X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/8db0534ed1647ff3b17cff63bf0dc1bdbaf039ed..aa53efc340d9f2dc382e4bb98d49bede5a18e920:/client/cmdhficlass.c

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index 6c92893a..db3de205 100644
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -29,9 +29,30 @@
 #include "loclass/ikeys.h"
 #include "loclass/elite_crack.h"
 #include "loclass/fileutils.h"
+#include "protocols.h"
+#include "usb_cmd.h"
+#include "cmdhfmfu.h"
+
+#define llX PRIx64
 
 static int CmdHelp(const char *Cmd);
 
+#define ICLASS_KEYS_MAX 8
+static uint8_t iClass_Key_Table[ICLASS_KEYS_MAX][8] = {
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
+		{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }
+};
+
+typedef struct iclass_block {
+    uint8_t d[8];
+} iclass_block_t;
+
 int xorbits_8(uint8_t val)
 {
 	uint8_t res = val ^ (val >> 1); //1st pass
@@ -53,6 +74,21 @@ int CmdHFiClassSnoop(const char *Cmd)
 	SendCommand(&c);
 	return 0;
 }
+int usage_hf_iclass_sim()
+{
+	PrintAndLog("Usage:  hf iclass sim <option> [CSN]");
+	PrintAndLog("        options");
+	PrintAndLog("                0 <CSN> simulate the given CSN");
+	PrintAndLog("                1       simulate default CSN");
+	PrintAndLog("                2       Reader-attack, gather reader responses to extract elite key");
+	PrintAndLog("                3       Full simulation using emulator memory (see 'hf iclass eload')");
+	PrintAndLog("        example: hf iclass sim 0 031FEC8AF7FF12E0");
+	PrintAndLog("        example: hf iclass sim 2");
+	PrintAndLog("        example: hf iclass eload 'tagdump.bin'");
+	PrintAndLog("                 hf iclass sim 3");
+	return 0;
+}
+
 #define NUM_CSNS 15
 int CmdHFiClassSim(const char *Cmd)
 {
@@ -60,50 +96,31 @@ int CmdHFiClassSim(const char *Cmd)
 	uint8_t CSN[8] = {0, 0, 0, 0, 0, 0, 0, 0};
 
 	if (strlen(Cmd)<1) {
-		PrintAndLog("Usage:  hf iclass sim [0 <CSN>] | x");
-		PrintAndLog("        options");
-		PrintAndLog("                0 <CSN> simulate the given CSN");
-		PrintAndLog("                1       simulate default CSN");
-		PrintAndLog("                2       iterate CSNs, gather MACs");
-		PrintAndLog("        sample: hf iclass sim 0 031FEC8AF7FF12E0");
-		PrintAndLog("        sample: hf iclass sim 2");
-		return 0;
+		return usage_hf_iclass_sim();
 	}
-
-	simType = param_get8(Cmd, 0);
+	simType = param_get8ex(Cmd, 0, 0, 10);
 
 	if(simType == 0)
 	{
 		if (param_gethex(Cmd, 1, CSN, 16)) {
 			PrintAndLog("A CSN should consist of 16 HEX symbols");
-			return 1;
+			return usage_hf_iclass_sim();
 		}
-		PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
 
+		PrintAndLog("--simtype:%02x csn:%s", simType, sprint_hex(CSN, 8));
 	}
-	if(simType > 2)
+	if(simType > 3)
 	{
 		PrintAndLog("Undefined simptype %d", simType);
-		return 1;
+		return usage_hf_iclass_sim();
 	}
-	uint8_t numberOfCSNs=0;
 
+	uint8_t numberOfCSNs=0;
 	if(simType == 2)
 	{
 		UsbCommand c = {CMD_SIMULATE_TAG_ICLASS, {simType,NUM_CSNS}};
 		UsbCommand resp = {0};
 
-		/*uint8_t csns[8 * NUM_CSNS] = {
-			 0x00,0x0B,0x0F,0xFF,0xF7,0xFF,0x12,0xE0 ,
-			 0x00,0x13,0x94,0x7e,0x76,0xff,0x12,0xe0 ,
-			 0x2a,0x99,0xac,0x79,0xec,0xff,0x12,0xe0 ,
-			 0x17,0x12,0x01,0xfd,0xf7,0xff,0x12,0xe0 ,
-			 0xcd,0x56,0x01,0x7c,0x6f,0xff,0x12,0xe0 ,
-			 0x4b,0x5e,0x0b,0x72,0xef,0xff,0x12,0xe0 ,
-			 0x00,0x73,0xd8,0x75,0x58,0xff,0x12,0xe0 ,
-			 0x0c,0x90,0x32,0xf3,0x5d,0xff,0x12,0xe0 };
-*/
-
 		uint8_t csns[8*NUM_CSNS] = {
 			0x00, 0x0B, 0x0F, 0xFF, 0xF7, 0xFF, 0x12, 0xE0,
 			0x00, 0x04, 0x0E, 0x08, 0xF7, 0xFF, 0x12, 0xE0,
@@ -167,40 +184,49 @@ int CmdHFiClassSim(const char *Cmd)
 	return 0;
 }
 
