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97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
/*
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* @(#)des_crypt.h 2.1 88/08/11 4.0 RPCSRC
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*
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* des_crypt.h, des library routine interface
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* Copyright (c) 2010, Oracle America, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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* * Neither the name of the "Oracle America, Inc." nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __DES_CRYPT_H__
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#define __DES_CRYPT_H__ 1
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#include <features.h>
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__BEGIN_DECLS
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#define DES_MAXDATA 8192 /* max bytes encrypted in one call */
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#define DES_DIRMASK (1 << 0)
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#define DES_ENCRYPT (0*DES_DIRMASK) /* Encrypt */
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#define DES_DECRYPT (1*DES_DIRMASK) /* Decrypt */
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#define DES_DEVMASK (1 << 1)
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#define DES_HW (0*DES_DEVMASK) /* Use hardware device */
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#define DES_SW (1*DES_DEVMASK) /* Use software device */
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#define DESERR_NONE 0 /* succeeded */
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#define DESERR_NOHWDEVICE 1 /* succeeded, but hw device not available */
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#define DESERR_HWERROR 2 /* failed, hardware/driver error */
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#define DESERR_BADPARAM 3 /* failed, bad parameter to call */
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#define DES_FAILED(err) \
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((err) > DESERR_NOHWDEVICE)
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/*
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* cbc_crypt()
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* ecb_crypt()
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*
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* Encrypt (or decrypt) len bytes of a buffer buf.
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* The length must be a multiple of eight.
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* The key should have odd parity in the low bit of each byte.
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* ivec is the input vector, and is updated to the new one (cbc only).
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* The mode is created by oring together the appropriate parameters.
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* DESERR_NOHWDEVICE is returned if DES_HW was specified but
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* there was no hardware to do it on (the data will still be
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* encrypted though, in software).
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*/
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/*
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* Cipher Block Chaining mode
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*/
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extern int cbc_crypt (char *__key, char *__buf, unsigned __len,
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unsigned __mode, char *__ivec) __THROW;
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/*
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* Electronic Code Book mode
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*/
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extern int ecb_crypt (char *__key, char *__buf, unsigned __len,
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unsigned __mode) __THROW;
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/*
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* Set des parity for a key.
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* DES parity is odd and in the low bit of each byte
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*/
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extern void des_setparity (char *__key) __THROW;
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__END_DECLS
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#endif
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