1 | /*
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2 | * Copyright 2002-2022 The OpenSSL Project Authors. All Rights Reserved.
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3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
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4 | *
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5 | * Licensed under the Apache License 2.0 (the "License"). You may not use
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6 | * this file except in compliance with the License. You can obtain a copy
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7 | * in the file LICENSE in the source distribution or at
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8 | * https://www.openssl.org/source/license.html
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9 | */
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10 |
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11 | #ifndef OPENSSL_EC_H
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12 | # define OPENSSL_EC_H
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13 | # pragma once
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14 |
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15 | # include <openssl/macros.h>
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16 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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17 | # define HEADER_EC_H
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18 | # endif
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19 |
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20 | # include <openssl/opensslconf.h>
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21 | # include <openssl/types.h>
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22 |
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23 | # include <string.h>
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24 |
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25 | # ifdef __cplusplus
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26 | extern "C" {
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27 | # endif
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28 |
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29 | /* Values for EVP_PKEY_CTX_set_ec_param_enc() */
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30 | # define OPENSSL_EC_EXPLICIT_CURVE 0x000
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31 | # define OPENSSL_EC_NAMED_CURVE 0x001
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32 |
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33 | int EVP_PKEY_CTX_set_ec_paramgen_curve_nid(EVP_PKEY_CTX *ctx, int nid);
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34 | int EVP_PKEY_CTX_set_ec_param_enc(EVP_PKEY_CTX *ctx, int param_enc);
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35 | int EVP_PKEY_CTX_set_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx, int cofactor_mode);
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36 | int EVP_PKEY_CTX_get_ecdh_cofactor_mode(EVP_PKEY_CTX *ctx);
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37 |
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38 | int EVP_PKEY_CTX_set_ecdh_kdf_type(EVP_PKEY_CTX *ctx, int kdf);
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39 | int EVP_PKEY_CTX_get_ecdh_kdf_type(EVP_PKEY_CTX *ctx);
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40 |
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41 | int EVP_PKEY_CTX_set_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD *md);
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42 | int EVP_PKEY_CTX_get_ecdh_kdf_md(EVP_PKEY_CTX *ctx, const EVP_MD **md);
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43 |
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44 | int EVP_PKEY_CTX_set_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int len);
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45 | int EVP_PKEY_CTX_get_ecdh_kdf_outlen(EVP_PKEY_CTX *ctx, int *len);
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46 |
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47 | int EVP_PKEY_CTX_set0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char *ukm,
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48 | int len);
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49 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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50 | OSSL_DEPRECATEDIN_3_0
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51 | int EVP_PKEY_CTX_get0_ecdh_kdf_ukm(EVP_PKEY_CTX *ctx, unsigned char **ukm);
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52 | # endif
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53 |
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54 | # define EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID (EVP_PKEY_ALG_CTRL + 1)
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55 | # define EVP_PKEY_CTRL_EC_PARAM_ENC (EVP_PKEY_ALG_CTRL + 2)
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56 | # define EVP_PKEY_CTRL_EC_ECDH_COFACTOR (EVP_PKEY_ALG_CTRL + 3)
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57 | # define EVP_PKEY_CTRL_EC_KDF_TYPE (EVP_PKEY_ALG_CTRL + 4)
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58 | # define EVP_PKEY_CTRL_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 5)
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59 | # define EVP_PKEY_CTRL_GET_EC_KDF_MD (EVP_PKEY_ALG_CTRL + 6)
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60 | # define EVP_PKEY_CTRL_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 7)
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61 | # define EVP_PKEY_CTRL_GET_EC_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 8)
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62 | # define EVP_PKEY_CTRL_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 9)
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63 | # define EVP_PKEY_CTRL_GET_EC_KDF_UKM (EVP_PKEY_ALG_CTRL + 10)
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64 |
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65 | /* KDF types */
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66 | # define EVP_PKEY_ECDH_KDF_NONE 1
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67 | # define EVP_PKEY_ECDH_KDF_X9_63 2
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68 | /*
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69 | * The old name for EVP_PKEY_ECDH_KDF_X9_63
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70 | * The ECDH KDF specification has been mistakenly attributed to ANSI X9.62,
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71 | * it is actually specified in ANSI X9.63.
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72 | * This identifier is retained for backwards compatibility
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73 | */
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74 | # define EVP_PKEY_ECDH_KDF_X9_62 EVP_PKEY_ECDH_KDF_X9_63
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75 |
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76 | /** Enum for the point conversion form as defined in X9.62 (ECDSA)
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77 | * for the encoding of a elliptic curve point (x,y) */
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78 | typedef enum {
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79 | /** the point is encoded as z||x, where the octet z specifies
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80 | * which solution of the quadratic equation y is */
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81 | POINT_CONVERSION_COMPRESSED = 2,
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82 | /** the point is encoded as z||x||y, where z is the octet 0x04 */
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83 | POINT_CONVERSION_UNCOMPRESSED = 4,
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84 | /** the point is encoded as z||x||y, where the octet z specifies
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85 | * which solution of the quadratic equation y is */
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86 | POINT_CONVERSION_HYBRID = 6
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87 | } point_conversion_form_t;
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88 |
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89 | const char *OSSL_EC_curve_nid2name(int nid);
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90 |
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91 | # ifndef OPENSSL_NO_STDIO
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92 | # include <stdio.h>
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93 | # endif
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94 | # ifndef OPENSSL_NO_EC
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95 | # include <openssl/asn1.h>
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96 | # include <openssl/symhacks.h>
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97 | # ifndef OPENSSL_NO_DEPRECATED_1_1_0
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98 | # include <openssl/bn.h>
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99 | # endif
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100 | # include <openssl/ecerr.h>
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101 |
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102 | # ifndef OPENSSL_ECC_MAX_FIELD_BITS
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103 | # define OPENSSL_ECC_MAX_FIELD_BITS 661
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104 | # endif
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105 |
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106 | # include <openssl/params.h>
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107 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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108 | typedef struct ec_method_st EC_METHOD;
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109 | # endif
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110 | typedef struct ec_group_st EC_GROUP;
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111 | typedef struct ec_point_st EC_POINT;
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112 | typedef struct ecpk_parameters_st ECPKPARAMETERS;
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113 | typedef struct ec_parameters_st ECPARAMETERS;
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114 |
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115 | /********************************************************************/
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116 | /* EC_METHODs for curves over GF(p) */
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117 | /********************************************************************/
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118 |
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119 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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120 | /** Returns the basic GFp ec methods which provides the basis for the
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121 | * optimized methods.
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122 | * \return EC_METHOD object
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123 | */
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124 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_simple_method(void);
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125 |
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126 | /** Returns GFp methods using montgomery multiplication.
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127 | * \return EC_METHOD object
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128 | */
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129 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_mont_method(void);
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130 |
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131 | /** Returns GFp methods using optimized methods for NIST recommended curves
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132 | * \return EC_METHOD object
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133 | */
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134 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nist_method(void);
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135 |
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136 | # ifndef OPENSSL_NO_EC_NISTP_64_GCC_128
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137 | /** Returns 64-bit optimized methods for nistp224
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138 | * \return EC_METHOD object
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139 | */
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140 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp224_method(void);
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141 |
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142 | /** Returns 64-bit optimized methods for nistp256
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143 | * \return EC_METHOD object
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144 | */
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145 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp256_method(void);
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146 |
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147 | /** Returns 64-bit optimized methods for nistp521
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148 | * \return EC_METHOD object
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149 | */
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150 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GFp_nistp521_method(void);
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151 | # endif /* OPENSSL_NO_EC_NISTP_64_GCC_128 */
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152 |
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153 | # ifndef OPENSSL_NO_EC2M
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154 | /********************************************************************/
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155 | /* EC_METHOD for curves over GF(2^m) */
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156 | /********************************************************************/
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157 |
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158 | /** Returns the basic GF2m ec method
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159 | * \return EC_METHOD object
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160 | */
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161 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GF2m_simple_method(void);
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162 |
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163 | # endif
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164 |
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165 | /********************************************************************/
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166 | /* EC_GROUP functions */
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167 | /********************************************************************/
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168 |
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169 | /**
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170 | * Creates a new EC_GROUP object
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171 | * \param meth EC_METHOD to use
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172 | * \return newly created EC_GROUP object or NULL in case of an error.
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173 | */
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174 | OSSL_DEPRECATEDIN_3_0 EC_GROUP *EC_GROUP_new(const EC_METHOD *meth);
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175 |
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176 | /** Clears and frees a EC_GROUP object
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177 | * \param group EC_GROUP object to be cleared and freed.
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178 | */
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179 | OSSL_DEPRECATEDIN_3_0 void EC_GROUP_clear_free(EC_GROUP *group);
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180 |
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181 | /** Returns the EC_METHOD of the EC_GROUP object.
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182 | * \param group EC_GROUP object
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183 | * \return EC_METHOD used in this EC_GROUP object.
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184 | */
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185 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_GROUP_method_of(const EC_GROUP *group);
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186 |
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187 | /** Returns the field type of the EC_METHOD.
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188 | * \param meth EC_METHOD object
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189 | * \return NID of the underlying field type OID.
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190 | */
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191 | OSSL_DEPRECATEDIN_3_0 int EC_METHOD_get_field_type(const EC_METHOD *meth);
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192 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
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193 |
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194 | /** Frees a EC_GROUP object
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195 | * \param group EC_GROUP object to be freed.
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196 | */
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197 | void EC_GROUP_free(EC_GROUP *group);
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198 |
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199 | /** Copies EC_GROUP objects. Note: both EC_GROUPs must use the same EC_METHOD.
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200 | * \param dst destination EC_GROUP object
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201 | * \param src source EC_GROUP object
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202 | * \return 1 on success and 0 if an error occurred.
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203 | */
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204 | int EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src);
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205 |
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206 | /** Creates a new EC_GROUP object and copies the content
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207 | * form src to the newly created EC_KEY object
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208 | * \param src source EC_GROUP object
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209 | * \return newly created EC_GROUP object or NULL in case of an error.
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210 | */
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211 | EC_GROUP *EC_GROUP_dup(const EC_GROUP *src);
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212 |
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213 | /** Sets the generator and its order/cofactor of a EC_GROUP object.
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214 | * \param group EC_GROUP object
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215 | * \param generator EC_POINT object with the generator.
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216 | * \param order the order of the group generated by the generator.
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217 | * \param cofactor the index of the sub-group generated by the generator
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218 | * in the group of all points on the elliptic curve.
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219 | * \return 1 on success and 0 if an error occurred
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220 | */
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221 | int EC_GROUP_set_generator(EC_GROUP *group, const EC_POINT *generator,
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222 | const BIGNUM *order, const BIGNUM *cofactor);
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223 |
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224 | /** Returns the generator of a EC_GROUP object.
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225 | * \param group EC_GROUP object
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226 | * \return the currently used generator (possibly NULL).
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227 | */
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228 | const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
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229 |
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230 | /** Returns the montgomery data for order(Generator)
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231 | * \param group EC_GROUP object
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232 | * \return the currently used montgomery data (possibly NULL).