-int CmdHFiClassReader(const char *Cmd)
+int HFiClassReader(const char *Cmd, bool loop, bool verbose)
 {
-	UsbCommand c = {CMD_READER_ICLASS, {0}};
-	SendCommand(&c);
+	bool tagFound = false;
+	UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN|
+					FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_AA}};
+	// loop in client not device - else on windows have a communication error
+	c.arg[0] |= FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY;
 	UsbCommand resp;
 	while(!ukbhit()){
-		if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
-			uint8_t isOK    = resp.arg[0] & 0xff;
-			uint8_t * data  = resp.d.asBytes;
+		SendCommand(&c);
+		if (WaitForResponseTimeout(CMD_ACK,&resp, 4500)) {
+			uint8_t readStatus = resp.arg[0] & 0xff;
+			uint8_t *data = resp.d.asBytes;
 
-			PrintAndLog("isOk:%02x", isOK);
-			if( isOK == 0){
+			if (verbose)
+				PrintAndLog("Readstatus:%02x", readStatus);
+			if( readStatus == 0){
 				//Aborted
-				PrintAndLog("Quitting...");
+				if (verbose) PrintAndLog("Quitting...");
 				return 0;
 			}
-			if(isOK > 0)
-			{
+			if( readStatus & FLAG_ICLASS_READER_CSN){
 				PrintAndLog("CSN: %s",sprint_hex(data,8));
+				tagFound = true;
 			}
-			if(isOK >= 1)
-			{
-				PrintAndLog("CC: %s",sprint_hex(data+8,8));
-			}else{
-				PrintAndLog("No CC obtained");
+			if( readStatus & FLAG_ICLASS_READER_CC)  PrintAndLog("CC: %s",sprint_hex(data+16,8));
+			if( readStatus & FLAG_ICLASS_READER_CONF){
+				printIclassDumpInfo(data);
 			}
+			if (tagFound && !loop) return 1;
 		} else {
-			PrintAndLog("Command execute timeout");
+			if (verbose) PrintAndLog("Command execute timeout");
 		}
+		if (!loop) break;
 	}
-
 	return 0;
 }
 
+int CmdHFiClassReader(const char *Cmd)
+{
+	return HFiClassReader(Cmd, true, true);
+}
+
 int CmdHFiClassReader_Replay(const char *Cmd)
 {
 	uint8_t readerType = 0;
@@ -224,161 +250,6 @@ int CmdHFiClassReader_Replay(const char *Cmd)
 	return 0;
 }
 
