X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6a1f2d82bb7d33cd49f9c191f36144ca10d5b629..a6cfa75035727fd0572b4cf0ba1ca9c731f91782:/armsrc/mifareutil.c

diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index 5122d0ec..f79c2ede 100644
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -21,17 +21,6 @@
 
 int MF_DBGLEVEL = MF_DBG_ALL;
 
-// memory management
-uint8_t* get_bigbufptr_recvrespbuf(void) {
-	return (((uint8_t *)BigBuf) + RECV_RESP_OFFSET);	
-}
-uint8_t* get_bigbufptr_recvcmdbuf(void) {
-	return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);	
-}
-uint8_t* get_bigbufptr_emlcardmem(void) {
-	return (((uint8_t *)BigBuf) + CARD_MEMORY_OFFSET);
-}
-
 // crypto1 helpers
 void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){
 	uint8_t	bt = 0;
@@ -54,10 +43,12 @@ void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, uint16_t len, u
 	uint8_t bt = 0;
 	int i;
 	par[0] = 0;
+	
 	for (i = 0; i < len; i++) {
 		bt = data[i];
 		data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
-		if((i&0x0007) == 0) par[i>>3] = 0;
+		if((i&0x0007) == 0) 
+			par[i>>3] = 0;
 		par[i>>3] |= (((filter(pcs->odd) ^ oddparity(bt)) & 0x01)<<(7-(i&0x0007)));
 	}	
 	return;
@@ -81,9 +72,7 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
 
 int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
 {
-    uint8_t dcmd[8];//, ecmd[4];
-    //uint32_t par=0;
-
+	uint8_t dcmd[8];
     dcmd[0] = cmd;
     dcmd[1] = data[0];
 	dcmd[2] = data[1];
@@ -91,16 +80,32 @@ int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint
 	dcmd[4] = data[3];
 	dcmd[5] = data[4];
 	AppendCrc14443a(dcmd, 6);
-	//Dbprintf("Data command: %02x", dcmd[0]);
-	//Dbprintf("Data R: %02x %02x %02x %02x %02x %02x %02x", dcmd[1],dcmd[2],dcmd[3],dcmd[4],dcmd[5],dcmd[6],dcmd[7]);
-
-        //memcpy(ecmd, dcmd, sizeof(dcmd));
 	ReaderTransmit(dcmd, sizeof(dcmd), NULL);
 	int len = ReaderReceive(answer, answer_parity);
-	if(!len)
-	{
+	if(!len) {
                 if (MF_DBGLEVEL >= 1)   Dbprintf("Authentication failed. Card timeout.");
                 return 2;
+    }
+	return len;
+}
+
+int mifare_sendcmd_short_mfucauth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)
+{
+    uint8_t dcmd[19];
+	int len; 
+    dcmd[0] = cmd;
+    memcpy(dcmd+1,data,16);
+	AppendCrc14443a(dcmd, 17);
+	
+	ReaderTransmit(dcmd, sizeof(dcmd), timing);
+	len = ReaderReceive(answer, answer_parity);
+	if(!len) {
+        if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");
+        len = ReaderReceive(answer,answer_parity);
+    }
+    if(len==1)	{
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("NAK - Authentication failed.");
+		return 1;
         }
 	return len;
 }
@@ -153,7 +158,7 @@ int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cm
 	return len;
 }
 
-// mifare commands
+// mifare classic commands
 int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint8_t isNested) 
 {
 	return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);
@@ -165,13 +170,13 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 	int len;	
 	uint32_t pos;
 	uint8_t tmp4[4];
-	uint8_t par[1] = {0};
+	uint8_t par[1] = {0x00};
 	byte_t nr[4];
 	uint32_t nt, ntpp; // Supplied tag nonce
 	
 	uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
-	uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 	
 	// Transmit MIFARE_CLASSIC_AUTH
 	len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, receivedAnswerPar, timing);
@@ -210,7 +215,6 @@ int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockN
 	if (ntptr)
 		*ntptr = nt;
 
-		
 	// Generate (encrypted) nr+parity by loading it into the cipher (Nr)
 	par[0] = 0;
 	for (pos = 0; pos < 4; pos++)
@@ -258,8 +262,8 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo
 	int len;	
 	uint8_t	bt[2];
 	
-	uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 	
 	// command MIFARE_CLASSIC_READBLOCK
 	len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
@@ -283,30 +287,83 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo
 	return 0;
 }
 
