1*de0e0e4dSAntonio Huete Jimenez /* $OpenBSD: ec.h,v 1.28 2022/07/12 14:42:49 kn Exp $ */ 2f5b1c8a1SJohn Marino /* 3f5b1c8a1SJohn Marino * Originally written by Bodo Moeller for the OpenSSL project. 4f5b1c8a1SJohn Marino */ 5f5b1c8a1SJohn Marino /** 6f5b1c8a1SJohn Marino * \file crypto/ec/ec.h Include file for the OpenSSL EC functions 7f5b1c8a1SJohn Marino * \author Originally written by Bodo Moeller for the OpenSSL project 8f5b1c8a1SJohn Marino */ 9f5b1c8a1SJohn Marino /* ==================================================================== 10f5b1c8a1SJohn Marino * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. 11f5b1c8a1SJohn Marino * 12f5b1c8a1SJohn Marino * Redistribution and use in source and binary forms, with or without 13f5b1c8a1SJohn Marino * modification, are permitted provided that the following conditions 14f5b1c8a1SJohn Marino * are met: 15f5b1c8a1SJohn Marino * 16f5b1c8a1SJohn Marino * 1. Redistributions of source code must retain the above copyright 17f5b1c8a1SJohn Marino * notice, this list of conditions and the following disclaimer. 18f5b1c8a1SJohn Marino * 19f5b1c8a1SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright 20f5b1c8a1SJohn Marino * notice, this list of conditions and the following disclaimer in 21f5b1c8a1SJohn Marino * the documentation and/or other materials provided with the 22f5b1c8a1SJohn Marino * distribution. 23f5b1c8a1SJohn Marino * 24f5b1c8a1SJohn Marino * 3. All advertising materials mentioning features or use of this 25f5b1c8a1SJohn Marino * software must display the following acknowledgment: 26f5b1c8a1SJohn Marino * "This product includes software developed by the OpenSSL Project 27f5b1c8a1SJohn Marino * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 28f5b1c8a1SJohn Marino * 29f5b1c8a1SJohn Marino * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 30f5b1c8a1SJohn Marino * endorse or promote products derived from this software without 31f5b1c8a1SJohn Marino * prior written permission. For written permission, please contact 32f5b1c8a1SJohn Marino * openssl-core@openssl.org. 33f5b1c8a1SJohn Marino * 34f5b1c8a1SJohn Marino * 5. Products derived from this software may not be called "OpenSSL" 35f5b1c8a1SJohn Marino * nor may "OpenSSL" appear in their names without prior written 36f5b1c8a1SJohn Marino * permission of the OpenSSL Project. 37f5b1c8a1SJohn Marino * 38f5b1c8a1SJohn Marino * 6. Redistributions of any form whatsoever must retain the following 39f5b1c8a1SJohn Marino * acknowledgment: 40f5b1c8a1SJohn Marino * "This product includes software developed by the OpenSSL Project 41f5b1c8a1SJohn Marino * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 42f5b1c8a1SJohn Marino * 43f5b1c8a1SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 44f5b1c8a1SJohn Marino * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45f5b1c8a1SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46f5b1c8a1SJohn Marino * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 47f5b1c8a1SJohn Marino * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 48f5b1c8a1SJohn Marino * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 49f5b1c8a1SJohn Marino * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 50f5b1c8a1SJohn Marino * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 51f5b1c8a1SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 52f5b1c8a1SJohn Marino * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 53f5b1c8a1SJohn Marino * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 54f5b1c8a1SJohn Marino * OF THE POSSIBILITY OF SUCH DAMAGE. 55f5b1c8a1SJohn Marino * ==================================================================== 56f5b1c8a1SJohn Marino * 57f5b1c8a1SJohn Marino * This product includes cryptographic software written by Eric Young 58f5b1c8a1SJohn Marino * (eay@cryptsoft.com). This product includes software written by Tim 59f5b1c8a1SJohn Marino * Hudson (tjh@cryptsoft.com). 60f5b1c8a1SJohn Marino * 61f5b1c8a1SJohn Marino */ 62f5b1c8a1SJohn Marino /* ==================================================================== 63f5b1c8a1SJohn Marino * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 64f5b1c8a1SJohn Marino * 65f5b1c8a1SJohn Marino * Portions of the attached software ("Contribution") are developed by 66f5b1c8a1SJohn Marino * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. 67f5b1c8a1SJohn Marino * 68f5b1c8a1SJohn Marino * The Contribution is licensed pursuant to the OpenSSL open source 69f5b1c8a1SJohn Marino * license provided above. 70f5b1c8a1SJohn Marino * 71f5b1c8a1SJohn Marino * The elliptic curve binary polynomial software is originally written by 72f5b1c8a1SJohn Marino * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. 73f5b1c8a1SJohn Marino * 74f5b1c8a1SJohn Marino */ 75f5b1c8a1SJohn Marino 76f5b1c8a1SJohn Marino #ifndef HEADER_EC_H 77f5b1c8a1SJohn Marino #define HEADER_EC_H 78f5b1c8a1SJohn Marino 79f5b1c8a1SJohn Marino #include <openssl/opensslconf.h> 80f5b1c8a1SJohn Marino 81f5b1c8a1SJohn Marino #ifdef OPENSSL_NO_EC 82f5b1c8a1SJohn Marino #error EC is disabled. 83f5b1c8a1SJohn Marino #endif 84f5b1c8a1SJohn Marino 85f5b1c8a1SJohn Marino #include <openssl/asn1.h> 86f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_DEPRECATED 87f5b1c8a1SJohn Marino #include <openssl/bn.h> 88f5b1c8a1SJohn Marino #endif 89f5b1c8a1SJohn Marino 90f5b1c8a1SJohn Marino #ifdef __cplusplus 91f5b1c8a1SJohn Marino extern "C" { 92f5b1c8a1SJohn Marino #elif defined(__SUNPRO_C) 93f5b1c8a1SJohn Marino # if __SUNPRO_C >= 0x520 94f5b1c8a1SJohn Marino # pragma error_messages (off,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) 95f5b1c8a1SJohn Marino # endif 96f5b1c8a1SJohn Marino #endif 97f5b1c8a1SJohn Marino 98f5b1c8a1SJohn Marino 99f5b1c8a1SJohn Marino #ifndef OPENSSL_ECC_MAX_FIELD_BITS 100f5b1c8a1SJohn Marino #define OPENSSL_ECC_MAX_FIELD_BITS 661 101f5b1c8a1SJohn Marino #endif 102f5b1c8a1SJohn Marino 103f5b1c8a1SJohn Marino /** Enum for the point conversion form as defined in X9.62 (ECDSA) 104f5b1c8a1SJohn Marino * for the encoding of a elliptic curve point (x,y) */ 105f5b1c8a1SJohn Marino typedef enum { 106f5b1c8a1SJohn Marino /** the point is encoded as z||x, where the octet z specifies 107f5b1c8a1SJohn Marino * which solution of the quadratic equation y is */ 108f5b1c8a1SJohn Marino POINT_CONVERSION_COMPRESSED = 2, 109f5b1c8a1SJohn Marino /** the point is encoded as z||x||y, where z is the octet 0x02 */ 110f5b1c8a1SJohn Marino POINT_CONVERSION_UNCOMPRESSED = 4, 111f5b1c8a1SJohn Marino /** the point is encoded as z||x||y, where the octet z specifies 112f5b1c8a1SJohn Marino * which solution of the quadratic equation y is */ 113f5b1c8a1SJohn Marino POINT_CONVERSION_HYBRID = 6 114f5b1c8a1SJohn Marino } point_conversion_form_t; 115f5b1c8a1SJohn Marino 116f5b1c8a1SJohn Marino 117f5b1c8a1SJohn Marino typedef struct ec_method_st EC_METHOD; 118f5b1c8a1SJohn Marino 119f5b1c8a1SJohn Marino typedef struct ec_group_st 120f5b1c8a1SJohn Marino /* 121f5b1c8a1SJohn Marino EC_METHOD *meth; 122f5b1c8a1SJohn Marino -- field definition 123f5b1c8a1SJohn Marino -- curve coefficients 124f5b1c8a1SJohn Marino -- optional generator with associated information (order, cofactor) 125f5b1c8a1SJohn Marino -- optional extra data (precomputed table for fast computation of multiples of generator) 126f5b1c8a1SJohn Marino -- ASN1 stuff 127f5b1c8a1SJohn Marino */ 128f5b1c8a1SJohn Marino EC_GROUP; 129f5b1c8a1SJohn Marino 130f5b1c8a1SJohn Marino typedef struct ec_point_st EC_POINT; 131f5b1c8a1SJohn Marino 132f5b1c8a1SJohn Marino 133f5b1c8a1SJohn Marino /********************************************************************/ 134f5b1c8a1SJohn Marino /* EC_METHODs for curves over GF(p) */ 135f5b1c8a1SJohn Marino /********************************************************************/ 136f5b1c8a1SJohn Marino 137f5b1c8a1SJohn Marino /** Returns the basic GFp ec methods which provides the basis for the 138f5b1c8a1SJohn Marino * optimized methods. 139f5b1c8a1SJohn Marino * \return EC_METHOD object 140f5b1c8a1SJohn Marino */ 141f5b1c8a1SJohn Marino const EC_METHOD *EC_GFp_simple_method(void); 142f5b1c8a1SJohn Marino 143f5b1c8a1SJohn Marino /** Returns GFp methods using montgomery multiplication. 144f5b1c8a1SJohn Marino * \return EC_METHOD object 145f5b1c8a1SJohn Marino */ 146f5b1c8a1SJohn Marino const EC_METHOD *EC_GFp_mont_method(void); 147f5b1c8a1SJohn Marino 148f5b1c8a1SJohn Marino /** Returns GFp methods using optimized methods for NIST recommended curves 149f5b1c8a1SJohn Marino * \return EC_METHOD object 150f5b1c8a1SJohn Marino */ 151f5b1c8a1SJohn Marino const EC_METHOD *EC_GFp_nist_method(void); 152f5b1c8a1SJohn Marino 153f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_EC_NISTP_64_GCC_128 154f5b1c8a1SJohn Marino /** Returns 64-bit optimized methods for nistp224 155f5b1c8a1SJohn Marino * \return EC_METHOD object 156f5b1c8a1SJohn Marino */ 157f5b1c8a1SJohn Marino const EC_METHOD *EC_GFp_nistp224_method(void); 158f5b1c8a1SJohn Marino 159f5b1c8a1SJohn Marino /** Returns 64-bit optimized methods for nistp256 160f5b1c8a1SJohn Marino * \return EC_METHOD object 161f5b1c8a1SJohn Marino */ 162f5b1c8a1SJohn Marino const EC_METHOD *EC_GFp_nistp256_method(void); 163f5b1c8a1SJohn Marino 164f5b1c8a1SJohn Marino /** Returns 64-bit optimized methods for nistp521 165f5b1c8a1SJohn Marino * \return EC_METHOD object 166f5b1c8a1SJohn Marino */ 167f5b1c8a1SJohn Marino const EC_METHOD *EC_GFp_nistp521_method(void); 168f5b1c8a1SJohn Marino #endif 169f5b1c8a1SJohn Marino 170f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_EC2M 171f5b1c8a1SJohn Marino /********************************************************************/ 172f5b1c8a1SJohn Marino /* EC_METHOD for curves over GF(2^m) */ 173f5b1c8a1SJohn Marino /********************************************************************/ 174f5b1c8a1SJohn Marino 175f5b1c8a1SJohn Marino /** Returns the basic GF2m ec method 176f5b1c8a1SJohn Marino * \return EC_METHOD object 177f5b1c8a1SJohn Marino */ 178f5b1c8a1SJohn Marino const EC_METHOD *EC_GF2m_simple_method(void); 179f5b1c8a1SJohn Marino 180f5b1c8a1SJohn Marino #endif 181f5b1c8a1SJohn Marino 182f5b1c8a1SJohn Marino 183f5b1c8a1SJohn Marino /********************************************************************/ 184f5b1c8a1SJohn Marino /* EC_GROUP functions */ 185f5b1c8a1SJohn Marino /********************************************************************/ 186f5b1c8a1SJohn Marino 187f5b1c8a1SJohn Marino /** Creates a new EC_GROUP object 188f5b1c8a1SJohn Marino * \param meth EC_METHOD to use 189f5b1c8a1SJohn Marino * \return newly created EC_GROUP object or NULL in case of an error. 