Where Online Learning is simpler!
The C and C++ Include Header Files
cat -n /usr/include/openssl/ec.h
1 /* 2 * Copyright 2002-2023 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_STDIO 92 #include <stdio.h> 93 #endif 94 #ifndef OPENSSL_NO_EC 95 #include <openssl/asn1.h> 96 #include <openssl/symhacks.h> 97 #ifndef OPENSSL_NO_DEPRECATED_1_1_0 98 #include <openssl/bn.h> 99 #endif 100 #include <openssl/ecerr.h> 101 102 #ifndef OPENSSL_ECC_MAX_FIELD_BITS 103 #define OPENSSL_ECC_MAX_FIELD_BITS 661 104 #endif 105 106 #include <openssl/params.h> 107 #ifndef OPENSSL_NO_DEPRECATED_3_0 108 typedef struct ec_method_st EC_METHOD; 109 #endif 110 typedef struct ec_group_st EC_GROUP; 111 typedef struct ec_point_st EC_POINT; 112 typedef struct ecpk_parameters_st ECPKPARAMETERS; 113 typedef struct ec_parameters_st ECPARAMETERS; 114 115 /********************************************************************/ 116 /* EC_METHODs for curves over GF(p) */ 117 /********************************************************************/ 118 119 #ifndef OPENSSL_NO_DEPRECATED_3_0 120 /** Returns the basic GFp ec methods which provides the basis for the 121 * optimized methods. 122 * \return EC_METHOD object 123 */ 124 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_simple_method(void); 125 126 /** Returns GFp methods using montgomery multiplication. 127 * \return EC_METHOD object 128 */ 129 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_mont_method(void); 130 131 /** Returns GFp methods using optimized methods for NIST recommended curves 132 * \return EC_METHOD object 133 */ 134 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nist_method(void); 135 136 #ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 137 /** Returns 64-bit optimized methods for nistp224 138 * \return EC_METHOD object 139 */ 140 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp224_method(void); 141 142 /** Returns 64-bit optimized methods for nistp256 143 * \return EC_METHOD object 144 */ 145 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp256_method(void); 146 147 /** Returns 64-bit optimized methods for nistp521 148 * \return EC_METHOD object 149 */ 150 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp521_method(void); 151 #endif /* OPENSSL_NO_EC_NISTP_64_GCC_128 */ 152 153 #ifndef OPENSSL_NO_EC2M 154 /********************************************************************/ 155 /* EC_METHOD for curves over GF(2^m) */ 156 /********************************************************************/ 157 158 /** Returns the basic GF2m ec method 159 * \return EC_METHOD object 160 */ 161 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GF2m_simple_method(void); 162 163 #endif 164 165 /********************************************************************/ 166 /* EC_GROUP functions */ 167 /********************************************************************/ 168 169 /** 170 * Creates a new EC_GROUP object 171 * \param meth EC_METHOD to use 172 * \return newly created EC_GROUP object or NULL in case of an error. 173 */ 174 OSSL_DEPRECATEDIN_3_0 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); 175 176 /** Clears and frees a EC_GROUP object 177 * \param group EC_GROUP object to be cleared and freed. 178 */ 179 OSSL_DEPRECATEDIN_3_0 void EC_GROUP_clear_free(EC_GROUP *group); 180 181 /** Returns the EC_METHOD of the EC_GROUP object. 182 * \param group EC_GROUP object 183 * \return EC_METHOD used in this EC_GROUP object. 184 */ 185 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); 186 187 /** Returns the field type of the EC_METHOD. 188 * \param meth EC_METHOD object 189 * \return NID of the underlying field type OID. 190 */ 191 OSSL_DEPRECATEDIN_3_0 int EC_METHOD_get_field_type(const EC_METHOD *meth); 192 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 193 194 /** Frees a EC_GROUP object 195 * \param group EC_GROUP object to be freed. 196 */ 197 void EC_GROUP_free(EC_GROUP *group); 198 199 /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. 200 * \param dst destination EC_GROUP object 201 * \param src source EC_GROUP object 202 * \return 1 on success and 0 if an error occurred. 203 */ 204 int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); 205 206 /** Creates a new EC_GROUP object and copies the content 207 * form src to the newly created EC_KEY object 208 * \param src source EC_GROUP object 209 * \return newly created EC_GROUP object or NULL in case of an error. 210 */ 211 EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); 212 213 /** Sets the generator and its order/cofactor of a EC_GROUP object. 214 * \param group EC_GROUP object 215 * \param generator EC_POINT object with the generator. 216 * \param order the order of the group generated by the generator. 217 * \param cofactor the index of the sub-group generated by the generator 218 * in the group of all points on the elliptic curve. 219 * \return 1 on success and 0 if an error occurred 220 */ 221 int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, 222 const BIGNUM *order, const BIGNUM *cofactor); 223 224 /** Returns the generator of a EC_GROUP object. 225 * \param group EC_GROUP object 226 * \return the currently used generator (possibly NULL). 227 */ 228 const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); 229 230 /** Returns the montgomery data for order(Generator) 231 * \param group EC_GROUP object 232 * \return the currently used montgomery data (possibly NULL). 233 */ 234 BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group); 235 236 /** Gets the order of a EC_GROUP 237 * \param group EC_GROUP object 238 * \param order BIGNUM to which the order is copied 239 * \param ctx unused 240 * \return 1 on success and 0 if an error occurred 241 */ 242 int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); 243 244 /** Gets the order of an EC_GROUP 245 * \param group EC_GROUP object 246 * \return the group order 247 */ 248 const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); 249 250 /** Gets the number of bits of the order of an EC_GROUP 251 * \param group EC_GROUP object 252 * \return number of bits of group order. 253 */ 254 int EC_GROUP_order_bits(const EC_GROUP *group); 255 256 /** Gets the cofactor of a EC_GROUP 257 * \param group EC_GROUP object 258 * \param cofactor BIGNUM to which the cofactor is copied 259 * \param ctx unused 260 * \return 1 on success and 0 if an error occurred 261 */ 262 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, 263 BN_CTX *ctx); 264 265 /** Gets the cofactor of an EC_GROUP 266 * \param group EC_GROUP object 267 * \return the group cofactor 268 */ 269 const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group); 270 271 /** Sets the name of a EC_GROUP object 272 * \param group EC_GROUP object 273 * \param nid NID of the curve name OID 274 */ 275 void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); 276 277 /** Returns the curve name of a EC_GROUP object 278 * \param group EC_GROUP object 279 * \return NID of the curve name OID or 0 if not set. 280 */ 281 int EC_GROUP_get_curve_name(const EC_GROUP *group); 282 283 /** Gets the field of an EC_GROUP 284 * \param group EC_GROUP object 285 * \return the group field 286 */ 287 const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group); 288 289 /** Returns the field type of the EC_GROUP. 