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Diffstat (limited to 'src/lib/libcrypto/ec/ec.h')
| -rw-r--r-- | src/lib/libcrypto/ec/ec.h | 1100 |
1 files changed, 1100 insertions, 0 deletions
diff --git a/src/lib/libcrypto/ec/ec.h b/src/lib/libcrypto/ec/ec.h new file mode 100644 index 0000000000..ee7078130c --- /dev/null +++ b/src/lib/libcrypto/ec/ec.h | |||
| @@ -0,0 +1,1100 @@ | |||
| 1 | /* crypto/ec/ec.h */ | ||
| 2 | /* | ||
| 3 | * Originally written by Bodo Moeller for the OpenSSL project. | ||
| 4 | */ | ||
| 5 | /** | ||
| 6 | * \file crypto/ec/ec.h Include file for the OpenSSL EC functions | ||
| 7 | * \author Originally written by Bodo Moeller for the OpenSSL project | ||
| 8 | */ | ||
| 9 | /* ==================================================================== | ||
| 10 | * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. | ||
| 11 | * | ||
| 12 | * Redistribution and use in source and binary forms, with or without | ||
| 13 | * modification, are permitted provided that the following conditions | ||
| 14 | * are met: | ||
| 15 | * | ||
| 16 | * 1. Redistributions of source code must retain the above copyright | ||
| 17 | * notice, this list of conditions and the following disclaimer. | ||
| 18 | * | ||
| 19 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 20 | * notice, this list of conditions and the following disclaimer in | ||
| 21 | * the documentation and/or other materials provided with the | ||
| 22 | * distribution. | ||
| 23 | * | ||
| 24 | * 3. All advertising materials mentioning features or use of this | ||
| 25 | * software must display the following acknowledgment: | ||
| 26 | * "This product includes software developed by the OpenSSL Project | ||
| 27 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 28 | * | ||
| 29 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 30 | * endorse or promote products derived from this software without | ||
| 31 | * prior written permission. For written permission, please contact | ||
| 32 | * openssl-core@openssl.org. | ||
| 33 | * | ||
| 34 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 35 | * nor may "OpenSSL" appear in their names without prior written | ||
| 36 | * permission of the OpenSSL Project. | ||
| 37 | * | ||
| 38 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 39 | * acknowledgment: | ||
| 40 | * "This product includes software developed by the OpenSSL Project | ||
| 41 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 42 | * | ||
| 43 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 44 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 45 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 46 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 47 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 48 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 49 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 50 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 51 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 52 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 53 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 54 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 55 | * ==================================================================== | ||
| 56 | * | ||
| 57 | * This product includes cryptographic software written by Eric Young | ||
| 58 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 59 | * Hudson (tjh@cryptsoft.com). | ||
| 60 | * | ||
| 61 | */ | ||
| 62 | /* ==================================================================== | ||
| 63 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | ||
| 64 | * | ||
| 65 | * Portions of the attached software ("Contribution") are developed by | ||
| 66 | * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. | ||
| 67 | * | ||
| 68 | * The Contribution is licensed pursuant to the OpenSSL open source | ||
| 69 | * license provided above. | ||
| 70 | * | ||
| 71 | * The elliptic curve binary polynomial software is originally written by | ||
| 72 | * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. | ||
| 73 | * | ||
| 74 | */ | ||
| 75 | |||
| 76 | #ifndef HEADER_EC_H | ||
| 77 | #define HEADER_EC_H | ||
| 78 | |||
| 79 | #include <openssl/opensslconf.h> | ||
| 80 | |||
| 81 | #ifdef OPENSSL_NO_EC | ||
| 82 | #error EC is disabled. | ||
| 83 | #endif | ||
| 84 | |||
| 85 | #include <openssl/asn1.h> | ||
| 86 | #include <openssl/symhacks.h> | ||
| 87 | #ifndef OPENSSL_NO_DEPRECATED | ||
| 88 | #include <openssl/bn.h> | ||
| 89 | #endif | ||
| 90 | |||
| 91 | #ifdef __cplusplus | ||
| 92 | extern "C" { | ||
| 93 | #elif defined(__SUNPRO_C) | ||
| 94 | # if __SUNPRO_C >= 0x520 | ||
| 95 | # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) | ||
| 96 | # endif | ||
| 97 | #endif | ||
| 98 | |||
| 99 | |||
| 100 | #ifndef OPENSSL_ECC_MAX_FIELD_BITS | ||
| 101 | # define OPENSSL_ECC_MAX_FIELD_BITS 661 | ||
| 102 | #endif | ||
| 103 | |||
| 104 | /** Enum for the point conversion form as defined in X9.62 (ECDSA) | ||
| 105 | * for the encoding of a elliptic curve point (x,y) */ | ||
| 106 | typedef enum { | ||
| 107 | /** the point is encoded as z||x, where the octet z specifies | ||
| 108 | * which solution of the quadratic equation y is */ | ||
| 109 | POINT_CONVERSION_COMPRESSED = 2, | ||
| 110 | /** the point is encoded as z||x||y, where z is the octet 0x02 */ | ||
| 111 | POINT_CONVERSION_UNCOMPRESSED = 4, | ||
| 112 | /** the point is encoded as z||x||y, where the octet z specifies | ||
| 113 | * which solution of the quadratic equation y is */ | ||
| 114 | POINT_CONVERSION_HYBRID = 6 | ||
| 115 | } point_conversion_form_t; | ||
| 116 | |||
| 117 | |||
| 118 | typedef struct ec_method_st EC_METHOD; | ||
| 119 | |||
| 120 | typedef struct ec_group_st | ||
| 121 | /* | ||
| 122 | EC_METHOD *meth; | ||
| 123 | -- field definition | ||
| 124 | -- curve coefficients | ||
| 125 | -- optional generator with associated information (order, cofactor) | ||
| 126 | -- optional extra data (precomputed table for fast computation of multiples of generator) | ||
| 127 | -- ASN1 stuff | ||
| 128 | */ | ||
| 129 | EC_GROUP; | ||
| 130 | |||
| 131 | typedef struct ec_point_st EC_POINT; | ||
| 132 | |||
| 133 | |||
| 134 | /********************************************************************/ | ||
| 135 | /* EC_METHODs for curves over GF(p) */ | ||
| 136 | /********************************************************************/ | ||
| 137 | |||
| 138 | /** Returns the basic GFp ec methods which provides the basis for the | ||
| 139 | * optimized methods. | ||
| 140 | * \return EC_METHOD object | ||
| 141 | */ | ||
| 142 | const EC_METHOD *EC_GFp_simple_method(void); | ||
| 143 | |||
| 144 | /** Returns GFp methods using montgomery multiplication. | ||
