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      1 /*
      2  * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
      3  * Copyright 2017 Ribose Inc. All Rights Reserved.
      4  *
      5  * Licensed under the Apache License 2.0 (the "License").  You may not use
      6  * this file except in compliance with the License.  You can obtain a copy
      7  * in the file LICENSE in the source distribution or at
      8  * https://www.openssl.org/source/license.html
      9  */
     10 
     11 /* This header can move into provider when legacy support is removed */
     12 #ifndef OSSL_INTERNAL_SM3_H
     13 # define OSSL_INTERNAL_SM3_H
     14 # pragma once
     15 
     16 # include <openssl/opensslconf.h>
     17 
     18 # ifdef OPENSSL_NO_SM3
     19 #  error SM3 is disabled.
     20 # endif
     21 
     22 # define SM3_DIGEST_LENGTH 32
     23 # define SM3_WORD unsigned int
     24 
     25 # define SM3_CBLOCK      64
     26 # define SM3_LBLOCK      (SM3_CBLOCK/4)
     27 
     28 typedef struct SM3state_st {
     29    SM3_WORD A, B, C, D, E, F, G, H;
     30    SM3_WORD Nl, Nh;
     31    SM3_WORD data[SM3_LBLOCK];
     32    unsigned int num;
     33 } SM3_CTX;
     34 
     35 int ossl_sm3_init(SM3_CTX *c);
     36 int ossl_sm3_update(SM3_CTX *c, const void *data, size_t len);
     37 int ossl_sm3_final(unsigned char *md, SM3_CTX *c);
     38 
     39 #endif /* OSSL_INTERNAL_SM3_H */
     40