-int CmdHFiClassReader_Dump(const char *Cmd)
-{
-	uint8_t readerType = 0;
-	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
-	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	//uint8_t CC_temp[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t keytable[128] = {0};
-	int elite = 0;
-	uint8_t *used_key;
-	int i;
-	if (strlen(Cmd)<1)
-	{
-		PrintAndLog("Usage:  hf iclass dump <Key> [e]");
-		PrintAndLog("        Key    - A 16 byte master key");
-		PrintAndLog("        e      - If 'e' is specified, the key is interpreted as the 16 byte");
-		PrintAndLog("                 Custom Key (KCus), which can be obtained via reader-attack");
-		PrintAndLog("                 See 'hf iclass sim 2'. This key should be on iclass-format");
-		PrintAndLog("        sample: hf iclass dump 0011223344556677");
-
-
-		return 0;
-	}
-
-	if (param_gethex(Cmd, 0, KEY, 16))
-	{
-		PrintAndLog("KEY must include 16 HEX symbols");
-		return 1;
-	}
-
-	if (param_getchar(Cmd, 1) == 'e')
-	{
-		PrintAndLog("Elite switch on");
-		elite = 1;
-
-		//calc h2
-		hash2(KEY, keytable);
-		printarr_human_readable("keytable", keytable, 128);
-
-	}
-
-	UsbCommand resp;
-	uint8_t key_sel[8] = {0};
-	uint8_t key_sel_p[8] = { 0 };
-
-	UsbCommand c = {CMD_READER_ICLASS, {0}};
-	c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_GET_CC;
-	SendCommand(&c);
-
-
-
-	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
-	{
-		PrintAndLog("Command execute timeout");
-		return 0;
-	}
-
-	uint8_t isOK    = resp.arg[0] & 0xff;
-	uint8_t * data  = resp.d.asBytes;
-
-	memcpy(CSN,data,8);
-	memcpy(CCNR,data+8,8);
-
-	PrintAndLog("isOk:%02x", isOK);
-
-	if(isOK > 0)
-	{
-		PrintAndLog("CSN: %s",sprint_hex(CSN,8));
-	}
-	if(isOK <= 1){
-		PrintAndLog("Failed to obtain CC! Aborting");
-		return 0;
-	}
-	//Status 2 or higher
-
-	if(elite)
-	{
-		//Get the key index (hash1)
-		uint8_t key_index[8] = {0};
-
-		hash1(CSN, key_index);
-		printvar("hash1", key_index,8);
-		for(i = 0; i < 8 ; i++)
-			key_sel[i] = keytable[key_index[i]] & 0xFF;
-		PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
-		printvar("k_sel", key_sel,8);
-		//Permute from iclass format to standard format
-		permutekey_rev(key_sel,key_sel_p);
-		used_key = key_sel_p;
-	}else{
-		used_key = KEY;
-	}
-
-	PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
-	printvar("Used key",used_key,8);
-	diversifyKey(CSN,used_key, div_key);
-	PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
-	printvar("Div key", div_key, 8);
-	printvar("CC_NR:",CCNR,12);
-	doMAC(CCNR,12,div_key, MAC);
-	printvar("MAC", MAC, 4);
-
-	uint8_t iclass_data[32000] = {0};
-	uint32_t iclass_datalen = 0;
-	uint32_t iclass_blocksFailed = 0;//Set to 1 if dump was incomplete
-
-	UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
-	memcpy(d.d.asBytes, MAC, 4);
-	clearCommandBuffer();
-	SendCommand(&d);
-	PrintAndLog("Waiting for device to dump data. Press button on device and key on keyboard to abort...");
-	while (true) {
-		printf(".");
-		if (ukbhit()) {
-			getchar();
-			printf("\naborted via keyboard!\n");
-			break;
-		}
-		if(WaitForResponseTimeout(CMD_ACK,&resp,4500))
-		{
-			uint32_t dataLength = resp.arg[0];
-			iclass_blocksFailed |= resp.arg[1];
-			if(dataLength > 0)
-			{
-				PrintAndLog("Got %d bytes data (total so far %d)" ,dataLength,iclass_datalen);
-				memcpy(iclass_data, resp.d.asBytes,dataLength);
-				iclass_datalen += dataLength;
-			}else
-			{//Last transfer, datalength 0 means the dump is finished
-				PrintAndLog("Dumped %d bytes of data from tag. ", iclass_datalen);
-				if(iclass_blocksFailed)
-				{
-					PrintAndLog("OBS! Some blocks failed to be dumped correctly!");
-				}
-				if(iclass_datalen > 0)
-				{
-					char filename[100] = {0};
-					//create a preferred filename
-					snprintf(filename, 100,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
-							 CSN[0],CSN[1],CSN[2],CSN[3],
-							CSN[4],CSN[5],CSN[6],CSN[7]);
-					saveFile(filename,"bin",iclass_data, iclass_datalen );
-				}
-				//Aaaand we're finished
-				return 0;
-			}
-		}
-	}
-
-
-	return 0;
-}
-
 int hf_iclass_eload_usage()
 {
 	PrintAndLog("Loads iclass tag-dump into emulator memory on device");
@@ -386,7 +257,6 @@ int hf_iclass_eload_usage()
 	PrintAndLog("");
 	PrintAndLog("Example: hf iclass eload f iclass_tagdump-aa162d30f8ff12f1.bin");
 	return 0;
-
 }
 
 int iclassEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
@@ -422,9 +292,12 @@ int CmdHFiClassELoad(const char *Cmd)
 	fseek(f, 0, SEEK_SET);
 
 	uint8_t *dump = malloc(fsize);
+
+
 	size_t bytes_read = fread(dump, 1, fsize, f);
 	fclose(f);
 
+	printIclassDumpInfo(dump);
 	//Validate
 
 	if (bytes_read < fsize)
@@ -450,85 +323,1078 @@ int CmdHFiClassELoad(const char *Cmd)
 	return 0;
 }
 
-
-int CmdHFiClass_iso14443A_write(const char *Cmd)
+int readKeyfile(const char *filename, size_t len, uint8_t* buffer)
 {
-	uint8_t readerType = 0;
-	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
-	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
-	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	FILE *f = fopen(filename, "rb");
+	if(!f) {
+		PrintAndLog("Failed to read from file '%s'", filename);
+		return 1;
+	}
+	fseek(f, 0, SEEK_END);
+	long fsize = ftell(f);
+	fseek(f, 0, SEEK_SET);
+	size_t bytes_read = fread(buffer, 1, len, f);
+	fclose(f);
+	if(fsize != len)
+	{
+		PrintAndLog("Warning, file size is %d, expected %d", fsize, len);
+		return 1;
+	}
+	if(bytes_read != len)
+	{
+		PrintAndLog("Warning, could only read %d bytes, expected %d" ,bytes_read, len);
+		return 1;
+	}
+	return 0;
+}
 