290 * \param group EC_GROUP object 291 * \return NID of the underlying field type OID. 292 */ 293 int EC_GROUP_get_field_type(const EC_GROUP *group); 294 295 void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); 296 int EC_GROUP_get_asn1_flag(const EC_GROUP *group); 297 298 void EC_GROUP_set_point_conversion_form(EC_GROUP *group, 299 point_conversion_form_t form); 300 point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); 301 302 unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x); 303 size_t EC_GROUP_get_seed_len(const EC_GROUP *); 304 size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); 305 306 /** Sets the parameters of an ec curve defined by y^2 = x^3 + a*x + b (for GFp) 307 * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m) 308 * \param group EC_GROUP object 309 * \param p BIGNUM with the prime number (GFp) or the polynomial 310 * defining the underlying field (GF2m) 311 * \param a BIGNUM with parameter a of the equation 312 * \param b BIGNUM with parameter b of the equation 313 * \param ctx BN_CTX object (optional) 314 * \return 1 on success and 0 if an error occurred 315 */ 316 int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, 317 const BIGNUM *b, BN_CTX *ctx); 318 319 /** Gets the parameters of the ec curve defined by y^2 = x^3 + a*x + b (for GFp) 320 * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m) 321 * \param group EC_GROUP object 322 * \param p BIGNUM with the prime number (GFp) or the polynomial 323 * defining the underlying field (GF2m) 324 * \param a BIGNUM for parameter a of the equation 325 * \param b BIGNUM for parameter b of the equation 326 * \param ctx BN_CTX object (optional) 327 * \return 1 on success and 0 if an error occurred 328 */ 329 int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, 330 BN_CTX *ctx); 331 332 #ifndef OPENSSL_NO_DEPRECATED_3_0 333 /** Sets the parameters of an ec curve. Synonym for EC_GROUP_set_curve 334 * \param group EC_GROUP object 335 * \param p BIGNUM with the prime number (GFp) or the polynomial 336 * defining the underlying field (GF2m) 337 * \param a BIGNUM with parameter a of the equation 338 * \param b BIGNUM with parameter b of the equation 339 * \param ctx BN_CTX object (optional) 340 * \return 1 on success and 0 if an error occurred 341 */ 342 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GFp(EC_GROUP *group, 343 const BIGNUM *p, 344 const BIGNUM *a, 345 const BIGNUM *b, 346 BN_CTX *ctx); 347 348 /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve 349 * \param group EC_GROUP object 350 * \param p BIGNUM with the prime number (GFp) or the polynomial 351 * defining the underlying field (GF2m) 352 * \param a BIGNUM for parameter a of the equation 353 * \param b BIGNUM for parameter b of the equation 354 * \param ctx BN_CTX object (optional) 355 * \return 1 on success and 0 if an error occurred 356 */ 357 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GFp(const EC_GROUP *group, 358 BIGNUM *p, 359 BIGNUM *a, BIGNUM *b, 360 BN_CTX *ctx); 361 362 #ifndef OPENSSL_NO_EC2M 363 /** Sets the parameter of an ec curve. Synonym for EC_GROUP_set_curve 364 * \param group EC_GROUP object 365 * \param p BIGNUM with the prime number (GFp) or the polynomial 366 * defining the underlying field (GF2m) 367 * \param a BIGNUM with parameter a of the equation 368 * \param b BIGNUM with parameter b of the equation 369 * \param ctx BN_CTX object (optional) 370 * \return 1 on success and 0 if an error occurred 371 */ 372 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GF2m(EC_GROUP *group, 373 const BIGNUM *p, 374 const BIGNUM *a, 375 const BIGNUM *b, 376 BN_CTX *ctx); 377 378 /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve 379 * \param group EC_GROUP object 380 * \param p BIGNUM with the prime number (GFp) or the polynomial 381 * defining the underlying field (GF2m) 382 * \param a BIGNUM for parameter a of the equation 383 * \param b BIGNUM for parameter b of the equation 384 * \param ctx BN_CTX object (optional) 385 * \return 1 on success and 0 if an error occurred 386 */ 387 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, 388 BIGNUM *p, 389 BIGNUM *a, BIGNUM *b, 390 BN_CTX *ctx); 391 #endif /* OPENSSL_NO_EC2M */ 392 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 393 394 /** Returns the number of bits needed to represent a field element 395 * \param group EC_GROUP object 396 * \return number of bits needed to represent a field element 397 */ 398 int EC_GROUP_get_degree(const EC_GROUP *group); 399 400 /** Checks whether the parameter in the EC_GROUP define a valid ec group 401 * \param group EC_GROUP object 402 * \param ctx BN_CTX object (optional) 403 * \return 1 if group is a valid ec group and 0 otherwise 404 */ 405 int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); 406 407 /** Checks whether the discriminant of the elliptic curve is zero or not 408 * \param group EC_GROUP object 409 * \param ctx BN_CTX object (optional) 410 * \return 1 if the discriminant is not zero and 0 otherwise 411 */ 412 int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); 413 414 /** Compares two EC_GROUP objects 415 * \param a first EC_GROUP object 416 * \param b second EC_GROUP object 417 * \param ctx BN_CTX object (optional) 418 * \return 0 if the groups are equal, 1 if not, or -1 on error 419 */ 420 int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); 421 422 /* 423 * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after 424 * choosing an appropriate EC_METHOD 425 */ 426 427 /** Creates a new EC_GROUP object with the specified parameters defined 428 * over GFp (defined by the equation y^2 = x^3 + a*x + b) 429 * \param p BIGNUM with the prime number 430 * \param a BIGNUM with the parameter a of the equation 431 * \param b BIGNUM with the parameter b of the equation 432 * \param ctx BN_CTX object (optional) 433 * \return newly created EC_GROUP object with the specified parameters 434 */ 435 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, 436 const BIGNUM *b, BN_CTX *ctx); 437 #ifndef OPENSSL_NO_EC2M 438 /** Creates a new EC_GROUP object with the specified parameters defined 439 * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) 440 * \param p BIGNUM with the polynomial defining the underlying field 441 * \param a BIGNUM with the parameter a of the equation 442 * \param b BIGNUM with the parameter b of the equation 443 * \param ctx BN_CTX object (optional) 444 * \return newly created EC_GROUP object with the specified parameters 445 */ 446 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, 447 const BIGNUM *b, BN_CTX *ctx); 448 #endif 449 450 /** 451 * Creates a EC_GROUP object with a curve specified by parameters. 452 * The parameters may be explicit or a named curve, 453 * \param params A list of parameters describing the group. 454 * \param libctx The associated library context or NULL for the default 455 * context 456 * \param propq A property query string 457 * \return newly created EC_GROUP object with specified parameters or NULL 458 * if an error occurred 459 */ 460 EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[], 461 OSSL_LIB_CTX *libctx, const char *propq); 462 463 /** 464 * Creates an OSSL_PARAM array with the parameters describing the given 465 * EC_GROUP. 466 * The resulting parameters may contain an explicit or a named curve depending 467 * on the EC_GROUP. 