chg: unused .. but not for long

[proxmark3-svn] / armsrc / crypto1.c

diff --git a/armsrc/crypto1.c b/armsrc/crypto1.c
index 9d103c7f553ab285fd2410f8ad3a53e8d1e4fb39..98d38b2bf2189ad4a65047e263669e6a67b53c84 100644 (file)
--- a/armsrc/crypto1.c
+++ b/armsrc/crypto1.c
@@ -1,28 +1,25 @@
 /*  crypto1.c
 
 /*  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 <blapost@gmail.com>
+       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 <blapost@gmail.com>

 */
 #include "crapto1.h"
 #include <stdlib.h>
 
 */
 #include "crapto1.h"
 #include <stdlib.h>
 

-#define SWAPENDIAN(x)\
-       (x = (x >> 8 & 0xff00ff) | (x & 0xff00ff) << 8, x = x >> 16 | x << 16)
-

 void crypto1_create(struct Crypto1State *s, uint64_t key)
 {
 //     struct Crypto1State *s = malloc(sizeof(*s));
 void crypto1_create(struct Crypto1State *s, uint64_t key)
 {
 //     struct Crypto1State *s = malloc(sizeof(*s));


@@ -32,13 +29,12 @@ void crypto1_create(struct Crypto1State *s, uint64_t key)
                s->odd  = s->odd  << 1 | BIT(key, (i - 1) ^ 7);
                s->even = s->even << 1 | BIT(key, i ^ 7);
        }
                s->odd  = s->odd  << 1 | BIT(key, (i - 1) ^ 7);
                s->even = s->even << 1 | BIT(key, i ^ 7);
        }

-       return;

 }
 void crypto1_destroy(struct Crypto1State *state)
 {
 //     free(state);
 }
 void crypto1_destroy(struct Crypto1State *state)
 {
 //     free(state);

-  state->odd = 0;
-  state->even = 0;
+       state->odd = 0;
+       state->even = 0;

 }
 void crypto1_get_lfsr(struct Crypto1State *state, uint64_t *lfsr)
 {
 }
 void crypto1_get_lfsr(struct Crypto1State *state, uint64_t *lfsr)
 {


@@ -51,6 +47,7 @@ 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;
 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;
        uint8_t ret = filter(s->odd);
 
        feedin  = ret & !!is_encrypted;


@@ -59,26 +56,77 @@ 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);
 
        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)
 {
 
        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;
        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)
 {
        return ret;
 }
 uint32_t crypto1_word(struct Crypto1State *s, uint32_t in, int is_encrypted)
 {

+/*

        uint32_t i, ret = 0;
 
        for (i = 0; i < 32; ++i)
                ret |= crypto1_bit(s, BEBIT(in, i), is_encrypted) << (i ^ 24);
        uint32_t i, ret = 0;
 
        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;
 }
 
        return ret;
 }