1 /* Originally written by Bodo Moeller for the OpenSSL project. 2 * ==================================================================== 3 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * [email protected]. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This product includes cryptographic software written by Eric Young 51 * ([email protected]). This product includes software written by Tim 52 * Hudson ([email protected]). 53 * 54 */ 55 /* ==================================================================== 56 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 57 * 58 * Portions of the attached software ("Contribution") are developed by 59 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. 60 * 61 * The Contribution is licensed pursuant to the OpenSSL open source 62 * license provided above. 63 * 64 * The elliptic curve binary polynomial software is originally written by 65 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems 66 * Laboratories. */ 67 68 #ifndef OPENSSL_HEADER_EC_H 69 #define OPENSSL_HEADER_EC_H 70 71 #include <openssl/base.h> 72 73 #if defined(__cplusplus) 74 extern "C" { 75 #endif 76 77 78 // Low-level operations on elliptic curves. 79 80 81 // point_conversion_form_t enumerates forms, as defined in X9.62 (ECDSA), for 82 // the encoding of a elliptic curve point (x,y) 83 typedef enum { 84 // POINT_CONVERSION_COMPRESSED indicates that the point is encoded as z||x, 85 // where the octet z specifies which solution of the quadratic equation y 86 // is. 87 POINT_CONVERSION_COMPRESSED = 2, 88 89 // POINT_CONVERSION_UNCOMPRESSED indicates that the point is encoded as 90 // z||x||y, where z is the octet 0x04. 91 POINT_CONVERSION_UNCOMPRESSED = 4, 92 93 // POINT_CONVERSION_HYBRID indicates that the point is encoded as z||x||y, 94 // where z specifies which solution of the quadratic equation y is. This is 95 // not supported by the code and has never been observed in use. 96 // 97 // TODO(agl): remove once node.js no longer references this. 98 POINT_CONVERSION_HYBRID = 6, 99 } point_conversion_form_t; 100 101 102 // Elliptic curve groups. 103 // 104 // Elliptic curve groups are represented by |EC_GROUP| objects. Unlike OpenSSL, 105 // if limited to the APIs in this section, callers may treat |EC_GROUP|s as 106 // static, immutable objects which do not need to be copied or released. In 107 // BoringSSL, only custom |EC_GROUP|s created by |EC_GROUP_new_curve_GFp| 108 // (deprecated) are dynamic. 109 // 110 // Callers may cast away |const| and use |EC_GROUP_dup| and |EC_GROUP_free| with 111 // static groups, for compatibility with OpenSSL or dynamic groups, but it is 112 // otherwise unnecessary. 113 114 // EC_group_p224 returns an |EC_GROUP| for P-224, also known as secp224r1. 115 OPENSSL_EXPORT const EC_GROUP *EC_group_p224(void); 116 117 // EC_group_p256 returns an |EC_GROUP| for P-256, also known as secp256r1 or 118 // prime256v1. 119 OPENSSL_EXPORT const EC_GROUP *EC_group_p256(void); 120 121 // EC_group_p384 returns an |EC_GROUP| for P-384, also known as secp384r1. 122 OPENSSL_EXPORT const EC_GROUP *EC_group_p384(void); 123 124 // EC_group_p521 returns an |EC_GROUP| for P-521, also known as secp521r1. 125 OPENSSL_EXPORT const EC_GROUP *EC_group_p521(void); 126 127 // EC_GROUP_new_by_curve_name returns the |EC_GROUP| object for the elliptic 128 // curve specified by |nid|, or NULL on unsupported NID. For OpenSSL 129 // compatibility, this function returns a non-const pointer which may be passed 130 // to |EC_GROUP_free|. However, the resulting object is actually static and 131 // calling |EC_GROUP_free| is optional. 