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comparison ocb_shift_xor.c @ 0:d7da3b1e1540 libtomcrypt

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put back the 0.95 makefile which was inadvertently merged over
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:21:40 +0000
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-1:000000000000 0:d7da3b1e1540
1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
2 *
3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner.
5 *
6 * The library is free for all purposes without any express
7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtomcrypt.org
10 */
11
12 /* OCB Implementation by Tom St Denis */
13 #include "mycrypt.h"
14
15 #ifdef OCB_MODE
16
17 void ocb_shift_xor(ocb_state *ocb, unsigned char *Z)
18 {
19 int x, y;
20 y = ocb_ntz(ocb->block_index++);
21 for (x = 0; x < ocb->block_len; x++) {
22 ocb->Li[x] ^= ocb->Ls[y][x];
23 Z[x] = ocb->Li[x] ^ ocb->R[x];
24 }
25 }
26
27 #endif