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233 | */
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234 | BN_MONT_CTX *EC_GROUP_get_mont_data(const EC_GROUP *group);
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235 |
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236 | /** Gets the order of a EC_GROUP
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237 | * \param group EC_GROUP object
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238 | * \param order BIGNUM to which the order is copied
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239 | * \param ctx unused
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240 | * \return 1 on success and 0 if an error occurred
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241 | */
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242 | int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
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243 |
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244 | /** Gets the order of an EC_GROUP
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245 | * \param group EC_GROUP object
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246 | * \return the group order
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247 | */
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248 | const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group);
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249 |
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250 | /** Gets the number of bits of the order of an EC_GROUP
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251 | * \param group EC_GROUP object
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252 | * \return number of bits of group order.
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253 | */
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254 | int EC_GROUP_order_bits(const EC_GROUP *group);
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255 |
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256 | /** Gets the cofactor of a EC_GROUP
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257 | * \param group EC_GROUP object
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258 | * \param cofactor BIGNUM to which the cofactor is copied
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259 | * \param ctx unused
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260 | * \return 1 on success and 0 if an error occurred
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261 | */
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262 | int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor,
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263 | BN_CTX *ctx);
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264 |
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265 | /** Gets the cofactor of an EC_GROUP
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266 | * \param group EC_GROUP object
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267 | * \return the group cofactor
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268 | */
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269 | const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group);
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270 |
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271 | /** Sets the name of a EC_GROUP object
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272 | * \param group EC_GROUP object
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273 | * \param nid NID of the curve name OID
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274 | */
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275 | void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
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276 |
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277 | /** Returns the curve name of a EC_GROUP object
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278 | * \param group EC_GROUP object
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279 | * \return NID of the curve name OID or 0 if not set.
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280 | */
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281 | int EC_GROUP_get_curve_name(const EC_GROUP *group);
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282 |
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283 | /** Gets the field of an EC_GROUP
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284 | * \param group EC_GROUP object
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285 | * \return the group field
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286 | */
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287 | const BIGNUM *EC_GROUP_get0_field(const EC_GROUP *group);
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288 |
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289 | /** Returns the field type of the EC_GROUP.
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290 | * \param group EC_GROUP object
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291 | * \return NID of the underlying field type OID.
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292 | */
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293 | int EC_GROUP_get_field_type(const EC_GROUP *group);
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294 |
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295 | void EC_GROUP_set_asn1_flag(EC_GROUP *group, int flag);
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296 | int EC_GROUP_get_asn1_flag(const EC_GROUP *group);
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297 |
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298 | void EC_GROUP_set_point_conversion_form(EC_GROUP *group,
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299 | point_conversion_form_t form);
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300 | point_conversion_form_t EC_GROUP_get_point_conversion_form(const EC_GROUP *);
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301 |
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302 | unsigned char *EC_GROUP_get0_seed(const EC_GROUP *x);
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303 | size_t EC_GROUP_get_seed_len(const EC_GROUP *);
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304 | size_t EC_GROUP_set_seed(EC_GROUP *, const unsigned char *, size_t len);
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305 |
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306 | /** Sets the parameters of an ec curve defined by y^2 = x^3 + a*x + b (for GFp)
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307 | * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m)
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308 | * \param group EC_GROUP object
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309 | * \param p BIGNUM with the prime number (GFp) or the polynomial
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310 | * defining the underlying field (GF2m)
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311 | * \param a BIGNUM with parameter a of the equation
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312 | * \param b BIGNUM with parameter b of the equation
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313 | * \param ctx BN_CTX object (optional)
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314 | * \return 1 on success and 0 if an error occurred
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315 | */
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316 | int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
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317 | const BIGNUM *b, BN_CTX *ctx);
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318 |
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319 | /** Gets the parameters of the ec curve defined by y^2 = x^3 + a*x + b (for GFp)
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320 | * or y^2 + x*y = x^3 + a*x^2 + b (for GF2m)
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321 | * \param group EC_GROUP object
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322 | * \param p BIGNUM with the prime number (GFp) or the polynomial
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323 | * defining the underlying field (GF2m)
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324 | * \param a BIGNUM for parameter a of the equation
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325 | * \param b BIGNUM for parameter b of the equation
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326 | * \param ctx BN_CTX object (optional)
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327 | * \return 1 on success and 0 if an error occurred
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328 | */
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329 | int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b,
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330 | BN_CTX *ctx);
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331 |
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332 | # ifndef OPENSSL_NO_DEPRECATED_3_0
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333 | /** Sets the parameters of an ec curve. Synonym for EC_GROUP_set_curve
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334 | * \param group EC_GROUP object
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335 | * \param p BIGNUM with the prime number (GFp) or the polynomial
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336 | * defining the underlying field (GF2m)
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337 | * \param a BIGNUM with parameter a of the equation
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338 | * \param b BIGNUM with parameter b of the equation
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339 | * \param ctx BN_CTX object (optional)
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340 | * \return 1 on success and 0 if an error occurred
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341 | */
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342 | OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GFp(EC_GROUP *group,
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343 | const BIGNUM *p,
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344 | const BIGNUM *a,
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345 | const BIGNUM *b,
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346 | BN_CTX *ctx);
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347 |
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348 | /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve
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349 | * \param group EC_GROUP object
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350 | * \param p BIGNUM with the prime number (GFp) or the polynomial
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351 | * defining the underlying field (GF2m)
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352 | * \param a BIGNUM for parameter a of the equation
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353 | * \param b BIGNUM for parameter b of the equation
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354 | * \param ctx BN_CTX object (optional)
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355 | * \return 1 on success and 0 if an error occurred
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356 | */
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357 | OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GFp(const EC_GROUP *group,
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358 | BIGNUM *p,
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359 | BIGNUM *a, BIGNUM *b,
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360 | BN_CTX *ctx);
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361 |
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362 | # ifndef OPENSSL_NO_EC2M
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363 | /** Sets the parameter of an ec curve. Synonym for EC_GROUP_set_curve
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364 | * \param group EC_GROUP object
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365 | * \param p BIGNUM with the prime number (GFp) or the polynomial
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366 | * defining the underlying field (GF2m)
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367 | * \param a BIGNUM with parameter a of the equation
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368 | * \param b BIGNUM with parameter b of the equation
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369 | * \param ctx BN_CTX object (optional)
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370 | * \return 1 on success and 0 if an error occurred
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371 | */
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372 | OSSL_DEPRECATEDIN_3_0 int EC_GROUP_set_curve_GF2m(EC_GROUP *group,
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373 | const BIGNUM *p,
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374 | const BIGNUM *a,
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375 | const BIGNUM *b,
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376 | BN_CTX *ctx);
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377 |
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378 | /** Gets the parameters of an ec curve. Synonym for EC_GROUP_get_curve
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379 | * \param group EC_GROUP object
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380 | * \param p BIGNUM with the prime number (GFp) or the polynomial
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381 | * defining the underlying field (GF2m)
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382 | * \param a BIGNUM for parameter a of the equation
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383 | * \param b BIGNUM for parameter b of the equation
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384 | * \param ctx BN_CTX object (optional)
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385 | * \return 1 on success and 0 if an error occurred
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386 | */
|
---|
387 | OSSL_DEPRECATEDIN_3_0 int EC_GROUP_get_curve_GF2m(const EC_GROUP *group,
|
---|
388 | BIGNUM *p,
|
---|
389 | BIGNUM *a, BIGNUM *b,
|
---|
390 | BN_CTX *ctx);
|
---|
391 | # endif /* OPENSSL_NO_EC2M */
|
---|
392 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
393 |
|
---|
394 | /** Returns the number of bits needed to represent a field element
|
---|
395 | * \param group EC_GROUP object
|
---|
396 | * \return number of bits needed to represent a field element
|
---|
397 | */
|
---|
398 | int EC_GROUP_get_degree(const EC_GROUP *group);
|
---|
399 |
|
---|
400 | /** Checks whether the parameter in the EC_GROUP define a valid ec group
|
---|
401 | * \param group EC_GROUP object
|
---|
402 | * \param ctx BN_CTX object (optional)
|
---|
403 | * \return 1 if group is a valid ec group and 0 otherwise
|
---|
404 | */
|
---|
405 | int EC_GROUP_check(const EC_GROUP *group, BN_CTX *ctx);
|
---|
406 |
|
---|
407 | /** Checks whether the discriminant of the elliptic curve is zero or not
|
---|
408 | * \param group EC_GROUP object
|
---|
409 | * \param ctx BN_CTX object (optional)
|
---|
410 | * \return 1 if the discriminant is not zero and 0 otherwise
|
---|
411 | */
|
---|
412 | int EC_GROUP_check_discriminant(const EC_GROUP *group, BN_CTX *ctx);
|
---|
413 |
|
---|
414 | /** Compares two EC_GROUP objects
|
---|
415 | * \param a first EC_GROUP object
|
---|
416 | * \param b second EC_GROUP object
|
---|
417 | * \param ctx BN_CTX object (optional)
|
---|
418 | * \return 0 if the groups are equal, 1 if not, or -1 on error
|
---|
419 | */
|
---|
420 | int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx);
|
---|
421 |
|
---|
422 | /*
|
---|
423 | * EC_GROUP_new_GF*() calls EC_GROUP_new() and EC_GROUP_set_GF*() after
|
---|
424 | * choosing an appropriate EC_METHOD
|
---|
425 | */
|
---|
426 |
|
---|
427 | /** Creates a new EC_GROUP object with the specified parameters defined
|
---|
428 | * over GFp (defined by the equation y^2 = x^3 + a*x + b)
|
---|
429 | * \param p BIGNUM with the prime number
|
---|
430 | * \param a BIGNUM with the parameter a of the equation
|
---|
431 | * \param b BIGNUM with the parameter b of the equation
|
---|
432 | * \param ctx BN_CTX object (optional)
|
---|
433 | * \return newly created EC_GROUP object with the specified parameters
|
---|
434 | */
|
---|
435 | EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a,
|
---|
436 | const BIGNUM *b, BN_CTX *ctx);
|
---|
437 | # ifndef OPENSSL_NO_EC2M
|
---|
438 | /** Creates a new EC_GROUP object with the specified parameters defined
|
---|
439 | * over GF2m (defined by the equation y^2 + x*y = x^3 + a*x^2 + b)
|
---|
440 | * \param p BIGNUM with the polynomial defining the underlying field
|
---|
441 | * \param a BIGNUM with the parameter a of the equation
|
---|
442 | * \param b BIGNUM with the parameter b of the equation
|
---|
443 | * \param ctx BN_CTX object (optional)
|
---|
444 | * \return newly created EC_GROUP object with the specified parameters
|
---|
445 | */
|
---|
446 | EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a,
|
---|
447 | const BIGNUM *b, BN_CTX *ctx);
|
---|
448 | # endif
|
---|
449 |
|
---|
450 | /**
|
---|
451 | * Creates a EC_GROUP object with a curve specified by parameters.
|
---|
452 | * The parameters may be explicit or a named curve,
|
---|
453 | * \param params A list of parameters describing the group.