132 // 133 // The supported NIDs are: 134 // - |NID_secp224r1| (P-224) 135 // - |NID_X9_62_prime256v1| (P-256) 136 // - |NID_secp384r1| (P-384) 137 // - |NID_secp521r1| (P-521) 138 // 139 // Calling this function causes all four curves to be linked into the binary. 140 // Prefer calling |EC_group_*| to allow the static linker to drop unused curves. 141 // 142 // If in doubt, use |NID_X9_62_prime256v1|, or see the curve25519.h header for 143 // more modern primitives. 144 OPENSSL_EXPORT EC_GROUP *EC_GROUP_new_by_curve_name(int nid); 145 146 // EC_GROUP_cmp returns zero if |a| and |b| are the same group and non-zero 147 // otherwise. 148 OPENSSL_EXPORT int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, 149 BN_CTX *ignored); 150 151 // EC_GROUP_get0_generator returns a pointer to the internal |EC_POINT| object 152 // in |group| that specifies the generator for the group. 153 OPENSSL_EXPORT const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); 154 155 // EC_GROUP_get0_order returns a pointer to the internal |BIGNUM| object in 156 // |group| that specifies the order of the group. 157 OPENSSL_EXPORT const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group); 158 159 // EC_GROUP_order_bits returns the number of bits of the order of |group|. 160 OPENSSL_EXPORT int EC_GROUP_order_bits(const EC_GROUP *group); 161 162 // EC_GROUP_get_cofactor sets |*cofactor| to the cofactor of |group| using 163 // |ctx|, if it's not NULL. It returns one on success and zero otherwise. 164 OPENSSL_EXPORT int EC_GROUP_get_cofactor(const EC_GROUP *group, 165 BIGNUM *cofactor, BN_CTX *ctx); 166 167 // EC_GROUP_get_curve_GFp gets various parameters about a group. It sets 168 // |*out_p| to the order of the coordinate field and |*out_a| and |*out_b| to 169 // the parameters of the curve when expressed as y² = x³ + ax + b. Any of the 170 // output parameters can be NULL. It returns one on success and zero on 171 // error. 172 OPENSSL_EXPORT int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *out_p, 173 BIGNUM *out_a, BIGNUM *out_b, 174 BN_CTX *ctx); 175 176 // EC_GROUP_get_curve_name returns a NID that identifies |group|. 177 OPENSSL_EXPORT int EC_GROUP_get_curve_name(const EC_GROUP *group); 178 179 // EC_GROUP_get_degree returns the number of bits needed to represent an 180 // element of the field underlying |group|. 181 OPENSSL_EXPORT unsigned EC_GROUP_get_degree(const EC_GROUP *group); 182 183 // EC_curve_nid2nist returns the NIST name of the elliptic curve specified by 184 // |nid|, or NULL if |nid| is not a NIST curve. For example, it returns "P-256" 185 // for |NID_X9_62_prime256v1|. 186 OPENSSL_EXPORT const char *EC_curve_nid2nist(int nid); 187 188 // EC_curve_nist2nid returns the NID of the elliptic curve specified by the NIST 189 // name |name|, or |NID_undef| if |name| is not a recognized name. For example, 190 // it returns |NID_X9_62_prime256v1| for "P-256". 191 OPENSSL_EXPORT int EC_curve_nist2nid(const char *name); 192 193 194 // Points on elliptic curves. 195 196 // EC_POINT_new returns a fresh |EC_POINT| object in the given group, or NULL 197 // on error. 198 OPENSSL_EXPORT EC_POINT *EC_POINT_new(const EC_GROUP *group); 199 200 // EC_POINT_free frees |point| and the data that it points to. 201 OPENSSL_EXPORT void EC_POINT_free(EC_POINT *point); 202 203 // EC_POINT_copy sets |*dest| equal to |*src|. It returns one on success and 204 // zero otherwise. 