190f5b1c8a1SJohn Marino */ 191f5b1c8a1SJohn Marino EC_GROUP *EC_GROUP_new(const EC_METHOD *meth); 192f5b1c8a1SJohn Marino 193f5b1c8a1SJohn Marino /** Frees a EC_GROUP object 194f5b1c8a1SJohn Marino * \param group EC_GROUP object to be freed. 195f5b1c8a1SJohn Marino */ 196f5b1c8a1SJohn Marino void EC_GROUP_free(EC_GROUP *group); 197f5b1c8a1SJohn Marino 198f5b1c8a1SJohn Marino /** Clears and frees a EC_GROUP object 199f5b1c8a1SJohn Marino * \param group EC_GROUP object to be cleared and freed. 200f5b1c8a1SJohn Marino */ 201f5b1c8a1SJohn Marino void EC_GROUP_clear_free(EC_GROUP *group); 202f5b1c8a1SJohn Marino 203f5b1c8a1SJohn Marino /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD. 204f5b1c8a1SJohn Marino * \param dst destination EC_GROUP object 205f5b1c8a1SJohn Marino * \param src source EC_GROUP object 206f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 207f5b1c8a1SJohn Marino */ 208f5b1c8a1SJohn Marino int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src); 209f5b1c8a1SJohn Marino 210f5b1c8a1SJohn Marino /** Creates a new EC_GROUP object and copies the copies the content 211f5b1c8a1SJohn Marino * form src to the newly created EC_KEY object 212f5b1c8a1SJohn Marino * \param src source EC_GROUP object 213f5b1c8a1SJohn Marino * \return newly created EC_GROUP object or NULL in case of an error. 214f5b1c8a1SJohn Marino */ 215f5b1c8a1SJohn Marino EC_GROUP *EC_GROUP_dup(const EC_GROUP *src); 216f5b1c8a1SJohn Marino 217f5b1c8a1SJohn Marino /** Returns the EC_METHOD of the EC_GROUP object. 218f5b1c8a1SJohn Marino * \param group EC_GROUP object 219f5b1c8a1SJohn Marino * \return EC_METHOD used in this EC_GROUP object. 220f5b1c8a1SJohn Marino */ 221f5b1c8a1SJohn Marino const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group); 222f5b1c8a1SJohn Marino 223f5b1c8a1SJohn Marino /** Returns the field type of the EC_METHOD. 224f5b1c8a1SJohn Marino * \param meth EC_METHOD object 225f5b1c8a1SJohn Marino * \return NID of the underlying field type OID. 226f5b1c8a1SJohn Marino */ 227f5b1c8a1SJohn Marino int EC_METHOD_get_field_type(const EC_METHOD *meth); 228f5b1c8a1SJohn Marino 229f5b1c8a1SJohn Marino /** Sets the generator and it's order/cofactor of a EC_GROUP object. 230f5b1c8a1SJohn Marino * \param group EC_GROUP object 231f5b1c8a1SJohn Marino * \param generator EC_POINT object with the generator. 232f5b1c8a1SJohn Marino * \param order the order of the group generated by the generator. 233f5b1c8a1SJohn Marino * \param cofactor the index of the sub-group generated by the generator 234f5b1c8a1SJohn Marino * in the group of all points on the elliptic curve. 235f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 236f5b1c8a1SJohn Marino */ 237f5b1c8a1SJohn Marino int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator, const BIGNUM *order, const BIGNUM *cofactor); 238f5b1c8a1SJohn Marino 239f5b1c8a1SJohn Marino /** Returns the generator of a EC_GROUP object. 240f5b1c8a1SJohn Marino * \param group EC_GROUP object 241f5b1c8a1SJohn Marino * \return the currently used generator (possibly NULL). 242f5b1c8a1SJohn Marino */ 243f5b1c8a1SJohn Marino const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group); 244f5b1c8a1SJohn Marino 245f5b1c8a1SJohn Marino /** Gets the order of a EC_GROUP 246f5b1c8a1SJohn Marino * \param group EC_GROUP object 247f5b1c8a1SJohn Marino * \param order BIGNUM to which the order is copied 248f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 249f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 250f5b1c8a1SJohn Marino */ 251f5b1c8a1SJohn Marino int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx); 252f5b1c8a1SJohn Marino 253*de0e0e4dSAntonio Huete Jimenez int EC_GROUP_order_bits(const EC_GROUP *group); 254*de0e0e4dSAntonio Huete Jimenez 255f5b1c8a1SJohn Marino /** Gets the cofactor of a EC_GROUP 256f5b1c8a1SJohn Marino * \param group EC_GROUP object 257f5b1c8a1SJohn Marino * \param cofactor BIGNUM to which the cofactor is copied 258f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 259f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 260f5b1c8a1SJohn Marino */ 261f5b1c8a1SJohn Marino int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx); 262f5b1c8a1SJohn Marino 263f5b1c8a1SJohn Marino /** Sets the name of a EC_GROUP object 264f5b1c8a1SJohn Marino * \param group EC_GROUP object 265f5b1c8a1SJohn Marino * \param nid NID of the curve name OID 266f5b1c8a1SJohn Marino */ 267f5b1c8a1SJohn Marino void EC_GROUP_set_curve_name(EC_GROUP *group, int nid); 268f5b1c8a1SJohn Marino 269f5b1c8a1SJohn Marino /** Returns the curve name of a EC_GROUP object 270f5b1c8a1SJohn Marino * \param group EC_GROUP object 271f5b1c8a1SJohn Marino * \return NID of the curve name OID or 0 if not set. 272f5b1c8a1SJohn Marino */ 273f5b1c8a1SJohn Marino int EC_GROUP_get_curve_name(const EC_GROUP *group); 274f5b1c8a1SJohn Marino 275f5b1c8a1SJohn Marino void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag); 276f5b1c8a1SJohn Marino int EC_GROUP_get_asn1_flag(const EC_GROUP *group); 277f5b1c8a1SJohn Marino 278f5b1c8a1SJohn Marino void EC_GROUP_set_point_conversion_form(EC_GROUP *group, point_conversion_form_t form); 279f5b1c8a1SJohn Marino point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *); 280f5b1c8a1SJohn Marino 281f5b1c8a1SJohn Marino unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x); 282f5b1c8a1SJohn Marino size_t EC_GROUP_get_seed_len(const EC_GROUP *); 283f5b1c8a1SJohn Marino size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len); 284f5b1c8a1SJohn Marino 285*de0e0e4dSAntonio Huete Jimenez int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, 286*de0e0e4dSAntonio Huete Jimenez const BIGNUM *b, BN_CTX *ctx); 287*de0e0e4dSAntonio Huete Jimenez int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, 288*de0e0e4dSAntonio Huete Jimenez BN_CTX *ctx); 289*de0e0e4dSAntonio Huete Jimenez #if !defined(LIBRESSL_INTERNAL) 290f5b1c8a1SJohn Marino /** Sets the parameter of a ec over GFp defined by y^2 = x^3 + a*x + b 291f5b1c8a1SJohn Marino * \param group EC_GROUP object 292f5b1c8a1SJohn Marino * \param p BIGNUM with the prime number 293f5b1c8a1SJohn Marino * \param a BIGNUM with parameter a of the equation 294f5b1c8a1SJohn Marino * \param b BIGNUM with parameter b of the equation 295f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 296f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 297f5b1c8a1SJohn Marino */ 298f5b1c8a1SJohn Marino int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); 299f5b1c8a1SJohn Marino 300f5b1c8a1SJohn Marino /** Gets the parameter of the ec over GFp defined by y^2 = x^3 + a*x + b 301f5b1c8a1SJohn Marino * \param group EC_GROUP object 302f5b1c8a1SJohn Marino * \param p BIGNUM for the prime number 303f5b1c8a1SJohn Marino * \param a BIGNUM for parameter a of the equation 304f5b1c8a1SJohn Marino * \param b BIGNUM for parameter b of the equation 305f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 306f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 307f5b1c8a1SJohn Marino */ 308f5b1c8a1SJohn Marino int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx); 309f5b1c8a1SJohn Marino 310f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_EC2M 311f5b1c8a1SJohn Marino /** Sets the parameter of a ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b 312f5b1c8a1SJohn Marino * \param group EC_GROUP object 313f5b1c8a1SJohn Marino * \param p BIGNUM with the polynomial defining the underlying field 314f5b1c8a1SJohn Marino * \param a BIGNUM with parameter a of the equation 315f5b1c8a1SJohn Marino * \param b BIGNUM with parameter b of the equation 316f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 317f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 318f5b1c8a1SJohn Marino */ 319f5b1c8a1SJohn Marino int EC_GROUP_set_curve_GF2m(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); 320f5b1c8a1SJohn Marino 321f5b1c8a1SJohn Marino /** Gets the parameter of the ec over GF2m defined by y^2 + x*y = x^3 + a*x^2 + b 322f5b1c8a1SJohn Marino * \param group EC_GROUP object 323f5b1c8a1SJohn Marino * \param p BIGNUM for the polynomial defining the underlying field 324f5b1c8a1SJohn Marino * \param a BIGNUM for parameter a of the equation 325f5b1c8a1SJohn Marino * \param b BIGNUM for parameter b of the equation 326f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 327f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 328f5b1c8a1SJohn Marino */ 329f5b1c8a1SJohn Marino int EC_GROUP_get_curve_GF2m(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b, BN_CTX *ctx); 330f5b1c8a1SJohn Marino #endif 331*de0e0e4dSAntonio Huete Jimenez #endif 332*de0e0e4dSAntonio Huete Jimenez 333f5b1c8a1SJohn Marino /** Returns the number of bits needed to represent a field element 334f5b1c8a1SJohn Marino * \param group EC_GROUP object 335f5b1c8a1SJohn Marino * \return number of bits needed to represent a field element 336f5b1c8a1SJohn Marino */ 337f5b1c8a1SJohn Marino int EC_GROUP_get_degree(const EC_GROUP *group); 338f5b1c8a1SJohn Marino 339f5b1c8a1SJohn Marino /** Checks whether the parameter in the EC_GROUP define a valid ec group 340f5b1c8a1SJohn Marino * \param group EC_GROUP object 341f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 342f5b1c8a1SJohn Marino * \return 1 if group is a valid ec group and 0 otherwise 343f5b1c8a1SJohn Marino */ 344f5b1c8a1SJohn Marino int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx); 345f5b1c8a1SJohn Marino 346f5b1c8a1SJohn Marino /** Checks whether the discriminant of the elliptic curve is zero or not 347f5b1c8a1SJohn Marino * \param group EC_GROUP object 348f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 349f5b1c8a1SJohn Marino * \return 1 if