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/*
* lib/des425/des.c
*
* Copyright 1985, 1986, 1987, 1988, 1990 by the Massachusetts Institute
* of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* These routines perform encryption and decryption using the DES
* private key algorithm, or else a subset of it-- fewer inner loops.
* (AUTH_DES_ITER defaults to 16, may be less.)
*
* Under U.S. law, this software may not be exported outside the US
* without license from the U.S. Commerce department.
*
* The key schedule is passed as an arg, as well as the cleartext or
* ciphertext.
*
* All registers labeled imply Vax using the Ultrix or 4.2bsd
* compiler.
*
*
* NOTE: bit and byte numbering:
* DES algorithm is defined in terms of bits of L
* followed by bits of R.
* bit 0 ==> lsb of L
* bit 63 ==> msb of R
*
* Always work in register pairs, FROM L1,R1 TO L2,R2 to make
* bookkeeping easier.
*
* originally written by Steve Miller, MIT Project Athena
*/
#include "des.h"
KRB5_DLLIMP int KRB5_CALLCONV
des_ecb_encrypt(clear, cipher, schedule, encrypt)
unsigned long *clear;
unsigned long *cipher;
int encrypt; /* 0 ==> decrypt, else encrypt */
register mit_des_key_schedule schedule; /* r11 */
{
return (mit_des_ecb_encrypt((const mit_des_cblock FAR *) clear,
(mit_des_cblock *) cipher,
schedule,
encrypt));
}
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