316 /** i2d_ECDSA_SIG encodes content of ECDSA_SIG (note: this function modifies *pp 1317 * (*pp += length of the DER encoded signature)). 1318 * \param sig pointer to the ECDSA_SIG object 1319 * \param pp pointer to a unsigned char pointer for the output or NULL 1320 * \return the length of the DER encoded ECDSA_SIG object or a negative value 1321 * on error 1322 */ 1323 DECLARE_ASN1_ENCODE_FUNCTIONS_only(ECDSA_SIG, ECDSA_SIG) 1324 1325 /** d2i_ECDSA_SIG decodes an ECDSA signature (note: this function modifies *pp 1326 * (*pp += len)). 1327 * \param sig pointer to ECDSA_SIG pointer (may be NULL) 1328 * \param pp memory buffer with the DER encoded signature 1329 * \param len length of the buffer 1330 * \return pointer to the decoded ECDSA_SIG structure (or NULL) 1331 */ 1332 1333 /** Accessor for r and s fields of ECDSA_SIG 1334 * \param sig pointer to ECDSA_SIG structure 1335 * \param pr pointer to BIGNUM pointer for r (may be NULL) 1336 * \param ps pointer to BIGNUM pointer for s (may be NULL) 1337 */ 1338 void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); 1339 1340 /** Accessor for r field of ECDSA_SIG 1341 * \param sig pointer to ECDSA_SIG structure 1342 */ 1343 const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig); 1344 1345 /** Accessor for s field of ECDSA_SIG 1346 * \param sig pointer to ECDSA_SIG structure 1347 */ 1348 const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig); 1349 1350 /** Setter for r and s fields of ECDSA_SIG 1351 * \param sig pointer to ECDSA_SIG structure 1352 * \param r pointer to BIGNUM for r 1353 * \param s pointer to BIGNUM for s 1354 */ 1355 int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s); 1356 1357 # ifndef OPENSSL_NO_DEPRECATED_3_0 1358 /** Computes the ECDSA signature of the given hash value using 1359 * the supplied private key and returns the created signature. 1360 * \param dgst pointer to the hash value 1361 * \param dgst_len length of the hash value 1362 * \param eckey EC_KEY object containing a private EC key 1363 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1364 */ 1365 OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst, 1366 int dgst_len, EC_KEY *eckey); 1367 1368 /** Computes ECDSA signature of a given hash value using the supplied 1369 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1370 * \param dgst pointer to the hash value to sign 1371 * \param dgstlen length of the hash value 1372 * \param kinv BIGNUM with a pre-computed inverse k (optional) 1373 * \param rp BIGNUM with a pre-computed rp value (optional), 1374 * see ECDSA_sign_setup 1375 * \param eckey EC_KEY object containing a private EC key 1376 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1377 */ 1378 OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, 1379 int dgstlen, const BIGNUM *kinv, 1380 const BIGNUM *rp, EC_KEY *eckey); 1381 1382 /** Verifies that the supplied signature is a valid ECDSA 1383 * signature of the supplied hash value using the supplied public key. 1384 * \param dgst pointer to the hash value 1385 * \param dgst_len length of the hash value 1386 * \param sig ECDSA_SIG structure 1387 * \param eckey EC_KEY object containing a public EC key 1388 * \return 1 if the signature is valid, 0 if the signature is invalid 1389 * and -1 on error 1390 */ 1391 OSSL_DEPRECATEDIN_3_0 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, 1392 const ECDSA_SIG *sig, EC_KEY *eckey); 1393 1394 /** Precompute parts of the signing operation 1395 * \param eckey EC_KEY object containing a private EC key 1396 * \param ctx BN_CTX object (optional) 1397 * \param kinv BIGNUM pointer for the inverse of k 1398 * \param rp BIGNUM pointer for x coordinate of k * generator 1399 * \return 1 on success and 0 otherwise 1400 */ 1401 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, 1402 BIGNUM **kinv, BIGNUM **rp); 1403 1404 /** Computes ECDSA signature of a given hash value using the supplied 1405 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1406 * \param type this parameter is ignored 1407 * \param dgst pointer to the hash value to sign 1408 * \param dgstlen length of the hash value 1409 * \param sig memory for the DER encoded created signature 1410 * \param siglen pointer to the length of the returned signature 1411 * \param eckey EC_KEY object containing a private EC key 1412 * \return 1 on success and 0 otherwise 1413 */ 1414 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign(int type, const unsigned char *dgst, 1415 int dgstlen, unsigned char *sig, 1416 unsigned int *siglen, EC_KEY *eckey); 1417 1418 /** Computes ECDSA signature of a given hash value using the supplied 1419 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1420 * \param type this parameter is ignored 1421 * \param dgst pointer to the hash value to sign 1422 * \param dgstlen length of the hash value 1423 * \param sig buffer to hold the DER encoded signature 1424 * \param siglen pointer to the length of the returned signature 1425 * \param kinv BIGNUM with a pre-computed inverse k (optional) 1426 * \param rp BIGNUM with a pre-computed rp value (optional), 1427 * see ECDSA_sign_setup 1428 * \param eckey EC_KEY object containing a private EC key 1429 * \return 1 on success and 0 otherwise 1430 */ 1431 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_ex(int type, const unsigned char *dgst, 1432 int