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/*
* null-cipher.h
*
* header file for the null cipher
*
*
* David A. McGrew
* Cisco Systems, Inc.
*/
/*
*
* Copyright (c) 2001-2006, Cisco Systems, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted 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 the Cisco Systems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 HOLDERS 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.
*
*/
#ifndef NULL_CIPHER_H
#define NULL_CIPHER_H
#include "datatypes.h"
#include "cipher.h"
typedef struct {
char foo ;/* empty, for now */
} null_cipher_ctx_t;
/*
* none of these functions do anything (though future versions may keep
* track of bytes encrypted, number of instances, and/or other info).
*/
err_status_t
null_cipher_init(null_cipher_ctx_t *c, const uint8_t *key);
err_status_t
null_cipher_set_segment(null_cipher_ctx_t *c,
unsigned long index);
err_status_t
null_cipher_encrypt(null_cipher_ctx_t *c,
unsigned char *buf, unsigned int *bytes_to_encr);
err_status_t
null_cipher_encrypt_aligned(null_cipher_ctx_t *c,
unsigned char *buf, int bytes_to_encr);
#endif /* NULL_CIPHER_H */
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