the discriminant is not zero and 0 otherwise 350f5b1c8a1SJohn Marino */ 351f5b1c8a1SJohn Marino int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx); 352f5b1c8a1SJohn Marino 353f5b1c8a1SJohn Marino /** Compares two EC_GROUP objects 354f5b1c8a1SJohn Marino * \param a first EC_GROUP object 355f5b1c8a1SJohn Marino * \param b second EC_GROUP object 356f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 357f5b1c8a1SJohn Marino * \return 0 if both groups are equal and 1 otherwise 358f5b1c8a1SJohn Marino */ 359f5b1c8a1SJohn Marino int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx); 360f5b1c8a1SJohn Marino 361f5b1c8a1SJohn Marino /* EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() 362f5b1c8a1SJohn Marino * after choosing an appropriate EC_METHOD */ 363f5b1c8a1SJohn Marino 364f5b1c8a1SJohn Marino /** Creates a new EC_GROUP object with the specified parameters defined 365f5b1c8a1SJohn Marino * over GFp (defined by the equation y^2 = x^3 + a*x + b) 366f5b1c8a1SJohn Marino * \param p BIGNUM with the prime number 367f5b1c8a1SJohn Marino * \param a BIGNUM with the parameter a of the equation 368f5b1c8a1SJohn Marino * \param b BIGNUM with the parameter b of the equation 369f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 370f5b1c8a1SJohn Marino * \return newly created EC_GROUP object with the specified parameters 371f5b1c8a1SJohn Marino */ 372f5b1c8a1SJohn Marino EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); 373f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_EC2M 374f5b1c8a1SJohn Marino /** Creates a new EC_GROUP object with the specified parameters defined 375f5b1c8a1SJohn Marino * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b) 376f5b1c8a1SJohn Marino * \param p BIGNUM with the polynomial defining the underlying field 377f5b1c8a1SJohn Marino * \param a BIGNUM with the parameter a of the equation 378f5b1c8a1SJohn Marino * \param b BIGNUM with the parameter b of the equation 379f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 380f5b1c8a1SJohn Marino * \return newly created EC_GROUP object with the specified parameters 381f5b1c8a1SJohn Marino */ 382f5b1c8a1SJohn Marino EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx); 383f5b1c8a1SJohn Marino #endif 384f5b1c8a1SJohn Marino /** Creates a EC_GROUP object with a curve specified by a NID 385f5b1c8a1SJohn Marino * \param nid NID of the OID of the curve name 386f5b1c8a1SJohn Marino * \return newly created EC_GROUP object with specified curve or NULL 387f5b1c8a1SJohn Marino * if an error occurred 388f5b1c8a1SJohn Marino */ 389f5b1c8a1SJohn Marino EC_GROUP *EC_GROUP_new_by_curve_name(int nid); 390f5b1c8a1SJohn Marino 391f5b1c8a1SJohn Marino 392f5b1c8a1SJohn Marino /********************************************************************/ 393f5b1c8a1SJohn Marino /* handling of internal curves */ 394f5b1c8a1SJohn Marino /********************************************************************/ 395f5b1c8a1SJohn Marino 396f5b1c8a1SJohn Marino typedef struct { 397f5b1c8a1SJohn Marino int nid; 398f5b1c8a1SJohn Marino const char *comment; 399f5b1c8a1SJohn Marino } EC_builtin_curve; 400f5b1c8a1SJohn Marino 401f5b1c8a1SJohn Marino /* EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number 402f5b1c8a1SJohn Marino * of all available curves or zero if a error occurred. 403f5b1c8a1SJohn Marino * In case r ist not zero nitems EC_builtin_curve structures 404f5b1c8a1SJohn Marino * are filled with the data of the first nitems internal groups */ 405f5b1c8a1SJohn Marino size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems); 406f5b1c8a1SJohn Marino 407f5b1c8a1SJohn Marino const char *EC_curve_nid2nist(int nid); 408f5b1c8a1SJohn Marino int EC_curve_nist2nid(const char *name); 409f5b1c8a1SJohn Marino 410f5b1c8a1SJohn Marino /********************************************************************/ 411f5b1c8a1SJohn Marino /* EC_POINT functions */ 412f5b1c8a1SJohn Marino /********************************************************************/ 413f5b1c8a1SJohn Marino 414f5b1c8a1SJohn Marino /** Creates a new EC_POINT object for the specified EC_GROUP 415f5b1c8a1SJohn Marino * \param group EC_GROUP the underlying EC_GROUP object 416f5b1c8a1SJohn Marino * \return newly created EC_POINT object or NULL if an error occurred 417f5b1c8a1SJohn Marino */ 418f5b1c8a1SJohn Marino EC_POINT *EC_POINT_new(const EC_GROUP *group); 419f5b1c8a1SJohn Marino 420f5b1c8a1SJohn Marino /** Frees a EC_POINT object 421f5b1c8a1SJohn Marino * \param point EC_POINT object to be freed 422f5b1c8a1SJohn Marino */ 423f5b1c8a1SJohn Marino void EC_POINT_free(EC_POINT *point); 424f5b1c8a1SJohn Marino 425f5b1c8a1SJohn Marino /** Clears and frees a EC_POINT object 426f5b1c8a1SJohn Marino * \param point EC_POINT object to be cleared and freed 427f5b1c8a1SJohn Marino */ 428f5b1c8a1SJohn Marino void EC_POINT_clear_free(EC_POINT *point); 429f5b1c8a1SJohn Marino 430f5b1c8a1SJohn Marino /** Copies EC_POINT object 431f5b1c8a1SJohn Marino * \param dst destination EC_POINT object 432f5b1c8a1SJohn Marino * \param src source EC_POINT object 433f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 434f5b1c8a1SJohn Marino */ 435f5b1c8a1SJohn Marino int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src); 436f5b1c8a1SJohn Marino 437f5b1c8a1SJohn Marino /** Creates a new EC_POINT object and copies the content of the supplied 438f5b1c8a1SJohn Marino * EC_POINT 439f5b1c8a1SJohn Marino * \param src source EC_POINT object 440f5b1c8a1SJohn Marino * \param group underlying the EC_GROUP object 441f5b1c8a1SJohn Marino * \return newly created EC_POINT object or NULL if an error occurred 442f5b1c8a1SJohn Marino */ 443f5b1c8a1SJohn Marino EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group); 444f5b1c8a1SJohn Marino 445f5b1c8a1SJohn Marino /** Returns the EC_METHOD used in EC_POINT object 446f5b1c8a1SJohn Marino * \param point EC_POINT object 447f5b1c8a1SJohn Marino * \return the EC_METHOD used 448f5b1c8a1SJohn Marino */ 449f5b1c8a1SJohn Marino const EC_METHOD *EC_POINT_method_of(const EC_POINT *point); 450f5b1c8a1SJohn Marino 451f5b1c8a1SJohn Marino /** Sets a point to infinity (neutral element) 452f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 453f5b1c8a1SJohn Marino * \param point EC_POINT to set to infinity 454f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 455f5b1c8a1SJohn Marino */ 456f5b1c8a1SJohn Marino int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point); 457f5b1c8a1SJohn Marino 458*de0e0e4dSAntonio Huete Jimenez int EC_POINT_set_affine_coordinates(const EC_GROUP *group, EC_POINT *p, 459*de0e0e4dSAntonio Huete Jimenez const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 460*de0e0e4dSAntonio Huete Jimenez int EC_POINT_get_affine_coordinates(const EC_GROUP *group, const EC_POINT *p, 461*de0e0e4dSAntonio Huete Jimenez BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 462*de0e0e4dSAntonio Huete Jimenez int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *p, 463*de0e0e4dSAntonio Huete Jimenez const BIGNUM *x, int y_bit, BN_CTX *ctx); 464*de0e0e4dSAntonio Huete Jimenez 465*de0e0e4dSAntonio Huete Jimenez #if defined(LIBRESSL_INTERNAL) 466*de0e0e4dSAntonio Huete Jimenez 467*de0e0e4dSAntonio Huete Jimenez int EC_POINT_set_Jprojective_coordinates(const EC_GROUP *group, EC_POINT *p, 468*de0e0e4dSAntonio Huete Jimenez const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx); 469*de0e0e4dSAntonio Huete Jimenez int EC_POINT_get_Jprojective_coordinates(const EC_GROUP *group, 470*de0e0e4dSAntonio Huete Jimenez const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); 471*de0e0e4dSAntonio Huete Jimenez 472*de0e0e4dSAntonio Huete Jimenez #else 473*de0e0e4dSAntonio Huete Jimenez 474f5b1c8a1SJohn Marino /** Sets the jacobian projective coordinates of a EC_POINT over GFp 475f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 476f5b1c8a1SJohn Marino * \param p EC_POINT object 477f5b1c8a1SJohn Marino * \param x BIGNUM with the x-coordinate 478f5b1c8a1SJohn Marino * \param y BIGNUM with the y-coordinate 479f5b1c8a1SJohn Marino * \param z BIGNUM with the z-coordinate 480f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 481f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 482f5b1c8a1SJohn Marino */ 483f5b1c8a1SJohn Marino int EC_POINT_set_Jprojective_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, 484f5b1c8a1SJohn Marino const BIGNUM *x, const BIGNUM *y, const BIGNUM *z, BN_CTX *ctx); 485f5b1c8a1SJohn Marino 486f5b1c8a1SJohn Marino /** Gets the jacobian projective coordinates of a EC_POINT over GFp 487f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 488f5b1c8a1SJohn Marino * \param p EC_POINT object 489f5b1c8a1SJohn Marino * \param x BIGNUM for the x-coordinate 490f5b1c8a1SJohn Marino * \param y BIGNUM for the y-coordinate 491f5b1c8a1SJohn Marino * \param z BIGNUM for the z-coordinate 492f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 493f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 494f5b1c8a1SJohn Marino */ 495f5b1c8a1SJohn Marino int EC_POINT_get_Jprojective_coordinates_GFp(const EC_GROUP *group, 496f5b1c8a1SJohn Marino const EC_POINT *p, BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx); 497f5b1c8a1SJohn Marino 498f5b1c8a1SJohn Marino /** Sets the affine coordinates of a EC_POINT over GFp 499f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 500f5b1c8a1SJohn Marino * \param p EC_POINT object 501f5b1c8a1SJohn Marino * \param x BIGNUM with the x-coordinate 502f5b1c8a1SJohn Marino * \param y BIGNUM with the y-coordinate 503f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 504f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 505f5b1c8a1SJohn Marino */ 506f5b1c8a1SJohn Marino int EC_POINT_set_affine_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, 507f5b1c8a1SJohn Marino const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 508f5b1c8a1SJohn Marino 509f5b1c8a1SJohn Marino /** Gets the affine coordinates of a EC_POINT over GFp 510f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 511f5b1c8a1SJohn Marino * \param p EC_POINT object 512f5b1c8a1SJohn Marino * \param x BIGNUM for the x-coordinate 513f5b1c8a1SJohn