205 OPENSSL_EXPORT int EC_POINT_copy(EC_POINT *dest, const EC_POINT *src); 206 207 // EC_POINT_dup returns a fresh |EC_POINT| that contains the same values as 208 // |src|, or NULL on error. 209 OPENSSL_EXPORT EC_POINT *EC_POINT_dup(const EC_POINT *src, 210 const EC_GROUP *group); 211 212 // EC_POINT_set_to_infinity sets |point| to be the "point at infinity" for the 213 // given group. 214 OPENSSL_EXPORT int EC_POINT_set_to_infinity(const EC_GROUP *group, 215 EC_POINT *point); 216 217 // EC_POINT_is_at_infinity returns one iff |point| is the point at infinity and 218 // zero otherwise. 219 OPENSSL_EXPORT int EC_POINT_is_at_infinity(const EC_GROUP *group, 220 const EC_POINT *point); 221 222 // EC_POINT_is_on_curve returns one if |point| is an element of |group| and 223 // and zero otherwise or when an error occurs. This is different from OpenSSL, 224 // which returns -1 on error. If |ctx| is non-NULL, it may be used. 225 OPENSSL_EXPORT int EC_POINT_is_on_curve(const EC_GROUP *group, 226 const EC_POINT *point, BN_CTX *ctx); 227 228 // EC_POINT_cmp returns zero if |a| is equal to |b|, greater than zero if 229 // not equal and -1 on error. If |ctx| is not NULL, it may be used. 230 OPENSSL_EXPORT int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, 231 const EC_POINT *b, BN_CTX *ctx); 232 233 234 // Point conversion. 235 236 // EC_POINT_get_affine_coordinates_GFp sets |x| and |y| to the affine value of 237 // |point| using |ctx|, if it's not NULL. It returns one on success and zero 238 // otherwise. 239 // 240 // Either |x| or |y| may be NULL to skip computing that coordinate. This is 241 // slightly faster in the common case where only the x-coordinate is needed. 242 OPENSSL_EXPORT int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, 243 const EC_POINT *point, 244 BIGNUM *x, BIGNUM *y, 245 BN_CTX *ctx); 246 247 // EC_POINT_get_affine_coordinates is an alias of 248 // |EC_POINT_get_affine_coordinates_GFp|. 249 OPENSSL_EXPORT int EC_POINT_get_affine_coordinates(const EC_GROUP *group, 250 const EC_POINT *point, 251 BIGNUM *x, BIGNUM *y, 252 BN_CTX *ctx); 253 254 // EC_POINT_set_affine_coordinates_GFp sets the value of |point| to be 255 // (|x|, |y|). The |ctx| argument may be used if not NULL. It returns one 256 // on success or zero on error. It's considered an error if the point is not on 257 // the curve. 258 // 259 // Note that the corresponding function in OpenSSL versions prior to 1.0.2s does 260 // not check if the point is on the curve. This is a security-critical check, so 261 // code additionally supporting OpenSSL should repeat the check with 262 // |EC_POINT_is_on_curve| or check for older OpenSSL versions with 263 // |OPENSSL_VERSION_NUMBER|. 264 OPENSSL_EXPORT int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, 265 EC_POINT *point, 266 const BIGNUM *x, 267 const BIGNUM *y, 268 BN_CTX *ctx); 269 270 // EC_POINT_set_affine_coordinates is an alias of 271 // |EC_POINT_set_affine_coordinates_GFp|. 272 OPENSSL_EXPORT int EC_POINT_set_affine_coordinates(const EC_GROUP *group, 273 EC_POINT *point, 274 const BIGNUM *x, 275 const BIGNUM *y, 276 BN_CTX *ctx); 277 278 // EC_POINT_point2oct serialises |point| into the X9.62 form given by |form| 279 // into, at most, |max_out| bytes at |buf|. It returns the number of bytes 280 // written or zero on error if |buf| is non-NULL, else the number of bytes 281 // needed. The |ctx| argument may be used if not NULL. 282 OPENSSL_EXPORT size_t EC_POINT_point2oct(const EC_GROUP *group, 283 const EC_POINT *point, 284 point_conversion_form_t form, 285 uint8_t *buf, size_t max_out, 286 BN_CTX *ctx); 287 288 // EC_POINT_point2buf serialises |point| into the X9.62 form given by |form| to 289 // a newly-allocated buffer and sets |*out_buf| to point to it. It returns the 290 // length of the result on success or zero on error. The caller must release 291 // |*out_buf| with |OPENSSL_free| when done. 292 OPENSSL_EXPORT size_t EC_POINT_point2buf(const EC_GROUP *group, 293 const EC_POINT *point, 294 point_conversion_form_t form, 295 uint8_t **out_buf, BN_CTX *ctx); 296 297 // EC_POINT_point2cbb behaves like |EC_POINT_point2oct| but appends the 298 // serialised point to |cbb|. It returns one on success and zero on error. 299 OPENSSL_EXPORT int EC_POINT_point2cbb(CBB *out, const EC_GROUP *group, 300 const EC_POINT *point, 301 point_conversion_form_t form, 302 BN_CTX *ctx); 303 304 // EC_POINT_oct2point sets |point| from |len| bytes of X9.62 format 305 // serialisation in |buf|. It returns one on success and zero on error. The 306 // |ctx| argument may be used if not NULL. It's considered an error if |buf| 307 // does not represent a point on the curve. 308 OPENSSL_EXPORT int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *point, 309 const uint8_t *buf, size_t len, 310 BN_CTX *ctx); 311 312 // EC_POINT_set_compressed_coordinates_GFp sets |point| to equal the point with 313 // the given |x| coordinate and the y coordinate specified by |y_bit| (see 314 // X9.62). It returns one on success and zero otherwise. 315 OPENSSL_EXPORT int EC_POINT_set_compressed_coordinates_GFp( 316 const EC_GROUP *group, EC_POINT *point, const BIGNUM *x, int y_bit, 317 BN_CTX *ctx); 318 319 320 // Group operations. 321 322 // EC_POINT_add sets |r| equal to |a| plus |b|. It returns one on success and 323 // zero otherwise. If |ctx| is not NULL, it may be used. 324 OPENSSL_EXPORT int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, 325 const EC_POINT *a, const EC_POINT *b, 326 BN_CTX *ctx); 327 328 // EC_POINT_dbl sets |r| equal to |a| plus |a|. It returns one on success and 329 // zero otherwise. If |ctx| is not NULL, it may be used. 330 OPENSSL_EXPORT int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, 331 const EC_POINT *a, BN_CTX *ctx); 332 333 // EC_POINT_invert sets |a| equal to minus |a|. It returns one on success and 334 // zero otherwise. If |ctx| is not NULL, it may be used. 335 OPENSSL_EXPORT int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, 336 BN_CTX *ctx); 337 338 // EC_POINT_mul sets r = generator*n + q*m. It returns one on success and zero 339 // otherwise. If |ctx| is not NULL, it may be used. 340 OPENSSL_EXPORT int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, 341 const BIGNUM *n, const EC_POINT *q, 342 const BIGNUM *m, BN_CTX *ctx); 343 344 345 // Hash-to-curve. 346 // 347 // The following functions implement primitives from RFC 9380. The |dst| 348 // parameter in each function is the domain separation tag and must be unique 349 // for each protocol and between the |hash_to_curve| and |hash_to_scalar| 350 // variants. See section 3.1 of the spec for additional guidance on this 351 // parameter. 352 353 // EC_hash_to_curve_p256_xmd_sha256_sswu hashes |msg| to a point on |group| and 354 // writes the result to |out|, implementing the P256_XMD:SHA-256_SSWU_RO_ suite 355 // from RFC 9380. It returns one on success and zero on error. 