1 /* $OpenBSD: sm2.h,v 1.3 2023/07/28 15:50:33 tb 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 25 #ifdef OPENSSL_NO_SM2 26 #error SM2 is disabled. 27 #endif 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 /* 34 * SM2 signature generation. 35 */ 36 int SM2_sign(const unsigned char *dgst, int dgstlen, unsigned char *sig, 37 unsigned int *siglen, EC_KEY *eckey); 38 39 /* 40 * SM2 signature verification. Assumes input is an SM3 digest 41 */ 42 int SM2_verify(const unsigned char *dgst, int dgstlen, const unsigned char *sig, 43 int siglen, EC_KEY *eckey); 44 45 /* 46 * SM2 encryption 47 */ 48 int SM2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len, 49 size_t *c_size); 50 51 int SM2_plaintext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len, 52 size_t *pl_size); 53 54 int SM2_encrypt(const EC_KEY *key, const EVP_MD *digest, const uint8_t *msg, 55 size_t msg_len, uint8_t *ciphertext_buf, size_t *ciphertext_len); 56 57 int SM2_decrypt(const EC_KEY *key, const EVP_MD *digest, 58 const uint8_t *ciphertext, size_t ciphertext_len, uint8_t *ptext_buf, 59 size_t *ptext_len); 60 61 void ERR_load_SM2_strings(void); 62 63 /* Error codes for the SM2 functions. */ 64 65 /* Function codes. */ 66 # define SM2_F_PKEY_SM2_CTRL 274 67 # define SM2_F_PKEY_SM2_CTRL_STR 275 68 # define SM2_F_PKEY_SM2_KEYGEN 276 69 # define SM2_F_PKEY_SM2_PARAMGEN 277 70 # define SM2_F_PKEY_SM2_SIGN 278 71 # define SM2_F_PKEY_SM2_VERIFY 279 72 # define SM2_F_PKEY_SM2_ENCRYPT 280 73 # define SM2_F_PKEY_SM2_DECRYPT 281 74 75 /* Reason codes. */ 76 # define SM2_R_ASN1_ERROR 115 77 # define SM2_R_ASN5_ERROR 1150 78 # define SM2_R_BAD_SIGNATURE 156 79 # define SM2_R_BIGNUM_OUT_OF_RANGE 144 80 # define SM2_R_BUFFER_TOO_SMALL 100 81 # define SM2_R_COORDINATES_OUT_OF_RANGE 146 82 # define SM2_R_CURVE_DOES_NOT_SUPPORT_ECDH 160 83 # define SM2_R_CURVE_DOES_NOT_SUPPORT_SIGNING 159 84 # define SM2_R_D2I_ECPKPARAMETERS_FAILURE 117 85 # define SM2_R_DECODE_ERROR 142 86 # define SM2_R_DIGEST_FAILURE 163 87 # define SM2_R_DISCRIMINANT_IS_ZERO 118 88 # define SM2_R_EC_GROUP_NEW_BY_NAME_FAILURE 119 89 # define SM2_R_FIELD_TOO_LARGE 143 90 # define SM2_R_GF2M_NOT_SUPPORTED 147 91 # define SM2_R_GROUP2PKPARAMETERS_FAILURE 120 92 # define SM2_R_I2D_ECPKPARAMETERS_FAILURE 121 93 # define SM2_R_INCOMPATIBLE_OBJECTS 101 94 # define SM2_R_INVALID_ARGUMENT 112 95 # define SM2_R_INVALID_COMPRESSED_POINT 110 96 # define SM2_R_INVALID_COMPRESSION_BIT 109 97 # define SM2_R_INVALID_CURVE 141 98 # define SM2_R_INVALID_DIGEST 151 99 # define SM2_R_INVALID_DIGEST_TYPE 138 100 # define SM2_R_INVALID_ENCODING 102 101 # define SM2_R_INVALID_FIELD 103 102 # define SM2_R_INVALID_FORM 104 103 # define SM2_R_INVALID_GROUP_ORDER 122 104 # define SM2_R_INVALID_KEY 116 105 # define SM2_R_INVALID_OUTPUT_LENGTH 161 106 # define SM2_R_INVALID_PEER_KEY 133 107 # define SM2_R_INVALID_PENTANOMIAL_BASIS 132 108 # define SM2_R_INVALID_PRIVATE_KEY 123 109 # define SM2_R_INVALID_TRINOMIAL_BASIS 137 110 # define SM2_R_KDF_FAILURE 162 111 # define SM2_R_KDF_PARAMETER_ERROR 148 112 # define SM2_R_KEYS_NOT_SET 140 113 # define SM2_R_MISSING_PARAMETERS 124 114 # define SM2_R_MISSING_PRIVATE_KEY 125 115 # define SM2_R_NEED_NEW_SETUP_VALUES 157 116 # define SM2_R_NOT_A_NIST_PRIME 135 117 # define SM2_R_NOT_IMPLEMENTED 126 118 # define SM2_R_NOT_INITIALIZED 111 119 # define SM2_R_NO_PARAMETERS_SET 139 120 # define SM2_R_NO_PRIVATE_VALUE 154 121 # define SM2_R_OPERATION_NOT_SUPPORTED 152 122 # define SM2_R_PASSED_NULL_PARAMETER 134 123 # define SM2_R_PEER_KEY_ERROR 149 124 # define SM2_R_PKPARAMETERS2GROUP_FAILURE 127 125 # define SM2_R_POINT_ARITHMETIC_FAILURE 155 126 # define SM2_R_POINT_AT_INFINITY 106 127 # define SM2_R_POINT_IS_NOT_ON_CURVE 107 128 # define SM2_R_RANDOM_NUMBER_GENERATION_FAILED 158 129 # define SM2_R_SHARED_INFO_ERROR 150 130 # define SM2_R_SLOT_FULL 108 131 # define SM2_R_UNDEFINED_GENERATOR 113 132 # define SM2_R_UNDEFINED_ORDER 128 133 # define SM2_R_UNKNOWN_GROUP 129 134 # define SM2_R_UNKNOWN_ORDER 114 135 # define SM2_R_UNSUPPORTED_FIELD 131 136 # define SM2_R_WRONG_CURVE_PARAMETERS 145 137 # define SM2_R_WRONG_ORDER 130 138 139 #ifdef __cplusplus 140 } 141 #endif 142 #endif 143