Marino * \param y BIGNUM for the y-coordinate 514f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 515f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 516f5b1c8a1SJohn Marino */ 517f5b1c8a1SJohn Marino int EC_POINT_get_affine_coordinates_GFp(const EC_GROUP *group, 518f5b1c8a1SJohn Marino const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 519f5b1c8a1SJohn Marino 520f5b1c8a1SJohn Marino /** Sets the x9.62 compressed coordinates of a EC_POINT over GFp 521f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 522f5b1c8a1SJohn Marino * \param p EC_POINT object 523f5b1c8a1SJohn Marino * \param x BIGNUM with x-coordinate 524f5b1c8a1SJohn Marino * \param y_bit integer with the y-Bit (either 0 or 1) 525f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 526f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 527f5b1c8a1SJohn Marino */ 528f5b1c8a1SJohn Marino int EC_POINT_set_compressed_coordinates_GFp(const EC_GROUP *group, EC_POINT *p, 529f5b1c8a1SJohn Marino const BIGNUM *x, int y_bit, BN_CTX *ctx); 530*de0e0e4dSAntonio Huete Jimenez 531f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_EC2M 532f5b1c8a1SJohn Marino /** Sets the affine coordinates of a EC_POINT over GF2m 533f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 534f5b1c8a1SJohn Marino * \param p EC_POINT object 535f5b1c8a1SJohn Marino * \param x BIGNUM with the x-coordinate 536f5b1c8a1SJohn Marino * \param y BIGNUM with the y-coordinate 537f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 538f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 539f5b1c8a1SJohn Marino */ 540f5b1c8a1SJohn Marino int EC_POINT_set_affine_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, 541f5b1c8a1SJohn Marino const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx); 542f5b1c8a1SJohn Marino 543f5b1c8a1SJohn Marino /** Gets the affine coordinates of a EC_POINT over GF2m 544f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 545f5b1c8a1SJohn Marino * \param p EC_POINT object 546f5b1c8a1SJohn Marino * \param x BIGNUM for the x-coordinate 547f5b1c8a1SJohn Marino * \param y BIGNUM for the y-coordinate 548f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 549f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 550f5b1c8a1SJohn Marino */ 551f5b1c8a1SJohn Marino int EC_POINT_get_affine_coordinates_GF2m(const EC_GROUP *group, 552f5b1c8a1SJohn Marino const EC_POINT *p, BIGNUM *x, BIGNUM *y, BN_CTX *ctx); 553f5b1c8a1SJohn Marino 554f5b1c8a1SJohn Marino /** Sets the x9.62 compressed coordinates of a EC_POINT over GF2m 555f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 556f5b1c8a1SJohn Marino * \param p EC_POINT object 557f5b1c8a1SJohn Marino * \param x BIGNUM with x-coordinate 558f5b1c8a1SJohn Marino * \param y_bit integer with the y-Bit (either 0 or 1) 559f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 560f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 561f5b1c8a1SJohn Marino */ 562f5b1c8a1SJohn Marino int EC_POINT_set_compressed_coordinates_GF2m(const EC_GROUP *group, EC_POINT *p, 563f5b1c8a1SJohn Marino const BIGNUM *x, int y_bit, BN_CTX *ctx); 564*de0e0e4dSAntonio Huete Jimenez #endif /* OPENSSL_NO_EC2M */ 565*de0e0e4dSAntonio Huete Jimenez #endif /* !LIBRESSL_INTERNAL */ 566*de0e0e4dSAntonio Huete Jimenez 567f5b1c8a1SJohn Marino /** Encodes a EC_POINT object to a octet string 568f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 569f5b1c8a1SJohn Marino * \param p EC_POINT object 570f5b1c8a1SJohn Marino * \param form point conversion form 571f5b1c8a1SJohn Marino * \param buf memory buffer for the result. If NULL the function returns 572f5b1c8a1SJohn Marino * required buffer size. 573f5b1c8a1SJohn Marino * \param len length of the memory buffer 574f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 575f5b1c8a1SJohn Marino * \return the length of the encoded octet string or 0 if an error occurred 576f5b1c8a1SJohn Marino */ 577f5b1c8a1SJohn Marino size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p, 578f5b1c8a1SJohn Marino point_conversion_form_t form, 579f5b1c8a1SJohn Marino unsigned char *buf, size_t len, BN_CTX *ctx); 580f5b1c8a1SJohn Marino 581f5b1c8a1SJohn Marino /** Decodes a EC_POINT from a octet string 582f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 583f5b1c8a1SJohn Marino * \param p EC_POINT object 584f5b1c8a1SJohn Marino * \param buf memory buffer with the encoded ec point 585f5b1c8a1SJohn Marino * \param len length of the encoded ec point 586f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 587f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 588f5b1c8a1SJohn Marino */ 589f5b1c8a1SJohn Marino int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p, 590f5b1c8a1SJohn Marino const unsigned char *buf, size_t len, BN_CTX *ctx); 591f5b1c8a1SJohn Marino 592f5b1c8a1SJohn Marino /* other interfaces to point2oct/oct2point: */ 593f5b1c8a1SJohn Marino BIGNUM *EC_POINT_point2bn(const EC_GROUP *, const EC_POINT *, 594f5b1c8a1SJohn Marino point_conversion_form_t form, BIGNUM *, BN_CTX *); 595f5b1c8a1SJohn Marino EC_POINT *EC_POINT_bn2point(const EC_GROUP *, const BIGNUM *, 596f5b1c8a1SJohn Marino EC_POINT *, BN_CTX *); 597f5b1c8a1SJohn Marino char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *, 598f5b1c8a1SJohn Marino point_conversion_form_t form, BN_CTX *); 599f5b1c8a1SJohn Marino EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *, 600f5b1c8a1SJohn Marino EC_POINT *, BN_CTX *); 601f5b1c8a1SJohn Marino 602f5b1c8a1SJohn Marino 603f5b1c8a1SJohn Marino /********************************************************************/ 604f5b1c8a1SJohn Marino /* functions for doing EC_POINT arithmetic */ 605f5b1c8a1SJohn Marino /********************************************************************/ 606f5b1c8a1SJohn Marino 607f5b1c8a1SJohn Marino /** Computes the sum of two EC_POINT 608f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 609f5b1c8a1SJohn Marino * \param r EC_POINT object for the result (r = a + b) 610f5b1c8a1SJohn Marino * \param a EC_POINT object with the first summand 611f5b1c8a1SJohn Marino * \param b EC_POINT object with the second summand 612f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 613f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 614f5b1c8a1SJohn Marino */ 615f5b1c8a1SJohn Marino int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); 616f5b1c8a1SJohn Marino 617f5b1c8a1SJohn Marino /** Computes the double of a EC_POINT 618f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 619f5b1c8a1SJohn Marino * \param r EC_POINT object for the result (r = 2 * a) 620f5b1c8a1SJohn Marino * \param a EC_POINT object 621f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 622f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 623f5b1c8a1SJohn Marino */ 624f5b1c8a1SJohn Marino int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a, BN_CTX *ctx); 625f5b1c8a1SJohn Marino 626f5b1c8a1SJohn Marino /** Computes the inverse of a EC_POINT 627f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 628f5b1c8a1SJohn Marino * \param a EC_POINT object to be inverted (it's used for the result as well) 629f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 630f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 631f5b1c8a1SJohn Marino */ 632f5b1c8a1SJohn Marino int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx); 633f5b1c8a1SJohn Marino 634f5b1c8a1SJohn Marino /** Checks whether the point is the neutral element of the group 635f5b1c8a1SJohn Marino * \param group the underlying EC_GROUP object 636f5b1c8a1SJohn Marino * \param p EC_POINT object 637f5b1c8a1SJohn Marino * \return 1 if the point is the neutral element and 0 otherwise 638f5b1c8a1SJohn Marino */ 639f5b1c8a1SJohn Marino int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p); 640f5b1c8a1SJohn Marino 641f5b1c8a1SJohn Marino /** Checks whether the point is on the curve 642f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 643f5b1c8a1SJohn Marino * \param point EC_POINT object to check 644f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 645f5b1c8a1SJohn Marino * \return 1 if point if on the curve and 0 otherwise 646f5b1c8a1SJohn Marino */ 647f5b1c8a1SJohn Marino int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point, BN_CTX *ctx); 648f5b1c8a1SJohn Marino 649f5b1c8a1SJohn Marino /** Compares two EC_POINTs 650f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 651f5b1c8a1SJohn Marino * \param a first EC_POINT object 652f5b1c8a1SJohn Marino * \param b second EC_POINT object 653f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 654f5b1c8a1SJohn Marino * \return 0 if both points are equal and a value != 0 otherwise 655f5b1c8a1SJohn Marino */ 656f5b1c8a1SJohn Marino int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b, BN_CTX *ctx); 657f5b1c8a1SJohn Marino 658f5b1c8a1SJohn Marino int EC_POINT_make_affine(const EC_GROUP *group, EC_POINT *point, BN_CTX *ctx); 659f5b1c8a1SJohn Marino int EC_POINTs_make_affine(const EC_GROUP *group, size_t num, EC_POINT *points[], BN_CTX *ctx); 660f5b1c8a1SJohn Marino 661f5b1c8a1SJohn Marino /** Computes r = generator * n sum_{i=0}^num p[i] * m[i] 662f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 663f5b1c8a1SJohn Marino * \param r EC_POINT object for the result 664f5b1c8a1SJohn Marino * \param n BIGNUM with the multiplier for the group generator (optional) 665f5b1c8a1SJohn Marino * \param num number futher summands 666f5b1c8a1SJohn Marino * \param p array of size num of EC_POINT objects 667f5b1c8a1SJohn Marino * \param m array of size num of BIGNUM objects 668f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 669f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 670f5b1c8a1SJohn Marino */ 671f5b1c8a1SJohn Marino 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); 672f5b1c8a1SJohn Marino 673f5b1c8a1SJohn Marino /** Computes r = generator * n + q * m 674f5b1c8a1SJohn Marino * \param group underlying EC_GROUP object 675f5b1c8a1SJohn Marino * \param r EC_POINT object for the result 676f5b1c8a1SJohn Marino * \param n BIGNUM with the multiplier for the group generator (optional) 677f5b1c8a1SJohn Marino * \param q EC_POINT object with the first factor