The Tor Browser: netwerk/srtp/src/crypto/include/null

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

     2  * null-cipher.h

     3  *

     4  * header file for the null cipher

     5  *

     6  *

     7  * David A. McGrew

     8  * Cisco Systems, Inc.

     9  */

    11 /*

    12  *

    13  * Copyright (c) 2001-2006, Cisco Systems, Inc.

    14  * All rights reserved.

    15  *

    16  * Redistribution and use in source and binary forms, with or without

    17  * modification, are permitted provided that the following conditions

    18  * are met:

    19  *

    20  *   Redistributions of source code must retain the above copyright

    21  *   notice, this list of conditions and the following disclaimer.

    22  *

    23  *   Redistributions in binary form must reproduce the above

    24  *   copyright notice, this list of conditions and the following

    25  *   disclaimer in the documentation and/or other materials provided

    26  *   with the distribution.

    27  *

    28  *   Neither the name of the Cisco Systems, Inc. nor the names of its

    29  *   contributors may be used to endorse or promote products derived

    30  *   from this software without specific prior written permission.

    31  *

    32  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    33  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    34  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

    35  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

    36  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

    37  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    38  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

    39  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

    41  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    42  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

    43  * OF THE POSSIBILITY OF SUCH DAMAGE.

    44  *

    45  */

    48 #ifndef NULL_CIPHER_H

    49 #define NULL_CIPHER_H

    51 #include "datatypes.h"

    52 #include "cipher.h"

    54 typedef struct {

    55   char foo ;/* empty, for now */

    56 } null_cipher_ctx_t;

    59 /*

    60  * none of these functions do anything (though future versions may keep

    61  * track of bytes encrypted, number of instances, and/or other info).

    62  */

    64 err_status_t

    65 null_cipher_init(null_cipher_ctx_t *c, const uint8_t *key, int key_len);

    67 err_status_t

    68 null_cipher_set_segment(null_cipher_ctx_t *c,

    69 			unsigned long segment_index);

    71 err_status_t

    72 null_cipher_encrypt(null_cipher_ctx_t *c,

    73 		    unsigned char *buf, unsigned int *bytes_to_encr);

    76 err_status_t

    77 null_cipher_encrypt_aligned(null_cipher_ctx_t *c,

    78 			    unsigned char *buf, int bytes_to_encr);

    80 #endif /* NULL_CIPHER_H */

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