1 /* $OpenBSD: sm2.h,v 1.2 2022/07/12 14:42:50 kn Exp $ */ 2 /* 3 * Copyright (c) 2017, 2019 Ribose Inc 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 #ifndef HEADER_SM2_H 19 #define HEADER_SM2_H 20 21 #include <openssl/opensslconf.h> 22 23 #include <openssl/ec.h> 24 #include <openssl/ecdsa.h> 25 26 #ifdef OPENSSL_NO_SM2 27 #error SM2 is disabled. 28 #endif 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 /* 35 * SM2 signature generation. 36 */ 37 int SM2_sign(const unsigned char *dgst, int dgstlen, unsigned char *sig, 38 unsigned int *siglen, EC_KEY *eckey); 39 40 /* 41 * SM2 signature verification. Assumes input is an SM3 digest 42 */ 43 int SM2_verify(const unsigned char *dgst, int dgstlen, const unsigned char *sig, 44 int siglen, EC_KEY *eckey); 45 46 /* 47 * SM2 encryption 48 */ 49 int SM2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len, 50 size_t *c_size); 51 52 int SM2_plaintext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len, 53 size_t *pl_size); 54 55 int SM2_encrypt(const EC_KEY *key, const EVP_MD *digest, const uint8_t *msg, 56 size_t msg_len, uint8_t *ciphertext_buf, size_t *ciphertext_len); 57 58 int SM2_decrypt(const EC_KEY *key, const EVP_MD *digest, 59 const uint8_t *ciphertext, size_t ciphertext_len, uint8_t *ptext_buf, 60 size_t *ptext_len); 61 62 void ERR_load_SM2_strings(void); 63 64 /* Error codes for the SM2 functions. */ 65 66 /* Function codes. */ 67 # define SM2_F_PKEY_SM2_CTRL 274 68 # define SM2_F_PKEY_SM2_CTRL_STR 275 69 # define SM2_F_PKEY_SM2_KEYGEN 276 70 # define SM2_F_PKEY_SM2_PARAMGEN 277 71 # define SM2_F_PKEY_SM2_SIGN 278 72 # define SM2_F_PKEY_SM2_VERIFY 279 73 # define SM2_F_PKEY_SM2_ENCRYPT 280 74 # define SM2_F_PKEY_SM2_DECRYPT 281 75 76 /* Reason codes. */ 77 # define SM2_R_ASN1_ERROR 115 78 # define SM2_R_ASN5_ERROR 1150 79 # define SM2_R_BAD_SIGNATURE 156 80 # define SM2_R_BIGNUM_OUT_OF_RANGE 144 81 # define SM2_R_BUFFER_TOO_SMALL 100 82 # define SM2_R_COORDINATES_OUT_OF_RANGE 146 83 # define SM2_R_CURVE_DOES_NOT_SUPPORT_ECDH 160 84 # define SM2_R_CURVE_DOES_NOT_SUPPORT_SIGNING 159 85 # define SM2_R_D2I_ECPKPARAMETERS_FAILURE 117 86 # define SM2_R_DECODE_ERROR 142 87 # define SM2_R_DIGEST_FAILURE 163 88 # define SM2_R_DISCRIMINANT_IS_ZERO 118 89 # define SM2_R_EC_GROUP_NEW_BY_NAME_FAILURE 119 90 # define SM2_R_FIELD_TOO_LARGE 143 91 # define SM2_R_GF2M_NOT_SUPPORTED 147 92 # define SM2_R_GROUP2PKPARAMETERS_FAILURE 120 93 # define SM2_R_I2D_ECPKPARAMETERS_FAILURE 121 94 # define SM2_R_INCOMPATIBLE_OBJECTS 101 95 # define SM2_R_INVALID_ARGUMENT 112 96 # define SM2_R_INVALID_COMPRESSED_POINT 110 97 # define SM2_R_INVALID_COMPRESSION_BIT 109 98 # define SM2_R_INVALID_CURVE 141 99 # define SM2_R_INVALID_DIGEST 151 100 # define SM2_R_INVALID_DIGEST_TYPE 138 101 # define SM2_R_INVALID_ENCODING 102 102 # define SM2_R_INVALID_FIELD 103 103 # define SM2_R_INVALID_FORM 104 104 # define SM2_R_INVALID_GROUP_ORDER 122 105 # define SM2_R_INVALID_KEY 116 106 # define SM2_R_INVALID_OUTPUT_LENGTH 161 107 # define SM2_R_INVALID_PEER_KEY 133 108 # define SM2_R_INVALID_PENTANOMIAL_BASIS 132 109 # define SM2_R_INVALID_PRIVATE_KEY 123 110 # define SM2_R_INVALID_TRINOMIAL_BASIS 137 111 # define SM2_R_KDF_FAILURE 162 112 # define SM2_R_KDF_PARAMETER_ERROR 148 113 # define SM2_R_KEYS_NOT_SET 140 114 # define SM2_R_MISSING_PARAMETERS 124 115 # define SM2_R_MISSING_PRIVATE_KEY 125 116 # define SM2_R_NEED_NEW_SETUP_VALUES 157 117 # define SM2_R_NOT_A_NIST_PRIME 135 118 # define SM2_R_NOT_IMPLEMENTED 126 119 # define SM2_R_NOT_INITIALIZED 111 120 # define SM2_R_NO_PARAMETERS_SET 139 121 # define SM2_R_NO_PRIVATE_VALUE 154 122 # define SM2_R_OPERATION_NOT_SUPPORTED 152 123 # define SM2_R_PASSED_NULL_PARAMETER 134 124 # define SM2_R_PEER_KEY_ERROR 149 125 # define SM2_R_PKPARAMETERS2GROUP_FAILURE 127 126 # define SM2_R_POINT_ARITHMETIC_FAILURE 155 127 # define SM2_R_POINT_AT_INFINITY 106 128 # define SM2_R_POINT_IS_NOT_ON_CURVE 107 129 # define SM2_R_RANDOM_NUMBER_GENERATION_FAILED 158 130 # define SM2_R_SHARED_INFO_ERROR 150 131 # define SM2_R_SLOT_FULL 108 132 # define SM2_R_UNDEFINED_GENERATOR 113 133 # define SM2_R_UNDEFINED_ORDER 128 134 # define SM2_R_UNKNOWN_GROUP 129 135 # define SM2_R_UNKNOWN_ORDER 114 136 # define SM2_R_UNSUPPORTED_FIELD 131 137 # define SM2_R_WRONG_CURVE_PARAMETERS 145 138 # define SM2_R_WRONG_ORDER 130 139 140 #ifdef __cplusplus 141 } 142 #endif 143 #endif 144