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Diffstat (limited to 'secure/lib/libdes/cfb_enc.c')
| -rw-r--r-- | secure/lib/libdes/cfb_enc.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/secure/lib/libdes/cfb_enc.c b/secure/lib/libdes/cfb_enc.c deleted file mode 100644 index a2875a503612..000000000000 --- a/secure/lib/libdes/cfb_enc.c +++ /dev/null @@ -1,160 +0,0 @@ -/* crypto/des/cfb_enc.c */ -/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) - * All rights reserved. - * - * This file is part of an SSL implementation written - * by Eric Young (eay@mincom.oz.au). - * The implementation was written so as to conform with Netscapes SSL - * specification. This library and applications are - * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE - * as long as the following conditions are aheared to. - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. If this code is used in a product, - * Eric Young should be given attribution as the author of the parts used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Eric Young (eay@mincom.oz.au) - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] - */ - -#include "des_locl.h" - -/* The input and output are loaded in multiples of 8 bits. - * What this means is that if you hame numbits=12 and length=2 - * the first 12 bits will be retrieved from the first byte and half - * the second. The second 12 bits will come from the 3rd and half the 4th - * byte. - */ -void des_cfb_encrypt(in, out, numbits, length, schedule, ivec, encrypt) -unsigned char *in; -unsigned char *out; -int numbits; -long length; -des_key_schedule schedule; -des_cblock (*ivec); -int encrypt; - { - register DES_LONG d0,d1,v0,v1,n=(numbits+7)/8; - register DES_LONG mask0,mask1; - register unsigned long l=length; - register int num=numbits; - DES_LONG ti[2]; - unsigned char *iv; - - if (num > 64) return; - if (num > 32) - { - mask0=0xffffffffL; - if (num == 64) - mask1=mask0; - else mask1=(1L<<(num-32))-1; - } - else - { - if (num == 32) - mask0=0xffffffffL; - else mask0=(1L<<num)-1; - mask1=0x00000000; - } - - iv=(unsigned char *)ivec; - c2l(iv,v0); - c2l(iv,v1); - if (encrypt) - { - while (l >= n) - { - l-=n; - ti[0]=v0; - ti[1]=v1; - des_encrypt((DES_LONG *)ti,schedule,DES_ENCRYPT); - c2ln(in,d0,d1,n); - in+=n; - d0=(d0^ti[0])&mask0; - d1=(d1^ti[1])&mask1; - l2cn(d0,d1,out,n); - out+=n; - /* 30-08-94 - eay - changed because l>>32 and - * l<<32 are bad under gcc :-( */ - if (num == 32) - { v0=v1; v1=d0; } - else if (num == 64) - { v0=d0; v1=d1; } - else if (num > 32) /* && num != 64 */ - { - v0=((v1>>(num-32))|(d0<<(64-num)))&0xffffffffL; - v1=((d0>>(num-32))|(d1<<(64-num)))&0xffffffffL; - } - else /* num < 32 */ - { - v0=((v0>>num)|(v1<<(32-num)))&0xffffffffL; - v1=((v1>>num)|(d0<<(32-num)))&0xffffffffL; - } - } - } - else - { - while (l >= n) - { - l-=n; - ti[0]=v0; - ti[1]=v1; - des_encrypt((DES_LONG *)ti,schedule,DES_ENCRYPT); - c2ln(in,d0,d1,n); - in+=n; - /* 30-08-94 - eay - changed because l>>32 and - * l<<32 are bad under gcc :-( */ - if (num == 32) - { v0=v1; v1=d0; } - else if (num == 64) - { v0=d0; v1=d1; } - else if (num > 32) /* && num != 64 */ - { - v0=((v1>>(num-32))|(d0<<(64-num)))&0xffffffffL; - v1=((d0>>(num-32))|(d1<<(64-num)))&0xffffffffL; - } - else /* num < 32 */ - { - v0=((v0>>num)|(v1<<(32-num)))&0xffffffffL; - v1=((v1>>num)|(d0<<(32-num)))&0xffffffffL; - } - d0=(d0^ti[0])&mask0; - d1=(d1^ti[1])&mask1; - l2cn(d0,d1,out,n); - out+=n; - } - } - iv=(unsigned char *)ivec; - l2c(v0,iv); - l2c(v1,iv); - v0=v1=d0=d1=ti[0]=ti[1]=0; - } - |