dgstlen, unsigned char *sig, 1433 unsigned int *siglen, const BIGNUM *kinv, 1434 const BIGNUM *rp, EC_KEY *eckey); 1435 1436 /** Verifies that the given signature is valid ECDSA signature 1437 * of the supplied hash value using the specified public key. 1438 * \param type this parameter is ignored 1439 * \param dgst pointer to the hash value 1440 * \param dgstlen length of the hash value 1441 * \param sig pointer to the DER encoded signature 1442 * \param siglen length of the DER encoded signature 1443 * \param eckey EC_KEY object containing a public EC key 1444 * \return 1 if the signature is valid, 0 if the signature is invalid 1445 * and -1 on error 1446 */ 1447 OSSL_DEPRECATEDIN_3_0 int ECDSA_verify(int type, const unsigned char *dgst, 1448 int dgstlen, const unsigned char *sig, 1449 int siglen, EC_KEY *eckey); 1450 1451 /** Returns the maximum length of the DER encoded signature 1452 * \param eckey EC_KEY object 1453 * \return numbers of bytes required for the DER encoded signature 1454 */ 1455 OSSL_DEPRECATEDIN_3_0 int ECDSA_size(const EC_KEY *eckey); 1456 1457 /********************************************************************/ 1458 /* EC_KEY_METHOD constructors, destructors, writers and accessors */ 1459 /********************************************************************/ 1460 1461 OSSL_DEPRECATEDIN_3_0 EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth); 1462 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_free(EC_KEY_METHOD *meth); 1463 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_init 1464 (EC_KEY_METHOD *meth, 1465 int (*init)(EC_KEY *key), 1466 void (*finish)(EC_KEY *key), 1467 int (*copy)(EC_KEY *dest, const EC_KEY *src), 1468 int (*set_group)(EC_KEY *key, const EC_GROUP *grp), 1469 int (*set_private)(EC_KEY *key, const BIGNUM *priv_key), 1470 int (*set_public)(EC_KEY *key, const EC_POINT *pub_key)); 1471 1472 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth, 1473 int (*keygen)(EC_KEY *key)); 1474 1475 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_compute_key 1476 (EC_KEY_METHOD *meth, 1477 int (*ckey)(unsigned char **psec, size_t *pseclen, 1478 const EC_POINT *pub_key, const EC_KEY *ecdh)); 1479 1480 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_sign 1481 (EC_KEY_METHOD *meth, 1482 int (*sign)(int type, const unsigned char *dgst, 1483 int dlen, unsigned char *sig, 1484 unsigned int *siglen, 1485 const BIGNUM *kinv, const BIGNUM *r, 1486 EC_KEY *eckey), 1487 int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, 1488 BIGNUM **kinvp, BIGNUM **rp), 1489 ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, 1490 int dgst_len, 1491 const BIGNUM *in_kinv, 1492 const BIGNUM *in_r, 1493 EC_KEY *eckey)); 1494 1495 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_verify 1496 (EC_KEY_METHOD *meth, 1497 int (*verify)(int type, const unsigned 1498 char *dgst, int dgst_len, 1499 const unsigned char *sigbuf, 1500 int sig_len, EC_KEY *eckey), 1501 int (*verify_sig)(const unsigned char *dgst, 1502 int dgst_len, const ECDSA_SIG *sig, 1503 EC_KEY *eckey)); 1504 1505 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_init 1506 (const EC_KEY_METHOD *meth, 1507 int (**pinit)(EC_KEY *key), 1508 void (**pfinish)(EC_KEY *key), 1509 int (**pcopy)(EC_KEY *dest, const EC_KEY *src), 1510 int (**pset_group)(EC_KEY *key, const EC_GROUP *grp), 1511 int (**pset_private)(EC_KEY *key, const BIGNUM *priv_key), 1512 int (**pset_public)(EC_KEY *key, const EC_POINT *pub_key)); 1513 1514 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_keygen 1515 (const EC_KEY_METHOD *meth, int (**pkeygen)(EC_KEY *key)); 1516 1517 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_compute_key 1518 (const EC_KEY_METHOD *meth, 1519 int (**pck)(unsigned char **psec, 1520 size_t *pseclen, 1521 const EC_POINT *pub_key, 1522 const EC_KEY *ecdh)); 1523 1524 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_sign 1525 (const EC_KEY_METHOD *meth, 1526 int (**psign)(int type, const unsigned char *dgst, 1527 int dlen, unsigned char *sig, 1528 unsigned int *siglen, 1529 const BIGNUM *kinv, const BIGNUM *r, 1530 EC_KEY *eckey), 1531 int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, 1532 BIGNUM **kinvp, BIGNUM **rp), 1533 ECDSA_SIG *(**psign_sig)(const unsigned char *dgst, 1534 int dgst_len, 1535 const BIGNUM *in_kinv, 1536 const BIGNUM *in_r, 1537 EC_KEY *eckey)); 1538 1539 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_verify 1540 (const EC_KEY_METHOD *meth, 1541 int (**pverify)(int type, const unsigned 1542 char *dgst, int dgst_len, 1543 const unsigned char *sigbuf, 1544 int sig_len, EC_KEY *eckey), 1545 int (**pverify_sig)(const unsigned char *dgst, 1546 int dgst_len, 1547 const ECDSA_SIG *sig, 1548 EC_KEY *eckey)); 1549 # endif /* OPENSSL_NO_DEPRECATED_3_0 */ 1550 1551 # define EVP_EC_gen(curve) \ 1552 EVP_PKEY_Q_keygen(NULL, NULL, "EC", (char *)(strstr(curve, ""))) 1553 /* strstr is used to enable type checking for the variadic string arg */ 1554 # define ECParameters_dup(x) ASN1_dup_of(EC_KEY, i2d_ECParameters, \ 1555 d2i_ECParameters, x) 1556 1557 # ifndef __cplusplus 1558 # if defined(__SUNPRO_C) 1559 # if __SUNPRO_C >= 0x520 1560 # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) 1561 # endif 1562 # endif 1563 # endif 1564 1565 # endif 1566 # ifdef __cplusplus 1567 } 1568 # endif 1569 #endif 1570