|
---|
454 | * \param libctx The associated library context or NULL for the default
|
---|
455 | * context
|
---|
456 | * \param propq A property query string
|
---|
457 | * \return newly created EC_GROUP object with specified parameters or NULL
|
---|
458 | * if an error occurred
|
---|
459 | */
|
---|
460 | EC_GROUP *EC_GROUP_new_from_params(const OSSL_PARAM params[],
|
---|
461 | OSSL_LIB_CTX *libctx, const char *propq);
|
---|
462 |
|
---|
463 | /**
|
---|
464 | * Creates a EC_GROUP object with a curve specified by a NID
|
---|
465 | * \param libctx The associated library context or NULL for the default
|
---|
466 | * context
|
---|
467 | * \param propq A property query string
|
---|
468 | * \param nid NID of the OID of the curve name
|
---|
469 | * \return newly created EC_GROUP object with specified curve or NULL
|
---|
470 | * if an error occurred
|
---|
471 | */
|
---|
472 | EC_GROUP *EC_GROUP_new_by_curve_name_ex(OSSL_LIB_CTX *libctx, const char *propq,
|
---|
473 | int nid);
|
---|
474 |
|
---|
475 | /**
|
---|
476 | * Creates a EC_GROUP object with a curve specified by a NID. Same as
|
---|
477 | * EC_GROUP_new_by_curve_name_ex but the libctx and propq are always
|
---|
478 | * NULL.
|
---|
479 | * \param nid NID of the OID of the curve name
|
---|
480 | * \return newly created EC_GROUP object with specified curve or NULL
|
---|
481 | * if an error occurred
|
---|
482 | */
|
---|
483 | EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
|
---|
484 |
|
---|
485 | /** Creates a new EC_GROUP object from an ECPARAMETERS object
|
---|
486 | * \param params pointer to the ECPARAMETERS object
|
---|
487 | * \return newly created EC_GROUP object with specified curve or NULL
|
---|
488 | * if an error occurred
|
---|
489 | */
|
---|
490 | EC_GROUP *EC_GROUP_new_from_ecparameters(const ECPARAMETERS *params);
|
---|
491 |
|
---|
492 | /** Creates an ECPARAMETERS object for the given EC_GROUP object.
|
---|
493 | * \param group pointer to the EC_GROUP object
|
---|
494 | * \param params pointer to an existing ECPARAMETERS object or NULL
|
---|
495 | * \return pointer to the new ECPARAMETERS object or NULL
|
---|
496 | * if an error occurred.
|
---|
497 | */
|
---|
498 | ECPARAMETERS *EC_GROUP_get_ecparameters(const EC_GROUP *group,
|
---|
499 | ECPARAMETERS *params);
|
---|
500 |
|
---|
501 | /** Creates a new EC_GROUP object from an ECPKPARAMETERS object
|
---|
502 | * \param params pointer to an existing ECPKPARAMETERS object, or NULL
|
---|
503 | * \return newly created EC_GROUP object with specified curve, or NULL
|
---|
504 | * if an error occurred
|
---|
505 | */
|
---|
506 | EC_GROUP *EC_GROUP_new_from_ecpkparameters(const ECPKPARAMETERS *params);
|
---|
507 |
|
---|
508 | /** Creates an ECPKPARAMETERS object for the given EC_GROUP object.
|
---|
509 | * \param group pointer to the EC_GROUP object
|
---|
510 | * \param params pointer to an existing ECPKPARAMETERS object or NULL
|
---|
511 | * \return pointer to the new ECPKPARAMETERS object or NULL
|
---|
512 | * if an error occurred.
|
---|
513 | */
|
---|
514 | ECPKPARAMETERS *EC_GROUP_get_ecpkparameters(const EC_GROUP *group,
|
---|
515 | ECPKPARAMETERS *params);
|
---|
516 |
|
---|
517 | /********************************************************************/
|
---|
518 | /* handling of internal curves */
|
---|
519 | /********************************************************************/
|
---|
520 |
|
---|
521 | typedef struct {
|
---|
522 | int nid;
|
---|
523 | const char *comment;
|
---|
524 | } EC_builtin_curve;
|
---|
525 |
|
---|
526 | /*
|
---|
527 | * EC_builtin_curves(EC_builtin_curve *r, size_t size) returns number of all
|
---|
528 | * available curves or zero if a error occurred. In case r is not zero,
|
---|
529 | * nitems EC_builtin_curve structures are filled with the data of the first
|
---|
530 | * nitems internal groups
|
---|
531 | */
|
---|
532 | size_t EC_get_builtin_curves(EC_builtin_curve *r, size_t nitems);
|
---|
533 |
|
---|
534 | const char *EC_curve_nid2nist(int nid);
|
---|
535 | int EC_curve_nist2nid(const char *name);
|
---|
536 | int EC_GROUP_check_named_curve(const EC_GROUP *group, int nist_only,
|
---|
537 | BN_CTX *ctx);
|
---|
538 |
|
---|
539 | /********************************************************************/
|
---|
540 | /* EC_POINT functions */
|
---|
541 | /********************************************************************/
|
---|
542 |
|
---|
543 | /** Creates a new EC_POINT object for the specified EC_GROUP
|
---|
544 | * \param group EC_GROUP the underlying EC_GROUP object
|
---|
545 | * \return newly created EC_POINT object or NULL if an error occurred
|
---|
546 | */
|
---|
547 | EC_POINT *EC_POINT_new(const EC_GROUP *group);
|
---|
548 |
|
---|
549 | /** Frees a EC_POINT object
|
---|
550 | * \param point EC_POINT object to be freed
|
---|
551 | */
|
---|
552 | void EC_POINT_free(EC_POINT *point);
|
---|
553 |
|
---|
554 | /** Clears and frees a EC_POINT object
|
---|
555 | * \param point EC_POINT object to be cleared and freed
|
---|
556 | */
|
---|
557 | void EC_POINT_clear_free(EC_POINT *point);
|
---|
558 |
|
---|
559 | /** Copies EC_POINT object
|
---|
560 | * \param dst destination EC_POINT object
|
---|
561 | * \param src source EC_POINT object
|
---|
562 | * \return 1 on success and 0 if an error occurred
|
---|
563 | */
|
---|
564 | int EC_POINT_copy(EC_POINT *dst, const EC_POINT *src);
|
---|
565 |
|
---|
566 | /** Creates a new EC_POINT object and copies the content of the supplied
|
---|
567 | * EC_POINT
|
---|
568 | * \param src source EC_POINT object
|
---|
569 | * \param group underlying the EC_GROUP object
|
---|
570 | * \return newly created EC_POINT object or NULL if an error occurred
|
---|
571 | */
|
---|
572 | EC_POINT *EC_POINT_dup(const EC_POINT *src, const EC_GROUP *group);
|
---|
573 |
|
---|
574 | /** Sets a point to infinity (neutral element)
|
---|
575 | * \param group underlying EC_GROUP object
|
---|
576 | * \param point EC_POINT to set to infinity
|
---|
577 | * \return 1 on success and 0 if an error occurred
|
---|
578 | */
|
---|
579 | int EC_POINT_set_to_infinity(const EC_GROUP *group, EC_POINT *point);
|
---|
580 |
|
---|
581 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
582 | /** Returns the EC_METHOD used in EC_POINT object
|
---|
583 | * \param point EC_POINT object
|
---|
584 | * \return the EC_METHOD used
|
---|
585 | */
|
---|
586 | OSSL_DEPRECATEDIN_3_0 const EC_METHOD *EC_POINT_method_of(const EC_POINT *point);
|
---|
587 |
|
---|
588 | /** Sets the jacobian projective coordinates of a EC_POINT over GFp
|
---|
589 | * \param group underlying EC_GROUP object
|
---|
590 | * \param p EC_POINT object
|
---|
591 | * \param x BIGNUM with the x-coordinate
|
---|
592 | * \param y BIGNUM with the y-coordinate
|
---|
593 | * \param z BIGNUM with the z-coordinate
|
---|
594 | * \param ctx BN_CTX object (optional)
|
---|
595 | * \return 1 on success and 0 if an error occurred
|
---|
596 | */
|
---|
597 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_Jprojective_coordinates_GFp
|
---|
598 | (const EC_GROUP *group, EC_POINT *p,
|
---|
599 | const BIGNUM *x, const BIGNUM *y, const BIGNUM *z,
|
---|
600 | BN_CTX *ctx);
|
---|
601 |
|
---|
602 | /** Gets the jacobian projective coordinates of a EC_POINT over GFp
|
---|
603 | * \param group underlying EC_GROUP object
|
---|
604 | * \param p EC_POINT object
|
---|
605 | * \param x BIGNUM for the x-coordinate
|
---|
606 | * \param y BIGNUM for the y-coordinate
|
---|
607 | * \param z BIGNUM for the z-coordinate
|
---|
608 | * \param ctx BN_CTX object (optional)
|
---|
609 | * \return 1 on success and 0 if an error occurred
|
---|
610 | */
|
---|
611 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_Jprojective_coordinates_GFp
|
---|
612 | (const EC_GROUP *group, const EC_POINT *p,
|
---|
613 | BIGNUM *x, BIGNUM *y, BIGNUM *z, BN_CTX *ctx);
|
---|
614 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
615 |
|
---|
616 | /** Sets the affine coordinates of an EC_POINT
|
---|
617 | * \param group underlying EC_GROUP object
|
---|
618 | * \param p EC_POINT object
|
---|
619 | * \param x BIGNUM with the x-coordinate
|
---|
620 | * \param y BIGNUM with the y-coordinate
|
---|
621 | * \param ctx BN_CTX object (optional)
|
---|
622 | * \return 1 on success and 0 if an error occurred
|
---|
623 | */
|
---|
624 | int EC_POINT_set_affine_coordinates(const EC_GROUP *group, EC_POINT *p,
|
---|
625 | const BIGNUM *x, const BIGNUM *y,
|
---|
626 | BN_CTX *ctx);
|
---|
627 |
|
---|
628 | /** Gets the affine coordinates of an EC_POINT.
