text: /*
   * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the OpenSSL license (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  #ifndef HEADER_CMAC_H
  # define HEADER_CMAC_H
  
  # ifndef OPENSSL_NO_CMAC
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  # include <openssl/evp.h>
  
  /* Opaque */
  typedef struct CMAC_CTX_st CMAC_CTX;
  
  CMAC_CTX *CMAC_CTX_new(void);
  void CMAC_CTX_cleanup(CMAC_CTX *ctx);
  void CMAC_CTX_free(CMAC_CTX *ctx);
  EVP_CIPHER_CTX *CMAC_CTX_get0_cipher_ctx(CMAC_CTX *ctx);
  int CMAC_CTX_copy(CMAC_CTX *out, const CMAC_CTX *in);
  
  int CMAC_Init(CMAC_CTX *ctx, const void *key, size_t keylen,
                const EVP_CIPHER *cipher, ENGINE *impl);
  int CMAC_Update(CMAC_CTX *ctx, const void *data, size_t dlen);
  int CMAC_Final(CMAC_CTX *ctx, unsigned char *out, size_t *poutlen);
  int CMAC_resume(CMAC_CTX *ctx);
  
  #ifdef  __cplusplus
  }
  #endif
  
  # endif
  #endif
  