stun/stunhmac.h

   1 /*
   2  * This file is part of the Nice GLib ICE library.
   3  *
   4  * (C) 2008 Collabora Ltd.
   5  * (C) 2008 Nokia Corporation. All rights reserved.
   6  *  Contact: Youness Alaoui
   7  *
   8  * The contents of this file are subject to the Mozilla Public License Version
   9  * 1.1 (the "License"); you may not use this file except in compliance with
  10  * the License. You may obtain a copy of the License at
  11  * http://www.mozilla.org/MPL/
  12  *
  13  * Software distributed under the License is distributed on an "AS IS" basis,
  14  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  15  * for the specific language governing rights and limitations under the
  16  * License.
  17  *
  18  * The Original Code is the Nice GLib ICE library.
  19  *
  20  * The Initial Developers of the Original Code are Collabora Ltd and Nokia
  21  * Corporation. All Rights Reserved.
  22  *
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of the
  25  * the GNU Lesser General Public License Version 2.1 (the "LGPL"), in which
  26  * case the provisions of LGPL are applicable instead of those above. If you
  27  * wish to allow use of your version of this file only under the terms of the
  28  * LGPL and not to allow others to use your version of this file under the
  29  * MPL, indicate your decision by deleting the provisions above and replace
  30  * them with the notice and other provisions required by the LGPL. If you do
  31  * not delete the provisions above, a recipient may use your version of this
  32  * file under either the MPL or the LGPL.
  33  */
  34
  35 #ifndef _STUN_HMAC_H
  36 #define _STUN_HMAC_H
  37
  38 #include "stunmessage.h"
  39
  40 /**
  41  * Computes the MESSAGE-INTEGRITY hash of a STUN message.
  42  * @param msg pointer to the STUN message
  43  * @param len size of the message from header (inclusive) and up to
  44  *            MESSAGE-INTEGRITY attribute (inclusive)
  45  * @param sha output buffer for SHA1 hash (20 bytes)
  46  * @param key HMAC key
  47  * @param keylen HMAC key bytes length
  48  *
  49  * @return fingerprint value in <b>host</b> byte order.
  50  */
  51 void stun_sha1 (const uint8_t *msg, size_t len,
  52     uint8_t *sha, const void *key, size_t keylen, int padding);
  53
  54 /**
  55  * SIP H(A1) computation
  56  */
  57
  58 void stun_hash_creds (const uint8_t *realm, size_t realm_len,
  59     const uint8_t *username, size_t username_len,
  60     const uint8_t *password, size_t password_len,
  61     unsigned char md5[16]);
  62 /**
  63  * Generates a pseudo-random secure STUN transaction ID.
  64  */
  65 void stun_make_transid (stun_transid_t id);
  66
  67
  68 #endif /* _STUN_HMAC_H */