356 OPENSSL_EXPORT int EC_hash_to_curve_p256_xmd_sha256_sswu( 357 const EC_GROUP *group, EC_POINT *out, const uint8_t *dst, size_t dst_len, 358 const uint8_t *msg, size_t msg_len); 359 360 // EC_hash_to_curve_p384_xmd_sha384_sswu hashes |msg| to a point on |group| and 361 // writes the result to |out|, implementing the P384_XMD:SHA-384_SSWU_RO_ suite 362 // from RFC 9380. It returns one on success and zero on error. 363 OPENSSL_EXPORT int EC_hash_to_curve_p384_xmd_sha384_sswu( 364 const EC_GROUP *group, EC_POINT *out, const uint8_t *dst, size_t dst_len, 365 const uint8_t *msg, size_t msg_len); 366 367 368 // Deprecated functions. 369 370 // EC_GROUP_free releases a reference to |group|, if |group| was created by 371 // |EC_GROUP_new_curve_GFp|. If |group| is static, it does nothing. 372 // 373 // This function exists for OpenSSL compatibilty, and to manage dynamic 374 // |EC_GROUP|s constructed by |EC_GROUP_new_curve_GFp|. Callers that do not need 375 // either may ignore this function. 376 OPENSSL_EXPORT void EC_GROUP_free(EC_GROUP *group); 377 378 // EC_GROUP_dup increments |group|'s reference count and returns it, if |group| 379 // was created by |EC_GROUP_new_curve_GFp|. If |group| is static, it simply 380 // returns |group|. 381 // 382 // This function exists for OpenSSL compatibilty, and to manage dynamic 383 // |EC_GROUP|s constructed by |EC_GROUP_new_curve_GFp|. Callers that do not need 384 // either may ignore this function. 385 OPENSSL_EXPORT EC_GROUP *EC_GROUP_dup(const EC_GROUP *group); 386 387 // EC_GROUP_new_curve_GFp creates a new, arbitrary elliptic curve group based 388 // on the equation y² = x³ + a·x + b. It returns the new group or NULL on 389 // error. The lifetime of the resulting object must be managed with 390 // |EC_GROUP_dup| and |EC_GROUP_free|. 391 // 392 // This new group has no generator. It is an error to use a generator-less group 393 // with any functions except for |EC_GROUP_free|, |EC_POINT_new|, 394 // |EC_POINT_set_affine_coordinates_GFp|, and |EC_GROUP_set_generator|. 395 // 396 // |EC_GROUP|s returned by this function will always compare as unequal via 397 // |EC_GROUP_cmp| (even to themselves). |EC_GROUP_get_curve_name| will always 398 // return |NID_undef|. 399 // 400 // This function is provided for compatibility with some legacy applications 401 // only. Avoid using arbitrary curves and use |EC_GROUP_new_by_curve_name| 402 // instead. This ensures the result meets preconditions necessary for 403 // elliptic curve algorithms to function correctly and securely. 404 // 405 // Given invalid parameters, this function may fail or it may return an 406 // |EC_GROUP| which breaks these preconditions. Subsequent operations may then 407 // return arbitrary, incorrect values. Callers should not pass 408 // attacker-controlled values to this function. 409 OPENSSL_EXPORT EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, 410 const BIGNUM *a, 411 const BIGNUM *b, BN_CTX *ctx); 412 413 // EC_GROUP_set_generator sets the generator for |group| to |generator|, which 414 // must have the given order and cofactor. It may only be used with |EC_GROUP| 415 // objects returned by |EC_GROUP_new_curve_GFp| and may only be used once on 416 // each group. |generator| must have been created using |group|. 417 OPENSSL_EXPORT int EC_GROUP_set_generator(EC_GROUP *group, 418 const EC_POINT *generator, 419 const BIGNUM *order, 420 const BIGNUM *cofactor); 421 422 // EC_GROUP_get_order sets |*order| to the order of |group|, if it's not 423 // NULL. It returns one on success and zero otherwise. |ctx| is ignored. Use 424 // |EC_GROUP_get0_order| instead. 