468 * \param group pointer to the EC_GROUP object 469 * \param libctx The associated library context or NULL for the default 470 * context 471 * \param propq A property query string 472 * \param bnctx BN_CTX object (optional) 473 * \return newly created OSSL_PARAM array with the parameters 474 * describing the given EC_GROUP or NULL if an error occurred 475 */ 476 OSSL_PARAM *EC_GROUP_to_params(const EC_GROUP *group, OSSL_LIB_CTX *libctx, 477 const char *propq, BN_CTX *bnctx); 478 479 /** 480 * Creates a EC_GROUP object with a curve specified by a NID 481 * \param libctx The associated library context or NULL for the default 482 * context 483 * \param propq A property query string 484 * \param nid NID of the OID of the curve name 485 * \return newly created EC_GROUP object with specified curve or NULL 486 * if an error occurred 487 */ 488 EC_GROUP *EC_GROUP_new_by_curve_name_ex(OSSL_LIB_CTX *libctx, const char *propq, 489 int nid); 490 491 /** 492 * Creates a EC_GROUP object with a curve specified by a NID. Same as 493 * EC_GROUP_new_by_curve_name_ex but the libctx and propq are always 494 * NULL. 495 * \param nid NID of the OID of the curve name 496 * \return newly created EC_GROUP object with specified curve or NULL 497 * if an error occurred 498 */ 499 EC_GROUP *EC_GROUP_new_by_curve_name(int nid); 500 501 /** Creates a new EC_GROUP object from an ECPARAMETERS object 502 * \param params pointer to the ECPARAMETERS object 503 * \return newly created EC_GROUP object with specified curve or NULL 504 * if an error occurred 505 */ 506 EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params); 507 508 /** Creates an ECPARAMETERS object for the given EC_GROUP object. 509 * \param group pointer to the EC_GROUP object 510 * \param params pointer to an existing ECPARAMETERS object or NULL 511 * \return pointer to the new ECPARAMETERS object or NULL 512 * if an error occurred. 513 */ 514 ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group, 515 ECPARAMETERS *params); 516 517 /** Creates a new EC_GROUP object from an ECPKPARAMETERS object 518 * \param params pointer to an existing ECPKPARAMETERS object, or NULL 519 * \return newly created EC_GROUP object with specified curve, or NULL 520 * if an error occurred 521 */ 522 EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params); 523 524 /** Creates an ECPKPARAMETERS object for the given EC_GROUP object. 525 * \param group pointer to the EC_GROUP object 526 * \param params pointer to an existing ECPKPARAMETERS object or NULL 527 * \return pointer to the new ECPKPARAMETERS object or NULL 528 * if an error occurred. 529 */ 530 ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group, 531 ECPKPARAMETERS *params); 532 533 /********************************************************************/ 534 /* handling of internal curves */ 535 /********************************************************************/ 536 537 typedef struct { 538 int nid; 539 const char *comment; 540 } EC_builtin_curve; 541 542 /* 543 * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all 544 * available curves or zero if a error occurred. In case r is not zero, 545 * nitems EC_builtin_curve structures are filled with the data of the first 546 * nitems internal groups 547 */ 548 size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); 549 550 const char *EC_curve_nid2nist(int nid); 551 int EC_curve_nist2nid(const char *name); 552 int EC_GROUP_check_named_curve(const EC_GROUP *group, int nist_only, 553 BN_CTX *ctx); 554 555 /********************************************************************/ 556 /* EC_POINT functions */ 557 /********************************************************************/ 558 559 /** Creates a new EC_POINT object for the specified EC_GROUP 560 * \param group EC_GROUP the underlying EC_GROUP object 561 * \return newly created EC_POINT object or NULL if an error occurred 562 */ 563 EC_POINT *EC_POINT_new(const EC_GROUP *group); 564 565 /** Frees a EC_POINT object 566 * \param point EC_POINT object to be freed 567 */ 568 void EC_POINT_free(EC_POINT *point); 569 570 /** Clears and frees a EC_POINT object 571 * \param point EC_POINT object to be cleared and freed 572 */ 573 void EC_POINT_clear_free(EC_POINT *point); 574 575 /** Copies EC_POINT object 576 * \param dst destination EC_POINT object 577 * \param src source EC_POINT object 578 * \return 1 on success and 0 if an error occurred 579 */ 580 int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); 581 582 /** Creates a new EC_POINT object and copies the content of the supplied 583 * EC_POINT 584 * \param src source EC_POINT object 585 * \param group underlying the EC_GROUP object 586 * \return newly created EC_POINT object or NULL if an error occurred 587 */ 588 EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); 589 590 /** Sets a point to infinity (neutral element) 591 * \param group underlying EC_GROUP object 592 * \param point EC_POINT to set to infinity 593 * \return 1 on success and 0 if an error occurred 594 */ 595 int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); 596 597 #ifndef OPENSSL_NO_DEPRECATED_3_0 598 /** Returns the EC_METHOD used in EC_POINT object 599 * \param point EC_POINT object 600 * \return the EC_METHOD used 601 */ 602 OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); 603 604 /** Sets the jacobian projective coordinates of a EC_POINT over GFp 605 * \param group underlying EC_GROUP object 606 * \param p EC_POINT object 607 * \param x BIGNUM with the x-coordinate 608 * \param y BIGNUM with the y-coordinate 609 * \param z BIGNUM with the z-coordinate 610 * \param ctx BN_CTX object (optional) 611 * \return 1 on success and 0 if an error occurred 612 */ 613 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, 614 const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, 615 BN_CTX *ctx); 616 617 /** Gets the jacobian projective coordinates of a EC_POINT over GFp 618 * \param group underlying EC_GROUP object 619 * \param p EC_POINT object 620 * \param x BIGNUM for the x-coordinate 621 * \param y BIGNUM for the y-coordinate 622 * \param z BIGNUM for the z-coordinate 623 * \param ctx BN_CTX object (optional) 624 * \return 1 on success and 0 if an error occurred 625 */ 626 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, const EC_POINT *p, 627 BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); 628 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 629 630 /** Sets the affine coordinates of an EC_POINT 631 * \param group underlying EC_GROUP object 632 * \param p EC_POINT object 633 * \param x BIGNUM with the x-coordinate 634 * \param y BIGNUM with the y-coordinate 635 * \param ctx BN_CTX object (optional) 636 * \return 1 on success and 0 if an error occurred 637 */ 638 int EC_POINT_set_affine_coordinates(const EC_GROUP *group, EC_POINT *p, 639 const BIGNUM *x, const BIGNUM *y, 640 BN_CTX *ctx); 641 642 /** Gets the affine coordinates of an EC_POINT. 