| 145 | * \return EC_METHOD object | ||
| 146 | */ | ||
| 147 | const EC_METHOD *EC_GFp_mont_method(void); | ||
| 148 | |||
| 149 | /** Returns GFp methods using optimized methods for NIST recommended curves | ||
| 150 | * \return EC_METHOD object | ||
| 151 | */ | ||
| 152 | const EC_METHOD *EC_GFp_nist_method(void); | ||
| 153 | |||
| 154 | |||
| 155 | /********************************************************************/ | ||
| 156 | /* EC_METHOD for curves over GF(2^m) */ | ||
| 157 | /********************************************************************/ | ||
| 158 | |||
| 159 | /** Returns the basic GF2m ec method | ||
| 160 | * \return EC_METHOD object | ||
| 161 | */ | ||
| 162 | const EC_METHOD *EC_GF2m_simple_method(void); | ||
| 163 | |||
| 164 | |||
| 165 | /********************************************************************/ | ||
| 166 | /* EC_GROUP functions */ | ||
| 167 | /********************************************************************/ | ||
| 168 | |||
| 169 | /** Creates a new EC_GROUP object | ||
| 170 | * \param meth EC_METHOD to use | ||
| 171 | * \return newly created EC_GROUP object or NULL in case of an error. | ||
| 172 | */ | ||
| 173 | EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); | ||
| 174 | |||
| 175 | /** Frees a EC_GROUP object | ||
| 176 | * \param group EC_GROUP object to be freed. | ||
| 177 | */ | ||
| 178 | void EC_GROUP_free(EC_GROUP *group); | ||
| 179 | |||
| 180 | /** Clears and frees a EC_GROUP object | ||
| 181 | * \param group EC_GROUP object to be cleared and freed. | ||
| 182 | */ | ||
| 183 | void EC_GROUP_clear_free(EC_GROUP *group); | ||
| 184 | |||
| 185 | /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. | ||
| 186 | * \param dst destination EC_GROUP object | ||
| 187 | * \param src source EC_GROUP object | ||
| 188 | * \return 1 on success and 0 if an error occurred. | ||
| 189 | */ | ||
| 190 | int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); | ||
| 191 | |||
| 192 | /** Creates a new EC_GROUP object and copies the copies the content | ||
| 193 | * form src to the newly created EC_KEY object | ||
| 194 | * \param src source EC_GROUP object | ||
| 195 | * \return newly created EC_GROUP object or NULL in case of an error. | ||
| 196 | */ | ||
| 197 | EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); | ||
| 198 | |||
| 199 | /** Returns the EC_METHOD of the EC_GROUP object. | ||
| 200 | * \param group EC_GROUP object | ||
| 201 | * \return EC_METHOD used in this EC_GROUP object. | ||
| 202 | */ | ||
| 203 | const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); | ||
| 204 | |||
| 205 | /** Returns the field type of the EC_METHOD. | ||
| 206 | * \param meth EC_METHOD object | ||
| 207 | * \return NID of the underlying field type OID. | ||
| 208 | */ | ||
| 209 | int EC_METHOD_get_field_type(const EC_METHOD *meth); | ||
| 210 | |||
| 211 | /** Sets the generator and it's order/cofactor of a EC_GROUP object. | ||
| 212 | * \param group EC_GROUP object | ||
| 213 | * \param generator EC_POINT object with the generator. | ||
| 214 | * \param order the order of the group generated by the generator. | ||
| 215 | * \param cofactor the index of the sub-group generated by the generator | ||
| 216 | * in the group of all points on the elliptic curve. | ||
| 217 | * \return 1 on success and 0 if an error occured | ||
| 218 | */ | ||
| 219 | int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, 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 | /** Gets the order of a EC_GROUP | ||
| 228 | * \param group EC_GROUP object | ||
| 229 | * \param order BIGNUM to which the order is copied | ||
| 230 | * \param ctx BN_CTX object (optional) | ||
| 231 | * \return 1 on success and 0 if an error occured | ||
| 232 | */ | ||
| 233 | int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); | ||
| 234 | |||
| 235 | /** Gets the cofactor of a EC_GROUP | ||
| 236 | * \param group EC_GROUP object | ||
| 237 | * \param cofactor BIGNUM to which the cofactor is copied | ||
| 238 | * \param ctx BN_CTX object (optional) | ||
| 239 | * \return 1 on success and 0 if an error occured | ||
| 240 | */ | ||
| 241 | int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx); | ||
| 242 | |||
| 243 | /** Sets the name of a EC_GROUP object | ||
| 244 | * \param group EC_GROUP object | ||
| 245 | * \param nid NID of the curve name OID | ||
| 246 | */ | ||
| 247 | void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); | ||
| 248 | |||
| 249 | /** Returns the curve name of a EC_GROUP object | ||
| 250 | * \param group EC_GROUP object | ||
| 251 | * \return NID of the curve name OID or 0 if not set. | ||
| 252 | */ | ||
| 253 | int EC_GROUP_get_curve_name(const EC_GROUP *group); | ||
| 254 | |||
| 255 | void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); | ||
| 256 | int EC_GROUP_get_asn1_flag(const EC_GROUP *group); | ||
| 257 | |||
| 258 | void EC_GROUP_set_point_conversion_form(EC_GROUP *, point_conversion_form_t); | ||
| 259 | point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); | ||
| 260 | |||
| 261 | unsigned char *EC_GROUP_get0_seed(const EC_GROUP *); | ||
| 262 | size_t EC_GROUP_get_seed_len(const EC_GROUP *); | ||
| 263 | size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); | ||
| 264 | |||
| 265 | /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b | ||
| 266 | * \param group EC_GROUP object | ||
| 267 | * \param p BIGNUM with the prime number | ||
| 268 | * \param a BIGNUM with parameter a of the equation | ||
| 269 | * \param b BIGNUM with parameter b of the equation | ||
| 270 | * \param ctx BN_CTX object (optional) | ||
| 271 | * \return 1 on success and 0 if an error occured | ||
| 272 | */ | ||
| 273 | int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); | ||
| 274 | |||
| 275 | /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b | ||
| 276 | * \param group EC_GROUP object | ||
| 277 | * \param p BIGNUM for the prime number | ||
| 278 | * \param a BIGNUM for parameter a of the equation | ||
| 279 | * \param b BIGNUM for parameter b of the equation | ||
| 280 | * \param ctx BN_CTX object (optional) | ||
| 281 | * \return 1 on success and 0 if an error occured | ||
| 282 | */ | ||
| 283 | int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx); | ||
| 284 | |||
| 285 | /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b | ||
| 286 | * \param group EC_GROUP object | ||
| 287 | * \param p BIGNUM with the polynomial defining the underlying field | ||
| 288 | * \param a BIGNUM with parameter a of the equation | ||
| 289 | * \param b BIGNUM with parameter b of the equation | ||
| 290 | * \param ctx BN_CTX object (optional) | ||
| 291 | * \return 1 on success and 0 if an error occured | ||