-	uint8_t blockNo=0;
-	uint8_t bldata[8]={0};
+int usage_hf_iclass_decrypt()
+{
+	PrintAndLog("Usage: hf iclass decrypt f <tagdump> o ");
+	PrintAndLog("");
+	PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
+	PrintAndLog("in the working directory. The file should be 16 bytes binary data");
+	PrintAndLog("");
+	PrintAndLog("example: hf iclass decrypt f tagdump_12312342343.bin");
+	PrintAndLog("");
+	PrintAndLog("OBS! This is pretty stupid implementation, it tries to decrypt every block after block 6. ");
+	PrintAndLog("Correct behaviour would be to decrypt only the application areas where the key is valid,");
+	PrintAndLog("which is defined by the configuration block.");
+	return 1;
+}
 
-	if (strlen(Cmd)<3)
+int CmdHFiClassDecrypt(const char *Cmd)
+{
+	uint8_t key[16] = { 0 };
+	if(readKeyfile("iclass_decryptionkey.bin", 16, key))
 	{
-		PrintAndLog("Usage:  hf iclass write <Key> <Block> <Data>");
-		PrintAndLog("        sample: hf iclass write 0011223344556677 10 AAAAAAAAAAAAAAAA");
-		return 0;
+		usage_hf_iclass_decrypt();
+		return 1;
 	}
+	PrintAndLog("Decryption file found... ");
+	char opt = param_getchar(Cmd, 0);
+	if (strlen(Cmd)<1 || opt == 'h')
+		return usage_hf_iclass_decrypt();
 
-	if (param_gethex(Cmd, 0, KEY, 16))
+	//Open the tagdump-file
+	FILE *f;
+	char filename[FILE_PATH_SIZE];
+	if(opt == 'f' && param_getstr(Cmd, 1, filename) > 0)
 	{
-		PrintAndLog("KEY must include 16 HEX symbols");
-		return 1;
+		f = fopen(filename, "rb");
+	}else{
+		return usage_hf_iclass_decrypt();
 	}
 
-	blockNo = param_get8(Cmd, 1);
-	if (blockNo>32)
+	fseek(f, 0, SEEK_END);
+	long fsize = ftell(f);
+	fseek(f, 0, SEEK_SET);
+	uint8_t enc_dump[8] = {0};
+	uint8_t *decrypted = malloc(fsize);
+	des3_context ctx = { DES_DECRYPT ,{ 0 } };
+	des3_set2key_dec( &ctx, key);
+	size_t bytes_read = fread(enc_dump, 1, 8, f);
+
+	//Use the first block (CSN) for filename
+	char outfilename[FILE_PATH_SIZE] = { 0 };
+	snprintf(outfilename,FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x-decrypted",
+			 enc_dump[0],enc_dump[1],enc_dump[2],enc_dump[3],
+			 enc_dump[4],enc_dump[5],enc_dump[6],enc_dump[7]);
+
+	size_t blocknum =0;
+	while(bytes_read == 8)
 	{
-		PrintAndLog("Error: Maximum number of blocks is 32 for iClass 2K Cards!");
-		return 1;
+		if(blocknum < 7)
+		{
+			memcpy(decrypted+(blocknum*8), enc_dump, 8);
+		}else{
+			des3_crypt_ecb(&ctx, enc_dump,decrypted +(blocknum*8) );
+		}
+		printvar("decrypted block", decrypted +(blocknum*8), 8);
+		bytes_read = fread(enc_dump, 1, 8, f);
+		blocknum++;
 	}
-	if (param_gethex(Cmd, 2, bldata, 8))
+	fclose(f);
+
+	saveFile(outfilename,"bin", decrypted, blocknum*8);
+
+	return 0;
+}
+
+int usage_hf_iclass_encrypt(){
+	PrintAndLog("Usage: hf iclass encrypt <BlockData>");
+	PrintAndLog("");
+	PrintAndLog("OBS! In order to use this function, the file 'iclass_decryptionkey.bin' must reside");
+	PrintAndLog("in the working directory. The file should be 16 bytes binary data");
+	PrintAndLog("");
+	PrintAndLog("example: hf iclass encrypt 0102030405060708");
+	PrintAndLog("");
+	return 0;
+}
+
+int iClassEncryptBlkData(uint8_t *blkData)
+{
+	uint8_t key[16] = { 0 };
+	if(readKeyfile("iclass_decryptionkey.bin", 16, key))
 	{
-		PrintAndLog("Block data must include 8 HEX symbols");
+		usage_hf_iclass_encrypt();
 		return 1;
 	}
+	PrintAndLog("Decryption file found... ");
+
+	uint8_t decryptedData[16];
+	uint8_t *decrypted = decryptedData;
+	des3_context ctx = { DES_DECRYPT ,{ 0 } };
+	des3_set2key_enc( &ctx, key);
+	
+	des3_crypt_ecb(&ctx, blkData,decrypted);
+	//printvar("decrypted block", decrypted, 8);
+	memcpy(blkData,decrypted,8);
+
+	return 1;
+}
 
