Mercurial > dropbear
view ocb_shift_xor.c @ 144:7ed585a2c53b libtomcrypt
propagate of 3f8f752126017cbe7d93c4086c27a91550df745f and 747ebf284d40a15b338e5a5c7730ecec6eade3d7 from branch 'au.asn.ucc.matt.ltc-orig' to 'au.asn.ucc.matt.ltc-db'
author | Matt Johnston <matt@ucc.asn.au> |
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date | Sun, 19 Dec 2004 11:47:33 +0000 |
parents | d7da3b1e1540 |
children |
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, [email protected], http://libtomcrypt.org */ /* OCB Implementation by Tom St Denis */ #include "mycrypt.h" #ifdef OCB_MODE void ocb_shift_xor(ocb_state *ocb, unsigned char *Z) { int x, y; y = ocb_ntz(ocb->block_index++); for (x = 0; x < ocb->block_len; x++) { ocb->Li[x] ^= ocb->Ls[y][x]; Z[x] = ocb->Li[x] ^ ocb->R[x]; } } #endif