X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f89c705002842291e39d000f27dbaea1ddd78917..ba4ad25b37aa314fd2588b171f0f8ca73e1c5ef9:/client/nonce2key/crypto1.c diff --git a/client/nonce2key/crypto1.c b/client/nonce2key/crypto1.c index fbf88898..268d55a0 100644 --- a/client/nonce2key/crypto1.c +++ b/client/nonce2key/crypto1.c @@ -1,34 +1,35 @@ /* crypto1.c - This program is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License - as published by the Free Software Foundation; either version 2 - of the License, or (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, - MA 02110-1301, US - - Copyright (C) 2008-2008 bla + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301, US + + Copyright (C) 2008-2008 bla */ #include "crapto1.h" #include -#define SWAPENDIAN(x)\ - (x = (x >> 8 & 0xff00ff) | (x & 0xff00ff) << 8, x = x >> 16 | x << 16) - struct Crypto1State * crypto1_create(uint64_t key) { struct Crypto1State *s = malloc(sizeof(*s)); - int i; + if ( !s ) return NULL; - for(i = 47;s && i > 0; i -= 2) { + s->odd = s->even = 0; + + int i; + //for(i = 47;s && i > 0; i -= 2) { + for(i = 47; i > 0; i -= 2) { s->odd = s->odd << 1 | BIT(key, (i - 1) ^ 7); s->even = s->even << 1 | BIT(key, i ^ 7); } @@ -49,6 +50,7 @@ void crypto1_get_lfsr(struct Crypto1State *state, uint64_t *lfsr) uint8_t crypto1_bit(struct Crypto1State *s, uint8_t in, int is_encrypted) { uint32_t feedin; + uint32_t tmp; uint8_t ret = filter(s->odd); feedin = ret & !!is_encrypted; @@ -57,26 +59,77 @@ uint8_t crypto1_bit(struct Crypto1State *s, uint8_t in, int is_encrypted) feedin ^= LF_POLY_EVEN & s->even; s->even = s->even << 1 | parity(feedin); - s->odd ^= (s->odd ^= s->even, s->even ^= s->odd); + tmp = s->odd; + s->odd = s->even; + s->even = tmp; return ret; } uint8_t crypto1_byte(struct Crypto1State *s, uint8_t in, int is_encrypted) { + /* uint8_t i, ret = 0; for (i = 0; i < 8; ++i) ret |= crypto1_bit(s, BIT(in, i), is_encrypted) << i; - + */ +// unfold loop 20161012 + uint8_t ret = 0; + ret |= crypto1_bit(s, BIT(in, 0), is_encrypted) << 0; + ret |= crypto1_bit(s, BIT(in, 1), is_encrypted) << 1; + ret |= crypto1_bit(s, BIT(in, 2), is_encrypted) << 2; + ret |= crypto1_bit(s, BIT(in, 3), is_encrypted) << 3; + ret |= crypto1_bit(s, BIT(in, 4), is_encrypted) << 4; + ret |= crypto1_bit(s, BIT(in, 5), is_encrypted) << 5; + ret |= crypto1_bit(s, BIT(in, 6), is_encrypted) << 6; + ret |= crypto1_bit(s, BIT(in, 7), is_encrypted) << 7; return ret; } uint32_t crypto1_word(struct Crypto1State *s, uint32_t in, int is_encrypted) { + /* uint32_t i, ret = 0; - for (i = 0; i < 4; ++i, in <<= 8) - ret = ret << 8 | crypto1_byte(s, in >> 24, is_encrypted); - + for (i = 0; i < 32; ++i) + ret |= crypto1_bit(s, BEBIT(in, i), is_encrypted) << (i ^ 24); +*/ +//unfold loop 2016012 + uint32_t ret = 0; + ret |= crypto1_bit(s, BEBIT(in, 0), is_encrypted) << (0 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 1), is_encrypted) << (1 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 2), is_encrypted) << (2 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 3), is_encrypted) << (3 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 4), is_encrypted) << (4 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 5), is_encrypted) << (5 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 6), is_encrypted) << (6 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 7), is_encrypted) << (7 ^ 24); + + ret |= crypto1_bit(s, BEBIT(in, 8), is_encrypted) << (8 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 9), is_encrypted) << (9 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 10), is_encrypted) << (10 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 11), is_encrypted) << (11 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 12), is_encrypted) << (12 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 13), is_encrypted) << (13 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 14), is_encrypted) << (14 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 15), is_encrypted) << (15 ^ 24); + + ret |= crypto1_bit(s, BEBIT(in, 16), is_encrypted) << (16 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 17), is_encrypted) << (17 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 18), is_encrypted) << (18 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 19), is_encrypted) << (19 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 20), is_encrypted) << (20 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 21), is_encrypted) << (21 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 22), is_encrypted) << (22 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 23), is_encrypted) << (23 ^ 24); + + ret |= crypto1_bit(s, BEBIT(in, 24), is_encrypted) << (24 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 25), is_encrypted) << (25 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 26), is_encrypted) << (26 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 27), is_encrypted) << (27 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 28), is_encrypted) << (28 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 29), is_encrypted) << (29 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 30), is_encrypted) << (30 ^ 24); + ret |= crypto1_bit(s, BEBIT(in, 31), is_encrypted) << (31 ^ 24); return ret; }