|
---|
629 | * \param group underlying EC_GROUP object
|
---|
630 | * \param p EC_POINT object
|
---|
631 | * \param x BIGNUM for the x-coordinate
|
---|
632 | * \param y BIGNUM for the y-coordinate
|
---|
633 | * \param ctx BN_CTX object (optional)
|
---|
634 | * \return 1 on success and 0 if an error occurred
|
---|
635 | */
|
---|
636 | int EC_POINT_get_affine_coordinates(const EC_GROUP *group, const EC_POINT *p,
|
---|
637 | BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
|
---|
638 |
|
---|
639 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
640 | /** Sets the affine coordinates of an EC_POINT. A synonym of
|
---|
641 | * EC_POINT_set_affine_coordinates
|
---|
642 | * \param group underlying EC_GROUP object
|
---|
643 | * \param p EC_POINT object
|
---|
644 | * \param x BIGNUM with the x-coordinate
|
---|
645 | * \param y BIGNUM with the y-coordinate
|
---|
646 | * \param ctx BN_CTX object (optional)
|
---|
647 | * \return 1 on success and 0 if an error occurred
|
---|
648 | */
|
---|
649 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GFp
|
---|
650 | (const EC_GROUP *group, EC_POINT *p,
|
---|
651 | const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
|
---|
652 |
|
---|
653 | /** Gets the affine coordinates of an EC_POINT. A synonym of
|
---|
654 | * EC_POINT_get_affine_coordinates
|
---|
655 | * \param group underlying EC_GROUP object
|
---|
656 | * \param p EC_POINT object
|
---|
657 | * \param x BIGNUM for the x-coordinate
|
---|
658 | * \param y BIGNUM for the y-coordinate
|
---|
659 | * \param ctx BN_CTX object (optional)
|
---|
660 | * \return 1 on success and 0 if an error occurred
|
---|
661 | */
|
---|
662 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GFp
|
---|
663 | (const EC_GROUP *group, const EC_POINT *p,
|
---|
664 | BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
|
---|
665 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
666 |
|
---|
667 | /** Sets the x9.62 compressed coordinates of a EC_POINT
|
---|
668 | * \param group underlying EC_GROUP object
|
---|
669 | * \param p EC_POINT object
|
---|
670 | * \param x BIGNUM with x-coordinate
|
---|
671 | * \param y_bit integer with the y-Bit (either 0 or 1)
|
---|
672 | * \param ctx BN_CTX object (optional)
|
---|
673 | * \return 1 on success and 0 if an error occurred
|
---|
674 | */
|
---|
675 | int EC_POINT_set_compressed_coordinates(const EC_GROUP *group, EC_POINT *p,
|
---|
676 | const BIGNUM *x, int y_bit,
|
---|
677 | BN_CTX *ctx);
|
---|
678 |
|
---|
679 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
680 | /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of
|
---|
681 | * EC_POINT_set_compressed_coordinates
|
---|
682 | * \param group underlying EC_GROUP object
|
---|
683 | * \param p EC_POINT object
|
---|
684 | * \param x BIGNUM with x-coordinate
|
---|
685 | * \param y_bit integer with the y-Bit (either 0 or 1)
|
---|
686 | * \param ctx BN_CTX object (optional)
|
---|
687 | * \return 1 on success and 0 if an error occurred
|
---|
688 | */
|
---|
689 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GFp
|
---|
690 | (const EC_GROUP *group, EC_POINT *p,
|
---|
691 | const BIGNUM *x, int y_bit, BN_CTX *ctx);
|
---|
692 | # ifndef OPENSSL_NO_EC2M
|
---|
693 | /** Sets the affine coordinates of an EC_POINT. A synonym of
|
---|
694 | * EC_POINT_set_affine_coordinates
|
---|
695 | * \param group underlying EC_GROUP object
|
---|
696 | * \param p EC_POINT object
|
---|
697 | * \param x BIGNUM with the x-coordinate
|
---|
698 | * \param y BIGNUM with the y-coordinate
|
---|
699 | * \param ctx BN_CTX object (optional)
|
---|
700 | * \return 1 on success and 0 if an error occurred
|
---|
701 | */
|
---|
702 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_affine_coordinates_GF2m
|
---|
703 | (const EC_GROUP *group, EC_POINT *p,
|
---|
704 | const BIGNUM *x, const BIGNUM *y, BN_CTX *ctx);
|
---|
705 |
|
---|
706 | /** Gets the affine coordinates of an EC_POINT. A synonym of
|
---|
707 | * EC_POINT_get_affine_coordinates
|
---|
708 | * \param group underlying EC_GROUP object
|
---|
709 | * \param p EC_POINT object
|
---|
710 | * \param x BIGNUM for the x-coordinate
|
---|
711 | * \param y BIGNUM for the y-coordinate
|
---|
712 | * \param ctx BN_CTX object (optional)
|
---|
713 | * \return 1 on success and 0 if an error occurred
|
---|
714 | */
|
---|
715 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_get_affine_coordinates_GF2m
|
---|
716 | (const EC_GROUP *group, const EC_POINT *p,
|
---|
717 | BIGNUM *x, BIGNUM *y, BN_CTX *ctx);
|
---|
718 |
|
---|
719 | /** Sets the x9.62 compressed coordinates of a EC_POINT. A synonym of
|
---|
720 | * EC_POINT_set_compressed_coordinates
|
---|
721 | * \param group underlying EC_GROUP object
|
---|
722 | * \param p EC_POINT object
|
---|
723 | * \param x BIGNUM with x-coordinate
|
---|
724 | * \param y_bit integer with the y-Bit (either 0 or 1)
|
---|
725 | * \param ctx BN_CTX object (optional)
|
---|
726 | * \return 1 on success and 0 if an error occurred
|
---|
727 | */
|
---|
728 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_set_compressed_coordinates_GF2m
|
---|
729 | (const EC_GROUP *group, EC_POINT *p,
|
---|
730 | const BIGNUM *x, int y_bit, BN_CTX *ctx);
|
---|
731 | # endif
|
---|
732 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
733 |
|
---|
734 | /** Encodes a EC_POINT object to a octet string
|
---|
735 | * \param group underlying EC_GROUP object
|
---|
736 | * \param p EC_POINT object
|
---|
737 | * \param form point conversion form
|
---|
738 | * \param buf memory buffer for the result. If NULL the function returns
|
---|
739 | * required buffer size.
|
---|
740 | * \param len length of the memory buffer
|
---|
741 | * \param ctx BN_CTX object (optional)
|
---|
742 | * \return the length of the encoded octet string or 0 if an error occurred
|
---|
743 | */
|
---|
744 | size_t EC_POINT_point2oct(const EC_GROUP *group, const EC_POINT *p,
|
---|
745 | point_conversion_form_t form,
|
---|
746 | unsigned char *buf, size_t len, BN_CTX *ctx);
|
---|
747 |
|
---|
748 | /** Decodes a EC_POINT from a octet string
|
---|
749 | * \param group underlying EC_GROUP object
|
---|
750 | * \param p EC_POINT object
|
---|
751 | * \param buf memory buffer with the encoded ec point
|
---|
752 | * \param len length of the encoded ec point
|
---|
753 | * \param ctx BN_CTX object (optional)
|
---|
754 | * \return 1 on success and 0 if an error occurred
|
---|
755 | */
|
---|
756 | int EC_POINT_oct2point(const EC_GROUP *group, EC_POINT *p,
|
---|
757 | const unsigned char *buf, size_t len, BN_CTX *ctx);
|
---|
758 |
|
---|
759 | /** Encodes an EC_POINT object to an allocated octet string
|
---|
760 | * \param group underlying EC_GROUP object
|
---|
761 | * \param point EC_POINT object
|
---|
762 | * \param form point conversion form
|
---|
763 | * \param pbuf returns pointer to allocated buffer
|
---|
764 | * \param ctx BN_CTX object (optional)
|
---|
765 | * \return the length of the encoded octet string or 0 if an error occurred
|
---|
766 | */
|
---|
767 | size_t EC_POINT_point2buf(const EC_GROUP *group, const EC_POINT *point,
|
---|
768 | point_conversion_form_t form,
|
---|
769 | unsigned char **pbuf, BN_CTX *ctx);
|
---|
770 |
|
---|
771 | /* other interfaces to point2oct/oct2point: */
|
---|
772 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
773 | OSSL_DEPRECATEDIN_3_0 BIGNUM *EC_POINT_point2bn(const EC_GROUP *,
|
---|
774 | const EC_POINT *,
|
---|
775 | point_conversion_form_t form,
|
---|
776 | BIGNUM *, BN_CTX *);
|
---|
777 | OSSL_DEPRECATEDIN_3_0 EC_POINT *EC_POINT_bn2point(const EC_GROUP *,
|
---|
778 | const BIGNUM *,
|
---|
779 | EC_POINT *, BN_CTX *);
|
---|
780 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
781 |
|
---|
782 | char *EC_POINT_point2hex(const EC_GROUP *, const EC_POINT *,
|
---|
783 | point_conversion_form_t form, BN_CTX *);
|
---|
784 | EC_POINT *EC_POINT_hex2point(const EC_GROUP *, const char *,
|
---|
785 | EC_POINT *, BN_CTX *);
|
---|
786 |
|
---|
787 | /********************************************************************/
|
---|
788 | /* functions for doing EC_POINT arithmetic */
|
---|
789 | /********************************************************************/
|
---|
790 |
|
---|
791 | /** Computes the sum of two EC_POINT
|
---|
792 | * \param group underlying EC_GROUP object
|
---|
793 | * \param r EC_POINT object for the result (r = a + b)
|
---|
794 | * \param a EC_POINT object with the first summand
|
---|
795 | * \param b EC_POINT object with the second summand
|
---|
796 | * \param ctx BN_CTX object (optional)
|
---|
797 | * \return 1 on success and 0 if an error occurred
|
---|
798 | */
|
---|
799 | int EC_POINT_add(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
|
---|
800 | const EC_POINT *b, BN_CTX *ctx);
|
---|
801 |
|
---|
802 | /** Computes the double of a EC_POINT
|
---|
803 | * \param group underlying EC_GROUP object
|
---|
804 | * \param r EC_POINT object for the result (r = 2 * a)
|
---|
805 | * \param a EC_POINT object
|
---|
806 | * \param ctx BN_CTX object (optional)
|
---|
807 | * \return 1 on success and 0 if an error occurred
|
---|
808 | */
|
---|
809 | int EC_POINT_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
|
---|
810 | BN_CTX *ctx);
|
---|
811 |
|
---|
812 | /** Computes the inverse of a EC_POINT
|
---|
813 | * \param group underlying EC_GROUP object
|
---|
814 | * \param a EC_POINT object to be inverted (it's used for the result as well)
|
---|
815 | * \param ctx BN_CTX object (optional)
|
---|
816 | * \return 1 on success and 0 if an error occurred
|
---|
817 | */
|
---|
818 | int EC_POINT_invert(const EC_GROUP *group, EC_POINT *a, BN_CTX *ctx);
|
---|
819 |
|
---|
820 | /** Checks whether the point is the neutral element of the group
|
---|
821 | * \param group the underlying EC_GROUP object
|
---|
822 | * \param p EC_POINT object
|
---|
823 | * \return 1 if the point is the neutral element and 0 otherwise
|
---|
824 | */
|
---|
825 | int EC_POINT_is_at_infinity(const EC_GROUP *group, const EC_POINT *p);
|
---|
826 |
|
---|
827 | /** Checks whether the point is on the curve
|
---|
828 | * \param group underlying EC_GROUP object
|
---|