-	UsbCommand c = {CMD_ICLASS_ISO14443A_WRITE, {0}};
-	SendCommand(&c);
-	UsbCommand resp;
-
-	if (WaitForResponseTimeout(CMD_ACK,&resp,4500)) {
-		uint8_t isOK    = resp.arg[0] & 0xff;
-		uint8_t * data  = resp.d.asBytes;
+int CmdHFiClassEncryptBlk(const char *Cmd)
+{
+	uint8_t blkData[8] = {0};
+	char opt = param_getchar(Cmd, 0);
+	if (strlen(Cmd)<1 || opt == 'h')
+		return usage_hf_iclass_encrypt();
 
-		memcpy(CSN,data,8);
-		memcpy(CCNR,data+8,8);
-		PrintAndLog("DEBUG: %s",sprint_hex(CSN,8));
-		PrintAndLog("DEBUG: %s",sprint_hex(CCNR,8));
-		PrintAndLog("isOk:%02x", isOK);
-	} else {
-		PrintAndLog("Command execute timeout");
+	//get the bytes to encrypt
+	if (param_gethex(Cmd, 0, blkData, 16))
+	{
+		PrintAndLog("BlockData must include 16 HEX symbols");
+		return 0;
 	}
+	if (!iClassEncryptBlkData(blkData)) return 0;
 
-	diversifyKey(CSN,KEY, div_key);
+	printvar("encrypted block", blkData, 8);
+	return 1;
+}
 
-	PrintAndLog("Div Key: %s",sprint_hex(div_key,8));
-	doMAC(CCNR, 12,div_key, MAC);
+void Calc_wb_mac(uint8_t blockno,uint8_t *data,uint8_t *div_key,uint8_t MAC[4]){
+	uint8_t WB[9];
+	WB[0] = blockno;
+	memcpy(WB + 1,data,8);
+	doMAC_N(WB,sizeof(WB),div_key,MAC);
+	//printf("Cal wb mac block [%02x][%02x%02x%02x%02x%02x%02x%02x%02x] : MAC [%02x%02x%02x%02x]",WB[0],WB[1],WB[2],WB[3],WB[4],WB[5],WB[6],WB[7],WB[8],MAC[0],MAC[1],MAC[2],MAC[3]);
+}
 
-	UsbCommand c2 = {CMD_ICLASS_ISO14443A_WRITE, {readerType,blockNo}};
-	memcpy(c2.d.asBytes, bldata, 8);
-	memcpy(c2.d.asBytes+8, MAC, 4);
-	SendCommand(&c2);
+static bool select_only(uint8_t *CSN, uint8_t *CCNR, bool use_credit_key, bool verbose){
+	UsbCommand resp;
 
-	if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
-		uint8_t isOK    = resp.arg[0] & 0xff;
-		uint8_t * data  = resp.d.asBytes;
+	UsbCommand c = {CMD_READER_ICLASS, {0}};
+	c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_CC;
+	if (use_credit_key)
+		c.arg[0] |= FLAG_ICLASS_READER_CEDITKEY;
 