643 * \param group underlying EC_GROUP object 644 * \param p EC_POINT object 645 * \param x BIGNUM for the x-coordinate 646 * \param y BIGNUM for the y-coordinate 647 * \param ctx BN_CTX object (optional) 648 * \return 1 on success and 0 if an error occurred 649 */ 650 int EC_POINT_get_affine_coordinates(const EC_GROUP *group, const EC_POINT *p, 651 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 652 653 #ifndef OPENSSL_NO_DEPRECATED_3_0 654 /** Sets the affine coordinates of an EC_POINT. A synonym of 655 * EC_POINT_set_affine_coordinates 656 * \param group underlying EC_GROUP object 657 * \param p EC_POINT object 658 * \param x BIGNUM with the x-coordinate 659 * \param y BIGNUM with the y-coordinate 660 * \param ctx BN_CTX object (optional) 661 * \return 1 on success and 0 if an error occurred 662 */ 663 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, 664 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 665 666 /** Gets the affine coordinates of an EC_POINT. A synonym of 667 * EC_POINT_get_affine_coordinates 668 * \param group underlying EC_GROUP object 669 * \param p EC_POINT object 670 * \param x BIGNUM for the x-coordinate 671 * \param y BIGNUM for the y-coordinate 672 * \param ctx BN_CTX object (optional) 673 * \return 1 on success and 0 if an error occurred 674 */ 675 OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, const EC_POINT *p, 676 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 677 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 678 679 /** Sets the x9.62 compressed coordinates of a EC_POINT 680 * \param group underlying EC_GROUP object 681 * \param p EC_POINT object 682 * \param x BIGNUM with x-coordinate 683 * \param y_bit integer with the y-Bit (either 0 or 1) 684 * \param ctx BN_CTX object (optional) 685 * \return 1 on success and 0 if an error occurred 686 */ 687 int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *p, 688 const BIGNUM *x, int y_bit, 689 BN_CTX *ctx); 690 691 #ifndef OPENSSL_NO_DEPRECATED_3_0 692 /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of 693 * EC_POINT_set_compressed_coordinates 694 * \param group underlying EC_GROUP object 695 * \param p EC_POINT object 696 * \param x BIGNUM with x-coordinate 697 * \param y_bit integer with the y-Bit (either 0 or 1) 698 * \param ctx BN_CTX object (optional) 699 * \return 1 on success and 0 if an error occurred 700 */ 701 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, 702 const BIGNUM *x, int y_bit, BN_CTX *ctx); 703 #ifndef OPENSSL_NO_EC2M 704 /** Sets the affine coordinates of an EC_POINT. A synonym of 705 * EC_POINT_set_affine_coordinates 706 * \param group underlying EC_GROUP object 707 * \param p EC_POINT object 708 * \param x BIGNUM with the x-coordinate 709 * \param y BIGNUM with the y-coordinate 710 * \param ctx BN_CTX object (optional) 711 * \return 1 on success and 0 if an error occurred 712 */ 713 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, 714 const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 715 716 /** Gets the affine coordinates of an EC_POINT. A synonym of 717 * EC_POINT_get_affine_coordinates 718 * \param group underlying EC_GROUP object 719 * \param p EC_POINT object 720 * \param x BIGNUM for the x-coordinate 721 * \param y BIGNUM for the y-coordinate 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_get_affine_coordinates_GF2m(const EC_GROUP *group, const EC_POINT *p, 726 BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 727 728 /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of 729 * EC_POINT_set_compressed_coordinates 730 * \param group underlying EC_GROUP object 731 * \param p EC_POINT object 732 * \param x BIGNUM with x-coordinate 733 * \param y_bit integer with the y-Bit (either 0 or 1) 734 * \param ctx BN_CTX object (optional) 735 * \return 1 on success and 0 if an error occurred 736 */ 737 OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, 738 const BIGNUM *x, int y_bit, BN_CTX *ctx); 739 #endif 740 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 741 742 /** Encodes a EC_POINT object to a octet string 743 * \param group underlying EC_GROUP object 744 * \param p EC_POINT object 745 * \param form point conversion form 746 * \param buf memory buffer for the result. If NULL the function returns 747 * required buffer size. 748 * \param len length of the memory buffer 749 * \param ctx BN_CTX object (optional) 750 * \return the length of the encoded octet string or 0 if an error occurred 751 */ 752 size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, 753 point_conversion_form_t form, 754 unsigned char *buf, size_t len, BN_CTX *ctx); 755 756 /** Decodes a EC_POINT from a octet string 757 * \param group underlying EC_GROUP object 758 * \param p EC_POINT object 759 * \param buf memory buffer with the encoded ec point 760 * \param len length of the encoded ec point 761 * \param ctx BN_CTX object (optional) 762 * \return 1 on success and 0 if an error occurred 763 */ 764 int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, 765 const unsigned char *buf, size_t len, BN_CTX *ctx); 766 767 /** Encodes an EC_POINT object to an allocated octet string 768 * \param group underlying EC_GROUP object 769 * \param point EC_POINT object 770 * \param form point conversion form 771 * \param pbuf returns pointer to allocated buffer 772 * \param ctx BN_CTX object (optional) 773 * \return the length of the encoded octet string or 0 if an error occurred 774 */ 775 size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point, 776 point_conversion_form_t form, 777 unsigned char **pbuf, BN_CTX *ctx); 778 779 /* other interfaces to point2oct/oct2point: */ 780 #ifndef OPENSSL_NO_DEPRECATED_3_0 781 OSSL_DEPRECATEDIN_3_0 BIGNUM *EC_POINT_point2bn(const EC_GROUP *, 782 const EC_POINT *, 783 point_conversion_form_t form, 784 BIGNUM *, BN_CTX *); 785 OSSL_DEPRECATEDIN_3_0 EC_POINT *EC_POINT_bn2point(const EC_GROUP *, 786 const BIGNUM *, 787 EC_POINT *, BN_CTX *); 788 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 789 790 char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, 791 point_conversion_form_t form, BN_CTX *); 792 EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, 793 EC_POINT *, BN_CTX *); 794 795 /********************************************************************/ 796 /* functions for doing EC_POINT arithmetic */ 797 /********************************************************************/ 798 799 /** Computes the sum of two EC_POINT 800 * \param group underlying EC_GROUP object 801 * \param r EC_POINT object for the result (r = a + b) 802 * \param a EC_POINT object with the first summand 803 * \param b EC_POINT object with the second summand 804 * \param ctx BN_CTX object (optional) 805 * \return 1 on success and 0 if an error occurred 806 */ 807 int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, 808 const EC_POINT *b, BN_CTX *ctx); 809 810 /** Computes the double of a EC_POINT 811 * \param group underlying EC_GROUP object 812 * \param r EC_POINT object for the result (r = 2 * a) 813 * \param a EC_POINT object 814 * \param ctx BN_CTX object (optional) 815 * \return 1 on success and 0 if an error occurred 816 */ 817 int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, 818 BN_CTX *ctx); 819 820 /** Computes the inverse of a EC_POINT 821 * \param group underlying EC_GROUP object 822 * \param a EC_POINT object to be inverted (it's used for the result as well) 823 * \param ctx BN_CTX object (optional) 824 * \return 1 on success and 0 if an error occurred 825 */ 826 int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); 827 828 /** Checks whether the point is the neutral element of the group 829 * \param group the underlying EC_GROUP object 830 * \param p EC_POINT object 831 * \return 1 if the point is the neutral element and 0 otherwise 832 */ 833 int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); 834 835 /** Checks whether the point is on the curve 836 * \param group underlying EC_GROUP object 837 * \param point EC_POINT object to check 838 * \param ctx BN_CTX object (optional) 839 * \return 1 if the point is on the curve, 0 if not, or -1 on error 840 */ 841 int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, 