+// mifare ultralight commands
+int mifare_ultra_auth1(uint32_t uid, uint8_t *blockData){
+
+	uint16_t len;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+	
+	len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
+	if (len == 1) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+		return 1;
+	}
+	if (len != 11)
+		return 1;
+
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+		Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+			receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
+			receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
+			receivedAnswer[10]);
+		}
+	memcpy(blockData, receivedAnswer, 11);
+	return 0;
+}
+
+int mifare_ultra_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){
+
+	uint16_t len;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+	
+	len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, key, receivedAnswer, receivedAnswerPar, NULL);
+	if (len == 1) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+		return 1;
+	}
+	if (len != 11)
+		return 1;	
+	
+	if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+		Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+			receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
+			receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
+			receivedAnswer[10]);
+	}
+	memcpy(blockData, receivedAnswer, 11);
+	return 0;
+}
+
 int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
 {
-	// variables
 	uint16_t len;
 	uint8_t	bt[2];
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 	
-	uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
-	
+	
 	// command MIFARE_CLASSIC_READBLOCK
 	len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer, receivedAnswerPar, NULL);
 	if (len == 1) {
-		if (MF_DBGLEVEL >= 1)	Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
 		return 1;
 	}
 	if (len != 18) {
-		if (MF_DBGLEVEL >= 1)	Dbprintf("Cmd Error: card timeout. len: %x", len);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Error: card timeout. len: %x", len);
 		return 2;
 	}
     
 	memcpy(bt, receivedAnswer + 16, 2);
 	AppendCrc14443a(receivedAnswer, 16);
 	if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
-		if (MF_DBGLEVEL >= 1)	Dbprintf("Cmd CRC response error.");
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd CRC response error.");
 		return 3;
 	}
 	
@@ -318,14 +375,14 @@ int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
 int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) 
 {
 	// variables
-	int len, i;	
+	uint16_t len, i;	
 	uint32_t pos;
 	uint8_t par[3] = {0};		// enough for 18 Bytes to send
 	byte_t res;
 	
 	uint8_t d_block[18], d_block_enc[18];
-	uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 	
 	// command MIFARE_CLASSIC_WRITEBLOCK
 	len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
@@ -364,76 +421,68 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
 
 int mifare_ultra_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData) 
 {
-    // variables
     uint16_t len;     
     uint8_t par[3] = {0};  // enough for 18 parity bits
-        
-    uint8_t d_block[18];
-    uint8_t* receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t* receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t d_block[18] = {0x00};
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
         
     // command MIFARE_CLASSIC_WRITEBLOCK
     len = mifare_sendcmd_short(NULL, true, 0xA0, blockNo, receivedAnswer, receivedAnswerPar, NULL);
 
     if ((len != 1) || (receivedAnswer[0] != 0x0A)) {   //  0x0a - ACK
-        if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);  
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);  
         return 1;
     }
 
-	memset(d_block,'\0',18);
 	memcpy(d_block, blockData, 16);
     AppendCrc14443a(d_block, 16);
 
 	ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);
 
-    // Receive the response
     len = ReaderReceive(receivedAnswer, receivedAnswerPar);    
 
 	if ((len != 1) || (receivedAnswer[0] != 0x0A)) {   //  0x0a - ACK
-        if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
         return 2;
     }        
-
     return 0;
 } 
 
 int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
 {
     uint16_t len;
-
-    uint8_t d_block[8];
-    uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t d_block[8] = {0x00};
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 
     // command MIFARE_CLASSIC_WRITEBLOCK
-	memset(d_block,'\0',8);
 	d_block[0]= blockNo;
 	memcpy(d_block+1,blockData,4);
 	AppendCrc14443a(d_block, 6);
 
-	//i know the data send here is correct
     len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer, receivedAnswerPar, NULL);
 
     if (receivedAnswer[0] != 0x0A) {   //  0x0a - ACK
-        if (MF_DBGLEVEL >= 1)   Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
         return 1;
     }
-
-    return 0;
+
    return 0;
 }
 
 int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid) 
 {
-	// variables
 	uint16_t len;	
-	
-	// Mifare HALT
-	uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
 
 	len = mifare_sendcmd_short(pcs, pcs == NULL ? false:true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
 	if (len != 0) {
-		if (MF_DBGLEVEL >= 1)	Dbprintf("halt error. response len: %x", len);  
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("halt error. response len: %x", len);  
 		return 1;
 	}
 
@@ -443,17 +492,15 @@ int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
 int mifare_ultra_halt(uint32_t uid)
 {
 	uint16_t len;
-	
-	// Mifare HALT
-	uint8_t *receivedAnswer = get_bigbufptr_recvrespbuf();
-	uint8_t *receivedAnswerPar = receivedAnswer + MAX_FRAME_SIZE;
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
     
 	len = mifare_sendcmd_short(NULL, true, 0x50, 0x00, receivedAnswer, receivedAnswerPar, NULL);
 	if (len != 0) {
-		if (MF_DBGLEVEL >= 1)	Dbprintf("halt error. response len: %x", len);
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("halt error. response len: %x", len);
 		return 1;
 	}
-    
 	return 0;
 }
 
@@ -480,25 +527,22 @@ uint8_t FirstBlockOfSector(uint8_t sectorNo)
 