of the second summand 678f5b1c8a1SJohn Marino * \param m BIGNUM with the second factor of the second summand 679f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 680f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 681f5b1c8a1SJohn Marino */ 682f5b1c8a1SJohn Marino int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n, const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx); 683f5b1c8a1SJohn Marino 684f5b1c8a1SJohn Marino /** Stores multiples of generator for faster point multiplication 685f5b1c8a1SJohn Marino * \param group EC_GROUP object 686f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 687f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occured 688f5b1c8a1SJohn Marino */ 689f5b1c8a1SJohn Marino int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx); 690f5b1c8a1SJohn Marino 691f5b1c8a1SJohn Marino /** Reports whether a precomputation has been done 692f5b1c8a1SJohn Marino * \param group EC_GROUP object 693f5b1c8a1SJohn Marino * \return 1 if a pre-computation has been done and 0 otherwise 694f5b1c8a1SJohn Marino */ 695f5b1c8a1SJohn Marino int EC_GROUP_have_precompute_mult(const EC_GROUP *group); 696f5b1c8a1SJohn Marino 697f5b1c8a1SJohn Marino 698f5b1c8a1SJohn Marino /********************************************************************/ 699f5b1c8a1SJohn Marino /* ASN1 stuff */ 700f5b1c8a1SJohn Marino /********************************************************************/ 701f5b1c8a1SJohn Marino 702f5b1c8a1SJohn Marino /* EC_GROUP_get_basis_type() returns the NID of the basis type 703f5b1c8a1SJohn Marino * used to represent the field elements */ 704f5b1c8a1SJohn Marino int EC_GROUP_get_basis_type(const EC_GROUP *); 705f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_EC2M 706f5b1c8a1SJohn Marino int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k); 707f5b1c8a1SJohn Marino int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1, 708f5b1c8a1SJohn Marino unsigned int *k2, unsigned int *k3); 709f5b1c8a1SJohn Marino #endif 710f5b1c8a1SJohn Marino 711*de0e0e4dSAntonio Huete Jimenez #define OPENSSL_EC_EXPLICIT_CURVE 0x000 712f5b1c8a1SJohn Marino #define OPENSSL_EC_NAMED_CURVE 0x001 713f5b1c8a1SJohn Marino 714f5b1c8a1SJohn Marino typedef struct ecpk_parameters_st ECPKPARAMETERS; 715f5b1c8a1SJohn Marino 716f5b1c8a1SJohn Marino EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len); 717f5b1c8a1SJohn Marino int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out); 718f5b1c8a1SJohn Marino 719f5b1c8a1SJohn Marino #define d2i_ECPKParameters_bio(bp,x) ASN1_d2i_bio_of(EC_GROUP,NULL,d2i_ECPKParameters,bp,x) 720f5b1c8a1SJohn Marino #define i2d_ECPKParameters_bio(bp,x) ASN1_i2d_bio_of_const(EC_GROUP,i2d_ECPKParameters,bp,x) 721f5b1c8a1SJohn Marino #define d2i_ECPKParameters_fp(fp,x) (EC_GROUP *)ASN1_d2i_fp(NULL, \ 722f5b1c8a1SJohn Marino (char *(*)())d2i_ECPKParameters,(fp),(unsigned char **)(x)) 723f5b1c8a1SJohn Marino #define i2d_ECPKParameters_fp(fp,x) ASN1_i2d_fp(i2d_ECPKParameters,(fp), \ 724f5b1c8a1SJohn Marino (unsigned char *)(x)) 725f5b1c8a1SJohn Marino 726f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_BIO 727f5b1c8a1SJohn Marino int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off); 728f5b1c8a1SJohn Marino #endif 729f5b1c8a1SJohn Marino int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off); 730f5b1c8a1SJohn Marino 731f5b1c8a1SJohn Marino 732f5b1c8a1SJohn Marino /********************************************************************/ 733f5b1c8a1SJohn Marino /* EC_KEY functions */ 734f5b1c8a1SJohn Marino /********************************************************************/ 735f5b1c8a1SJohn Marino 736f5b1c8a1SJohn Marino typedef struct ec_key_st EC_KEY; 73772c33676SMaxim Ag typedef struct ec_key_method_st EC_KEY_METHOD; 738f5b1c8a1SJohn Marino 739f5b1c8a1SJohn Marino /* some values for the encoding_flag */ 740f5b1c8a1SJohn Marino #define EC_PKEY_NO_PARAMETERS 0x001 741f5b1c8a1SJohn Marino #define EC_PKEY_NO_PUBKEY 0x002 742f5b1c8a1SJohn Marino 743f5b1c8a1SJohn Marino /* some values for the flags field */ 744f5b1c8a1SJohn Marino #define EC_FLAG_NON_FIPS_ALLOW 0x1 745f5b1c8a1SJohn Marino #define EC_FLAG_FIPS_CHECKED 0x2 746cca6fc52SDaniel Fojt #define EC_FLAG_COFACTOR_ECDH 0x1000 747f5b1c8a1SJohn Marino 748f5b1c8a1SJohn Marino /** Creates a new EC_KEY object. 749f5b1c8a1SJohn Marino * \return EC_KEY object or NULL if an error occurred. 750f5b1c8a1SJohn Marino */ 751f5b1c8a1SJohn Marino EC_KEY *EC_KEY_new(void); 752f5b1c8a1SJohn Marino 753f5b1c8a1SJohn Marino int EC_KEY_get_flags(const EC_KEY *key); 754f5b1c8a1SJohn Marino 755f5b1c8a1SJohn Marino void EC_KEY_set_flags(EC_KEY *key, int flags); 756f5b1c8a1SJohn Marino 757f5b1c8a1SJohn Marino void EC_KEY_clear_flags(EC_KEY *key, int flags); 758f5b1c8a1SJohn Marino 759f5b1c8a1SJohn Marino /** Creates a new EC_KEY object using a named curve as underlying 760f5b1c8a1SJohn Marino * EC_GROUP object. 761f5b1c8a1SJohn Marino * \param nid NID of the named curve. 762f5b1c8a1SJohn Marino * \return EC_KEY object or NULL if an error occurred. 763f5b1c8a1SJohn Marino */ 764f5b1c8a1SJohn Marino EC_KEY *EC_KEY_new_by_curve_name(int nid); 765f5b1c8a1SJohn Marino 766f5b1c8a1SJohn Marino /** Frees a EC_KEY object. 767f5b1c8a1SJohn Marino * \param key EC_KEY object to be freed. 768f5b1c8a1SJohn Marino */ 769f5b1c8a1SJohn Marino void EC_KEY_free(EC_KEY *key); 770f5b1c8a1SJohn Marino 771f5b1c8a1SJohn Marino /** Copies a EC_KEY object. 772f5b1c8a1SJohn Marino * \param dst destination EC_KEY object 773f5b1c8a1SJohn Marino * \param src src EC_KEY object 774f5b1c8a1SJohn Marino * \return dst or NULL if an error occurred. 775f5b1c8a1SJohn Marino */ 776f5b1c8a1SJohn Marino EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src); 777f5b1c8a1SJohn Marino 778f5b1c8a1SJohn Marino /** Creates a new EC_KEY object and copies the content from src to it. 779f5b1c8a1SJohn Marino * \param src the source EC_KEY object 780f5b1c8a1SJohn Marino * \return newly created EC_KEY object or NULL if an error occurred. 781f5b1c8a1SJohn Marino */ 782f5b1c8a1SJohn Marino EC_KEY *EC_KEY_dup(const EC_KEY *src); 783f5b1c8a1SJohn Marino 784f5b1c8a1SJohn Marino /** Increases the internal reference count of a EC_KEY object. 785f5b1c8a1SJohn Marino * \param key EC_KEY object 786f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 787f5b1c8a1SJohn Marino */ 788f5b1c8a1SJohn Marino int EC_KEY_up_ref(EC_KEY *key); 789f5b1c8a1SJohn Marino 790f5b1c8a1SJohn Marino /** Returns the EC_GROUP object of a EC_KEY object 791f5b1c8a1SJohn Marino * \param key EC_KEY object 792f5b1c8a1SJohn Marino * \return the EC_GROUP object (possibly NULL). 793f5b1c8a1SJohn Marino */ 794f5b1c8a1SJohn Marino const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key); 795f5b1c8a1SJohn Marino 796f5b1c8a1SJohn Marino /** Sets the EC_GROUP of a EC_KEY object. 797f5b1c8a1SJohn Marino * \param key EC_KEY object 798f5b1c8a1SJohn Marino * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY 799f5b1c8a1SJohn Marino * object will use an own copy of the EC_GROUP). 800f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 801f5b1c8a1SJohn Marino */ 802f5b1c8a1SJohn Marino int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group); 803f5b1c8a1SJohn Marino 804f5b1c8a1SJohn Marino /** Returns the private key of a EC_KEY object. 805f5b1c8a1SJohn Marino * \param key EC_KEY object 806f5b1c8a1SJohn Marino * \return a BIGNUM with the private key (possibly NULL). 807f5b1c8a1SJohn Marino */ 808f5b1c8a1SJohn Marino const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key); 809f5b1c8a1SJohn Marino 810f5b1c8a1SJohn Marino /** Sets the private key of a EC_KEY object. 811f5b1c8a1SJohn Marino * \param key EC_KEY object 812f5b1c8a1SJohn Marino * \param prv BIGNUM with the private key (note: the EC_KEY object 813f5b1c8a1SJohn Marino * will use an own copy of the BIGNUM). 814f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 815f5b1c8a1SJohn Marino */ 816f5b1c8a1SJohn Marino int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv); 817f5b1c8a1SJohn Marino 818f5b1c8a1SJohn Marino /** Returns the public key of a EC_KEY object. 819f5b1c8a1SJohn Marino * \param key the EC_KEY object 820f5b1c8a1SJohn Marino * \return a EC_POINT object with the public key (possibly NULL) 821f5b1c8a1SJohn Marino */ 822f5b1c8a1SJohn Marino const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key); 823f5b1c8a1SJohn Marino 824f5b1c8a1SJohn Marino /** Sets the public key of a EC_KEY object. 825f5b1c8a1SJohn Marino * \param key EC_KEY object 826f5b1c8a1SJohn Marino * \param pub EC_POINT object with the public key (note: the EC_KEY object 827f5b1c8a1SJohn Marino * will use an own copy of the EC_POINT object). 828f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 829f5b1c8a1SJohn Marino */ 830f5b1c8a1SJohn Marino int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub); 831f5b1c8a1SJohn Marino 832f5b1c8a1SJohn Marino unsigned EC_KEY_get_enc_flags(const EC_KEY *key); 833f5b1c8a1SJohn Marino void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags); 834f5b1c8a1SJohn Marino point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key); 835f5b1c8a1SJohn Marino void EC_KEY_set_conv_form(EC_KEY *eckey, point_conversion_form_t cform); 836f5b1c8a1SJohn Marino /* functions to set/get method specific data */ 837f5b1c8a1SJohn Marino void *EC_KEY_get_key_method_data(EC_KEY *key, 838f5b1c8a1SJohn Marino void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *)); 839f5b1c8a1SJohn Marino /** Sets the key method data of an EC_KEY object, if none has yet been set. 840f5b1c8a1SJohn Marino * \param key EC_KEY object 841f5b1c8a1SJohn Marino * \param data opaque data to install. 842f5b1c8a1SJohn Marino * \param dup_func a function that duplicates |data|. 843f5b1c8a1SJohn Marino * \param free_func a function that frees |data|. 844f5b1c8a1SJohn Marino * \param clear_free_func a function that wipes and frees |data|. 845f5b1c8a1SJohn Marino * \return the previously set data pointer, or NULL if |data| was inserted. 