829 | * \param point EC_POINT object to check
|
---|
830 | * \param ctx BN_CTX object (optional)
|
---|
831 | * \return 1 if the point is on the curve, 0 if not, or -1 on error
|
---|
832 | */
|
---|
833 | int EC_POINT_is_on_curve(const EC_GROUP *group, const EC_POINT *point,
|
---|
834 | BN_CTX *ctx);
|
---|
835 |
|
---|
836 | /** Compares two EC_POINTs
|
---|
837 | * \param group underlying EC_GROUP object
|
---|
838 | * \param a first EC_POINT object
|
---|
839 | * \param b second EC_POINT object
|
---|
840 | * \param ctx BN_CTX object (optional)
|
---|
841 | * \return 1 if the points are not equal, 0 if they are, or -1 on error
|
---|
842 | */
|
---|
843 | int EC_POINT_cmp(const EC_GROUP *group, const EC_POINT *a, const EC_POINT *b,
|
---|
844 | BN_CTX *ctx);
|
---|
845 |
|
---|
846 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
847 | OSSL_DEPRECATEDIN_3_0 int EC_POINT_make_affine(const EC_GROUP *group,
|
---|
848 | EC_POINT *point, BN_CTX *ctx);
|
---|
849 | OSSL_DEPRECATEDIN_3_0 int EC_POINTs_make_affine(const EC_GROUP *group, size_t num,
|
---|
850 | EC_POINT *points[], BN_CTX *ctx);
|
---|
851 |
|
---|
852 | /** Computes r = generator * n + sum_{i=0}^{num-1} p[i] * m[i]
|
---|
853 | * \param group underlying EC_GROUP object
|
---|
854 | * \param r EC_POINT object for the result
|
---|
855 | * \param n BIGNUM with the multiplier for the group generator (optional)
|
---|
856 | * \param num number further summands
|
---|
857 | * \param p array of size num of EC_POINT objects
|
---|
858 | * \param m array of size num of BIGNUM objects
|
---|
859 | * \param ctx BN_CTX object (optional)
|
---|
860 | * \return 1 on success and 0 if an error occurred
|
---|
861 | */
|
---|
862 | OSSL_DEPRECATEDIN_3_0 int EC_POINTs_mul(const EC_GROUP *group, EC_POINT *r,
|
---|
863 | const BIGNUM *n, size_t num,
|
---|
864 | const EC_POINT *p[], const BIGNUM *m[],
|
---|
865 | BN_CTX *ctx);
|
---|
866 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
867 |
|
---|
868 | /** Computes r = generator * n + q * m
|
---|
869 | * \param group underlying EC_GROUP object
|
---|
870 | * \param r EC_POINT object for the result
|
---|
871 | * \param n BIGNUM with the multiplier for the group generator (optional)
|
---|
872 | * \param q EC_POINT object with the first factor of the second summand
|
---|
873 | * \param m BIGNUM with the second factor of the second summand
|
---|
874 | * \param ctx BN_CTX object (optional)
|
---|
875 | * \return 1 on success and 0 if an error occurred
|
---|
876 | */
|
---|
877 | int EC_POINT_mul(const EC_GROUP *group, EC_POINT *r, const BIGNUM *n,
|
---|
878 | const EC_POINT *q, const BIGNUM *m, BN_CTX *ctx);
|
---|
879 |
|
---|
880 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
881 | /** Stores multiples of generator for faster point multiplication
|
---|
882 | * \param group EC_GROUP object
|
---|
883 | * \param ctx BN_CTX object (optional)
|
---|
884 | * \return 1 on success and 0 if an error occurred
|
---|
885 | */
|
---|
886 | OSSL_DEPRECATEDIN_3_0 int EC_GROUP_precompute_mult(EC_GROUP *group, BN_CTX *ctx);
|
---|
887 |
|
---|
888 | /** Reports whether a precomputation has been done
|
---|
889 | * \param group EC_GROUP object
|
---|
890 | * \return 1 if a pre-computation has been done and 0 otherwise
|
---|
891 | */
|
---|
892 | OSSL_DEPRECATEDIN_3_0 int EC_GROUP_have_precompute_mult(const EC_GROUP *group);
|
---|
893 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
894 |
|
---|
895 | /********************************************************************/
|
---|
896 | /* ASN1 stuff */
|
---|
897 | /********************************************************************/
|
---|
898 |
|
---|
899 | DECLARE_ASN1_ITEM(ECPKPARAMETERS)
|
---|
900 | DECLARE_ASN1_ALLOC_FUNCTIONS(ECPKPARAMETERS)
|
---|
901 | DECLARE_ASN1_ITEM(ECPARAMETERS)
|
---|
902 | DECLARE_ASN1_ALLOC_FUNCTIONS(ECPARAMETERS)
|
---|
903 |
|
---|
904 | /*
|
---|
905 | * EC_GROUP_get_basis_type() returns the NID of the basis type used to
|
---|
906 | * represent the field elements
|
---|
907 | */
|
---|
908 | int EC_GROUP_get_basis_type(const EC_GROUP *);
|
---|
909 | # ifndef OPENSSL_NO_EC2M
|
---|
910 | int EC_GROUP_get_trinomial_basis(const EC_GROUP *, unsigned int *k);
|
---|
911 | int EC_GROUP_get_pentanomial_basis(const EC_GROUP *, unsigned int *k1,
|
---|
912 | unsigned int *k2, unsigned int *k3);
|
---|
913 | # endif
|
---|
914 |
|
---|
915 | EC_GROUP *d2i_ECPKParameters(EC_GROUP **, const unsigned char **in, long len);
|
---|
916 | int i2d_ECPKParameters(const EC_GROUP *, unsigned char **out);
|
---|
917 |
|
---|
918 | # define d2i_ECPKParameters_bio(bp,x) \
|
---|
919 | ASN1_d2i_bio_of(EC_GROUP, NULL, d2i_ECPKParameters, bp, x)
|
---|
920 | # define i2d_ECPKParameters_bio(bp,x) \
|
---|
921 | ASN1_i2d_bio_of(EC_GROUP, i2d_ECPKParameters, bp, x)
|
---|
922 | # define d2i_ECPKParameters_fp(fp,x) \
|
---|
923 | (EC_GROUP *)ASN1_d2i_fp(NULL, (d2i_of_void *)d2i_ECPKParameters, (fp), \
|
---|
924 | (void **)(x))
|
---|
925 | # define i2d_ECPKParameters_fp(fp,x) \
|
---|
926 | ASN1_i2d_fp((i2d_of_void *)i2d_ECPKParameters, (fp), (void *)(x))
|
---|
927 |
|
---|
928 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
929 | OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print(BIO *bp, const EC_GROUP *x,
|
---|
930 | int off);
|
---|
931 | # ifndef OPENSSL_NO_STDIO
|
---|
932 | OSSL_DEPRECATEDIN_3_0 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x,
|
---|
933 | int off);
|
---|
934 | # endif
|
---|
935 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
936 |
|
---|
937 | /********************************************************************/
|
---|
938 | /* EC_KEY functions */
|
---|
939 | /********************************************************************/
|
---|
940 |
|
---|
941 | /* some values for the encoding_flag */
|
---|
942 | # define EC_PKEY_NO_PARAMETERS 0x001
|
---|
943 | # define EC_PKEY_NO_PUBKEY 0x002
|
---|
944 |
|
---|
945 | /* some values for the flags field */
|
---|
946 | # define EC_FLAG_SM2_RANGE 0x0004
|
---|
947 | # define EC_FLAG_COFACTOR_ECDH 0x1000
|
---|
948 | # define EC_FLAG_CHECK_NAMED_GROUP 0x2000
|
---|
949 | # define EC_FLAG_CHECK_NAMED_GROUP_NIST 0x4000
|
---|
950 | # define EC_FLAG_CHECK_NAMED_GROUP_MASK \
|
---|
951 | (EC_FLAG_CHECK_NAMED_GROUP | EC_FLAG_CHECK_NAMED_GROUP_NIST)
|
---|
952 |
|
---|
953 | /* Deprecated flags - it was using 0x01..0x02 */
|
---|
954 | # define EC_FLAG_NON_FIPS_ALLOW 0x0000
|
---|
955 | # define EC_FLAG_FIPS_CHECKED 0x0000
|
---|
956 |
|
---|
957 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
958 | /**
|
---|
959 | * Creates a new EC_KEY object.
|
---|
960 | * \param ctx The library context for to use for this EC_KEY. May be NULL in
|
---|
961 | * which case the default library context is used.
|
---|
962 | * \return EC_KEY object or NULL if an error occurred.
|
---|
963 | */
|
---|
964 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_ex(OSSL_LIB_CTX *ctx, const char *propq);
|
---|
965 |
|
---|
966 | /**
|
---|
967 | * Creates a new EC_KEY object. Same as calling EC_KEY_new_ex with a
|
---|
968 | * NULL library context
|
---|
969 | * \return EC_KEY object or NULL if an error occurred.
|
---|
970 | */
|
---|
971 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new(void);
|
---|
972 |
|
---|
973 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_get_flags(const EC_KEY *key);
|
---|
974 |
|
---|
975 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_flags(EC_KEY *key, int flags);
|
---|
976 |
|
---|
977 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_clear_flags(EC_KEY *key, int flags);
|
---|
978 |
|
---|
979 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_decoded_from_explicit_params(const EC_KEY *key);
|
---|
980 |
|
---|
981 | /**
|
---|
982 | * Creates a new EC_KEY object using a named curve as underlying
|
---|
983 | * EC_GROUP object.
|
---|
984 | * \param ctx The library context for to use for this EC_KEY. May be NULL in
|
---|
985 | * which case the default library context is used.
|
---|
986 | * \param propq Any property query string
|
---|
987 | * \param nid NID of the named curve.
|
---|
988 | * \return EC_KEY object or NULL if an error occurred.
|
---|
989 | */
|
---|
990 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name_ex(OSSL_LIB_CTX *ctx,
|
---|
991 | const char *propq,
|
---|
992 | int nid);
|
---|
993 |
|
---|
994 | /**
|
---|
995 | * Creates a new EC_KEY object using a named curve as underlying
|
---|
996 | * EC_GROUP object. Same as calling EC_KEY_new_by_curve_name_ex with a NULL
|
---|
997 | * library context and property query string.
|
---|
998 | * \param nid NID of the named curve.
|
---|
999 | * \return EC_KEY object or NULL if an error occurred.
|
---|
1000 | */
|
---|
1001 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_by_curve_name(int nid);
|
---|
1002 |
|
---|
1003 | /** Frees a EC_KEY object.
|
---|
1004 | * \param key EC_KEY object to be freed.
|
---|
1005 | */
|
---|
1006 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_free(EC_KEY *key);
|
---|
1007 |
|
---|
1008 | /** Copies a EC_KEY object.
|
---|
1009 | * \param dst destination EC_KEY object
|
---|
1010 | * \param src src EC_KEY object
|
---|
1011 | * \return dst or NULL if an error occurred.
|
---|
1012 | */
|
---|
1013 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_copy(EC_KEY *dst, const EC_KEY *src);
|
---|
1014 |
|
---|
1015 | /** Creates a new EC_KEY object and copies the content from src to it.
|
---|
1016 | * \param src the source EC_KEY object
|
---|
1017 | * \return newly created EC_KEY object or NULL if an error occurred.
|
---|
1018 | */
|
---|
1019 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_dup(const EC_KEY *src);
|
---|
1020 |
|
---|
1021 | /** Increases the internal reference count of a EC_KEY object.
|
---|
1022 | * \param key EC_KEY object
|
---|
1023 | * \return 1 on success and 0 if an error occurred.
|
---|
1024 | */
|
---|
1025 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_up_ref(EC_KEY *key);
|
---|
1026 |
|
---|
1027 | /** Returns the ENGINE object of a EC_KEY object
|
---|
1028 | * \param eckey EC_KEY object
|
---|
1029 | * \return the ENGINE object (possibly NULL).