-		if (isOK)
-			PrintAndLog("isOk:%02x data:%s", isOK, sprint_hex(data, 4));
-		else
-			PrintAndLog("isOk:%02x", isOK);
-	} else {
+	clearCommandBuffer();
+	SendCommand(&c);
+	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+	{
 		PrintAndLog("Command execute timeout");
+		return false;
 	}
-	return 0;
-}
-int CmdHFiClass_loclass(const char *Cmd)
+
+	uint8_t isOK = resp.arg[0] & 0xff;
+	uint8_t *data = resp.d.asBytes;
+
+	memcpy(CSN,data,8);
+	if (CCNR!=NULL)memcpy(CCNR,data+16,8);
+	//PrintAndLog("isOk:%02x", isOK);
+	if(isOK > 0)
+	{
+		if (verbose) PrintAndLog("CSN: %s",sprint_hex(CSN,8));
+	}
+	if(isOK <= 1){
+		PrintAndLog("Failed to obtain CC! Aborting");
+		return false;
+	}
+	return true;	
+}
+
+static bool select_and_auth(uint8_t *KEY, uint8_t *MAC, uint8_t *div_key, bool use_credit_key, bool elite, bool verbose) {
+	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keytable[128] = {0};
+	uint8_t *used_key;
+	uint8_t key_sel[8] = {0};
+	uint8_t key_sel_p[8] = { 0 };
+
+	if (!select_only(CSN, CCNR, use_credit_key, verbose))
+		return false;
+
+	if(elite) {
+		hash2(KEY, keytable);
+		//Get the key index (hash1)
+		uint8_t key_index[8] = {0};
+		hash1(CSN, key_index);
+		//printvar("hash1", key_index,8);
+		for(uint8_t i = 0; i < 8 ; i++)
+			key_sel[i] = keytable[key_index[i]] & 0xFF;
+		//PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
+		//printvar("k_sel", key_sel,8);
+		//Permute from iclass format to standard format
+		permutekey_rev(key_sel, key_sel_p);
+		used_key = key_sel_p;
+	} else {
+		used_key = KEY;
+	}
+	//PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
+	//printvar("Used key",KEY,8);
+	diversifyKey(CSN, used_key, div_key);
+	//PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
+	//printvar("Div key", div_key, 8);
+	//printvar("CC_NR:",CCNR,8);
+	doMAC(CCNR, div_key, MAC);
+	//printvar("MAC", MAC, 4);
+	UsbCommand resp;
+	UsbCommand d = {CMD_ICLASS_AUTHENTICATION, {0}};
+	memcpy(d.d.asBytes, MAC, 4);
+	clearCommandBuffer();
+	SendCommand(&d);
+	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+	{
+		PrintAndLog("Auth Command execute timeout");
+		return false;
+	}
+	uint8_t isOK = resp.arg[0] & 0xff;
+	if (!isOK) {
+		PrintAndLog("Authentication error");
+		return false;
+	}
+	return true;
+}
+
+int usage_hf_iclass_dump(){
+	PrintAndLog("Usage:  hf iclass dump f <fileName> k <Key> c <CreditKey> e\n");
+	PrintAndLog("Options:");
+	PrintAndLog("  f <filename> : specify a filename to save dump to");
+	PrintAndLog("  k <Key>      : *Access Key as 16 hex symbols or 1 hex to select key from memory");
+	PrintAndLog("  c <CreditKey>: Credit Key as 16 hex symbols or 1 hex to select key from memory");
+	PrintAndLog("  e            : If 'e' is specified, the key is interpreted as the 16 byte");
+	PrintAndLog("                 Custom Key (KCus), which can be obtained via reader-attack");
+	PrintAndLog("                 See 'hf iclass sim 2'. This key should be on iclass-format");
+	PrintAndLog("  NOTE: * = required");
+  PrintAndLog("Samples:");
+	PrintAndLog("  hf iclass dump k 001122334455667B");
+	PrintAndLog("  hf iclass dump k AAAAAAAAAAAAAAAA c 001122334455667B");
+	PrintAndLog("  hf iclass dump k AAAAAAAAAAAAAAAA e");
+	return 0;
+}
+
+int CmdHFiClassReader_Dump(const char *Cmd){
+
+	uint8_t MAC[4] = {0x00,0x00,0x00,0x00};
+	uint8_t div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t c_div_key[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t blockno = 0;
+	uint8_t numblks = 0;
+	uint8_t maxBlk = 32;
+	uint8_t KEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t CreditKEY[8] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keyNbr = 0;
+	uint8_t dataLen = 0;
+	uint8_t fileNameLen = 0;
+	char filename[FILE_PATH_SIZE]={0};
+	char tempStr[50] = {0};
+	bool have_credit_key = false;
+	bool elite = false;
+	bool errors = false;
+	uint8_t cmdp = 0;
+
+	while(param_getchar(Cmd, cmdp) != 0x00)
+	{
+		switch(param_getchar(Cmd, cmdp))
+		{
+		case 'h':
+		case 'H':
+			return usage_hf_iclass_dump();
+		case 'c':
+		case 'C':
+			have_credit_key = true;
+			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+			if (dataLen == 16) {
+				errors = param_gethex(tempStr, 0, CreditKEY, dataLen);
+			} else if (dataLen == 1) {
+				keyNbr = param_get8(Cmd, cmdp+1);
+				if (keyNbr <= ICLASS_KEYS_MAX) {
+					memcpy(CreditKEY, iClass_Key_Table[keyNbr], 8);
