90 lines
1.8 KiB
C
90 lines
1.8 KiB
C
/*
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* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#ifndef GMSSL_SM3_H
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#define GMSSL_SM3_H
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#include <string.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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SM3 Public API
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SM3_DIGEST_SIZE
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SM3_HMAC_SIZE
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SM3_CTX
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sm3_init
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sm3_update
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sm3_finish
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SM3_HMAC_CTX
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sm3_hmac_init
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sm3_hmac_update
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sm3_hmac_finish
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sm3_digest
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sm3_hmac
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*/
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#define SM3_IS_BIG_ENDIAN 1
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#define SM3_DIGEST_SIZE 32
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#define SM3_BLOCK_SIZE 64
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#define SM3_STATE_WORDS 8
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#define SM3_HMAC_SIZE (SM3_DIGEST_SIZE)
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typedef struct {
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uint32_t digest[SM3_STATE_WORDS];
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uint64_t nblocks;
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uint8_t block[SM3_BLOCK_SIZE];
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size_t num;
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} SM3_CTX;
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void sm3_init(SM3_CTX *ctx);
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void sm3_update(SM3_CTX *ctx, const uint8_t *data, size_t datalen);
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void sm3_finish(SM3_CTX *ctx, uint8_t dgst[SM3_DIGEST_SIZE]);
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void sm3_digest(const uint8_t *data, size_t datalen, uint8_t dgst[SM3_DIGEST_SIZE]);
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void sm3_compress_blocks(uint32_t digest[8], const uint8_t *data, size_t blocks);
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typedef struct {
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SM3_CTX sm3_ctx;
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uint8_t key[SM3_BLOCK_SIZE];
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} SM3_HMAC_CTX;
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void sm3_hmac_init(SM3_HMAC_CTX *ctx, const uint8_t *key, size_t keylen);
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void sm3_hmac_update(SM3_HMAC_CTX *ctx, const uint8_t *data, size_t datalen);
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void sm3_hmac_finish(SM3_HMAC_CTX *ctx, uint8_t mac[SM3_HMAC_SIZE]);
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void sm3_hmac(const uint8_t *key, size_t keylen,
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const uint8_t *data, size_t datalen,
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uint8_t mac[SM3_HMAC_SIZE]);
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typedef struct {
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SM3_CTX sm3_ctx;
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size_t outlen;
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} SM3_KDF_CTX;
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void sm3_kdf_init(SM3_KDF_CTX *ctx, size_t outlen);
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void sm3_kdf_update(SM3_KDF_CTX *ctx, const uint8_t *data, size_t datalen);
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void sm3_kdf_finish(SM3_KDF_CTX *ctx, uint8_t *out);
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#ifdef __cplusplus
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}
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#endif
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#endif
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