| 292 | */ | ||
| 293 | int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); | ||
| 294 | |||
| 295 | /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b | ||
| 296 | * \param group EC_GROUP object | ||
| 297 | * \param p BIGNUM for the polynomial defining the underlying field | ||
| 298 | * \param a BIGNUM for parameter a of the equation | ||
| 299 | * \param b BIGNUM for parameter b of the equation | ||
| 300 | * \param ctx BN_CTX object (optional) | ||
| 301 | * \return 1 on success and 0 if an error occured | ||
| 302 | */ | ||
| 303 | int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx); | ||
| 304 | |||
| 305 | /** Returns the number of bits needed to represent a field element | ||
| 306 | * \param group EC_GROUP object | ||
| 307 | * \return number of bits needed to represent a field element | ||
| 308 | */ | ||
| 309 | int EC_GROUP_get_degree(const EC_GROUP *group); | ||
| 310 | |||
| 311 | /** Checks whether the parameter in the EC_GROUP define a valid ec group | ||
| 312 | * \param group EC_GROUP object | ||
| 313 | * \param ctx BN_CTX object (optional) | ||
| 314 | * \return 1 if group is a valid ec group and 0 otherwise | ||
| 315 | */ | ||
| 316 | int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); | ||
| 317 | |||
| 318 | /** Checks whether the discriminant of the elliptic curve is zero or not | ||
| 319 | * \param group EC_GROUP object | ||
| 320 | * \param ctx BN_CTX object (optional) | ||
| 321 | * \return 1 if the discriminant is not zero and 0 otherwise | ||
| 322 | */ | ||
| 323 | int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); | ||
| 324 | |||
| 325 | /** Compares two EC_GROUP objects | ||
| 326 | * \param a first EC_GROUP object | ||
| 327 | * \param b second EC_GROUP object | ||
| 328 | * \param ctx BN_CTX object (optional) | ||
| 329 | * \return 0 if both groups are equal and 1 otherwise | ||
| 330 | */ | ||
| 331 | int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); | ||
| 332 | |||
| 333 | /* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() | ||
| 334 | * after choosing an appropriate EC_METHOD */ | ||
| 335 | |||
| 336 | /** Creates a new EC_GROUP object with the specified parameters defined | ||
| 337 | * over GFp (defined by the equation y^2 = x^3 + a*x + b) | ||
| 338 | * \param p BIGNUM with the prime number | ||
| 339 | * \param a BIGNUM with the parameter a of the equation | ||
| 340 | * \param b BIGNUM with the parameter b of the equation | ||
| 341 | * \param ctx BN_CTX object (optional) | ||
| 342 | * \return newly created EC_GROUP object with the specified parameters | ||
| 343 | */ | ||
| 344 | EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); | ||
| 345 | |||
| 346 | /** Creates a new EC_GROUP object with the specified parameters defined | ||
| 347 | * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) | ||
| 348 | * \param p BIGNUM with the polynomial defining the underlying field | ||
| 349 | * \param a BIGNUM with the parameter a of the equation | ||
| 350 | * \param b BIGNUM with the parameter b of the equation | ||
| 351 | * \param ctx BN_CTX object (optional) | ||
| 352 | * \return newly created EC_GROUP object with the specified parameters | ||
| 353 | */ | ||
| 354 | EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); | ||
| 355 | |||
| 356 | /** Creates a EC_GROUP object with a curve specified by a NID | ||
| 357 | * \param nid NID of the OID of the curve name | ||
| 358 | * \return newly created EC_GROUP object with specified curve or NULL | ||
| 359 | * if an error occurred | ||
| 360 | */ | ||
| 361 | EC_GROUP *EC_GROUP_new_by_curve_name(int nid); | ||
| 362 | |||
| 363 | |||
| 364 | /********************************************************************/ | ||
| 365 | /* handling of internal curves */ | ||
| 366 | /********************************************************************/ | ||
| 367 | |||
| 368 | typedef struct { | ||
| 369 | int nid; | ||
| 370 | const char *comment; | ||
| 371 | } EC_builtin_curve; | ||
| 372 | |||
| 373 | /* EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number | ||
| 374 | * of all available curves or zero if a error occurred. | ||
| 375 | * In case r ist not zero nitems EC_builtin_curve structures | ||
| 376 | * are filled with the data of the first nitems internal groups */ | ||
| 377 | size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); | ||
| 378 | |||
| 379 | |||
| 380 | /********************************************************************/ | ||
| 381 | /* EC_POINT functions */ | ||
| 382 | /********************************************************************/ | ||
| 383 | |||
| 384 | /** Creates a new EC_POINT object for the specified EC_GROUP | ||
| 385 | * \param group EC_GROUP the underlying EC_GROUP object | ||
| 386 | * \return newly created EC_POINT object or NULL if an error occurred | ||
| 387 | */ | ||
| 388 | EC_POINT *EC_POINT_new(const EC_GROUP *group); | ||
| 389 | |||
| 390 | /** Frees a EC_POINT object | ||
| 391 | * \param point EC_POINT object to be freed | ||
| 392 | */ | ||
| 393 | void EC_POINT_free(EC_POINT *point); | ||
| 394 | |||
| 395 | /** Clears and frees a EC_POINT object | ||
| 396 | * \param point EC_POINT object to be cleared and freed | ||
| 397 | */ | ||
| 398 | void EC_POINT_clear_free(EC_POINT *point); | ||
| 399 | |||
| 400 | /** Copies EC_POINT object | ||
| 401 | * \param dst destination EC_POINT object | ||
| 402 | * \param src source EC_POINT object | ||
| 403 | * \return 1 on success and 0 if an error occured | ||
| 404 | */ | ||
| 405 | int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); | ||
| 406 | |||
| 407 | /** Creates a new EC_POINT object and copies the content of the supplied | ||
| 408 | * EC_POINT | ||
| 409 | * \param src source EC_POINT object | ||
| 410 | * \param group underlying the EC_GROUP object | ||
| 411 | * \return newly created EC_POINT object or NULL if an error occurred | ||
| 412 | */ | ||
| 413 | EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); | ||
| 414 | |||
| 415 | /** Returns the EC_METHOD used in EC_POINT object | ||
| 416 | * \param point EC_POINT object | ||
| 417 | * \return the EC_METHOD used | ||
| 418 | */ | ||
| 419 | const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); | ||
| 420 | |||
| 421 | /** Sets a point to infinity (neutral element) | ||
| 422 | * \param group underlying EC_GROUP object | ||
| 423 | * \param point EC_POINT to set to infinity | ||
| 424 | * \return 1 on success and 0 if an error occured | ||
| 425 | */ | ||
| 426 | int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); | ||
| 427 | |||
| 428 | /** Sets the jacobian projective coordinates of a EC_POINT over GFp | ||
| 429 | * \param group underlying EC_GROUP object | ||
| 430 | * \param p EC_POINT object | ||