+				} else {
+					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+					errors = true;
+				}
+			} else {
+				PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'e':
+		case 'E':
+			elite = true;
+			cmdp++;
+			break;
+		case 'f':
+		case 'F':
+			fileNameLen = param_getstr(Cmd, cmdp+1, filename); 
+			if (fileNameLen < 1) {
+				PrintAndLog("No filename found after f");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'k':
+		case 'K':
+			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+			if (dataLen == 16) { 
+				errors = param_gethex(tempStr, 0, KEY, dataLen);
+			} else if (dataLen == 1) {
+				keyNbr = param_get8(Cmd, cmdp+1);
+				if (keyNbr <= ICLASS_KEYS_MAX) {
+					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+				} else {
+					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+					errors = true;
+				}
+			} else {
+				PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		default:
+			PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+			errors = true;
+			break;
+		}
+		if(errors) return usage_hf_iclass_dump();
+	}
+
+	if (cmdp < 2) return usage_hf_iclass_dump();
+
+	//get config and first 3 blocks
+	UsbCommand c = {CMD_READER_ICLASS, {FLAG_ICLASS_READER_CSN |
+					FLAG_ICLASS_READER_CONF | FLAG_ICLASS_READER_ONLY_ONCE | FLAG_ICLASS_READER_ONE_TRY}};
+	UsbCommand resp;
+	uint8_t tag_data[255*8];
+	clearCommandBuffer();
+	SendCommand(&c);
+	if (WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
+		uint8_t readStatus = resp.arg[0] & 0xff;
+		uint8_t *data = resp.d.asBytes;
+
+		if( readStatus == 0){
+			//Aborted
+			PrintAndLog("No tag found...");
+			return 0;
+		}
+		if( readStatus & (FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_CC)){
+			memcpy(tag_data, data, 8*3);
+			/*for (; blockno < 3; blockno++) {
+				PrintAndLog("     | %02X | %02X%02X%02X%02X%02X%02X%02X%02X |", blockno,
+					data[(blockno*8)+0],data[(blockno*8)+1],data[(blockno*8)+2],data[(blockno*8)+3],
+					data[(blockno*8)+4],data[(blockno*8)+5],data[(blockno*8)+6],data[(blockno*8)+7]);
+			}*/
+			blockno+=2;
+			numblks = data[8];
+
+			if (data[13] & 0x80) {
+				// large memory - not able to dump pages currently
+				maxBlk = 255;
+			}	else {
+				maxBlk = 32;
+			}
+			//PrintAndLog("maxBlk: %02X",maxBlk);
+		}
+	} else {
+		PrintAndLog("Command execute timeout");
+		return 0;
+	}
+
+	if (!select_and_auth(KEY, MAC, div_key, false, elite, false)){
+		//try twice - for some reason it sometimes fails the first time...
+		if (!select_and_auth(KEY, MAC, div_key, false, elite, false)){
+			ul_switch_off_field();
+			return 0;
+		}
+	}
+	//print debit div_key
+	//PrintAndLog("     | 03 | %02X%02X%02X%02X%02X%02X%02X%02X |",
+	//	div_key[0],div_key[1],div_key[2],div_key[3],
+	//	div_key[4],div_key[5],div_key[6],div_key[7]);
+	
+	if (have_credit_key){
+		//turn off hf field
+		//PrintAndLog("attempt 1 to auth with credit key");
+		ul_switch_off_field();
+		memset(c_div_key,0,8);
+		memset(MAC,0,4);
+		if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false)){
+			//try twice - for some reason it sometimes fails the first time...
+			memset(c_div_key,0,8);
+			memset(MAC,0,4);
+			if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false)){
+				ul_switch_off_field();
+				return 0;
+			}
+		}
+		//print credit div_key
+		//PrintAndLog("     | 04 | %02X%02X%02X%02X%02X%02X%02X%02X |",
+		//	div_key[0],div_key[1],div_key[2],div_key[3],
+		//	div_key[4],div_key[5],div_key[6],div_key[7]);
+	
+		//turn off hf field
+		//PrintAndLog("attempt 2 to auth with debit key");
+		ul_switch_off_field();
+		memset(div_key,0,8);
+		memset(MAC,0,4);
+		if (!select_and_auth(KEY, MAC, div_key, false, elite, false)){
+			//try twice - for some reason it sometimes fails the first time...
+			if (!select_and_auth(KEY, MAC, div_key, false, elite, false)){
+				ul_switch_off_field();
+				return 0;
+			}
+		}
+	}
+	//PrintAndLog("have %d blocks",blockno);
+
+	UsbCommand w = {CMD_ICLASS_DUMP, {blockno, numblks-blockno+1, 0x88}};
+	clearCommandBuffer();
+	SendCommand(&w);
+	if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
+		PrintAndLog("Command execute time-out 1");
+		return 1;
+	}
+	uint32_t blocksRead = resp.arg[1];
+	uint8_t isOK = resp.arg[0] & 0xff;
+	if (!isOK && !blocksRead) {
+		PrintAndLog("Read Block Failed");
+		return 0;
+	}
+	uint32_t startindex = resp.arg[2];