842 BN_CTX *ctx); 843 844 /** Compares two EC_POINTs 845 * \param group underlying EC_GROUP object 846 * \param a first EC_POINT object 847 * \param b second EC_POINT object 848 * \param ctx BN_CTX object (optional) 849 * \return 1 if the points are not equal, 0 if they are, or -1 on error 850 */ 851 int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, 852 BN_CTX *ctx); 853 854 #ifndef OPENSSL_NO_DEPRECATED_3_0 855 OSSL_DEPRECATEDIN_3_0 int EC_POINT_make_affine(const EC_GROUP *group, 856 EC_POINT *point, BN_CTX *ctx); 857 OSSL_DEPRECATEDIN_3_0 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, 858 EC_POINT *points[], BN_CTX *ctx); 859 860 /** Computes r = generator * n + sum_{i=0}^{num-1} p[i] * m[i] 861 * \param group underlying EC_GROUP object 862 * \param r EC_POINT object for the result 863 * \param n BIGNUM with the multiplier for the group generator (optional) 864 * \param num number further summands 865 * \param p array of size num of EC_POINT objects 866 * \param m array of size num of BIGNUM objects 867 * \param ctx BN_CTX object (optional) 868 * \return 1 on success and 0 if an error occurred 869 */ 870 OSSL_DEPRECATEDIN_3_0 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, 871 const BIGNUM *n, size_t num, 872 const EC_POINT *p[], const BIGNUM *m[], 873 BN_CTX *ctx); 874 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 875 876 /** Computes r = generator * n + q * m 877 * \param group underlying EC_GROUP object 878 * \param r EC_POINT object for the result 879 * \param n BIGNUM with the multiplier for the group generator (optional) 880 * \param q EC_POINT object with the first factor of the second summand 881 * \param m BIGNUM with the second factor of the second summand 882 * \param ctx BN_CTX object (optional) 883 * \return 1 on success and 0 if an error occurred 884 */ 885 int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, 886 const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); 887 888 #ifndef OPENSSL_NO_DEPRECATED_3_0 889 /** Stores multiples of generator for faster point multiplication 890 * \param group EC_GROUP object 891 * \param ctx BN_CTX object (optional) 892 * \return 1 on success and 0 if an error occurred 893 */ 894 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); 895 896 /** Reports whether a precomputation has been done 897 * \param group EC_GROUP object 898 * \return 1 if a pre-computation has been done and 0 otherwise 899 */ 900 OSSL_DEPRECATEDIN_3_0 int EC_GROUP_have_precompute_mult(const EC_GROUP *group); 901 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 902 903 /********************************************************************/ 904 /* ASN1 stuff */ 905 /********************************************************************/ 906 907 DECLARE_ASN1_ITEM(ECPKPARAMETERS) 908 DECLARE_ASN1_ALLOC_FUNCTIONS(ECPKPARAMETERS) 909 DECLARE_ASN1_ITEM(ECPARAMETERS) 910 DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS) 911 912 /* 913 * EC_GROUP_get_basis_type() returns the NID of the basis type used to 914 * represent the field elements 915 */ 916 int EC_GROUP_get_basis_type(const EC_GROUP *); 917 #ifndef OPENSSL_NO_EC2M 918 int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); 919 int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, 920 unsigned int *k2, unsigned int *k3); 921 #endif 922 923 EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); 924 int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); 925 926 #define d2i_ECPKParameters_bio(bp, x) \ 927 ASN1_d2i_bio_of(EC_GROUP, NULL, d2i_ECPKParameters, bp, x) 928 #define i2d_ECPKParameters_bio(bp, x) \ 929 ASN1_i2d_bio_of(EC_GROUP, i2d_ECPKParameters, bp, x) 930 #define d2i_ECPKParameters_fp(fp, x) \ 931 (EC_GROUP *)ASN1_d2i_fp(NULL, (d2i_of_void *)d2i_ECPKParameters, (fp), \ 932 (void **)(x)) 933 #define i2d_ECPKParameters_fp(fp, x) \ 934 ASN1_i2d_fp((i2d_of_void *)i2d_ECPKParameters, (fp), (void *)(x)) 935 936 #ifndef OPENSSL_NO_DEPRECATED_3_0 937 OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, 938 int off); 939 #ifndef OPENSSL_NO_STDIO 940 OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, 941 int off); 942 #endif 943 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 944 945 /********************************************************************/ 946 /* EC_KEY functions */ 947 /********************************************************************/ 948 949 /* some values for the encoding_flag */ 950 #define EC_PKEY_NO_PARAMETERS 0x001 951 #define EC_PKEY_NO_PUBKEY 0x002 952 953 /* some values for the flags field */ 954 #define EC_FLAG_SM2_RANGE 0x0004 955 #define EC_FLAG_COFACTOR_ECDH 0x1000 956 #define EC_FLAG_CHECK_NAMED_GROUP 0x2000 957 #define EC_FLAG_CHECK_NAMED_GROUP_NIST 0x4000 958 #define EC_FLAG_CHECK_NAMED_GROUP_MASK \ 959 (EC_FLAG_CHECK_NAMED_GROUP | EC_FLAG_CHECK_NAMED_GROUP_NIST) 960 961 /* Deprecated flags - it was using 0x01..0x02 */ 962 #define EC_FLAG_NON_FIPS_ALLOW 0x0000 963 #define EC_FLAG_FIPS_CHECKED 0x0000 964 965 #ifndef OPENSSL_NO_DEPRECATED_3_0 966 /** 967 * Creates a new EC_KEY object. 968 * \param ctx The library context for to use for this EC_KEY. May be NULL in 969 * which case the default library context is used. 970 * \return EC_KEY object or NULL if an error occurred. 971 */ 972 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_ex(OSSL_LIB_CTX *ctx, const char *propq); 973 974 /** 975 * Creates a new EC_KEY object. Same as calling EC_KEY_new_ex with a 976 * NULL library context 977 * \return EC_KEY object or NULL if an error occurred. 978 */ 979 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new(void); 980 981 OSSL_DEPRECATEDIN_3_0 int EC_KEY_get_flags(const EC_KEY *key); 982 983 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_flags(EC_KEY *key, int flags); 984 985 OSSL_DEPRECATEDIN_3_0 void EC_KEY_clear_flags(EC_KEY *key, int flags); 986 987 OSSL_DEPRECATEDIN_3_0 int EC_KEY_decoded_from_explicit_params(const EC_KEY *key); 988 989 /** 990 * Creates a new EC_KEY object using a named curve as underlying 991 * EC_GROUP object. 992 * \param ctx The library context for to use for this EC_KEY. May be NULL in 993 * which case the default library context is used. 994 * \param propq Any 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_ex(OSSL_LIB_CTX *ctx, 999 const char *propq, 1000 int nid); 1001 1002 /** 1003 * Creates a new EC_KEY object using a named curve as underlying 1004 * EC_GROUP object. Same as calling EC_KEY_new_by_curve_name_ex with a NULL 1005 * library context and property query string. 1006 * \param nid NID of the named curve. 1007 * \return EC_KEY object or NULL if an error occurred. 1008 */ 1009 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name(int nid); 1010 1011 /** Frees a EC_KEY object. 1012 * \param key EC_KEY object to be freed. 1013 */ 1014 OSSL_DEPRECATEDIN_3_0 void EC_KEY_free(EC_KEY *key); 1015 1016 /** Copies a EC_KEY object. 1017 * \param dst destination EC_KEY object 1018 * \param src src EC_KEY object 1019 * \return dst or NULL if an error occurred. 1020 */ 1021 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); 1022 1023 /** Creates a new EC_KEY object and copies the content from src to it. 1024 * \param src the source EC_KEY object 1025 * \return newly created EC_KEY object or NULL if an error occurred. 1026 */ 1027 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_dup(const EC_KEY *src); 1028 1029 /** Increases the internal reference count of a EC_KEY object. 