|
---|
1030 | */
|
---|
1031 | OSSL_DEPRECATEDIN_3_0 ENGINE *EC_KEY_get0_engine(const EC_KEY *eckey);
|
---|
1032 |
|
---|
1033 | /** Returns the EC_GROUP object of a EC_KEY object
|
---|
1034 | * \param key EC_KEY object
|
---|
1035 | * \return the EC_GROUP object (possibly NULL).
|
---|
1036 | */
|
---|
1037 | OSSL_DEPRECATEDIN_3_0 const EC_GROUP *EC_KEY_get0_group(const EC_KEY *key);
|
---|
1038 |
|
---|
1039 | /** Sets the EC_GROUP of a EC_KEY object.
|
---|
1040 | * \param key EC_KEY object
|
---|
1041 | * \param group EC_GROUP to use in the EC_KEY object (note: the EC_KEY
|
---|
1042 | * object will use an own copy of the EC_GROUP).
|
---|
1043 | * \return 1 on success and 0 if an error occurred.
|
---|
1044 | */
|
---|
1045 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_group(EC_KEY *key, const EC_GROUP *group);
|
---|
1046 |
|
---|
1047 | /** Returns the private key of a EC_KEY object.
|
---|
1048 | * \param key EC_KEY object
|
---|
1049 | * \return a BIGNUM with the private key (possibly NULL).
|
---|
1050 | */
|
---|
1051 | OSSL_DEPRECATEDIN_3_0 const BIGNUM *EC_KEY_get0_private_key(const EC_KEY *key);
|
---|
1052 |
|
---|
1053 | /** Sets the private key of a EC_KEY object.
|
---|
1054 | * \param key EC_KEY object
|
---|
1055 | * \param prv BIGNUM with the private key (note: the EC_KEY object
|
---|
1056 | * will use an own copy of the BIGNUM).
|
---|
1057 | * \return 1 on success and 0 if an error occurred.
|
---|
1058 | */
|
---|
1059 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_private_key(EC_KEY *key, const BIGNUM *prv);
|
---|
1060 |
|
---|
1061 | /** Returns the public key of a EC_KEY object.
|
---|
1062 | * \param key the EC_KEY object
|
---|
1063 | * \return a EC_POINT object with the public key (possibly NULL)
|
---|
1064 | */
|
---|
1065 | OSSL_DEPRECATEDIN_3_0 const EC_POINT *EC_KEY_get0_public_key(const EC_KEY *key);
|
---|
1066 |
|
---|
1067 | /** Sets the public key of a EC_KEY object.
|
---|
1068 | * \param key EC_KEY object
|
---|
1069 | * \param pub EC_POINT object with the public key (note: the EC_KEY object
|
---|
1070 | * will use an own copy of the EC_POINT object).
|
---|
1071 | * \return 1 on success and 0 if an error occurred.
|
---|
1072 | */
|
---|
1073 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub);
|
---|
1074 |
|
---|
1075 | OSSL_DEPRECATEDIN_3_0 unsigned EC_KEY_get_enc_flags(const EC_KEY *key);
|
---|
1076 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_enc_flags(EC_KEY *eckey, unsigned int flags);
|
---|
1077 | OSSL_DEPRECATEDIN_3_0 point_conversion_form_t EC_KEY_get_conv_form(const EC_KEY *key);
|
---|
1078 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_conv_form(EC_KEY *eckey,
|
---|
1079 | point_conversion_form_t cform);
|
---|
1080 | # endif /*OPENSSL_NO_DEPRECATED_3_0 */
|
---|
1081 |
|
---|
1082 | # define EC_KEY_get_ex_new_index(l, p, newf, dupf, freef) \
|
---|
1083 | CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_EC_KEY, l, p, newf, dupf, freef)
|
---|
1084 |
|
---|
1085 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
1086 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_ex_data(EC_KEY *key, int idx, void *arg);
|
---|
1087 | OSSL_DEPRECATEDIN_3_0 void *EC_KEY_get_ex_data(const EC_KEY *key, int idx);
|
---|
1088 |
|
---|
1089 | /* wrapper functions for the underlying EC_GROUP object */
|
---|
1090 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_asn1_flag(EC_KEY *eckey, int asn1_flag);
|
---|
1091 |
|
---|
1092 | /** Creates a table of pre-computed multiples of the generator to
|
---|
1093 | * accelerate further EC_KEY operations.
|
---|
1094 | * \param key EC_KEY object
|
---|
1095 | * \param ctx BN_CTX object (optional)
|
---|
1096 | * \return 1 on success and 0 if an error occurred.
|
---|
1097 | */
|
---|
1098 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_precompute_mult(EC_KEY *key, BN_CTX *ctx);
|
---|
1099 |
|
---|
1100 | /** Creates a new ec private (and optional a new public) key.
|
---|
1101 | * \param key EC_KEY object
|
---|
1102 | * \return 1 on success and 0 if an error occurred.
|
---|
1103 | */
|
---|
1104 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_generate_key(EC_KEY *key);
|
---|
1105 |
|
---|
1106 | /** Verifies that a private and/or public key is valid.
|
---|
1107 | * \param key the EC_KEY object
|
---|
1108 | * \return 1 on success and 0 otherwise.
|
---|
1109 | */
|
---|
1110 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_check_key(const EC_KEY *key);
|
---|
1111 |
|
---|
1112 | /** Indicates if an EC_KEY can be used for signing.
|
---|
1113 | * \param eckey the EC_KEY object
|
---|
1114 | * \return 1 if can can sign and 0 otherwise.
|
---|
1115 | */
|
---|
1116 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_can_sign(const EC_KEY *eckey);
|
---|
1117 |
|
---|
1118 | /** Sets a public key from affine coordinates performing
|
---|
1119 | * necessary NIST PKV tests.
|
---|
1120 | * \param key the EC_KEY object
|
---|
1121 | * \param x public key x coordinate
|
---|
1122 | * \param y public key y coordinate
|
---|
1123 | * \return 1 on success and 0 otherwise.
|
---|
1124 | */
|
---|
1125 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_public_key_affine_coordinates(EC_KEY *key,
|
---|
1126 | BIGNUM *x,
|
---|
1127 | BIGNUM *y);
|
---|
1128 |
|
---|
1129 | /** Encodes an EC_KEY public key to an allocated octet string
|
---|
1130 | * \param key key to encode
|
---|
1131 | * \param form point conversion form
|
---|
1132 | * \param pbuf returns pointer to allocated buffer
|
---|
1133 | * \param ctx BN_CTX object (optional)
|
---|
1134 | * \return the length of the encoded octet string or 0 if an error occurred
|
---|
1135 | */
|
---|
1136 | OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_key2buf(const EC_KEY *key,
|
---|
1137 | point_conversion_form_t form,
|
---|
1138 | unsigned char **pbuf, BN_CTX *ctx);
|
---|
1139 |
|
---|
1140 | /** Decodes a EC_KEY public key from a octet string
|
---|
1141 | * \param key key to decode
|
---|
1142 | * \param buf memory buffer with the encoded ec point
|
---|
1143 | * \param len length of the encoded ec point
|
---|
1144 | * \param ctx BN_CTX object (optional)
|
---|
1145 | * \return 1 on success and 0 if an error occurred
|
---|
1146 | */
|
---|
1147 |
|
---|
1148 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2key(EC_KEY *key, const unsigned char *buf,
|
---|
1149 | size_t len, BN_CTX *ctx);
|
---|
1150 |
|
---|
1151 | /** Decodes an EC_KEY private key from an octet string
|
---|
1152 | * \param key key to decode
|
---|
1153 | * \param buf memory buffer with the encoded private key
|
---|
1154 | * \param len length of the encoded key
|
---|
1155 | * \return 1 on success and 0 if an error occurred
|
---|
1156 | */
|
---|
1157 |
|
---|
1158 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_oct2priv(EC_KEY *key, const unsigned char *buf,
|
---|
1159 | size_t len);
|
---|
1160 |
|
---|
1161 | /** Encodes a EC_KEY private key to an octet string
|
---|
1162 | * \param key key to encode
|
---|
1163 | * \param buf memory buffer for the result. If NULL the function returns
|
---|
1164 | * required buffer size.
|
---|
1165 | * \param len length of the memory buffer
|
---|
1166 | * \return the length of the encoded octet string or 0 if an error occurred
|
---|
1167 | */
|
---|
1168 |
|
---|
1169 | OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2oct(const EC_KEY *key,
|
---|
1170 | unsigned char *buf, size_t len);
|
---|
1171 |
|
---|
1172 | /** Encodes an EC_KEY private key to an allocated octet string
|
---|
1173 | * \param eckey key to encode
|
---|
1174 | * \param pbuf returns pointer to allocated buffer
|
---|
1175 | * \return the length of the encoded octet string or 0 if an error occurred
|
---|
1176 | */
|
---|
1177 | OSSL_DEPRECATEDIN_3_0 size_t EC_KEY_priv2buf(const EC_KEY *eckey,
|
---|
1178 | unsigned char **pbuf);
|
---|
1179 |
|
---|
1180 | /********************************************************************/
|
---|
1181 | /* de- and encoding functions for SEC1 ECPrivateKey */
|
---|
1182 | /********************************************************************/
|
---|
1183 |
|
---|
1184 | /** Decodes a private key from a memory buffer.
|
---|
1185 | * \param key a pointer to a EC_KEY object which should be used (or NULL)
|
---|
1186 | * \param in pointer to memory with the DER encoded private key
|
---|
1187 | * \param len length of the DER encoded private key
|
---|
1188 | * \return the decoded private key or NULL if an error occurred.
|
---|
1189 | */
|
---|
1190 | OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECPrivateKey(EC_KEY **key,
|
---|
1191 | const unsigned char **in,
|
---|
1192 | long len);
|
---|
1193 |
|
---|
1194 | /** Encodes a private key object and stores the result in a buffer.
|
---|
1195 | * \param key the EC_KEY object to encode
|
---|
1196 | * \param out the buffer for the result (if NULL the function returns number
|
---|
1197 | * of bytes needed).
|
---|
1198 | * \return 1 on success and 0 if an error occurred.
|
---|
1199 | */
|
---|
1200 | OSSL_DEPRECATEDIN_3_0 int i2d_ECPrivateKey(const EC_KEY *key,
|
---|
1201 | unsigned char **out);
|
---|
1202 |
|
---|
1203 | /********************************************************************/
|
---|
1204 | /* de- and encoding functions for EC parameters */
|
---|
1205 | /********************************************************************/
|
---|
1206 |
|
---|
1207 | /** Decodes ec parameter from a memory buffer.
|
---|
1208 | * \param key a pointer to a EC_KEY object which should be used (or NULL)
|
---|
1209 | * \param in pointer to memory with the DER encoded ec parameters
|
---|
1210 | * \param len length of the DER encoded ec parameters
|
---|
1211 | * \return a EC_KEY object with the decoded parameters or NULL if an error
|
---|
1212 | * occurred.
|
---|
1213 | */
|
---|
1214 | OSSL_DEPRECATEDIN_3_0 EC_KEY *d2i_ECParameters(EC_KEY **key,
|
---|
1215 | const unsigned char **in,
|
---|
1216 | long len);
|
---|
1217 |
|
---|
1218 | /** Encodes ec parameter and stores the result in a buffer.