| 431 | * \param x BIGNUM with the x-coordinate | ||
| 432 | * \param y BIGNUM with the y-coordinate | ||
| 433 | * \param z BIGNUM with the z-coordinate | ||
| 434 | * \param ctx BN_CTX object (optional) | ||
| 435 | * \return 1 on success and 0 if an error occured | ||
| 436 | */ | ||
| 437 | int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | ||
| 438 | const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx); | ||
| 439 | |||
| 440 | /** Gets the jacobian projective coordinates of a EC_POINT over GFp | ||
| 441 | * \param group underlying EC_GROUP object | ||
| 442 | * \param p EC_POINT object | ||
| 443 | * \param x BIGNUM for the x-coordinate | ||
| 444 | * \param y BIGNUM for the y-coordinate | ||
| 445 | * \param z BIGNUM for the z-coordinate | ||
| 446 | * \param ctx BN_CTX object (optional) | ||
| 447 | * \return 1 on success and 0 if an error occured | ||
| 448 | */ | ||
| 449 | int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, | ||
| 450 | const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); | ||
| 451 | |||
| 452 | /** Sets the affine coordinates of a EC_POINT over GFp | ||
| 453 | * \param group underlying EC_GROUP object | ||
| 454 | * \param p EC_POINT object | ||
| 455 | * \param x BIGNUM with the x-coordinate | ||
| 456 | * \param y BIGNUM with the y-coordinate | ||
| 457 | * \param ctx BN_CTX object (optional) | ||
| 458 | * \return 1 on success and 0 if an error occured | ||
| 459 | */ | ||
| 460 | int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | ||
| 461 | const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); | ||
| 462 | |||
| 463 | /** Gets the affine coordinates of a EC_POINT over GFp | ||
| 464 | * \param group underlying EC_GROUP object | ||
| 465 | * \param p EC_POINT object | ||
| 466 | * \param x BIGNUM for the x-coordinate | ||
| 467 | * \param y BIGNUM for the y-coordinate | ||
| 468 | * \param ctx BN_CTX object (optional) | ||
| 469 | * \return 1 on success and 0 if an error occured | ||
| 470 | */ | ||
| 471 | int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, | ||
| 472 | const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx); | ||
| 473 | |||
| 474 | /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp | ||
| 475 | * \param group underlying EC_GROUP object | ||
| 476 | * \param p EC_POINT object | ||
| 477 | * \param x BIGNUM with x-coordinate | ||
| 478 | * \param y_bit integer with the y-Bit (either 0 or 1) | ||
| 479 | * \param ctx BN_CTX object (optional) | ||
| 480 | * \return 1 on success and 0 if an error occured | ||
| 481 | */ | ||
| 482 | int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, | ||
| 483 | const BIGNUM *x, int y_bit, BN_CTX *ctx); | ||
| 484 | |||
| 485 | /** Sets the affine coordinates of a EC_POINT over GF2m | ||
| 486 | * \param group underlying EC_GROUP object | ||
| 487 | * \param p EC_POINT object | ||
| 488 | * \param x BIGNUM with the x-coordinate | ||
| 489 | * \param y BIGNUM with the y-coordinate | ||
| 490 | * \param ctx BN_CTX object (optional) | ||
| 491 | * \return 1 on success and 0 if an error occured | ||
| 492 | */ | ||
| 493 | int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, | ||
| 494 | const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); | ||
| 495 | |||
| 496 | /** Gets the affine coordinates of a EC_POINT over GF2m | ||
| 497 | * \param group underlying EC_GROUP object | ||
| 498 | * \param p EC_POINT object | ||
| 499 | * \param x BIGNUM for the x-coordinate | ||
| 500 | * \param y BIGNUM for the y-coordinate | ||
| 501 | * \param ctx BN_CTX object (optional) | ||
| 502 | * \return 1 on success and 0 if an error occured | ||
| 503 | */ | ||
| 504 | int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group, | ||
| 505 | const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx); | ||
| 506 | |||
| 507 | /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m | ||
| 508 | * \param group underlying EC_GROUP object | ||
| 509 | * \param p EC_POINT object | ||
| 510 | * \param x BIGNUM with x-coordinate | ||
| 511 | * \param y_bit integer with the y-Bit (either 0 or 1) | ||
| 512 | * \param ctx BN_CTX object (optional) | ||
| 513 | * \return 1 on success and 0 if an error occured | ||
| 514 | */ | ||
| 515 | int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, | ||
| 516 | const BIGNUM *x, int y_bit, BN_CTX *ctx); | ||
| 517 | |||
| 518 | /** Encodes a EC_POINT object to a octet string | ||
| 519 | * \param group underlying EC_GROUP object | ||
| 520 | * \param p EC_POINT object | ||
| 521 | * \param form point conversion form | ||
| 522 | * \param buf memory buffer for the result. If NULL the function returns | ||
| 523 | * required buffer size. | ||
| 524 | * \param len length of the memory buffer | ||
| 525 | * \param ctx BN_CTX object (optional) | ||
| 526 | * \return the length of the encoded octet string or 0 if an error occurred | ||
| 527 | */ | ||
| 528 | size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, | ||
| 529 | point_conversion_form_t form, | ||
| 530 | unsigned char *buf, size_t len, BN_CTX *ctx); | ||
| 531 | |||
| 532 | /** Decodes a EC_POINT from a octet string | ||
| 533 | * \param group underlying EC_GROUP object | ||
| 534 | * \param p EC_POINT object | ||
| 535 | * \param buf memory buffer with the encoded ec point | ||
| 536 | * \param len length of the encoded ec point | ||
| 537 | * \param ctx BN_CTX object (optional) | ||
| 538 | * \return 1 on success and 0 if an error occured | ||
| 539 | */ | ||
| 540 | int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, | ||
| 541 | const unsigned char *buf, size_t len, BN_CTX *ctx); | ||
| 542 | |||
| 543 | /* other interfaces to point2oct/oct2point: */ | ||
| 544 | BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *, | ||
| 545 | point_conversion_form_t form, BIGNUM *, BN_CTX *); | ||
| 546 | EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *, | ||
| 547 | EC_POINT *, BN_CTX *); | ||
| 548 | char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, | ||
| 549 | point_conversion_form_t form, BN_CTX *); | ||
| 550 | EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, | ||
| 551 | EC_POINT *, BN_CTX *); | ||
| 552 | |||
| 553 | |||
| 554 | /********************************************************************/ | ||
| 555 | /* functions for doing EC_POINT arithmetic */ | ||
| 556 | /********************************************************************/ | ||
| 557 | |||
| 558 | /** Computes the sum of two EC_POINT | ||
| 559 | * \param group underlying EC_GROUP object | ||
| 560 | * \param r EC_POINT object for the result (r = a + b) | ||
| 561 | * \param a EC_POINT object with the first summand | ||
| 562 | * \param b EC_POINT object with the second summand | ||