1030 * \param key EC_KEY object 1031 * \return 1 on success and 0 if an error occurred. 1032 */ 1033 OSSL_DEPRECATEDIN_3_0 int EC_KEY_up_ref(EC_KEY *key); 1034 1035 /** Returns the ENGINE object of a EC_KEY object 1036 * \param eckey EC_KEY object 1037 * \return the ENGINE object (possibly NULL). 1038 */ 1039 OSSL_DEPRECATEDIN_3_0 ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey); 1040 1041 /** Returns the EC_GROUP object of a EC_KEY object 1042 * \param key EC_KEY object 1043 * \return the EC_GROUP object (possibly NULL). 1044 */ 1045 OSSL_DEPRECATEDIN_3_0 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); 1046 1047 /** Sets the EC_GROUP of a EC_KEY object. 1048 * \param key EC_KEY object 1049 * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY 1050 * object will use an own copy of the EC_GROUP). 1051 * \return 1 on success and 0 if an error occurred. 1052 */ 1053 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); 1054 1055 /** Returns the private key of a EC_KEY object. 1056 * \param key EC_KEY object 1057 * \return a BIGNUM with the private key (possibly NULL). 1058 */ 1059 OSSL_DEPRECATEDIN_3_0 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); 1060 1061 /** Sets the private key of a EC_KEY object. 1062 * \param key EC_KEY object 1063 * \param prv BIGNUM with the private key (note: the EC_KEY object 1064 * will use an own copy of the BIGNUM). 1065 * \return 1 on success and 0 if an error occurred. 1066 */ 1067 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); 1068 1069 /** Returns the public key of a EC_KEY object. 1070 * \param key the EC_KEY object 1071 * \return a EC_POINT object with the public key (possibly NULL) 1072 */ 1073 OSSL_DEPRECATEDIN_3_0 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); 1074 1075 /** Sets the public key of a EC_KEY object. 1076 * \param key EC_KEY object 1077 * \param pub EC_POINT object with the public key (note: the EC_KEY object 1078 * will use an own copy of the EC_POINT object). 1079 * \return 1 on success and 0 if an error occurred. 1080 */ 1081 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); 1082 1083 OSSL_DEPRECATEDIN_3_0 unsigned EC_KEY_get_enc_flags(const EC_KEY *key); 1084 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); 1085 OSSL_DEPRECATEDIN_3_0 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); 1086 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_conv_form(EC_KEY *eckey, 1087 point_conversion_form_t cform); 1088 #endif /*OPENSSL_NO_DEPRECATED_3_0 */ 1089 1090 #define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \ 1091 CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef) 1092 1093 #ifndef OPENSSL_NO_DEPRECATED_3_0 1094 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg); 1095 OSSL_DEPRECATEDIN_3_0 void *EC_KEY_get_ex_data(const EC_KEY *key, int idx); 1096 1097 /* wrapper functions for the underlying EC_GROUP object */ 1098 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); 1099 1100 /** Creates a table of pre-computed multiples of the generator to 1101 * accelerate further EC_KEY operations. 1102 * \param key EC_KEY object 1103 * \param ctx BN_CTX object (optional) 1104 * \return 1 on success and 0 if an error occurred. 1105 */ 1106 OSSL_DEPRECATEDIN_3_0 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); 1107 1108 /** Creates a new ec private (and optional a new public) key. 1109 * \param key EC_KEY object 1110 * \return 1 on success and 0 if an error occurred. 1111 */ 1112 OSSL_DEPRECATEDIN_3_0 int EC_KEY_generate_key(EC_KEY *key); 1113 1114 /** Verifies that a private and/or public key is valid. 1115 * \param key the EC_KEY object 1116 * \return 1 on success and 0 otherwise. 1117 */ 1118 OSSL_DEPRECATEDIN_3_0 int EC_KEY_check_key(const EC_KEY *key); 1119 1120 /** Indicates if an EC_KEY can be used for signing. 1121 * \param eckey the EC_KEY object 1122 * \return 1 if can sign and 0 otherwise. 1123 */ 1124 OSSL_DEPRECATEDIN_3_0 int EC_KEY_can_sign(const EC_KEY *eckey); 1125 1126 /** Sets a public key from affine coordinates performing 1127 * necessary NIST PKV tests. 1128 * \param key the EC_KEY object 1129 * \param x public key x coordinate 1130 * \param y public key y coordinate 1131 * \return 1 on success and 0 otherwise. 1132 */ 1133 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, 1134 BIGNUM *x, 1135 BIGNUM *y); 1136 1137 /** Encodes an EC_KEY public key to an allocated octet string 1138 * \param key key to encode 1139 * \param form point conversion form 1140 * \param pbuf returns pointer to allocated buffer 1141 * \param ctx BN_CTX object (optional) 1142 * \return the length of the encoded octet string or 0 if an error occurred 1143 */ 1144 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_key2buf(const EC_KEY *key, 1145 point_conversion_form_t form, 1146 unsigned char **pbuf, BN_CTX *ctx); 1147 1148 /** Decodes a EC_KEY public key from a octet string 1149 * \param key key to decode 1150 * \param buf memory buffer with the encoded ec point 1151 * \param len length of the encoded ec point 1152 * \param ctx BN_CTX object (optional) 1153 * \return 1 on success and 0 if an error occurred 1154 */ 1155 1156 OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf, 1157 size_t len, BN_CTX *ctx); 1158 1159 /** Decodes an EC_KEY private key from an octet string 1160 * \param key key to decode 1161 * \param buf memory buffer with the encoded private key 1162 * \param len length of the encoded key 1163 * \return 1 on success and 0 if an error occurred 1164 */ 1165 1166 OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2priv(EC_KEY *key, const unsigned char *buf, 1167 size_t len); 1168 1169 /** Encodes a EC_KEY private key to an octet string 1170 * \param key key to encode 1171 * \param buf memory buffer for the result. If NULL the function returns 1172 * required buffer size. 1173 * \param len length of the memory buffer 1174 * \return the length of the encoded octet string or 0 if an error occurred 1175 */ 1176 1177 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2oct(const EC_KEY *key, 1178 unsigned char *buf, size_t len); 1179 1180 /** Encodes an EC_KEY private key to an allocated octet string 1181 * \param eckey key to encode 1182 * \param pbuf returns pointer to allocated buffer 1183 * \return the length of the encoded octet string or 0 if an error occurred 1184 */ 1185 OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2buf(const EC_KEY *eckey, 1186 unsigned char **pbuf); 1187 1188 /********************************************************************/ 1189 /* de- and encoding functions for SEC1 ECPrivateKey */ 1190 /********************************************************************/ 1191 1192 /** Decodes a private key from a memory buffer. 1193 * \param key a pointer to a EC_KEY object which should be used (or NULL) 1194 * \param in pointer to memory with the DER encoded private key 1195 * \param len length of the DER encoded private key 1196 * \return the decoded private key or NULL if an error occurred. 1197 */ 1198 OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECPrivateKey(EC_KEY **key, 1199 const unsigned char **in, 1200 long len); 1201 1202 /** Encodes a private key object and stores the result in a buffer. 1203 * \param key the EC_KEY object to encode 1204 * \param out the buffer for the result (if NULL the function returns number 1205 * of bytes needed). 1206 * \return 1 on success and 0 if an error occurred. 