846f5b1c8a1SJohn Marino */ 847f5b1c8a1SJohn Marino void *EC_KEY_insert_key_method_data(EC_KEY *key, void *data, 848f5b1c8a1SJohn Marino void *(*dup_func)(void *), void (*free_func)(void *), void (*clear_free_func)(void *)); 849f5b1c8a1SJohn Marino /* wrapper functions for the underlying EC_GROUP object */ 850f5b1c8a1SJohn Marino void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag); 851f5b1c8a1SJohn Marino 852f5b1c8a1SJohn Marino /** Creates a table of pre-computed multiples of the generator to 853f5b1c8a1SJohn Marino * accelerate further EC_KEY operations. 854f5b1c8a1SJohn Marino * \param key EC_KEY object 855f5b1c8a1SJohn Marino * \param ctx BN_CTX object (optional) 856f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 857f5b1c8a1SJohn Marino */ 858f5b1c8a1SJohn Marino int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx); 859f5b1c8a1SJohn Marino 860f5b1c8a1SJohn Marino /** Creates a new ec private (and optional a new public) key. 861f5b1c8a1SJohn Marino * \param key EC_KEY object 862f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 863f5b1c8a1SJohn Marino */ 864f5b1c8a1SJohn Marino int EC_KEY_generate_key(EC_KEY *key); 865f5b1c8a1SJohn Marino 866f5b1c8a1SJohn Marino /** Verifies that a private and/or public key is valid. 867f5b1c8a1SJohn Marino * \param key the EC_KEY object 868f5b1c8a1SJohn Marino * \return 1 on success and 0 otherwise. 869f5b1c8a1SJohn Marino */ 870f5b1c8a1SJohn Marino int EC_KEY_check_key(const EC_KEY *key); 871f5b1c8a1SJohn Marino 872f5b1c8a1SJohn Marino /** Sets a public key from affine coordindates performing 873f5b1c8a1SJohn Marino * neccessary NIST PKV tests. 874f5b1c8a1SJohn Marino * \param key the EC_KEY object 875f5b1c8a1SJohn Marino * \param x public key x coordinate 876f5b1c8a1SJohn Marino * \param y public key y coordinate 877f5b1c8a1SJohn Marino * \return 1 on success and 0 otherwise. 878f5b1c8a1SJohn Marino */ 879f5b1c8a1SJohn Marino int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key, BIGNUM *x, BIGNUM *y); 880f5b1c8a1SJohn Marino 881f5b1c8a1SJohn Marino 882f5b1c8a1SJohn Marino /********************************************************************/ 883f5b1c8a1SJohn Marino /* de- and encoding functions for SEC1 ECPrivateKey */ 884f5b1c8a1SJohn Marino /********************************************************************/ 885f5b1c8a1SJohn Marino 886f5b1c8a1SJohn Marino /** Decodes a private key from a memory buffer. 887f5b1c8a1SJohn Marino * \param key a pointer to a EC_KEY object which should be used (or NULL) 888f5b1c8a1SJohn Marino * \param in pointer to memory with the DER encoded private key 889f5b1c8a1SJohn Marino * \param len length of the DER encoded private key 890f5b1c8a1SJohn Marino * \return the decoded private key or NULL if an error occurred. 891f5b1c8a1SJohn Marino */ 892f5b1c8a1SJohn Marino EC_KEY *d2i_ECPrivateKey(EC_KEY **key, const unsigned char **in, long len); 893f5b1c8a1SJohn Marino 894f5b1c8a1SJohn Marino /** Encodes a private key object and stores the result in a buffer. 895f5b1c8a1SJohn Marino * \param key the EC_KEY object to encode 896f5b1c8a1SJohn Marino * \param out the buffer for the result (if NULL the function returns number 897f5b1c8a1SJohn Marino * of bytes needed). 898f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 899f5b1c8a1SJohn Marino */ 900f5b1c8a1SJohn Marino int i2d_ECPrivateKey(EC_KEY *key, unsigned char **out); 901f5b1c8a1SJohn Marino 902f5b1c8a1SJohn Marino 903f5b1c8a1SJohn Marino /********************************************************************/ 904f5b1c8a1SJohn Marino /* de- and encoding functions for EC parameters */ 905f5b1c8a1SJohn Marino /********************************************************************/ 906f5b1c8a1SJohn Marino 907f5b1c8a1SJohn Marino /** Decodes ec parameter from a memory buffer. 908f5b1c8a1SJohn Marino * \param key a pointer to a EC_KEY object which should be used (or NULL) 909f5b1c8a1SJohn Marino * \param in pointer to memory with the DER encoded ec parameters 910f5b1c8a1SJohn Marino * \param len length of the DER encoded ec parameters 911f5b1c8a1SJohn Marino * \return a EC_KEY object with the decoded parameters or NULL if an error 912f5b1c8a1SJohn Marino * occurred. 913f5b1c8a1SJohn Marino */ 914f5b1c8a1SJohn Marino EC_KEY *d2i_ECParameters(EC_KEY **key, const unsigned char **in, long len); 915f5b1c8a1SJohn Marino 916f5b1c8a1SJohn Marino /** Encodes ec parameter and stores the result in a buffer. 917f5b1c8a1SJohn Marino * \param key the EC_KEY object with ec paramters to encode 918f5b1c8a1SJohn Marino * \param out the buffer for the result (if NULL the function returns number 919f5b1c8a1SJohn Marino * of bytes needed). 920f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred. 921f5b1c8a1SJohn Marino */ 922f5b1c8a1SJohn Marino int i2d_ECParameters(EC_KEY *key, unsigned char **out); 923f5b1c8a1SJohn Marino 924f5b1c8a1SJohn Marino 925f5b1c8a1SJohn Marino /********************************************************************/ 926f5b1c8a1SJohn Marino /* de- and encoding functions for EC public key */ 927f5b1c8a1SJohn Marino /* (octet string, not DER -- hence 'o2i' and 'i2o') */ 928f5b1c8a1SJohn Marino /********************************************************************/ 929f5b1c8a1SJohn Marino 930f5b1c8a1SJohn Marino /** Decodes a ec public key from a octet string. 931f5b1c8a1SJohn Marino * \param key a pointer to a EC_KEY object which should be used 932f5b1c8a1SJohn Marino * \param in memory buffer with the encoded public key 933f5b1c8a1SJohn Marino * \param len length of the encoded public key 934f5b1c8a1SJohn Marino * \return EC_KEY object with decoded public key or NULL if an error 935f5b1c8a1SJohn Marino * occurred. 936f5b1c8a1SJohn Marino */ 937f5b1c8a1SJohn Marino EC_KEY *o2i_ECPublicKey(EC_KEY **key, const unsigned char **in, long len); 938f5b1c8a1SJohn Marino 939f5b1c8a1SJohn Marino /** Encodes a ec public key in an octet string. 940f5b1c8a1SJohn Marino * \param key the EC_KEY object with the public key 941f5b1c8a1SJohn Marino * \param out the buffer for the result (if NULL the function returns number 942f5b1c8a1SJohn Marino * of bytes needed). 943f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred 944f5b1c8a1SJohn Marino */ 94572c33676SMaxim Ag int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out); 946f5b1c8a1SJohn Marino 947f5b1c8a1SJohn Marino #ifndef OPENSSL_NO_BIO 948f5b1c8a1SJohn Marino /** Prints out the ec parameters on human readable form. 949f5b1c8a1SJohn Marino * \param bp BIO object to which the information is printed 950f5b1c8a1SJohn Marino * \param key EC_KEY object 951f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred 952f5b1c8a1SJohn Marino */ 953f5b1c8a1SJohn Marino int ECParameters_print(BIO *bp, const EC_KEY *key); 954f5b1c8a1SJohn Marino 955f5b1c8a1SJohn Marino /** Prints out the contents of a EC_KEY object 956f5b1c8a1SJohn Marino * \param bp BIO object to which the information is printed 957f5b1c8a1SJohn Marino * \param key EC_KEY object 958f5b1c8a1SJohn Marino * \param off line offset 959f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred 960f5b1c8a1SJohn Marino */ 961f5b1c8a1SJohn Marino int EC_KEY_print(BIO *bp, const EC_KEY *key, int off); 962f5b1c8a1SJohn Marino 963f5b1c8a1SJohn Marino #endif 964f5b1c8a1SJohn Marino /** Prints out the ec parameters on human readable form. 965f5b1c8a1SJohn Marino * \param fp file descriptor to which the information is printed 966f5b1c8a1SJohn Marino * \param key EC_KEY object 967f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred 968f5b1c8a1SJohn Marino */ 969f5b1c8a1SJohn Marino int ECParameters_print_fp(FILE *fp, const EC_KEY *key); 970f5b1c8a1SJohn Marino 971f5b1c8a1SJohn Marino /** Prints out the contents of a EC_KEY object 972f5b1c8a1SJohn Marino * \param fp file descriptor to which the information is printed 973f5b1c8a1SJohn Marino * \param key EC_KEY object 974f5b1c8a1SJohn Marino * \param off line offset 975f5b1c8a1SJohn Marino * \return 1 on success and 0 if an error occurred 976f5b1c8a1SJohn Marino */ 977f5b1c8a1SJohn Marino int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off); 978f5b1c8a1SJohn Marino 97972c33676SMaxim Ag #define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \ 98072c33676SMaxim Ag CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef) 98172c33676SMaxim Ag int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg); 98272c33676SMaxim Ag void *EC_KEY_get_ex_data(const EC_KEY *key, int idx); 98372c33676SMaxim Ag 98472c33676SMaxim Ag const EC_KEY_METHOD *EC_KEY_OpenSSL(void); 98572c33676SMaxim Ag const EC_KEY_METHOD *EC_KEY_get_default_method(void); 98672c33676SMaxim Ag void EC_KEY_set_default_method(const EC_KEY_METHOD *meth); 98772c33676SMaxim Ag const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key); 98872c33676SMaxim Ag int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth); 98972c33676SMaxim Ag EC_KEY *EC_KEY_new_method(ENGINE *engine); 99072c33676SMaxim Ag EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth); 99172c33676SMaxim Ag void EC_KEY_METHOD_free(EC_KEY_METHOD *meth); 99272c33676SMaxim Ag void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth, 99372c33676SMaxim Ag int (*init)(EC_KEY *key), 99472c33676SMaxim Ag void (*finish)(EC_KEY *key), 99572c33676SMaxim Ag int (*copy)(EC_KEY *dest, const EC_KEY *src), 99672c33676SMaxim Ag int (*set_group)(EC_KEY *key, const EC_GROUP *grp), 99772c33676SMaxim Ag int (*set_private)(EC_KEY *key, const BIGNUM *priv_key), 99872c33676SMaxim Ag int (*set_public)(EC_KEY *key, const EC_POINT *pub_key)); 99972c33676SMaxim Ag void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth, 100072c33676SMaxim Ag int (*keygen)(EC_KEY *key)); 100172c33676SMaxim Ag void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth, 100272c33676SMaxim Ag int (*ckey)(void *out, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh, 100372c33676SMaxim Ag void *(*KDF) (const void *in, size_t inlen, void *out, size_t *outlen))); 100472c33676SMaxim Ag void EC_KEY_METHOD_get_init(const EC_KEY_METHOD *meth, 100572c33676SMaxim Ag int (**pinit)(EC_KEY *key), 100672c33676SMaxim Ag void (**pfinish)(EC_KEY *key), 100772c33676SMaxim Ag int (**pcopy)(EC_KEY *dest, const EC_KEY *src), 100872c33676SMaxim Ag int (**pset_group)(EC_KEY *key, const EC_GROUP *grp), 