Code improved for less memory

[proxmark3-svn] / client / loclass / cipher.h

diff --git a/client/loclass/cipher.h b/client/loclass/cipher.h
index 10ea8059bde26f9fdfa1b2809e51a0cb1ed67a95..632910a98f55594aafcb289a81e8334bcfdcb551 100644 (file)
--- a/client/loclass/cipher.h
+++ b/client/loclass/cipher.h
@@ -1,5 +1,17 @@
 /*****************************************************************************
- * This file is part of iClassCipher. It is a reconstructon of the cipher engine
+ * WARNING
+ *
+ * THIS CODE IS CREATED FOR EXPERIMENTATION AND EDUCATIONAL USE ONLY. 
+ * 
+ * USAGE OF THIS CODE IN OTHER WAYS MAY INFRINGE UPON THE INTELLECTUAL 
+ * PROPERTY OF OTHER PARTIES, SUCH AS INSIDE SECURE AND HID GLOBAL, 
+ * AND MAY EXPOSE YOU TO AN INFRINGEMENT ACTION FROM THOSE PARTIES. 
+ * 
+ * THIS CODE SHOULD NEVER BE USED TO INFRINGE PATENTS OR INTELLECTUAL PROPERTY RIGHTS. 
+ *
+ *****************************************************************************
+ *
+ * This file is part of loclass. It is a reconstructon of the cipher engine
  * used in iClass, and RFID techology.
  *
  * The implementation is based on the work performed by
@@ -10,7 +22,7 @@
  *
  * This is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
+ * by the Free Software Foundation, or, at your option, any later version. 
  *
  * This file is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -18,29 +30,21 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with IClassCipher.  If not, see <http://www.gnu.org/licenses/>.
+ * along with loclass.  If not, see <http://www.gnu.org/licenses/>.
+ * 
+ * 
  ****************************************************************************/
 
+
 #ifndef CIPHER_H
 #define CIPHER_H
 #include <stdint.h>
 
-/**
-* Definition 1 (Cipher state). A cipher state of iClass s is an element of F 40/2
-* consisting of the following four components:
-*      1. the left register l = (l 0 . . . l 7 ) ∈ F 8/2 ;
-*      2. the right register r = (r 0 . . . r 7 ) ∈ F 8/2 ;
-*      3. the top register t = (t 0 . . . t 15 ) ∈ F 16/2 .
-*      4. the bottom register b = (b 0 . . . b 7 ) ∈ F 8/2 .
-**/
-typedef struct {
-       uint8_t l;
-       uint8_t r;
-       uint8_t b;
-       uint16_t t;
-} State;
+void doMAC(uint8_t *cc_nr_p, uint8_t *div_key_p, uint8_t mac[4]);
+void doMAC_N(uint8_t *address_data_p,uint8_t address_data_size, uint8_t *div_key_p, uint8_t mac[4]);
 
-void printarr(char * name, uint8_t* arr, int len);
-int calc_iclass_mac(uint8_t *cc_nr_p, uint8_t *div_key_p, uint8_t *mac);
+#ifndef ON_DEVICE
+int testMAC();
+#endif
 
 #endif // CIPHER_H