1207 */ 1208 OSSL_DEPRECATEDIN_3_0 int i2d_ECPrivateKey(const EC_KEY *key, 1209 unsigned char **out); 1210 1211 /********************************************************************/ 1212 /* de- and encoding functions for EC parameters */ 1213 /********************************************************************/ 1214 1215 /** Decodes ec parameter from a memory buffer. 1216 * \param key a pointer to a EC_KEY object which should be used (or NULL) 1217 * \param in pointer to memory with the DER encoded ec parameters 1218 * \param len length of the DER encoded ec parameters 1219 * \return a EC_KEY object with the decoded parameters or NULL if an error 1220 * occurred. 1221 */ 1222 OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECParameters(EC_KEY **key, 1223 const unsigned char **in, 1224 long len); 1225 1226 /** Encodes ec parameter and stores the result in a buffer. 1227 * \param key the EC_KEY object with ec parameters to encode 1228 * \param out the buffer for the result (if NULL the function returns number 1229 * of bytes needed). 1230 * \return 1 on success and 0 if an error occurred. 1231 */ 1232 OSSL_DEPRECATEDIN_3_0 int i2d_ECParameters(const EC_KEY *key, 1233 unsigned char **out); 1234 1235 /********************************************************************/ 1236 /* de- and encoding functions for EC public key */ 1237 /* (octet string, not DER -- hence 'o2i' and 'i2o') */ 1238 /********************************************************************/ 1239 1240 /** Decodes an ec public key from a octet string. 1241 * \param key a pointer to a EC_KEY object which should be used 1242 * \param in memory buffer with the encoded public key 1243 * \param len length of the encoded public key 1244 * \return EC_KEY object with decoded public key or NULL if an error 1245 * occurred. 1246 */ 1247 OSSL_DEPRECATEDIN_3_0 EC_KEY *o2i_ECPublicKey(EC_KEY **key, 1248 const unsigned char **in, long len); 1249 1250 /** Encodes an ec public key in an octet string. 1251 * \param key the EC_KEY object with the public key 1252 * \param out the buffer for the result (if NULL the function returns number 1253 * of bytes needed). 1254 * \return 1 on success and 0 if an error occurred 1255 */ 1256 OSSL_DEPRECATEDIN_3_0 int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out); 1257 1258 /** Prints out the ec parameters on human readable form. 1259 * \param bp BIO object to which the information is printed 1260 * \param key EC_KEY object 1261 * \return 1 on success and 0 if an error occurred 1262 */ 1263 OSSL_DEPRECATEDIN_3_0 int ECParameters_print(BIO *bp, const EC_KEY *key); 1264 1265 /** Prints out the contents of a EC_KEY object 1266 * \param bp BIO object to which the information is printed 1267 * \param key EC_KEY object 1268 * \param off line offset 1269 * \return 1 on success and 0 if an error occurred 1270 */ 1271 OSSL_DEPRECATEDIN_3_0 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); 1272 1273 #ifndef OPENSSL_NO_STDIO 1274 /** Prints out the ec parameters on human readable form. 1275 * \param fp file descriptor to which the information is printed 1276 * \param key EC_KEY object 1277 * \return 1 on success and 0 if an error occurred 1278 */ 1279 OSSL_DEPRECATEDIN_3_0 int ECParameters_print_fp(FILE *fp, const EC_KEY *key); 1280 1281 /** Prints out the contents of a EC_KEY object 1282 * \param fp file descriptor to which the information is printed 1283 * \param key EC_KEY object 1284 * \param off line offset 1285 * \return 1 on success and 0 if an error occurred 1286 */ 1287 OSSL_DEPRECATEDIN_3_0 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); 1288 #endif /* OPENSSL_NO_STDIO */ 1289 1290 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_OpenSSL(void); 1291 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_default_method(void); 1292 OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_default_method(const EC_KEY_METHOD *meth); 1293 OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key); 1294 OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth); 1295 OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_method(ENGINE *engine); 1296 1297 /** The old name for ecdh_KDF_X9_63 1298 * The ECDH KDF specification has been mistakenly attributed to ANSI X9.62, 1299 * it is actually specified in ANSI X9.63. 1300 * This identifier is retained for backwards compatibility 1301 */ 1302 OSSL_DEPRECATEDIN_3_0 int ECDH_KDF_X9_62(unsigned char *out, size_t outlen, 1303 const unsigned char *Z, size_t Zlen, 1304 const unsigned char *sinfo, 1305 size_t sinfolen, const EVP_MD *md); 1306 1307 OSSL_DEPRECATEDIN_3_0 int ECDH_compute_key(void *out, size_t outlen, 1308 const EC_POINT *pub_key, 1309 const EC_KEY *ecdh, 1310 void *(*KDF)(const void *in, 1311 size_t inlen, void *out, 1312 size_t *outlen)); 1313 #endif /* OPENSSL_NO_DEPRECATED_3_0 */ 1314 1315 typedef struct ECDSA_SIG_st ECDSA_SIG; 1316 1317 /** Allocates and initialize a ECDSA_SIG structure 1318 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1319 */ 1320 ECDSA_SIG *ECDSA_SIG_new(void); 1321 1322 /** frees a ECDSA_SIG structure 1323 * \param sig pointer to the ECDSA_SIG structure 1324 */ 1325 void ECDSA_SIG_free(ECDSA_SIG *sig); 1326 1327 /** i2d_ECDSA_SIG encodes content of ECDSA_SIG (note: this function modifies *pp 1328 * (*pp += length of the DER encoded signature)). 1329 * \param sig pointer to the ECDSA_SIG object 1330 * \param pp pointer to a unsigned char pointer for the output or NULL 1331 * \return the length of the DER encoded ECDSA_SIG object or a negative value 1332 * on error 1333 */ 1334 DECLARE_ASN1_ENCODE_FUNCTIONS_only(ECDSA_SIG, ECDSA_SIG) 1335 1336 /** d2i_ECDSA_SIG decodes an ECDSA signature (note: this function modifies *pp 1337 * (*pp += len)). 1338 * \param sig pointer to ECDSA_SIG pointer (may be NULL) 1339 * \param pp memory buffer with the DER encoded signature 1340 * \param len length of the buffer 1341 * \return pointer to the decoded ECDSA_SIG structure (or NULL) 1342 */ 1343 1344 /** Accessor for r and s fields of ECDSA_SIG 1345 * \param sig pointer to ECDSA_SIG structure 1346 * \param pr pointer to BIGNUM pointer for r (may be NULL) 1347 * \param ps pointer to BIGNUM pointer for s (may be NULL) 1348 */ 1349 void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); 1350 1351 /** Accessor for r field of ECDSA_SIG 1352 * \param sig pointer to ECDSA_SIG structure 1353 */ 1354 const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig); 1355 1356 /** Accessor for s field of ECDSA_SIG 1357 * \param sig pointer to ECDSA_SIG structure 1358 */ 1359 const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig); 1360 1361 /** Setter for r and s fields of ECDSA_SIG 1362 * \param sig pointer to ECDSA_SIG structure 1363 * \param r pointer to BIGNUM for r 1364 * \param s pointer to BIGNUM for s 1365 */ 1366 int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s); 1367 1368 #ifndef OPENSSL_NO_DEPRECATED_3_0 1369 /** Computes the ECDSA signature of the given hash value using 1370 * the supplied private key and returns the created signature. 