| 563 | * \param ctx BN_CTX object (optional) | ||
| 564 | * \return 1 on success and 0 if an error occured | ||
| 565 | */ | ||
| 566 | int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); | ||
| 567 | |||
| 568 | /** Computes the double of a EC_POINT | ||
| 569 | * \param group underlying EC_GROUP object | ||
| 570 | * \param r EC_POINT object for the result (r = 2 * a) | ||
| 571 | * \param a EC_POINT object | ||
| 572 | * \param ctx BN_CTX object (optional) | ||
| 573 | * \return 1 on success and 0 if an error occured | ||
| 574 | */ | ||
| 575 | int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx); | ||
| 576 | |||
| 577 | /** Computes the inverse of a EC_POINT | ||
| 578 | * \param group underlying EC_GROUP object | ||
| 579 | * \param a EC_POINT object to be inverted (it's used for the result as well) | ||
| 580 | * \param ctx BN_CTX object (optional) | ||
| 581 | * \return 1 on success and 0 if an error occured | ||
| 582 | */ | ||
| 583 | int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); | ||
| 584 | |||
| 585 | /** Checks whether the point is the neutral element of the group | ||
| 586 | * \param group the underlying EC_GROUP object | ||
| 587 | * \param p EC_POINT object | ||
| 588 | * \return 1 if the point is the neutral element and 0 otherwise | ||
| 589 | */ | ||
| 590 | int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); | ||
| 591 | |||
| 592 | /** Checks whether the point is on the curve | ||
| 593 | * \param group underlying EC_GROUP object | ||
| 594 | * \param point EC_POINT object to check | ||
| 595 | * \param ctx BN_CTX object (optional) | ||
| 596 | * \return 1 if point if on the curve and 0 otherwise | ||
| 597 | */ | ||
| 598 | int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx); | ||
| 599 | |||
| 600 | /** Compares two EC_POINTs | ||
| 601 | * \param group underlying EC_GROUP object | ||
| 602 | * \param a first EC_POINT object | ||
| 603 | * \param b second EC_POINT object | ||
| 604 | * \param ctx BN_CTX object (optional) | ||
| 605 | * \return 0 if both points are equal and a value != 0 otherwise | ||
| 606 | */ | ||
| 607 | int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); | ||
| 608 | |||
| 609 | int EC_POINT_make_affine(const EC_GROUP *, EC_POINT *, BN_CTX *); | ||
| 610 | int EC_POINTs_make_affine(const EC_GROUP *, size_t num, EC_POINT *[], BN_CTX *); | ||
| 611 | |||
| 612 | /** Computes r = generator * n sum_{i=0}^num p[i] * m[i] | ||
| 613 | * \param group underlying EC_GROUP object | ||
| 614 | * \param r EC_POINT object for the result | ||
| 615 | * \param n BIGNUM with the multiplier for the group generator (optional) | ||
| 616 | * \param num number futher summands | ||
| 617 | * \param p array of size num of EC_POINT objects | ||
| 618 | * \param m array of size num of BIGNUM objects | ||
| 619 | * \param ctx BN_CTX object (optional) | ||
| 620 | * \return 1 on success and 0 if an error occured | ||
| 621 | */ | ||
| 622 | int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, size_t num, const EC_POINT *p[], const BIGNUM *m[], BN_CTX *ctx); | ||
| 623 | |||
| 624 | /** Computes r = generator * n + q * m | ||
| 625 | * \param group underlying EC_GROUP object | ||
| 626 | * \param r EC_POINT object for the result | ||
| 627 | * \param n BIGNUM with the multiplier for the group generator (optional) | ||
| 628 | * \param q EC_POINT object with the first factor of the second summand | ||
| 629 | * \param m BIGNUM with the second factor of the second summand | ||
| 630 | * \param ctx BN_CTX object (optional) | ||
| 631 | * \return 1 on success and 0 if an error occured | ||
| 632 | */ | ||
| 633 | int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); | ||
| 634 | |||
| 635 | /** Stores multiples of generator for faster point multiplication | ||
| 636 | * \param group EC_GROUP object | ||
| 637 | * \param ctx BN_CTX object (optional) | ||
| 638 | * \return 1 on success and 0 if an error occured | ||
| 639 | */ | ||
| 640 | int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); | ||
| 641 | |||
| 642 | /** Reports whether a precomputation has been done | ||
| 643 | * \param group EC_GROUP object | ||
| 644 | * \return 1 if a pre-computation has been done and 0 otherwise | ||
| 645 | */ | ||
| 646 | int EC_GROUP_have_precompute_mult(const EC_GROUP *group); | ||
| 647 | |||
| 648 | |||
| 649 | /********************************************************************/ | ||
| 650 | /* ASN1 stuff */ | ||
| 651 | /********************************************************************/ | ||
| 652 | |||
| 653 | /* EC_GROUP_get_basis_type() returns the NID of the basis type | ||
| 654 | * used to represent the field elements */ | ||
| 655 | int EC_GROUP_get_basis_type(const EC_GROUP *); | ||
| 656 | int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); | ||
| 657 | int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, | ||
| 658 | unsigned int *k2, unsigned int *k3); | ||
| 659 | |||
| 660 | #define OPENSSL_EC_NAMED_CURVE 0x001 | ||
| 661 | |||
| 662 | typedef struct ecpk_parameters_st ECPKPARAMETERS; | ||
| 663 | |||
| 664 | EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); | ||
| 665 | int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); | ||
| 666 | |||
| 667 | #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x) | ||
| 668 | #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x) | ||
| 669 | #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \ | ||
| 670 | (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x)) | ||
| 671 | #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \ | ||
| 672 | (unsigned char *)(x)) | ||
| 673 | |||
| 674 | #ifndef OPENSSL_NO_BIO | ||
| 675 | int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off); | ||
| 676 | #endif | ||
| 677 | #ifndef OPENSSL_NO_FP_API | ||
| 678 | int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); | ||
| 679 | #endif | ||
| 680 | |||
| 681 | |||
| 682 | /********************************************************************/ | ||
| 683 | /* EC_KEY functions */ | ||
| 684 | /********************************************************************/ | ||
| 685 | |||
| 686 | typedef struct ec_key_st EC_KEY; | ||
| 687 | |||
| 688 | /* some values for the encoding_flag */ | ||
| 689 | #define EC_PKEY_NO_PARAMETERS 0x001 | ||
| 690 | #define EC_PKEY_NO_PUBKEY 0x002 | ||
| 691 | |||
| 692 | /** Creates a new EC_KEY object. | ||
| 693 | * \return EC_KEY object or NULL if an error occurred. | ||
| 694 | */ | ||
| 695 | EC_KEY *EC_KEY_new(void); | ||
| 696 | |||
| 697 | /** Creates a new EC_KEY object using a named curve as underlying | ||
| 698 | * EC_GROUP object. | ||
| 699 | * \param nid NID of the named curve. | ||
| 700 | * \return EC_KEY object or NULL if an error occurred. | ||