|
---|
1219 | * \param key the EC_KEY object with ec parameters to encode
|
---|
1220 | * \param out the buffer for the result (if NULL the function returns number
|
---|
1221 | * of bytes needed).
|
---|
1222 | * \return 1 on success and 0 if an error occurred.
|
---|
1223 | */
|
---|
1224 | OSSL_DEPRECATEDIN_3_0 int i2d_ECParameters(const EC_KEY *key,
|
---|
1225 | unsigned char **out);
|
---|
1226 |
|
---|
1227 | /********************************************************************/
|
---|
1228 | /* de- and encoding functions for EC public key */
|
---|
1229 | /* (octet string, not DER -- hence 'o2i' and 'i2o') */
|
---|
1230 | /********************************************************************/
|
---|
1231 |
|
---|
1232 | /** Decodes an ec public key from a octet string.
|
---|
1233 | * \param key a pointer to a EC_KEY object which should be used
|
---|
1234 | * \param in memory buffer with the encoded public key
|
---|
1235 | * \param len length of the encoded public key
|
---|
1236 | * \return EC_KEY object with decoded public key or NULL if an error
|
---|
1237 | * occurred.
|
---|
1238 | */
|
---|
1239 | OSSL_DEPRECATEDIN_3_0 EC_KEY *o2i_ECPublicKey(EC_KEY **key,
|
---|
1240 | const unsigned char **in, long len);
|
---|
1241 |
|
---|
1242 | /** Encodes an ec public key in an octet string.
|
---|
1243 | * \param key the EC_KEY object with the public key
|
---|
1244 | * \param out the buffer for the result (if NULL the function returns number
|
---|
1245 | * of bytes needed).
|
---|
1246 | * \return 1 on success and 0 if an error occurred
|
---|
1247 | */
|
---|
1248 | OSSL_DEPRECATEDIN_3_0 int i2o_ECPublicKey(const EC_KEY *key, unsigned char **out);
|
---|
1249 |
|
---|
1250 | /** Prints out the ec parameters on human readable form.
|
---|
1251 | * \param bp BIO object to which the information is printed
|
---|
1252 | * \param key EC_KEY object
|
---|
1253 | * \return 1 on success and 0 if an error occurred
|
---|
1254 | */
|
---|
1255 | OSSL_DEPRECATEDIN_3_0 int ECParameters_print(BIO *bp, const EC_KEY *key);
|
---|
1256 |
|
---|
1257 | /** Prints out the contents of a EC_KEY object
|
---|
1258 | * \param bp BIO object to which the information is printed
|
---|
1259 | * \param key EC_KEY object
|
---|
1260 | * \param off line offset
|
---|
1261 | * \return 1 on success and 0 if an error occurred
|
---|
1262 | */
|
---|
1263 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_print(BIO *bp, const EC_KEY *key, int off);
|
---|
1264 |
|
---|
1265 | # ifndef OPENSSL_NO_STDIO
|
---|
1266 | /** Prints out the ec parameters on human readable form.
|
---|
1267 | * \param fp file descriptor to which the information is printed
|
---|
1268 | * \param key EC_KEY object
|
---|
1269 | * \return 1 on success and 0 if an error occurred
|
---|
1270 | */
|
---|
1271 | OSSL_DEPRECATEDIN_3_0 int ECParameters_print_fp(FILE *fp, const EC_KEY *key);
|
---|
1272 |
|
---|
1273 | /** Prints out the contents of a EC_KEY object
|
---|
1274 | * \param fp file descriptor to which the information is printed
|
---|
1275 | * \param key EC_KEY object
|
---|
1276 | * \param off line offset
|
---|
1277 | * \return 1 on success and 0 if an error occurred
|
---|
1278 | */
|
---|
1279 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_print_fp(FILE *fp, const EC_KEY *key, int off);
|
---|
1280 | # endif /* OPENSSL_NO_STDIO */
|
---|
1281 |
|
---|
1282 | OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_OpenSSL(void);
|
---|
1283 | OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_default_method(void);
|
---|
1284 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_set_default_method(const EC_KEY_METHOD *meth);
|
---|
1285 | OSSL_DEPRECATEDIN_3_0 const EC_KEY_METHOD *EC_KEY_get_method(const EC_KEY *key);
|
---|
1286 | OSSL_DEPRECATEDIN_3_0 int EC_KEY_set_method(EC_KEY *key, const EC_KEY_METHOD *meth);
|
---|
1287 | OSSL_DEPRECATEDIN_3_0 EC_KEY *EC_KEY_new_method(ENGINE *engine);
|
---|
1288 |
|
---|
1289 | /** The old name for ecdh_KDF_X9_63
|
---|
1290 | * The ECDH KDF specification has been mistakingly attributed to ANSI X9.62,
|
---|
1291 | * it is actually specified in ANSI X9.63.
|
---|
1292 | * This identifier is retained for backwards compatibility
|
---|
1293 | */
|
---|
1294 | OSSL_DEPRECATEDIN_3_0 int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,
|
---|
1295 | const unsigned char *Z, size_t Zlen,
|
---|
1296 | const unsigned char *sinfo,
|
---|
1297 | size_t sinfolen, const EVP_MD *md);
|
---|
1298 |
|
---|
1299 | OSSL_DEPRECATEDIN_3_0 int ECDH_compute_key(void *out, size_t outlen,
|
---|
1300 | const EC_POINT *pub_key,
|
---|
1301 | const EC_KEY *ecdh,
|
---|
1302 | void *(*KDF)(const void *in,
|
---|
1303 | size_t inlen, void *out,
|
---|
1304 | size_t *outlen));
|
---|
1305 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
1306 |
|
---|
1307 | typedef struct ECDSA_SIG_st ECDSA_SIG;
|
---|
1308 |
|
---|
1309 | /** Allocates and initialize a ECDSA_SIG structure
|
---|
1310 | * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
|
---|
1311 | */
|
---|
1312 | ECDSA_SIG *ECDSA_SIG_new(void);
|
---|
1313 |
|
---|
1314 | /** frees a ECDSA_SIG structure
|
---|
1315 | * \param sig pointer to the ECDSA_SIG structure
|
---|
1316 | */
|
---|
1317 | void ECDSA_SIG_free(ECDSA_SIG *sig);
|
---|
1318 |
|
---|
1319 | /** i2d_ECDSA_SIG encodes content of ECDSA_SIG (note: this function modifies *pp
|
---|
1320 | * (*pp += length of the DER encoded signature)).
|
---|
1321 | * \param sig pointer to the ECDSA_SIG object
|
---|
1322 | * \param pp pointer to a unsigned char pointer for the output or NULL
|
---|
1323 | * \return the length of the DER encoded ECDSA_SIG object or a negative value
|
---|
1324 | * on error
|
---|
1325 | */
|
---|
1326 | DECLARE_ASN1_ENCODE_FUNCTIONS_only(ECDSA_SIG, ECDSA_SIG)
|
---|
1327 |
|
---|
1328 | /** d2i_ECDSA_SIG decodes an ECDSA signature (note: this function modifies *pp
|
---|
1329 | * (*pp += len)).
|
---|
1330 | * \param sig pointer to ECDSA_SIG pointer (may be NULL)
|
---|
1331 | * \param pp memory buffer with the DER encoded signature
|
---|
1332 | * \param len length of the buffer
|
---|
1333 | * \return pointer to the decoded ECDSA_SIG structure (or NULL)
|
---|
1334 | */
|
---|
1335 |
|
---|
1336 | /** Accessor for r and s fields of ECDSA_SIG
|
---|
1337 | * \param sig pointer to ECDSA_SIG structure
|
---|
1338 | * \param pr pointer to BIGNUM pointer for r (may be NULL)
|
---|
1339 | * \param ps pointer to BIGNUM pointer for s (may be NULL)
|
---|
1340 | */
|
---|
1341 | void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps);
|
---|
1342 |
|
---|
1343 | /** Accessor for r field of ECDSA_SIG
|
---|
1344 | * \param sig pointer to ECDSA_SIG structure
|
---|
1345 | */
|
---|
1346 | const BIGNUM *ECDSA_SIG_get0_r(const ECDSA_SIG *sig);
|
---|
1347 |
|
---|
1348 | /** Accessor for s field of ECDSA_SIG
|
---|
1349 | * \param sig pointer to ECDSA_SIG structure
|
---|
1350 | */
|
---|
1351 | const BIGNUM *ECDSA_SIG_get0_s(const ECDSA_SIG *sig);
|
---|
1352 |
|
---|
1353 | /** Setter for r and s fields of ECDSA_SIG
|
---|
1354 | * \param sig pointer to ECDSA_SIG structure
|
---|
1355 | * \param r pointer to BIGNUM for r
|
---|
1356 | * \param s pointer to BIGNUM for s
|
---|
1357 | */
|
---|
1358 | int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s);
|
---|
1359 |
|
---|
1360 | # ifndef OPENSSL_NO_DEPRECATED_3_0
|
---|
1361 | /** Computes the ECDSA signature of the given hash value using
|
---|
1362 | * the supplied private key and returns the created signature.
|
---|
1363 | * \param dgst pointer to the hash value
|
---|
1364 | * \param dgst_len length of the hash value
|
---|
1365 | * \param eckey EC_KEY object containing a private EC key
|
---|
1366 | * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
|
---|
1367 | */
|
---|
1368 | OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign(const unsigned char *dgst,
|
---|
1369 | int dgst_len, EC_KEY *eckey);
|
---|
1370 |
|
---|
1371 | /** Computes ECDSA signature of a given hash value using the supplied
|
---|
1372 | * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
|
---|
1373 | * \param dgst pointer to the hash value to sign
|
---|
1374 | * \param dgstlen length of the hash value
|
---|
1375 | * \param kinv BIGNUM with a pre-computed inverse k (optional)
|
---|
1376 | * \param rp BIGNUM with a pre-computed rp value (optional),
|
---|
1377 | * see ECDSA_sign_setup
|
---|
1378 | * \param eckey EC_KEY object containing a private EC key
|
---|
1379 | * \return pointer to a ECDSA_SIG structure or NULL if an error occurred
|
---|
1380 | */
|
---|
1381 | OSSL_DEPRECATEDIN_3_0 ECDSA_SIG *ECDSA_do_sign_ex(const unsigned char *dgst,
|
---|
1382 | int dgstlen, const BIGNUM *kinv,
|
---|
1383 | const BIGNUM *rp, EC_KEY *eckey);
|
---|
1384 |
|
---|
1385 | /** Verifies that the supplied signature is a valid ECDSA
|
---|
1386 | * signature of the supplied hash value using the supplied public key.
