    /*====================================================================*
     *
     *   Copyright (c) 2013 Qualcomm Atheros, Inc.
     *
     *   All rights reserved.
     *
     *   Redistribution and use in source and binary forms, with or
     *   without modification, are permitted (subject to the limitations
     *   in the disclaimer below) provided that the following conditions
     *   are met:
     *
     *   * Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *
     *   * Redistributions in binary form must reproduce the above
     *     copyright notice, this list of conditions and the following
     *     disclaimer in the documentation and/or other materials
     *     provided with the distribution.
     *
     *   * Neither the name of Qualcomm Atheros nor the names of
     *     its contributors may be used to endorse or promote products
     *     derived from this software without specific prior written
     *     permission.
     *
     *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
     *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
     *   COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
     *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     *   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
     *   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   HPAVKey.h - HomePlug AV key definitions and constants;
     *
     *.  Qualcomm Atheros HomePlug AV Powerline Toolkit
     *:  Copyright (c) 2009-2013 by Qualcomm Atheros Inc. ALL RIGHTS RESERVED;
     *;  For demonstration and evaluation only; Not for production use.
     *
     *   Contributor(s);
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

    #ifndef HPAVKEY_HEADER
    #define HPAVKEY_HEADER

    /*====================================================================*
     *   system header files;
     *--------------------------------------------------------------------*/

    #include <stdint.h>
    #include <string.h>

    /*====================================================================*
     *   constants;
     *--------------------------------------------------------------------*/

    #define HPAVKEY_CHAR_MIN 0x20
    #define HPAVKEY_CHAR_MAX 0x7E
    #define HPAVKEY_PHRASE_MIN 12
    #define HPAVKEY_PHRASE_MAX 64
    #define HPAVKEY_DIGEST_LEN 32
    #define HPAVKEY_SHA_LEN 32
    #define HPAVKEY_DAK_LEN 16
    #define HPAVKEY_NMK_LEN 16
    #define HPAVKEY_NID_LEN 7

    #define HPAVKEY_SHA 0
    #define HPAVKEY_DAK 1
    #define HPAVKEY_NMK 2
    #define HPAVKEY_NID 3

    #define HPAVKEY_VERBOSE (1 << 0)
    #define HPAVKEY_SILENCE (1 << 1)
    #define HPAVKEY_ENFORCE (1 << 2)

    /*====================================================================*
     *
     *--------------------------------------------------------------------*/

    void HPAVKeyNMK (uint8_t NMK [], char const * string);
    void HPAVKeyDAK (uint8_t DAK [], char const * string);
    void HPAVKeyNID (uint8_t NID [], const uint8_t NMK [], uint8_t mode);
    void HPAVKeySHA (uint8_t digest [], char const * string);
    void HPAVKeyOut (const uint8_t digest [], size_t length, char const * phrase, unsigned flags);

    /*====================================================================*
     *
     *--------------------------------------------------------------------*/

    #endif

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