100972c33676SMaxim Ag int (**pset_private)(EC_KEY *key, const BIGNUM *priv_key), 101072c33676SMaxim Ag int (**pset_public)(EC_KEY *key, const EC_POINT *pub_key)); 101172c33676SMaxim Ag void EC_KEY_METHOD_get_keygen(const EC_KEY_METHOD *meth, 101272c33676SMaxim Ag int (**pkeygen)(EC_KEY *key)); 101372c33676SMaxim Ag void EC_KEY_METHOD_get_compute_key(const EC_KEY_METHOD *meth, 101472c33676SMaxim Ag int (**pck)(void *out, size_t outlen, const EC_POINT *pub_key, EC_KEY *ecdh, 101572c33676SMaxim Ag void *(*KDF) (const void *in, size_t inlen, void *out, size_t *outlen))); 101672c33676SMaxim Ag 1017f5b1c8a1SJohn Marino EC_KEY *ECParameters_dup(EC_KEY *key); 1018f5b1c8a1SJohn Marino 1019f5b1c8a1SJohn Marino #ifndef __cplusplus 1020f5b1c8a1SJohn Marino #if defined(__SUNPRO_C) 1021f5b1c8a1SJohn Marino # if __SUNPRO_C >= 0x520 1022f5b1c8a1SJohn Marino # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE) 1023f5b1c8a1SJohn Marino # endif 1024f5b1c8a1SJohn Marino # endif 1025f5b1c8a1SJohn Marino #endif 1026f5b1c8a1SJohn Marino 1027f5b1c8a1SJohn Marino #define EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid) \ 1028cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1029cca6fc52SDaniel Fojt EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \ 1030f5b1c8a1SJohn Marino EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID, nid, NULL) 1031f5b1c8a1SJohn Marino 1032cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set_ec_param_enc(ctx, flag) \ 1033cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1034cca6fc52SDaniel Fojt EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN, \ 1035cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_PARAM_ENC, flag, NULL) 1036cca6fc52SDaniel Fojt 1037cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set_ecdh_cofactor_mode(ctx, flag) \ 1038cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1039cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1040cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_ECDH_COFACTOR, flag, NULL) 1041cca6fc52SDaniel Fojt 1042cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get_ecdh_cofactor_mode(ctx) \ 1043cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1044cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1045cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_ECDH_COFACTOR, -2, NULL) 1046cca6fc52SDaniel Fojt 1047cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set_ecdh_kdf_type(ctx, kdf) \ 1048cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1049cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1050cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_KDF_TYPE, kdf, NULL) 1051cca6fc52SDaniel Fojt 1052cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get_ecdh_kdf_type(ctx) \ 1053cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1054cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1055cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_KDF_TYPE, -2, NULL) 1056cca6fc52SDaniel Fojt 1057cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set_ecdh_kdf_md(ctx, md) \ 1058cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1059cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1060cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_KDF_MD, 0, (void *)(md)) 1061cca6fc52SDaniel Fojt 1062cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get_ecdh_kdf_md(ctx, pmd) \ 1063cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1064cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1065cca6fc52SDaniel Fojt EVP_PKEY_CTRL_GET_EC_KDF_MD, 0, (void *)(pmd)) 1066cca6fc52SDaniel Fojt 1067cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set_ecdh_kdf_outlen(ctx, len) \ 1068cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1069cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1070cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_KDF_OUTLEN, len, NULL) 1071cca6fc52SDaniel Fojt 1072cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get_ecdh_kdf_outlen(ctx, plen) \ 1073cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1074cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1075cca6fc52SDaniel Fojt EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN, 0, \ 1076cca6fc52SDaniel Fojt (void *)(plen)) 1077cca6fc52SDaniel Fojt 1078cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set0_ecdh_kdf_ukm(ctx, p, plen) \ 1079cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1080cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1081cca6fc52SDaniel Fojt EVP_PKEY_CTRL_EC_KDF_UKM, plen, (void *)(p)) 1082cca6fc52SDaniel Fojt 1083cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get0_ecdh_kdf_ukm(ctx, p) \ 1084cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC, \ 1085cca6fc52SDaniel Fojt EVP_PKEY_OP_DERIVE, \ 1086cca6fc52SDaniel Fojt EVP_PKEY_CTRL_GET_EC_KDF_UKM, 0, (void *)(p)) 1087cca6fc52SDaniel Fojt 1088cca6fc52SDaniel Fojt /* SM2 will skip the operation check so no need to pass operation here */ 1089cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_set1_id(ctx, id, id_len) \ 1090cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, -1, -1, \ 1091cca6fc52SDaniel Fojt EVP_PKEY_CTRL_SET1_ID, (int)id_len, (void*)(id)) 1092cca6fc52SDaniel Fojt 1093cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get1_id(ctx, id) \ 1094cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, -1, -1, \ 1095cca6fc52SDaniel Fojt EVP_PKEY_CTRL_GET1_ID, 0, (void*)(id)) 1096cca6fc52SDaniel Fojt 1097cca6fc52SDaniel Fojt #define EVP_PKEY_CTX_get1_id_len(ctx, id_len) \ 1098cca6fc52SDaniel Fojt EVP_PKEY_CTX_ctrl(ctx, -1, -1, \ 1099cca6fc52SDaniel Fojt EVP_PKEY_CTRL_GET1_ID_LEN, 0, (void*)(id_len)) 1100f5b1c8a1SJohn Marino 1101f5b1c8a1SJohn Marino #define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1) 1102cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2) 1103cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3) 1104cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4) 1105cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5) 1106cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6) 1107cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7) 1108cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8) 1109cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9) 1110cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10) 1111cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_SET1_ID (EVP_PKEY_ALG_CTRL + 11) 1112cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_GET1_ID (EVP_PKEY_ALG_CTRL + 12) 1113cca6fc52SDaniel Fojt #define EVP_PKEY_CTRL_GET1_ID_LEN (EVP_PKEY_ALG_CTRL + 13) 1114cca6fc52SDaniel Fojt 1115cca6fc52SDaniel Fojt /* KDF types */ 1116cca6fc52SDaniel Fojt #define EVP_PKEY_ECDH_KDF_NONE 1 1117cca6fc52SDaniel Fojt #define EVP_PKEY_ECDH_KDF_X9_63 2 1118f5b1c8a1SJohn Marino 1119f5b1c8a1SJohn Marino void ERR_load_EC_strings(void); 1120f5b1c8a1SJohn Marino 1121f5b1c8a1SJohn Marino /* Error codes for the EC functions. */ 1122f5b1c8a1SJohn Marino 1123f5b1c8a1SJohn Marino /* Function codes. */ 1124f5b1c8a1SJohn Marino #define EC_F_BN_TO_FELEM 224 1125f5b1c8a1SJohn Marino #define EC_F_COMPUTE_WNAF 143 1126f5b1c8a1SJohn Marino #define EC_F_D2I_ECPARAMETERS 144 1127f5b1c8a1SJohn Marino #define EC_F_D2I_ECPKPARAMETERS 145 1128f5b1c8a1SJohn Marino #define EC_F_D2I_ECPRIVATEKEY 146 1129f5b1c8a1SJohn Marino #define EC_F_DO_EC_KEY_PRINT 221 1130f5b1c8a1SJohn Marino #define EC_F_ECKEY_PARAM2TYPE 223 1131f5b1c8a1SJohn Marino #define EC_F_ECKEY_PARAM_DECODE 212 1132f5b1c8a1SJohn Marino #define EC_F_ECKEY_PRIV_DECODE 213 1133f5b1c8a1SJohn Marino #define EC_F_ECKEY_PRIV_ENCODE 214 1134f5b1c8a1SJohn Marino #define EC_F_ECKEY_PUB_DECODE 215 1135f5b1c8a1SJohn Marino #define EC_F_ECKEY_PUB_ENCODE 216 1136f5b1c8a1SJohn Marino #define EC_F_ECKEY_TYPE2PARAM 220 1137f5b1c8a1SJohn Marino #define EC_F_ECPARAMETERS_PRINT 147 1138f5b1c8a1SJohn Marino #define EC_F_ECPARAMETERS_PRINT_FP 148 1139f5b1c8a1SJohn Marino #define EC_F_ECPKPARAMETERS_PRINT 149 1140f5b1c8a1SJohn Marino #define EC_F_ECPKPARAMETERS_PRINT_FP 150 1141f5b1c8a1SJohn Marino #define EC_F_ECP_NIST_MOD_192 203 1142f5b1c8a1SJohn Marino #define EC_F_ECP_NIST_MOD_224 204 1143f5b1c8a1SJohn Marino #define EC_F_ECP_NIST_MOD_256 205 1144f5b1c8a1SJohn Marino #define EC_F_ECP_NIST_MOD_521 206 114572c33676SMaxim Ag #define EC_F_ECP_NISTZ256_GET_AFFINE 240 114672c33676SMaxim Ag #define EC_F_ECP_NISTZ256_MULT_PRECOMPUTE 243 114772c33676SMaxim Ag #define EC_F_ECP_NISTZ256_POINTS_MUL 241 114872c33676SMaxim Ag #define EC_F_ECP_NISTZ256_PRE_COMP_NEW 244 114972c33676SMaxim Ag #define EC_F_ECP_NISTZ256_SET_WORDS 245 115072c33676SMaxim Ag #define EC_F_ECP_NISTZ256_WINDOWED_MUL 242 1151f5b1c8a1SJohn Marino #define EC_F_EC_ASN1_GROUP2CURVE 153 1152f5b1c8a1SJohn Marino #define EC_F_EC_ASN1_GROUP2FIELDID 154 1153f5b1c8a1SJohn Marino #define EC_F_EC_ASN1_GROUP2PARAMETERS 155 1154f5b1c8a1SJohn Marino #define EC_F_EC_ASN1_GROUP2PKPARAMETERS 156 1155f5b1c8a1SJohn Marino #define EC_F_EC_ASN1_PARAMETERS2GROUP 157 1156f5b1c8a1SJohn Marino #define EC_F_EC_ASN1_PKPARAMETERS2GROUP 158 1157f5b1c8a1SJohn Marino #define EC_F_EC_EX_DATA_SET_DATA 211 1158f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_MONTGOMERY_POINT_MULTIPLY 208 1159f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_GROUP_CHECK_DISCRIMINANT 159 1160f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_GROUP_SET_CURVE 195 1161f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_OCT2POINT 160 1162f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_POINT2OCT 161 1163f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_POINT_GET_AFFINE_COORDINATES 162 1164f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_POINT_SET_AFFINE_COORDINATES 163 1165f5b1c8a1SJohn Marino #define EC_F_EC_GF2M_SIMPLE_SET_COMPRESSED_COORDINATES 164 1166f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_FIELD_DECODE 133 1167f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_FIELD_ENCODE 134 1168f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_FIELD_MUL 131 1169f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_FIELD_SET_TO_ONE 209 1170f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_FIELD_SQR 