| 701 | */ | ||
| 702 | EC_KEY *EC_KEY_new_by_curve_name(int nid); | ||
| 703 | |||
| 704 | /** Frees a EC_KEY object. | ||
| 705 | * \param key EC_KEY object to be freed. | ||
| 706 | */ | ||
| 707 | void EC_KEY_free(EC_KEY *key); | ||
| 708 | |||
| 709 | /** Copies a EC_KEY object. | ||
| 710 | * \param dst destination EC_KEY object | ||
| 711 | * \param src src EC_KEY object | ||
| 712 | * \return dst or NULL if an error occurred. | ||
| 713 | */ | ||
| 714 | EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); | ||
| 715 | |||
| 716 | /** Creates a new EC_KEY object and copies the content from src to it. | ||
| 717 | * \param src the source EC_KEY object | ||
| 718 | * \return newly created EC_KEY object or NULL if an error occurred. | ||
| 719 | */ | ||
| 720 | EC_KEY *EC_KEY_dup(const EC_KEY *src); | ||
| 721 | |||
| 722 | /** Increases the internal reference count of a EC_KEY object. | ||
| 723 | * \param key EC_KEY object | ||
| 724 | * \return 1 on success and 0 if an error occurred. | ||
| 725 | */ | ||
| 726 | int EC_KEY_up_ref(EC_KEY *key); | ||
| 727 | |||
| 728 | /** Returns the EC_GROUP object of a EC_KEY object | ||
| 729 | * \param key EC_KEY object | ||
| 730 | * \return the EC_GROUP object (possibly NULL). | ||
| 731 | */ | ||
| 732 | const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); | ||
| 733 | |||
| 734 | /** Sets the EC_GROUP of a EC_KEY object. | ||
| 735 | * \param key EC_KEY object | ||
| 736 | * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY | ||
| 737 | * object will use an own copy of the EC_GROUP). | ||
| 738 | * \return 1 on success and 0 if an error occurred. | ||
| 739 | */ | ||
| 740 | int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); | ||
| 741 | |||
| 742 | /** Returns the private key of a EC_KEY object. | ||
| 743 | * \param key EC_KEY object | ||
| 744 | * \return a BIGNUM with the private key (possibly NULL). | ||
| 745 | */ | ||
| 746 | const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); | ||
| 747 | |||
| 748 | /** Sets the private key of a EC_KEY object. | ||
| 749 | * \param key EC_KEY object | ||
| 750 | * \param prv BIGNUM with the private key (note: the EC_KEY object | ||
| 751 | * will use an own copy of the BIGNUM). | ||
| 752 | * \return 1 on success and 0 if an error occurred. | ||
| 753 | */ | ||
| 754 | int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); | ||
| 755 | |||
| 756 | /** Returns the public key of a EC_KEY object. | ||
| 757 | * \param key the EC_KEY object | ||
| 758 | * \return a EC_POINT object with the public key (possibly NULL) | ||
| 759 | */ | ||
| 760 | const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); | ||
| 761 | |||
| 762 | /** Sets the public key of a EC_KEY object. | ||
| 763 | * \param key EC_KEY object | ||
| 764 | * \param pub EC_POINT object with the public key (note: the EC_KEY object | ||
| 765 | * will use an own copy of the EC_POINT object). | ||
| 766 | * \return 1 on success and 0 if an error occurred. | ||
| 767 | */ | ||
| 768 | int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); | ||
| 769 | |||
| 770 | unsigned EC_KEY_get_enc_flags(const EC_KEY *key); | ||
| 771 | void EC_KEY_set_enc_flags(EC_KEY *, unsigned int); | ||
| 772 | point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *); | ||
| 773 | void EC_KEY_set_conv_form(EC_KEY *, point_conversion_form_t); | ||
| 774 | /* functions to set/get method specific data */ | ||
| 775 | void *EC_KEY_get_key_method_data(EC_KEY *, | ||
| 776 | void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *)); | ||
| 777 | void EC_KEY_insert_key_method_data(EC_KEY *, void *data, | ||
| 778 | void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *)); | ||
| 779 | /* wrapper functions for the underlying EC_GROUP object */ | ||
| 780 | void EC_KEY_set_asn1_flag(EC_KEY *, int); | ||
| 781 | |||
| 782 | /** Creates a table of pre-computed multiples of the generator to | ||
| 783 | * accelerate further EC_KEY operations. | ||
| 784 | * \param key EC_KEY object | ||
| 785 | * \param ctx BN_CTX object (optional) | ||
| 786 | * \return 1 on success and 0 if an error occurred. | ||
| 787 | */ | ||
| 788 | int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); | ||
| 789 | |||
| 790 | /** Creates a new ec private (and optional a new public) key. | ||
| 791 | * \param key EC_KEY object | ||
| 792 | * \return 1 on success and 0 if an error occurred. | ||
| 793 | */ | ||
| 794 | int EC_KEY_generate_key(EC_KEY *key); | ||
| 795 | |||
| 796 | /** Verifies that a private and/or public key is valid. | ||
| 797 | * \param key the EC_KEY object | ||
| 798 | * \return 1 on success and 0 otherwise. | ||
| 799 | */ | ||
| 800 | int EC_KEY_check_key(const EC_KEY *key); | ||
| 801 | |||
| 802 | |||
| 803 | /********************************************************************/ | ||
| 804 | /* de- and encoding functions for SEC1 ECPrivateKey */ | ||
| 805 | /********************************************************************/ | ||
| 806 | |||
| 807 | /** Decodes a private key from a memory buffer. | ||
| 808 | * \param key a pointer to a EC_KEY object which should be used (or NULL) | ||
| 809 | * \param in pointer to memory with the DER encoded private key | ||
| 810 | * \param len length of the DER encoded private key | ||
| 811 | * \return the decoded private key or NULL if an error occurred. | ||
| 812 | */ | ||
| 813 | EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len); | ||
| 814 | |||
| 815 | /** Encodes a private key object and stores the result in a buffer. | ||
| 816 | * \param key the EC_KEY object to encode | ||
| 817 | * \param out the buffer for the result (if NULL the function returns number | ||
| 818 | * of bytes needed). | ||
| 819 | * \return 1 on success and 0 if an error occurred. | ||
| 820 | */ | ||
| 821 | int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out); | ||
| 822 | |||
| 823 | |||
| 824 | /********************************************************************/ | ||
| 825 | /* de- and encoding functions for EC parameters */ | ||
| 826 | /********************************************************************/ | ||
| 827 | |||
| 828 | /** Decodes ec parameter from a memory buffer. | ||
| 829 | * \param key a pointer to a EC_KEY object which should be used (or NULL) | ||
| 830 | * \param in pointer to memory with the DER encoded ec parameters | ||
| 831 | * \param len length of the DER encoded ec parameters | ||
| 832 | * \return a EC_KEY object with the decoded parameters or NULL if an error | ||
| 833 | * occurred. | ||
| 834 | */ | ||
| 835 | EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len); | ||
| 836 | |||
| 837 | /** Encodes ec parameter and stores the result in a buffer. | ||
