Mercurial > dropbear
diff ocb_shift_xor.c @ 0:d7da3b1e1540 libtomcrypt
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 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ocb_shift_xor.c Mon May 31 18:21:40 2004 +0000 @@ -0,0 +1,27 @@ +/* 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