X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f53020e729d583f7975095ca7b4b467741d99edb..704d552a776c35f4792971c739737047c0396205:/armsrc/mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index c9ff8c64..84477a2b 100644
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -18,6 +18,7 @@
 #include "iso14443a.h"
 #include "crapto1.h"
 #include "mifareutil.h"
+#include "parity.h"
 #include "des.h"
 
 int MF_DBGLEVEL = MF_DBG_ALL;
@@ -50,7 +51,7 @@ void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, u
 		data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
 		if((i&0x0007) == 0) 
 			par[i>>3] = 0;
-		par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007)));
+		par[i>>3] |= (((filter(pcs->odd) ^ oddparity8(bt)) & 0x01)<<(7-(i&0x0007)));
 	}	
 	return;
 }
@@ -99,7 +100,7 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
 		for (pos = 0; pos < 4; pos++)
 		{
 			ecmd[pos] = crypto1_byte(pcs, 0x00, 0) ^ dcmd[pos];
-			par[0] |= (((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) << (7-pos));
+			par[0] |= (((filter(pcs->odd) ^ oddparity8(dcmd[pos])) & 0x01) << (7-pos));
 		}	
 
 		ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);
@@ -144,7 +145,11 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 	uint32_t pos;
 	uint8_t tmp4[4];
 	uint8_t par[1] = {0x00};
-	byte_t nr[4];
+
+	// "random" reader nonce:
+	byte_t nr[4] = {0x55, 0x41, 0x49, 0x92};
+	//byte_t nr[4] = {0x01, 0x01, 0x01, 0x01};
+	
 	uint32_t nt, ntpp; // Supplied tag nonce
 	
 	uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
@@ -156,12 +161,6 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 	if (MF_DBGLEVEL >= 4)	Dbprintf("rand tag nonce len: %x", len);  
 	if (len != 4) return 1;
 	
-	// "random" reader nonce:
-	nr[0] = 0x55;
-	nr[1] = 0x41;
-	nr[2] = 0x49;
-	nr[3] = 0x92; 
-	
 	// Save the tag nonce (nt)
 	nt = bytes_to_num(receivedAnswer, 4);
 
@@ -193,7 +192,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 	for (pos = 0; pos < 4; pos++)
 	{
 		mf_nr_ar[pos] = crypto1_byte(pcs, nr[pos], 0) ^ nr[pos];
-		par[0] |= (((filter(pcs->odd) ^ oddparity(nr[pos])) & 0x01) << (7-pos));
+		par[0] |= (((filter(pcs->odd) ^ oddparity8(nr[pos])) & 0x01) << (7-pos));
 	}	
 		
 	// Skip 32 bits in pseudo random generator
@@ -204,7 +203,7 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 	{
 		nt = prng_successor(nt,8);
 		mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);
-		par[0] |= (((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) << (7-pos));
+		par[0] |= (((filter(pcs->odd) ^ oddparity8(nt & 0xff)) & 0x01) << (7-pos));
 	}	
 		
 	// Transmit reader nonce and reader answer
@@ -272,7 +271,7 @@ int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){
 	if (MF_DBGLEVEL >= MF_DBG_EXTENDED)
 		Dbprintf("EV1 Auth : %02x%02x%02x%02x",	key[0], key[1], key[2], key[3]);
 	len = mifare_sendcmd(0x1B, key, sizeof(key), resp, respPar, NULL);
-	//len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);
+
 	if (len != 4) {
 		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);
 		return 0;
@@ -427,7 +426,7 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
 	for (pos = 0; pos < 18; pos++)
 	{
 		d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];
-		par[pos>>3] |= (((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));
+		par[pos>>3] |= (((filter(pcs->odd) ^ oddparity8(d_block[pos])) & 0x01) << (7 - (pos&0x0007)));
 	}	
 
 	ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);
@@ -501,22 +500,21 @@ int mifare_ultra_writeblock(uint8_t blockNo, uint8_t *blockData)
     }
     return 0;
 }
-
-int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) 
-{
+int mifare_classic_halt_ex(struct Crypto1State *pcs) {
 	uint16_t len;	
-	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
-	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+	uint8_t receivedAnswer[4];
+	uint8_t receivedAnswerPar[4];
 
 	len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
 	if (len != 0) {
-		if (MF_DBGLEVEL >= MF_DBG_ERROR)
-			Dbprintf("halt error. response len: %x", len);  
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("halt error. response len: %x", len);  
 		return 1;
 	}
-
 	return 0;
 }
+int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) {
+	return mifare_classic_halt_ex(pcs);
+}
 
 int mifare_ultra_halt()
 {
@@ -556,8 +554,12 @@ uint8_t FirstBlockOfSector(uint8_t sectorNo)
 
 // work with emulator memory
 void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
+	emlSetMem_xt(data, blockNum, blocksCount, 16);
+}
+
+void emlSetMem_xt(uint8_t *data, int blockNum, int blocksCount, int blockBtWidth) {
 	uint8_t* emCARD = BigBuf_get_EM_addr();
-	memcpy(emCARD + blockNum * 16, data, blocksCount * 16);
+	memcpy(emCARD + blockNum * blockBtWidth, data, blocksCount * blockBtWidth);
 }
 
 void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {