1  /*
       2   * Copyright (c) 2017, Björn Esser <besser82@fedoraproject.org>
       3   * All rights reserved.
       4   *
       5   * Redistribution and use in source and binary forms, with or without
       6   * modification, are permitted provided that the following conditions
       7   * are met:
       8   *
       9   * 1. Redistributions of source code must retain the above copyright
      10   *    notice, this list of conditions and the following disclaimer.
      11   *
      12   * 2. Redistributions in binary form must reproduce the above copyright
      13   *    notice, this list of conditions and the following disclaimer in the
      14   *    documentation and/or other materials provided with the distribution.
      15   *
      16   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
      17   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
      18   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
      19   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
      20   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      21   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
      22   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
      23   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
      24   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
      25   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
      26   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      27   */
      28  
      29  /* Generate the keyed-hash message authentication code of TEXT and KEY.
      30     The resulting HMAC is written into RESBUF, which should point to 20
      31     bytes of storage.  */
      32  extern void
      33  hmac_sha1_process_data (const uint8_t *text, size_t text_len,
      34                          const uint8_t *key, size_t key_len,
      35                          void *resbuf);