1371 * \param dgst pointer to the hash value 1372 * \param dgst_len length of the hash value 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(const unsigned char *dgst, 1377 int dgst_len, EC_KEY *eckey); 1378 1379 /** Computes ECDSA signature of a given hash value using the supplied 1380 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1381 * \param dgst pointer to the hash value to sign 1382 * \param dgstlen length of the hash value 1383 * \param kinv BIGNUM with a pre-computed inverse k (optional) 1384 * \param rp BIGNUM with a pre-computed rp value (optional), 1385 * see ECDSA_sign_setup 1386 * \param eckey EC_KEY object containing a private EC key 1387 * \return pointer to a ECDSA_SIG structure or NULL if an error occurred 1388 */ 1389 OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst, 1390 int dgstlen, const BIGNUM *kinv, 1391 const BIGNUM *rp, EC_KEY *eckey); 1392 1393 /** Verifies that the supplied signature is a valid ECDSA 1394 * signature of the supplied hash value using the supplied public key. 1395 * \param dgst pointer to the hash value 1396 * \param dgst_len length of the hash value 1397 * \param sig ECDSA_SIG structure 1398 * \param eckey EC_KEY object containing a public EC key 1399 * \return 1 if the signature is valid, 0 if the signature is invalid 1400 * and -1 on error 1401 */ 1402 OSSL_DEPRECATEDIN_3_0 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len, 1403 const ECDSA_SIG *sig, EC_KEY *eckey); 1404 1405 /** Precompute parts of the signing operation 1406 * \param eckey EC_KEY object containing a private EC key 1407 * \param ctx BN_CTX object (optional) 1408 * \param kinv BIGNUM pointer for the inverse of k 1409 * \param rp BIGNUM pointer for x coordinate of k * generator 1410 * \return 1 on success and 0 otherwise 1411 */ 1412 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx, 1413 BIGNUM **kinv, BIGNUM **rp); 1414 1415 /** Computes ECDSA signature of a given hash value using the supplied 1416 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1417 * \param type this parameter is ignored 1418 * \param dgst pointer to the hash value to sign 1419 * \param dgstlen length of the hash value 1420 * \param sig memory for the DER encoded created signature 1421 * \param siglen pointer to the length of the returned signature 1422 * \param eckey EC_KEY object containing a private EC key 1423 * \return 1 on success and 0 otherwise 1424 */ 1425 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign(int type, const unsigned char *dgst, 1426 int dgstlen, unsigned char *sig, 1427 unsigned int *siglen, EC_KEY *eckey); 1428 1429 /** Computes ECDSA signature of a given hash value using the supplied 1430 * private key (note: sig must point to ECDSA_size(eckey) bytes of memory). 1431 * \param type this parameter is ignored 1432 * \param dgst pointer to the hash value to sign 1433 * \param dgstlen length of the hash value 1434 * \param sig buffer to hold the DER encoded signature 1435 * \param siglen pointer to the length of the returned signature 1436 * \param kinv BIGNUM with a pre-computed inverse k (optional) 1437 * \param rp BIGNUM with a pre-computed rp value (optional), 1438 * see ECDSA_sign_setup 1439 * \param eckey EC_KEY object containing a private EC key 1440 * \return 1 on success and 0 otherwise 1441 */ 1442 OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_ex(int type, const unsigned char *dgst, 1443 int dgstlen, unsigned char *sig, 1444 unsigned int *siglen, const BIGNUM *kinv, 1445 const BIGNUM *rp, EC_KEY *eckey); 1446 1447 /** Verifies that the given signature is valid ECDSA signature 1448 * of the supplied hash value using the specified public key. 1449 * \param type this parameter is ignored 1450 * \param dgst pointer to the hash value 1451 * \param dgstlen length of the hash value 1452 * \param sig pointer to the DER encoded signature 1453 * \param siglen length of the DER encoded signature 1454 * \param eckey EC_KEY object containing a public EC key 1455 * \return 1 if the signature is valid, 0 if the signature is invalid 1456 * and -1 on error 1457 */ 1458 OSSL_DEPRECATEDIN_3_0 int ECDSA_verify(int type, const unsigned char *dgst, 1459 int dgstlen, const unsigned char *sig, 1460 int siglen, EC_KEY *eckey); 1461 1462 /** Returns the maximum length of the DER encoded signature 1463 * \param eckey EC_KEY object 1464 * \return numbers of bytes required for the DER encoded signature 1465 */ 1466 OSSL_DEPRECATEDIN_3_0 int ECDSA_size(const EC_KEY *eckey); 1467 1468 /********************************************************************/ 1469 /* EC_KEY_METHOD constructors, destructors, writers and accessors */ 1470 /********************************************************************/ 1471 1472 OSSL_DEPRECATEDIN_3_0 EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth); 1473 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_free(EC_KEY_METHOD *meth); 1474 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth, 1475 int (*init)(EC_KEY *key), 1476 void (*finish)(EC_KEY *key), 1477 int (*copy)(EC_KEY *dest, const EC_KEY *src), 1478 int (*set_group)(EC_KEY *key, const EC_GROUP *grp), 1479 int (*set_private)(EC_KEY *key, const BIGNUM *priv_key), 1480 int (*set_public)(EC_KEY *key, const EC_POINT *pub_key)); 1481 1482 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth, 1483 int (*keygen)(EC_KEY *key)); 1484 1485 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth, 1486 int (*ckey)(unsigned char **psec, size_t *pseclen, 1487 const EC_POINT *pub_key, const EC_KEY *ecdh)); 1488 1489 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth, 1490 int (*sign)(int type, const unsigned char *dgst, 1491 int dlen, unsigned char *sig, 1492 unsigned int *siglen, 1493 const BIGNUM *kinv, const BIGNUM *r, 1494 EC_KEY *eckey), 1495 int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, 1496 BIGNUM **kinvp, BIGNUM **rp), 1497 ECDSA_SIG *(*sign_sig)(const unsigned char *dgst, 1498 int dgst_len, 1499 const BIGNUM *in_kinv, 1500 const BIGNUM *in_r, 1501 EC_KEY *eckey)); 1502 1503 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth, 1504 int (*verify)(int type, const unsigned char *dgst, int dgst_len, 1505 const unsigned char *sigbuf, 1506 int sig_len, EC_KEY *eckey), 1507 int (*verify_sig)(const unsigned char *dgst, 1508 int dgst_len, const ECDSA_SIG *sig, 1509 EC_KEY *eckey)); 1510 1511 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_init(const EC_KEY_METHOD *meth, 1512 int (**pinit)(EC_KEY *key), 1513 void (**pfinish)(EC_KEY *key), 1514 int (**pcopy)(EC_KEY *dest, const EC_KEY *src), 1515 int (**pset_group)(EC_KEY *key, const EC_GROUP *grp), 1516 int (**pset_private)(EC_KEY *key, const BIGNUM *priv_key), 1517 int (**pset_public)(EC_KEY *key, const EC_POINT *pub_key)); 1518 1519 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_keygen(const EC_KEY_METHOD *meth, int (**pkeygen)(EC_KEY *key)); 1520 1521 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_compute_key(const EC_KEY_METHOD *meth, 1522 int (**pck)(unsigned char **psec, 1523 size_t *pseclen, 1524 const EC_POINT *pub_key, 1525 const EC_KEY *ecdh)); 1526 1527 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_sign(const EC_KEY_METHOD *meth, 1528 int (**psign)(int type, const unsigned char *dgst, 1529 int dlen, unsigned char *sig, 1530 unsigned int *siglen, 1531 const BIGNUM *kinv, const BIGNUM *r, 1532 EC_KEY *eckey), 1533 int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in, 1534 BIGNUM **kinvp, BIGNUM **rp), 1535 ECDSA_SIG *(**psign_sig)(const unsigned char *dgst, 1536 int dgst_len, 1537 const BIGNUM *in_kinv, 1538 const BIGNUM *in_r, 1539 EC_KEY *eckey)); 1540 1541 OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_verify(const EC_KEY_METHOD *meth, 1542 int (**pverify)(int type, const unsigned 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