|
---|
1387 | * \param dgst pointer to the hash value
|
---|
1388 | * \param dgst_len length of the hash value
|
---|
1389 | * \param sig ECDSA_SIG structure
|
---|
1390 | * \param eckey EC_KEY object containing a public EC key
|
---|
1391 | * \return 1 if the signature is valid, 0 if the signature is invalid
|
---|
1392 | * and -1 on error
|
---|
1393 | */
|
---|
1394 | OSSL_DEPRECATEDIN_3_0 int ECDSA_do_verify(const unsigned char *dgst, int dgst_len,
|
---|
1395 | const ECDSA_SIG *sig, EC_KEY *eckey);
|
---|
1396 |
|
---|
1397 | /** Precompute parts of the signing operation
|
---|
1398 | * \param eckey EC_KEY object containing a private EC key
|
---|
1399 | * \param ctx BN_CTX object (optional)
|
---|
1400 | * \param kinv BIGNUM pointer for the inverse of k
|
---|
1401 | * \param rp BIGNUM pointer for x coordinate of k * generator
|
---|
1402 | * \return 1 on success and 0 otherwise
|
---|
1403 | */
|
---|
1404 | OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_setup(EC_KEY *eckey, BN_CTX *ctx,
|
---|
1405 | BIGNUM **kinv, BIGNUM **rp);
|
---|
1406 |
|
---|
1407 | /** Computes ECDSA signature of a given hash value using the supplied
|
---|
1408 | * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
|
---|
1409 | * \param type this parameter is ignored
|
---|
1410 | * \param dgst pointer to the hash value to sign
|
---|
1411 | * \param dgstlen length of the hash value
|
---|
1412 | * \param sig memory for the DER encoded created signature
|
---|
1413 | * \param siglen pointer to the length of the returned signature
|
---|
1414 | * \param eckey EC_KEY object containing a private EC key
|
---|
1415 | * \return 1 on success and 0 otherwise
|
---|
1416 | */
|
---|
1417 | OSSL_DEPRECATEDIN_3_0 int ECDSA_sign(int type, const unsigned char *dgst,
|
---|
1418 | int dgstlen, unsigned char *sig,
|
---|
1419 | unsigned int *siglen, EC_KEY *eckey);
|
---|
1420 |
|
---|
1421 | /** Computes ECDSA signature of a given hash value using the supplied
|
---|
1422 | * private key (note: sig must point to ECDSA_size(eckey) bytes of memory).
|
---|
1423 | * \param type this parameter is ignored
|
---|
1424 | * \param dgst pointer to the hash value to sign
|
---|
1425 | * \param dgstlen length of the hash value
|
---|
1426 | * \param sig buffer to hold the DER encoded signature
|
---|
1427 | * \param siglen pointer to the length of the returned signature
|
---|
1428 | * \param kinv BIGNUM with a pre-computed inverse k (optional)
|
---|
1429 | * \param rp BIGNUM with a pre-computed rp value (optional),
|
---|
1430 | * see ECDSA_sign_setup
|
---|
1431 | * \param eckey EC_KEY object containing a private EC key
|
---|
1432 | * \return 1 on success and 0 otherwise
|
---|
1433 | */
|
---|
1434 | OSSL_DEPRECATEDIN_3_0 int ECDSA_sign_ex(int type, const unsigned char *dgst,
|
---|
1435 | int dgstlen, unsigned char *sig,
|
---|
1436 | unsigned int *siglen, const BIGNUM *kinv,
|
---|
1437 | const BIGNUM *rp, EC_KEY *eckey);
|
---|
1438 |
|
---|
1439 | /** Verifies that the given signature is valid ECDSA signature
|
---|
1440 | * of the supplied hash value using the specified public key.
|
---|
1441 | * \param type this parameter is ignored
|
---|
1442 | * \param dgst pointer to the hash value
|
---|
1443 | * \param dgstlen length of the hash value
|
---|
1444 | * \param sig pointer to the DER encoded signature
|
---|
1445 | * \param siglen length of the DER encoded signature
|
---|
1446 | * \param eckey EC_KEY object containing a public EC key
|
---|
1447 | * \return 1 if the signature is valid, 0 if the signature is invalid
|
---|
1448 | * and -1 on error
|
---|
1449 | */
|
---|
1450 | OSSL_DEPRECATEDIN_3_0 int ECDSA_verify(int type, const unsigned char *dgst,
|
---|
1451 | int dgstlen, const unsigned char *sig,
|
---|
1452 | int siglen, EC_KEY *eckey);
|
---|
1453 |
|
---|
1454 | /** Returns the maximum length of the DER encoded signature
|
---|
1455 | * \param eckey EC_KEY object
|
---|
1456 | * \return numbers of bytes required for the DER encoded signature
|
---|
1457 | */
|
---|
1458 | OSSL_DEPRECATEDIN_3_0 int ECDSA_size(const EC_KEY *eckey);
|
---|
1459 |
|
---|
1460 | /********************************************************************/
|
---|
1461 | /* EC_KEY_METHOD constructors, destructors, writers and accessors */
|
---|
1462 | /********************************************************************/
|
---|
1463 |
|
---|
1464 | OSSL_DEPRECATEDIN_3_0 EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth);
|
---|
1465 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_free(EC_KEY_METHOD *meth);
|
---|
1466 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_init
|
---|
1467 | (EC_KEY_METHOD *meth,
|
---|
1468 | int (*init)(EC_KEY *key),
|
---|
1469 | void (*finish)(EC_KEY *key),
|
---|
1470 | int (*copy)(EC_KEY *dest, const EC_KEY *src),
|
---|
1471 | int (*set_group)(EC_KEY *key, const EC_GROUP *grp),
|
---|
1472 | int (*set_private)(EC_KEY *key, const BIGNUM *priv_key),
|
---|
1473 | int (*set_public)(EC_KEY *key, const EC_POINT *pub_key));
|
---|
1474 |
|
---|
1475 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth,
|
---|
1476 | int (*keygen)(EC_KEY *key));
|
---|
1477 |
|
---|
1478 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_compute_key
|
---|
1479 | (EC_KEY_METHOD *meth,
|
---|
1480 | int (*ckey)(unsigned char **psec, size_t *pseclen,
|
---|
1481 | const EC_POINT *pub_key, const EC_KEY *ecdh));
|
---|
1482 |
|
---|
1483 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_sign
|
---|
1484 | (EC_KEY_METHOD *meth,
|
---|
1485 | int (*sign)(int type, const unsigned char *dgst,
|
---|
1486 | int dlen, unsigned char *sig,
|
---|
1487 | unsigned int *siglen,
|
---|
1488 | const BIGNUM *kinv, const BIGNUM *r,
|
---|
1489 | EC_KEY *eckey),
|
---|
1490 | int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
|
---|
1491 | BIGNUM **kinvp, BIGNUM **rp),
|
---|
1492 | ECDSA_SIG *(*sign_sig)(const unsigned char *dgst,
|
---|
1493 | int dgst_len,
|
---|
1494 | const BIGNUM *in_kinv,
|
---|
1495 | const BIGNUM *in_r,
|
---|
1496 | EC_KEY *eckey));
|
---|
1497 |
|
---|
1498 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_set_verify
|
---|
1499 | (EC_KEY_METHOD *meth,
|
---|
1500 | int (*verify)(int type, const unsigned
|
---|
1501 | char *dgst, int dgst_len,
|
---|
1502 | const unsigned char *sigbuf,
|
---|
1503 | int sig_len, EC_KEY *eckey),
|
---|
1504 | int (*verify_sig)(const unsigned char *dgst,
|
---|
1505 | int dgst_len, const ECDSA_SIG *sig,
|
---|
1506 | EC_KEY *eckey));
|
---|
1507 |
|
---|
1508 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_init
|
---|
1509 | (const EC_KEY_METHOD *meth,
|
---|
1510 | int (**pinit)(EC_KEY *key),
|
---|
1511 | void (**pfinish)(EC_KEY *key),
|
---|
1512 | int (**pcopy)(EC_KEY *dest, const EC_KEY *src),
|
---|
1513 | int (**pset_group)(EC_KEY *key, const EC_GROUP *grp),
|
---|
1514 | int (**pset_private)(EC_KEY *key, const BIGNUM *priv_key),
|
---|
1515 | int (**pset_public)(EC_KEY *key, const EC_POINT *pub_key));
|
---|
1516 |
|
---|
1517 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_keygen
|
---|
1518 | (const EC_KEY_METHOD *meth, int (**pkeygen)(EC_KEY *key));
|
---|
1519 |
|
---|
1520 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_compute_key
|
---|
1521 | (const EC_KEY_METHOD *meth,
|
---|
1522 | int (**pck)(unsigned char **psec,
|
---|
1523 | size_t *pseclen,
|
---|
1524 | const EC_POINT *pub_key,
|
---|
1525 | const EC_KEY *ecdh));
|
---|
1526 |
|
---|
1527 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_sign
|
---|
1528 | (const EC_KEY_METHOD *meth,
|
---|
1529 | int (**psign)(int type, const unsigned char *dgst,
|
---|
1530 | int dlen, unsigned char *sig,
|
---|
1531 | unsigned int *siglen,
|
---|
1532 | const BIGNUM *kinv, const BIGNUM *r,
|
---|
1533 | EC_KEY *eckey),
|
---|
1534 | int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
|
---|
1535 | BIGNUM **kinvp, BIGNUM **rp),
|
---|
1536 | ECDSA_SIG *(**psign_sig)(const unsigned char *dgst,
|
---|
1537 | int dgst_len,
|
---|
1538 | const BIGNUM *in_kinv,
|
---|
1539 | const BIGNUM *in_r,
|
---|
1540 | EC_KEY *eckey));
|
---|
1541 |
|
---|
1542 | OSSL_DEPRECATEDIN_3_0 void EC_KEY_METHOD_get_verify
|
---|
1543 | (const EC_KEY_METHOD *meth,
|
---|
1544 | int (**pverify)(int type, const unsigned
|
---|
1545 | char *dgst, int dgst_len,
|
---|
1546 | const unsigned char *sigbuf,
|
---|
1547 | int sig_len, EC_KEY *eckey),
|
---|
1548 | int (**pverify_sig)(const unsigned char *dgst,
|
---|
1549 | int dgst_len,
|
---|
1550 | const ECDSA_SIG *sig,
|
---|
1551 | EC_KEY *eckey));
|
---|
1552 | # endif /* OPENSSL_NO_DEPRECATED_3_0 */
|
---|
1553 |
|
---|
1554 | # define EVP_EC_gen(curve) \
|
---|
1555 | EVP_PKEY_Q_keygen(NULL, NULL, "EC", (char *)(strstr(curve, "")))
|
---|
1556 | /* strstr is used to enable type checking for the variadic string arg */
|
---|
1557 | # define ECParameters_dup(x) ASN1_dup_of(EC_KEY, i2d_ECParameters, \
|
---|
1558 | d2i_ECParameters, x)
|
---|
1559 |
|
---|
1560 | # ifndef __cplusplus
|
---|
1561 | # if defined(__SUNPRO_C)
|
---|
1562 | # if __SUNPRO_C >= 0x520
|
---|
1563 | # pragma error_messages (default,E_ARRAY_OF_INCOMPLETE_NONAME,E_ARRAY_OF_INCOMPLETE)
|
---|
1564 | # endif
|
---|
1565 | # endif
|
---|
1566 | # endif
|
---|
1567 |
|
---|
1568 | # endif
|
---|
1569 | # ifdef __cplusplus
|
---|
1570 | }
|
---|
1571 | # endif
|
---|
1572 | #endif
|
---|