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/*
* Copyright 1995 by Richard P. Basch. All Rights Reserved.
* Copyright 1995 by Lehman Brothers, Inc. 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 Richard P. Basch, Lehman Brothers and M.I.T. not be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. Richard P. Basch,
* Lehman Brothers and M.I.T. make no representations about the suitability
* of this software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#include "des_int.h"
#include "f_tables.h"
/*
* Triple-DES ECB encryption mode.
*/
int
mit_des3_ecb_encrypt(in, out, sched1, sched2, sched3, encrypt)
const mit_des_cblock FAR *in;
mit_des_cblock FAR *out;
mit_des_key_schedule sched1, sched2, sched3;
int encrypt;
{
if (encrypt) {
mit_des_ecb_encrypt(in, out, sched1, encrypt);
mit_des_ecb_encrypt(out, out, sched2, !encrypt);
mit_des_ecb_encrypt(out, out, sched3, encrypt);
} else {
mit_des_ecb_encrypt(in, out, sched3, encrypt);
mit_des_ecb_encrypt(out, out, sched2, !encrypt);
mit_des_ecb_encrypt(out, out, sched1, encrypt);
}
return 0;
}
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