132 1171f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE 189 1172f5b1c8a1SJohn Marino #define EC_F_EC_GFP_MONT_GROUP_SET_CURVE_GFP 135 1173f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP224_GROUP_SET_CURVE 225 1174f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP224_POINTS_MUL 228 1175f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP224_POINT_GET_AFFINE_COORDINATES 226 1176f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP256_GROUP_SET_CURVE 230 1177f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP256_POINTS_MUL 231 1178f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP256_POINT_GET_AFFINE_COORDINATES 232 1179f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP521_GROUP_SET_CURVE 233 1180f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP521_POINTS_MUL 234 1181f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NISTP521_POINT_GET_AFFINE_COORDINATES 235 1182f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NIST_FIELD_MUL 200 1183f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NIST_FIELD_SQR 201 1184f5b1c8a1SJohn Marino #define EC_F_EC_GFP_NIST_GROUP_SET_CURVE 202 1185f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_GROUP_CHECK_DISCRIMINANT 165 1186f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE 166 1187f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_GROUP_SET_CURVE_GFP 100 1188f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_GROUP_SET_GENERATOR 101 1189f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_MAKE_AFFINE 102 1190f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_OCT2POINT 103 1191f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_POINT2OCT 104 1192f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_POINTS_MAKE_AFFINE 137 1193f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES 167 1194f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_POINT_GET_AFFINE_COORDINATES_GFP 105 1195f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES 168 1196f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_POINT_SET_AFFINE_COORDINATES_GFP 128 1197f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES 169 1198f5b1c8a1SJohn Marino #define EC_F_EC_GFP_SIMPLE_SET_COMPRESSED_COORDINATES_GFP 129 1199f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_CHECK 170 1200f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_CHECK_DISCRIMINANT 171 1201f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_COPY 106 1202f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET0_GENERATOR 139 1203f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_COFACTOR 140 1204f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_CURVE_GF2M 172 1205f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_CURVE_GFP 130 1206f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_DEGREE 173 1207f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_ORDER 141 1208f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_PENTANOMIAL_BASIS 193 1209f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_GET_TRINOMIAL_BASIS 194 1210f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_NEW 108 1211f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_NEW_BY_CURVE_NAME 174 1212f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_NEW_FROM_DATA 175 1213f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_PRECOMPUTE_MULT 142 1214f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_SET_CURVE_GF2M 176 1215f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_SET_CURVE_GFP 109 1216f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_SET_EXTRA_DATA 110 1217f5b1c8a1SJohn Marino #define EC_F_EC_GROUP_SET_GENERATOR 111 1218f5b1c8a1SJohn Marino #define EC_F_EC_KEY_CHECK_KEY 177 1219f5b1c8a1SJohn Marino #define EC_F_EC_KEY_COPY 178 1220f5b1c8a1SJohn Marino #define EC_F_EC_KEY_GENERATE_KEY 179 1221f5b1c8a1SJohn Marino #define EC_F_EC_KEY_NEW 182 1222f5b1c8a1SJohn Marino #define EC_F_EC_KEY_PRINT 180 1223f5b1c8a1SJohn Marino #define EC_F_EC_KEY_PRINT_FP 181 1224f5b1c8a1SJohn Marino #define EC_F_EC_KEY_SET_PUBLIC_KEY_AFFINE_COORDINATES 229 1225f5b1c8a1SJohn Marino #define EC_F_EC_POINTS_MAKE_AFFINE 136 1226f5b1c8a1SJohn Marino #define EC_F_EC_POINT_ADD 112 1227f5b1c8a1SJohn Marino #define EC_F_EC_POINT_CMP 113 1228f5b1c8a1SJohn Marino #define EC_F_EC_POINT_COPY 114 1229f5b1c8a1SJohn Marino #define EC_F_EC_POINT_DBL 115 1230f5b1c8a1SJohn Marino #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GF2M 183 1231f5b1c8a1SJohn Marino #define EC_F_EC_POINT_GET_AFFINE_COORDINATES_GFP 116 1232f5b1c8a1SJohn Marino #define EC_F_EC_POINT_GET_JPROJECTIVE_COORDINATES_GFP 117 1233f5b1c8a1SJohn Marino #define EC_F_EC_POINT_INVERT 210 1234f5b1c8a1SJohn Marino #define EC_F_EC_POINT_IS_AT_INFINITY 118 1235f5b1c8a1SJohn Marino #define EC_F_EC_POINT_IS_ON_CURVE 119 1236f5b1c8a1SJohn Marino #define EC_F_EC_POINT_MAKE_AFFINE 120 1237f5b1c8a1SJohn Marino #define EC_F_EC_POINT_MUL 184 1238f5b1c8a1SJohn Marino #define EC_F_EC_POINT_NEW 121 1239f5b1c8a1SJohn Marino #define EC_F_EC_POINT_OCT2POINT 122 1240f5b1c8a1SJohn Marino #define EC_F_EC_POINT_POINT2OCT 123 1241f5b1c8a1SJohn Marino #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GF2M 185 1242f5b1c8a1SJohn Marino #define EC_F_EC_POINT_SET_AFFINE_COORDINATES_GFP 124 1243f5b1c8a1SJohn Marino #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GF2M 186 1244f5b1c8a1SJohn Marino #define EC_F_EC_POINT_SET_COMPRESSED_COORDINATES_GFP 125 1245f5b1c8a1SJohn Marino #define EC_F_EC_POINT_SET_JPROJECTIVE_COORDINATES_GFP 126 1246f5b1c8a1SJohn Marino #define EC_F_EC_POINT_SET_TO_INFINITY 127 1247f5b1c8a1SJohn Marino #define EC_F_EC_PRE_COMP_DUP 207 1248f5b1c8a1SJohn Marino #define EC_F_EC_PRE_COMP_NEW 196 1249f5b1c8a1SJohn Marino #define EC_F_EC_WNAF_MUL 187 1250f5b1c8a1SJohn Marino #define EC_F_EC_WNAF_PRECOMPUTE_MULT 188 1251f5b1c8a1SJohn Marino #define EC_F_I2D_ECPARAMETERS 190 1252f5b1c8a1SJohn Marino #define EC_F_I2D_ECPKPARAMETERS 191 1253f5b1c8a1SJohn Marino #define EC_F_I2D_ECPRIVATEKEY 192 1254f5b1c8a1SJohn Marino #define EC_F_I2O_ECPUBLICKEY 151 1255f5b1c8a1SJohn Marino #define EC_F_NISTP224_PRE_COMP_NEW 227 1256f5b1c8a1SJohn Marino #define EC_F_NISTP256_PRE_COMP_NEW 236 1257f5b1c8a1SJohn Marino #define EC_F_NISTP521_PRE_COMP_NEW 237 1258f5b1c8a1SJohn Marino #define EC_F_O2I_ECPUBLICKEY 152 1259f5b1c8a1SJohn Marino #define EC_F_OLD_EC_PRIV_DECODE 222 1260f5b1c8a1SJohn Marino #define EC_F_PKEY_EC_CTRL 197 1261f5b1c8a1SJohn Marino #define EC_F_PKEY_EC_CTRL_STR 198 1262f5b1c8a1SJohn Marino #define EC_F_PKEY_EC_DERIVE 217 1263f5b1c8a1SJohn Marino #define EC_F_PKEY_EC_KEYGEN 199 1264f5b1c8a1SJohn Marino #define EC_F_PKEY_EC_PARAMGEN 219 1265f5b1c8a1SJohn Marino #define EC_F_PKEY_EC_SIGN 218 1266f5b1c8a1SJohn Marino 1267f5b1c8a1SJohn Marino /* Reason codes. */ 1268f5b1c8a1SJohn Marino #define EC_R_ASN1_ERROR 115 1269f5b1c8a1SJohn Marino #define EC_R_ASN1_UNKNOWN_FIELD 116 1270f5b1c8a1SJohn Marino #define EC_R_BIGNUM_OUT_OF_RANGE 144 1271f5b1c8a1SJohn Marino #define EC_R_BUFFER_TOO_SMALL 100 1272f5b1c8a1SJohn Marino #define EC_R_COORDINATES_OUT_OF_RANGE 146 1273f5b1c8a1SJohn Marino #define EC_R_D2I_ECPKPARAMETERS_FAILURE 117 1274f5b1c8a1SJohn Marino #define EC_R_DECODE_ERROR 142 1275f5b1c8a1SJohn Marino #define EC_R_DISCRIMINANT_IS_ZERO 118 1276f5b1c8a1SJohn Marino #define EC_R_EC_GROUP_NEW_BY_NAME_FAILURE 119 1277f5b1c8a1SJohn Marino #define EC_R_FIELD_TOO_LARGE 143 1278f5b1c8a1SJohn Marino #define EC_R_GF2M_NOT_SUPPORTED 147 1279f5b1c8a1SJohn Marino #define EC_R_GROUP2PKPARAMETERS_FAILURE 120 1280f5b1c8a1SJohn Marino #define EC_R_I2D_ECPKPARAMETERS_FAILURE 121 1281f5b1c8a1SJohn Marino #define EC_R_INCOMPATIBLE_OBJECTS 101 1282f5b1c8a1SJohn Marino #define EC_R_INVALID_ARGUMENT 112 1283f5b1c8a1SJohn Marino #define EC_R_INVALID_COMPRESSED_POINT 110 1284f5b1c8a1SJohn Marino #define EC_R_INVALID_COMPRESSION_BIT 109 1285f5b1c8a1SJohn Marino #define EC_R_INVALID_CURVE 141 1286cca6fc52SDaniel Fojt #define EC_R_INVALID_DIGEST 151 1287f5b1c8a1SJohn Marino #define EC_R_INVALID_DIGEST_TYPE 138 1288f5b1c8a1SJohn Marino #define EC_R_INVALID_ENCODING 102 1289f5b1c8a1SJohn Marino #define EC_R_INVALID_FIELD 103 1290f5b1c8a1SJohn Marino #define EC_R_INVALID_FORM 104 1291f5b1c8a1SJohn Marino #define EC_R_INVALID_GROUP_ORDER 122 1292f5b1c8a1SJohn Marino #define EC_R_INVALID_PENTANOMIAL_BASIS 132 1293f5b1c8a1SJohn Marino #define EC_R_INVALID_PRIVATE_KEY 123 1294f5b1c8a1SJohn Marino #define EC_R_INVALID_TRINOMIAL_BASIS 137 1295cca6fc52SDaniel Fojt #define EC_R_KDF_PARAMETER_ERROR 148 1296f5b1c8a1SJohn Marino #define EC_R_KEYS_NOT_SET 140 1297f5b1c8a1SJohn Marino #define EC_R_MISSING_PARAMETERS 124 1298f5b1c8a1SJohn Marino #define EC_R_MISSING_PRIVATE_KEY 125 1299f5b1c8a1SJohn Marino #define EC_R_NOT_A_NIST_PRIME 135 1300f5b1c8a1SJohn Marino #define EC_R_NOT_A_SUPPORTED_NIST_PRIME 136 1301f5b1c8a1SJohn Marino #define EC_R_NOT_IMPLEMENTED 126 1302f5b1c8a1SJohn Marino #define EC_R_NOT_INITIALIZED 111 1303f5b1c8a1SJohn Marino #define EC_R_NO_FIELD_MOD 133 1304f5b1c8a1SJohn Marino #define EC_R_NO_PARAMETERS_SET 139 1305f5b1c8a1SJohn Marino #define EC_R_PASSED_NULL_PARAMETER 134 1306cca6fc52SDaniel Fojt #define EC_R_PEER_KEY_ERROR 149 1307f5b1c8a1SJohn Marino #define EC_R_PKPARAMETERS2GROUP_FAILURE 127 1308f5b1c8a1SJohn Marino #define EC_R_POINT_AT_INFINITY 106 1309f5b1c8a1SJohn Marino #define EC_R_POINT_IS_NOT_ON_CURVE 107 1310cca6fc52SDaniel Fojt #define EC_R_SHARED_INFO_ERROR 150 1311f5b1c8a1SJohn Marino #define EC_R_SLOT_FULL 108 1312f5b1c8a1SJohn Marino #define EC_R_UNDEFINED_GENERATOR 113 1313f5b1c8a1SJohn Marino #define EC_R_UNDEFINED_ORDER 128 1314cca6fc52SDaniel Fojt #define EC_R_UNKNOWN_COFACTOR 164 1315f5b1c8a1SJohn Marino #define EC_R_UNKNOWN_GROUP 129 1316f5b1c8a1SJohn Marino #define EC_R_UNKNOWN_ORDER 114 1317f5b1c8a1SJohn Marino #define EC_R_UNSUPPORTED_FIELD 131 1318f5b1c8a1SJohn Marino #define EC_R_WRONG_CURVE_PARAMETERS 145 1319f5b1c8a1SJohn Marino #define EC_R_WRONG_ORDER 130 1320f5b1c8a1SJohn Marino 1321f5b1c8a1SJohn Marino #ifdef __cplusplus 1322f5b1c8a1SJohn Marino } 1323f5b1c8a1SJohn Marino #endif 1324f5b1c8a1SJohn Marino #endif 1325