| 838 | * \param key the EC_KEY object with ec paramters to encode | ||
| 839 | * \param out the buffer for the result (if NULL the function returns number | ||
| 840 | * of bytes needed). | ||
| 841 | * \return 1 on success and 0 if an error occurred. | ||
| 842 | */ | ||
| 843 | int i2d_ECParameters(EC_KEY *key, unsigned char **out); | ||
| 844 | |||
| 845 | |||
| 846 | /********************************************************************/ | ||
| 847 | /* de- and encoding functions for EC public key */ | ||
| 848 | /* (octet string, not DER -- hence 'o2i' and 'i2o') */ | ||
| 849 | /********************************************************************/ | ||
| 850 | |||
| 851 | /** Decodes a ec public key from a octet string. | ||
| 852 | * \param key a pointer to a EC_KEY object which should be used | ||
| 853 | * \param in memory buffer with the encoded public key | ||
| 854 | * \param len length of the encoded public key | ||
| 855 | * \return EC_KEY object with decoded public key or NULL if an error | ||
| 856 | * occurred. | ||
| 857 | */ | ||
| 858 | EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len); | ||
| 859 | |||
| 860 | /** Encodes a ec public key in an octet string. | ||
| 861 | * \param key the EC_KEY object with the public key | ||
| 862 | * \param out the buffer for the result (if NULL the function returns number | ||
| 863 | * of bytes needed). | ||
| 864 | * \return 1 on success and 0 if an error occurred | ||
| 865 | */ | ||
| 866 | int i2o_ECPublicKey(EC_KEY *key, unsigned char **out); | ||
| 867 | |||
| 868 | #ifndef OPENSSL_NO_BIO | ||
| 869 | /** Prints out the ec parameters on human readable form. | ||
| 870 | * \param bp BIO object to which the information is printed | ||
| 871 | * \param key EC_KEY object | ||
| 872 | * \return 1 on success and 0 if an error occurred | ||
| 873 | */ | ||
| 874 | int ECParameters_print(BIO *bp, const EC_KEY *key); | ||
| 875 | |||
| 876 | /** Prints out the contents of a EC_KEY object | ||
| 877 | * \param bp BIO object to which the information is printed | ||
| 878 | * \param key EC_KEY object | ||
| 879 | * \param off line offset | ||
| 880 | * \return 1 on success and 0 if an error occurred | ||
| 881 | */ | ||
| 882 | int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); | ||
| 883 | |||
| 884 | #endif | ||
| 885 | #ifndef OPENSSL_NO_FP_API | ||
| 886 | /** Prints out the ec parameters on human readable form. | ||
| 887 | * \param fp file descriptor to which the information is printed | ||
| 888 | * \param key EC_KEY object | ||
| 889 | * \return 1 on success and 0 if an error occurred | ||
| 890 | */ | ||
| 891 | int ECParameters_print_fp(FILE *fp, const EC_KEY *key); | ||
| 892 | |||
| 893 | /** Prints out the contents of a EC_KEY object | ||
| 894 | * \param fp file descriptor to which the information is printed | ||
| 895 | * \param key EC_KEY object | ||
| 896 | * \param off line offset | ||
| 897 | * \return 1 on success and 0 if an error occurred | ||
| 898 | */ | ||
| 899 | int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); | ||
| 900 | |||
| 901 | #endif | ||
| 902 | |||
| 903 | #define ECParameters_dup(x) ASN1_dup_of(EC_KEY,i2d_ECParameters,d2i_ECParameters,x) | ||
| 904 | |||
| 905 | #ifndef __cplusplus | ||
| 906 | #if defined(__SUNPRO_C) | ||
| 907 | # if __SUNPRO_C >= 0x520 | ||
| 908 | # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) | ||
| 909 | # endif | ||
| 910 | # endif | ||
| 911 | #endif | ||
| 912 | |||
| 913 | #define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \ | ||
| 914 | EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, EVP_PKEY_OP_PARAMGEN, \ | ||
| 915 | EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL) | ||
| 916 | |||
| 917 | |||
| 918 | #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) | ||
| 919 | |||
| 920 | /* BEGIN ERROR CODES */ | ||
| 921 | /* The following lines are auto generated by the script mkerr.pl. Any changes | ||
| 922 | * made after this point may be overwritten when the script is next run. | ||
| 923 | */ | ||
| 924 | void ERR_load_EC_strings(void); | ||
| 925 | |||
| 926 | /* Error codes for the EC functions. */ | ||
| 927 | |||
| 928 | /* Function codes. */ | ||
| 929 | #define EC_F_COMPUTE_WNAF 143 | ||
| 930 | #define EC_F_D2I_ECPARAMETERS 144 | ||
| 931 | #define EC_F_D2I_ECPKPARAMETERS 145 | ||
| 932 | #define EC_F_D2I_ECPRIVATEKEY 146 | ||
| 933 | #define EC_F_DO_EC_KEY_PRINT 221 | ||
| 934 | #define EC_F_ECKEY_PARAM2TYPE 223 | ||
| 935 | #define EC_F_ECKEY_PARAM_DECODE 212 | ||
| 936 | #define EC_F_ECKEY_PRIV_DECODE 213 | ||
| 937 | #define EC_F_ECKEY_PRIV_ENCODE 214 | ||
| 938 | #define EC_F_ECKEY_PUB_DECODE 215 | ||
| 939 | #define EC_F_ECKEY_PUB_ENCODE 216 | ||
| 940 | #define EC_F_ECKEY_TYPE2PARAM 220 | ||
| 941 | #define EC_F_ECPARAMETERS_PRINT 147 | ||
| 942 | #define EC_F_ECPARAMETERS_PRINT_FP 148 | ||
| 943 | #define EC_F_ECPKPARAMETERS_PRINT 149 | ||
| 944 | #define EC_F_ECPKPARAMETERS_PRINT_FP 150 | ||
| 945 | #define EC_F_ECP_NIST_MOD_192 203 | ||
| 946 | #define EC_F_ECP_NIST_MOD_224 204 | ||
| 947 | #define EC_F_ECP_NIST_MOD_256 205 | ||
| 948 | #define EC_F_ECP_NIST_MOD_521 206 | ||
| 949 | #define EC_F_EC_ASN1_GROUP2CURVE 153 | ||
| 950 | #define EC_F_EC_ASN1_GROUP2FIELDID 154 | ||
| 951 | #define EC_F_EC_ASN1_GROUP2PARAMETERS 155 | ||
| 952 | #define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156 | ||
| 953 | #define EC_F_EC_ASN1_PARAMETERS2GROUP 157 | ||
| 954 | #define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158 | ||
| 955 | #define EC_F_EC_EX_DATA_SET_DATA 211 | ||
| 956 | #define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208 | ||
| 957 | #define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159 | ||
| 958 | #define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195 | ||
| 959 | #define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160 | ||
| 960 | #define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161 | ||
| 961 | #define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162 | ||
| 962 | #define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163 | ||
| 963 | #define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164 | ||
| 964 | #define EC_F_EC_GFP_MONT_FIELD_DECODE 133 | ||
| 965 | #define EC_F_EC_GFP_MONT_FIELD_ENCODE 134 | ||
| 966 | #define EC_F_EC_GFP_MONT_FIELD_MUL 131 | ||
| 967 | #define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209 | ||
| 968 | #define EC_F_EC_GFP_MONT_FIELD_SQR 132 | ||
| 969 | #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189 | ||
| 970 | #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135 | ||
| 971 | #define EC_F_EC_GFP_NIST_FIELD_MUL 200 | ||
| 972 | #define EC_F_EC_GFP_NIST_FIELD_SQR 201 | ||