425 OPENSSL_EXPORT int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, 426 BN_CTX *ctx); 427 428 #define OPENSSL_EC_EXPLICIT_CURVE 0 429 #define OPENSSL_EC_NAMED_CURVE 1 430 431 // EC_GROUP_set_asn1_flag does nothing. 432 OPENSSL_EXPORT void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); 433 434 // EC_GROUP_get_asn1_flag returns |OPENSSL_EC_NAMED_CURVE|. 435 OPENSSL_EXPORT int EC_GROUP_get_asn1_flag(const EC_GROUP *group); 436 437 typedef struct ec_method_st EC_METHOD; 438 439 // EC_GROUP_method_of returns a dummy non-NULL pointer. 440 OPENSSL_EXPORT const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); 441 442 // EC_METHOD_get_field_type returns NID_X9_62_prime_field. 443 OPENSSL_EXPORT int EC_METHOD_get_field_type(const EC_METHOD *meth); 444 445 // EC_GROUP_set_point_conversion_form aborts the process if |form| is not 446 // |POINT_CONVERSION_UNCOMPRESSED| and otherwise does nothing. 447 OPENSSL_EXPORT void EC_GROUP_set_point_conversion_form( 448 EC_GROUP *group, point_conversion_form_t form); 449 450 // EC_builtin_curve describes a supported elliptic curve. 451 typedef struct { 452 int nid; 453 const char *comment; 454 } EC_builtin_curve; 455 456 // EC_get_builtin_curves writes at most |max_num_curves| elements to 457 // |out_curves| and returns the total number that it would have written, had 458 // |max_num_curves| been large enough. 459 // 460 // The |EC_builtin_curve| items describe the supported elliptic curves. 461 OPENSSL_EXPORT size_t EC_get_builtin_curves(EC_builtin_curve *out_curves, 462 size_t max_num_curves); 463 464 // EC_POINT_clear_free calls |EC_POINT_free|. 465 OPENSSL_EXPORT void EC_POINT_clear_free(EC_POINT *point); 466 467 468 #if defined(__cplusplus) 469 } // extern C 470 #endif 471 472 // Old code expects to get EC_KEY from ec.h. 473 #include <openssl/ec_key.h> 474 475 #if defined(__cplusplus) 476 extern "C++" { 477 478 BSSL_NAMESPACE_BEGIN 479 480 BORINGSSL_MAKE_DELETER(EC_POINT, EC_POINT_free) 481 BORINGSSL_MAKE_DELETER(EC_GROUP, EC_GROUP_free) 482 483 BSSL_NAMESPACE_END 484 485 } // extern C++ 486 487 #endif 488 489 #define EC_R_BUFFER_TOO_SMALL 100 490 #define EC_R_COORDINATES_OUT_OF_RANGE 101 491 #define EC_R_D2I_ECPKPARAMETERS_FAILURE 102 492 #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 103 493 #define EC_R_GROUP2PKPARAMETERS_FAILURE 104 494 #define EC_R_I2D_ECPKPARAMETERS_FAILURE 105 495 #define EC_R_INCOMPATIBLE_OBJECTS 106 496 #define EC_R_INVALID_COMPRESSED_POINT 107 497 #define EC_R_INVALID_COMPRESSION_BIT 108 498 #define EC_R_INVALID_ENCODING 109 499 #define EC_R_INVALID_FIELD 110 500 #define EC_R_INVALID_FORM 111 501 #define EC_R_INVALID_GROUP_ORDER 112 502 #define EC_R_INVALID_PRIVATE_KEY 113 503 #define EC_R_MISSING_PARAMETERS 114 504 #define EC_R_MISSING_PRIVATE_KEY 115 505 #define EC_R_NON_NAMED_CURVE 116 506 #define EC_R_NOT_INITIALIZED 117 507 #define EC_R_PKPARAMETERS2GROUP_FAILURE 118 508 #define EC_R_POINT_AT_INFINITY 119 509 #define EC_R_POINT_IS_NOT_ON_CURVE 120 510 #define EC_R_SLOT_FULL 121 511 #define EC_R_UNDEFINED_GENERATOR 122 512 #define EC_R_UNKNOWN_GROUP 123 513 #define EC_R_UNKNOWN_ORDER 124 514 #define EC_R_WRONG_ORDER 125 515 #define EC_R_BIGNUM_OUT_OF_RANGE 126 516 #define EC_R_WRONG_CURVE_PARAMETERS 127 517 #define EC_R_DECODE_ERROR 128 518 #define EC_R_ENCODE_ERROR 129 519 #define EC_R_GROUP_MISMATCH 130 520 #define EC_R_INVALID_COFACTOR 131 521 #define EC_R_PUBLIC_KEY_VALIDATION_FAILED 132 522 #define EC_R_INVALID_SCALAR 133 523 524 #endif // OPENSSL_HEADER_EC_H 525