 // work with emulator memory
 void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
-	
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	memcpy(emCARD + blockNum * 16, data, blocksCount * 16);
 }
 
 void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
-	
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	memcpy(data, emCARD + blockNum * 16, blocksCount * 16);
 }
 
 void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
-	
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	memcpy(data, emCARD + bytePtr, byteCount);
 }
 
 int emlCheckValBl(int blockNum) {
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	uint8_t* data = emCARD + blockNum * 16;
 
 	if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||
@@ -513,7 +557,7 @@ int emlCheckValBl(int blockNum) {
 }
 
 int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	uint8_t* data = emCARD + blockNum * 16;
 	
 	if (emlCheckValBl(blockNum)) {
@@ -522,12 +566,11 @@ int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {
 	
 	memcpy(blReg, data, 4);
 	*blBlock = data[12];
-	
 	return 0;
 }
 
 int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	uint8_t* data = emCARD + blockNum * 16;
 	
 	memcpy(data + 0, &blReg, 4);
@@ -545,7 +588,7 @@ int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {
 
 uint64_t emlGetKey(int sectorNum, int keyType) {
 	uint8_t key[6];
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	
 	memcpy(key, emCARD + 16 * (FirstBlockOfSector(sectorNum) + NumBlocksPerSector(sectorNum) - 1) + keyType * 10, 6);
 	return bytes_to_num(key, 6);
@@ -556,7 +599,7 @@ void emlClearMem(void) {
 	
 	const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	const uint8_t uid[]   =   {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};
-	uint8_t* emCARD = get_bigbufptr_emlcardmem();
+	uint8_t* emCARD = BigBuf_get_EM_addr();
 	
 	memset(emCARD, 0, CARD_MEMORY_SIZE);
 	
@@ -569,3 +612,98 @@ void emlClearMem(void) {
 	emlSetMem((uint8_t *)uid, 0, 1);
 	return;
 }
+
+
+// Mifare desfire commands
+int mifare_sendcmd_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *answer_parity, uint32_t *timing)
+{
+    uint8_t dcmd[5] = {0x00};
+    dcmd[0] = cmd;
+    memcpy(dcmd+1,data,2);
+	AppendCrc14443a(dcmd, 3);
+	
+	ReaderTransmit(dcmd, sizeof(dcmd), NULL);
+	int len = ReaderReceive(answer, answer_parity);
+	if(!len) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR) 
+			Dbprintf("Authentication failed. Card timeout.");
+		return 1;
+    }
+	return len;
+}
+
+int mifare_sendcmd_special2(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer,uint8_t *answer_parity, uint32_t *timing)
+{
+    uint8_t dcmd[20] = {0x00};
+    dcmd[0] = cmd;
+    memcpy(dcmd+1,data,17);
+	AppendCrc14443a(dcmd, 18);
+
+	ReaderTransmit(dcmd, sizeof(dcmd), NULL);
+	int len = ReaderReceive(answer, answer_parity);
+	if(!len){
+        if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Authentication failed. Card timeout.");
+		return 1;
+    }
+	return len;
+}
+
+int mifare_desfire_des_auth1(uint32_t uid, uint8_t *blockData){
+
+	int len;
+	// load key, keynumber
+	uint8_t data[2]={0x0a, 0x00};
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+	
+	len = mifare_sendcmd_special(NULL, 1, 0x02, data, receivedAnswer,receivedAnswerPar,NULL);
+	if (len == 1) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+		return 1;
+	}
+	
+	if (len == 12) {
+		if (MF_DBGLEVEL >= MF_DBG_EXTENDED)	{
+			Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+				receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
+				receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
+				receivedAnswer[10],receivedAnswer[11]);
+			}
+			memcpy(blockData, receivedAnswer, 12);
+	        return 0;
+	}
+	return 1;
+}
+
+int mifare_desfire_des_auth2(uint32_t uid, uint8_t *key, uint8_t *blockData){
+
+	int len;
+	uint8_t data[17] = {0x00};
+	data[0] = 0xAF;
+	memcpy(data+1,key,16);
+	
+	uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];
+	uint8_t receivedAnswerPar[MAX_MIFARE_PARITY_SIZE];
+	
+	len = mifare_sendcmd_special2(NULL, 1, 0x03, data, receivedAnswer, receivedAnswerPar ,NULL);
+	
+	if ((receivedAnswer[0] == 0x03) && (receivedAnswer[1] == 0xae)) {
+		if (MF_DBGLEVEL >= MF_DBG_ERROR)
+			Dbprintf("Auth Error: %02x %02x", receivedAnswer[0], receivedAnswer[1]);
+		return 1;
+	}
+	
+	if (len == 12){
+		if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+			Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
+				receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],
+				receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],
+				receivedAnswer[10],receivedAnswer[11]);
+			}
+		memcpy(blockData, receivedAnswer, 12);
+		return 0;
+	}
+	return 1;
+}