| 973 | #define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202 | ||
| 974 | #define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165 | ||
| 975 | #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166 | ||
| 976 | #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100 | ||
| 977 | #define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101 | ||
| 978 | #define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102 | ||
| 979 | #define EC_F_EC_GFP_SIMPLE_OCT2POINT 103 | ||
| 980 | #define EC_F_EC_GFP_SIMPLE_POINT2OCT 104 | ||
| 981 | #define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137 | ||
| 982 | #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167 | ||
| 983 | #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105 | ||
| 984 | #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168 | ||
| 985 | #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128 | ||
| 986 | #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169 | ||
| 987 | #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129 | ||
| 988 | #define EC_F_EC_GROUP_CHECK 170 | ||
| 989 | #define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171 | ||
| 990 | #define EC_F_EC_GROUP_COPY 106 | ||
| 991 | #define EC_F_EC_GROUP_GET0_GENERATOR 139 | ||
| 992 | #define EC_F_EC_GROUP_GET_COFACTOR 140 | ||
| 993 | #define EC_F_EC_GROUP_GET_CURVE_GF2M 172 | ||
| 994 | #define EC_F_EC_GROUP_GET_CURVE_GFP 130 | ||
| 995 | #define EC_F_EC_GROUP_GET_DEGREE 173 | ||
| 996 | #define EC_F_EC_GROUP_GET_ORDER 141 | ||
| 997 | #define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193 | ||
| 998 | #define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194 | ||
| 999 | #define EC_F_EC_GROUP_NEW 108 | ||
| 1000 | #define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174 | ||
| 1001 | #define EC_F_EC_GROUP_NEW_FROM_DATA 175 | ||
| 1002 | #define EC_F_EC_GROUP_PRECOMPUTE_MULT 142 | ||
| 1003 | #define EC_F_EC_GROUP_SET_CURVE_GF2M 176 | ||
| 1004 | #define EC_F_EC_GROUP_SET_CURVE_GFP 109 | ||
| 1005 | #define EC_F_EC_GROUP_SET_EXTRA_DATA 110 | ||
| 1006 | #define EC_F_EC_GROUP_SET_GENERATOR 111 | ||
| 1007 | #define EC_F_EC_KEY_CHECK_KEY 177 | ||
| 1008 | #define EC_F_EC_KEY_COPY 178 | ||
| 1009 | #define EC_F_EC_KEY_GENERATE_KEY 179 | ||
| 1010 | #define EC_F_EC_KEY_NEW 182 | ||
| 1011 | #define EC_F_EC_KEY_PRINT 180 | ||
| 1012 | #define EC_F_EC_KEY_PRINT_FP 181 | ||
| 1013 | #define EC_F_EC_POINTS_MAKE_AFFINE 136 | ||
| 1014 | #define EC_F_EC_POINT_ADD 112 | ||
| 1015 | #define EC_F_EC_POINT_CMP 113 | ||
| 1016 | #define EC_F_EC_POINT_COPY 114 | ||
| 1017 | #define EC_F_EC_POINT_DBL 115 | ||
| 1018 | #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183 | ||
| 1019 | #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116 | ||
| 1020 | #define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117 | ||
| 1021 | #define EC_F_EC_POINT_INVERT 210 | ||
| 1022 | #define EC_F_EC_POINT_IS_AT_INFINITY 118 | ||
| 1023 | #define EC_F_EC_POINT_IS_ON_CURVE 119 | ||
| 1024 | #define EC_F_EC_POINT_MAKE_AFFINE 120 | ||
| 1025 | #define EC_F_EC_POINT_MUL 184 | ||
| 1026 | #define EC_F_EC_POINT_NEW 121 | ||
| 1027 | #define EC_F_EC_POINT_OCT2POINT 122 | ||
| 1028 | #define EC_F_EC_POINT_POINT2OCT 123 | ||
| 1029 | #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185 | ||
| 1030 | #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124 | ||
| 1031 | #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186 | ||
| 1032 | #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125 | ||
| 1033 | #define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126 | ||
| 1034 | #define EC_F_EC_POINT_SET_TO_INFINITY 127 | ||
| 1035 | #define EC_F_EC_PRE_COMP_DUP 207 | ||
| 1036 | #define EC_F_EC_PRE_COMP_NEW 196 | ||
| 1037 | #define EC_F_EC_WNAF_MUL 187 | ||
| 1038 | #define EC_F_EC_WNAF_PRECOMPUTE_MULT 188 | ||
| 1039 | #define EC_F_I2D_ECPARAMETERS 190 | ||
| 1040 | #define EC_F_I2D_ECPKPARAMETERS 191 | ||
| 1041 | #define EC_F_I2D_ECPRIVATEKEY 192 | ||
| 1042 | #define EC_F_I2O_ECPUBLICKEY 151 | ||
| 1043 | #define EC_F_O2I_ECPUBLICKEY 152 | ||
| 1044 | #define EC_F_OLD_EC_PRIV_DECODE 222 | ||
| 1045 | #define EC_F_PKEY_EC_CTRL 197 | ||
| 1046 | #define EC_F_PKEY_EC_CTRL_STR 198 | ||
| 1047 | #define EC_F_PKEY_EC_DERIVE 217 | ||
| 1048 | #define EC_F_PKEY_EC_KEYGEN 199 | ||
| 1049 | #define EC_F_PKEY_EC_PARAMGEN 219 | ||
| 1050 | #define EC_F_PKEY_EC_SIGN 218 | ||
| 1051 | |||
| 1052 | /* Reason codes. */ | ||
| 1053 | #define EC_R_ASN1_ERROR 115 | ||
| 1054 | #define EC_R_ASN1_UNKNOWN_FIELD 116 | ||
| 1055 | #define EC_R_BUFFER_TOO_SMALL 100 | ||
| 1056 | #define EC_R_D2I_ECPKPARAMETERS_FAILURE 117 | ||
| 1057 | #define EC_R_DECODE_ERROR 142 | ||
| 1058 | #define EC_R_DISCRIMINANT_IS_ZERO 118 | ||
| 1059 | #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119 | ||
| 1060 | #define EC_R_FIELD_TOO_LARGE 143 | ||
| 1061 | #define EC_R_GROUP2PKPARAMETERS_FAILURE 120 | ||
| 1062 | #define EC_R_I2D_ECPKPARAMETERS_FAILURE 121 | ||
| 1063 | #define EC_R_INCOMPATIBLE_OBJECTS 101 | ||
| 1064 | #define EC_R_INVALID_ARGUMENT 112 | ||
| 1065 | #define EC_R_INVALID_COMPRESSED_POINT 110 | ||
| 1066 | #define EC_R_INVALID_COMPRESSION_BIT 109 | ||
| 1067 | #define EC_R_INVALID_CURVE 141 | ||
| 1068 | #define EC_R_INVALID_DIGEST_TYPE 138 | ||
| 1069 | #define EC_R_INVALID_ENCODING 102 | ||
| 1070 | #define EC_R_INVALID_FIELD 103 | ||
| 1071 | #define EC_R_INVALID_FORM 104 | ||
| 1072 | #define EC_R_INVALID_GROUP_ORDER 122 | ||
| 1073 | #define EC_R_INVALID_PENTANOMIAL_BASIS 132 | ||
| 1074 | #define EC_R_INVALID_PRIVATE_KEY 123 | ||
| 1075 | #define EC_R_INVALID_TRINOMIAL_BASIS 137 | ||
| 1076 | #define EC_R_KEYS_NOT_SET 140 | ||
| 1077 | #define EC_R_MISSING_PARAMETERS 124 | ||
| 1078 | #define EC_R_MISSING_PRIVATE_KEY 125 | ||
| 1079 | #define EC_R_NOT_A_NIST_PRIME 135 | ||
| 1080 | #define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136 | ||
| 1081 | #define EC_R_NOT_IMPLEMENTED 126 | ||
| 1082 | #define EC_R_NOT_INITIALIZED 111 | ||
| 1083 | #define EC_R_NO_FIELD_MOD 133 | ||
| 1084 | #define EC_R_NO_PARAMETERS_SET 139 | ||
| 1085 | #define EC_R_PASSED_NULL_PARAMETER 134 | ||
| 1086 | #define EC_R_PKPARAMETERS2GROUP_FAILURE 127 | ||
| 1087 | #define EC_R_POINT_AT_INFINITY 106 | ||
| 1088 | #define EC_R_POINT_IS_NOT_ON_CURVE 107 | ||
| 1089 | #define EC_R_SLOT_FULL 108 | ||
| 1090 | #define EC_R_UNDEFINED_GENERATOR 113 | ||
| 1091 | #define EC_R_UNDEFINED_ORDER 128 | ||
| 1092 | #define EC_R_UNKNOWN_GROUP 129 | ||
| 1093 | #define EC_R_UNKNOWN_ORDER 114 | ||
| 1094 | #define EC_R_UNSUPPORTED_FIELD 131 | ||
| 1095 | #define EC_R_WRONG_ORDER 130 | ||
| 1096 | |||
| 1097 | #ifdef __cplusplus | ||
| 1098 | } | ||
| 1099 | #endif | ||
| 1100 | #endif | ||