+	if (blocksRead*8 > sizeof(tag_data)-(blockno*8)) {
+		PrintAndLog("Data exceeded Buffer size!");
+		blocksRead = (sizeof(tag_data)/8) - blockno;
+	}
+	//PrintAndLog("blocksread: %d, blockno: %d, startindex: %x",blocksRead,blockno,startindex);
+	GetFromBigBuf(tag_data+(blockno*8), blocksRead*8, startindex);
+	WaitForResponse(CMD_ACK,NULL);
+	uint32_t gotBytes = blocksRead*8 + blockno*8;
+
+	//PrintAndLog("have %d blocks",gotBytes/8);
+	
+	if (have_credit_key && maxBlk > blockno+numblks+1) {
+		//turn off hf field
+		ul_switch_off_field();
+		//PrintAndLog("attempt 2 to auth with credit key");
+		memset(c_div_key,0,8);
+		memset(MAC,0,4);
+		if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false)){
+			//try twice - for some reason it sometimes fails the first time...
+			if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false)){
+				ul_switch_off_field();
+				return 0;
+			}
+		}
+		w.arg[0] = blockno + blocksRead;
+		w.arg[1] = maxBlk - (blockno + blocksRead);
+		w.arg[2] = 0x18;
+		clearCommandBuffer();
+		SendCommand(&w);
+		if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
+			PrintAndLog("Command execute timeout 2");
+			return 0;
+		}
+		uint8_t isOK = resp.arg[0] & 0xff;
+		blocksRead = resp.arg[1];
+		if (!isOK && !blocksRead) {
+			PrintAndLog("Read Block Failed 2");
+			return 0;
+		}		
+
+		startindex = resp.arg[2];
+		if (blocksRead*8 > sizeof(tag_data)-gotBytes) {
+			PrintAndLog("Data exceeded Buffer size!");
+			blocksRead = (sizeof(tag_data) - gotBytes)/8;
+		}
+		GetFromBigBuf(tag_data+gotBytes, blocksRead*8, startindex);
+		WaitForResponse(CMD_ACK,NULL);
+
+		gotBytes += blocksRead*8;
+		//PrintAndLog("have %d blocks",gotBytes/8);
+	}
+
+	memcpy(tag_data+(3*8),div_key,8);
+	memcpy(tag_data+(4*8),c_div_key,8);
+
+	for (blockno = 0; blockno < gotBytes/8; blockno++){
+		PrintAndLog("     | %02X | %02X%02X%02X%02X%02X%02X%02X%02X |", blockno,
+			tag_data[(blockno*8)+0],tag_data[(blockno*8)+1],tag_data[(blockno*8)+2],tag_data[(blockno*8)+3],
+			tag_data[(blockno*8)+4],tag_data[(blockno*8)+5],tag_data[(blockno*8)+6],tag_data[(blockno*8)+7]);
+	}
+	if (filename[0] == 0){
+		snprintf(filename, FILE_PATH_SIZE,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
+		    tag_data[0],tag_data[1],tag_data[2],tag_data[3],
+		    tag_data[4],tag_data[5],tag_data[6],tag_data[7]);
+	}
+	saveFile(filename,"bin",tag_data, gotBytes );
+	PrintAndLog("Saving dump file - %d blocks read", gotBytes/8);
+	return 1;
+}
+
+/*
+int CmdHFiClassReader_Dump(const char *Cmd)
+{
+	uint8_t readerType = 0;
+	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keytable[128] = {0};
+	bool elite = false;
+	bool use_credit_key = false;
+	uint8_t *used_key;
+	int i;
+	if (strlen(Cmd) < 1)
+	{
+		return usage_hf_iclass_dump();
+	}
+
+	if (param_gethex(Cmd, 0, KEY, 16))
+	{
+		PrintAndLog("KEY must include 16 HEX symbols");
+		return 1;
+	}
+
+	if (param_getchar(Cmd, 1) == 'e')
+	{
+		PrintAndLog("Elite switch on");
+		elite = true;
+
+		//calc h2
+		hash2(KEY, keytable);
+		printarr_human_readable("keytable", keytable, 128);
+
+		if (param_getchar(Cmd, 2) == 'c')
+			use_credit_key = true;
+	} else if (param_getchar(Cmd, 1) == 'c'){
+		use_credit_key = true;		
+	}
+
+	UsbCommand resp;
+	uint8_t key_sel[8] = {0};
+	uint8_t key_sel_p[8] = { 0 };
+
+	UsbCommand c = {CMD_READER_ICLASS, {0}};
+	c.arg[0] = FLAG_ICLASS_READER_ONLY_ONCE| FLAG_ICLASS_READER_CC;
+	if (use_credit_key)
+		c.arg[0] |= FLAG_ICLASS_READER_CEDITKEY;
+	clearCommandBuffer();
+	SendCommand(&c);
+
+	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+	{
+		PrintAndLog("Command execute timeout");
+		return 0;
+	}
+
+	uint8_t isOK    = resp.arg[0] & 0xff;
+	uint8_t * data  = resp.d.asBytes;
+
+	memcpy(CSN,data,8);
+	memcpy(CCNR,data+16,8);
+
+	PrintAndLog("isOk:%02x", isOK);
+
+	if(isOK > 0)
+	{
+		PrintAndLog("CSN: %s",sprint_hex(CSN,8));
+	}
+	if(isOK <= 1){
+		PrintAndLog("Failed to obtain CC! Aborting");
+		return 0;
+	}
+	//Status 2 or higher
+
+	if(elite)
+	{
+		//Get the key index (hash1)
+		uint8_t key_index[8] = {0};
+
+		hash1(CSN, key_index);
+		printvar("hash1", key_index,8);
+		for(i = 0; i < 8 ; i++)
+			key_sel[i] = keytable[key_index[i]] & 0xFF;
+		PrintAndLog("Pre-fortified 'permuted' HS key that would be needed by an iclass reader to talk to above CSN:");
+		printvar("k_sel", key_sel,8);
+		//Permute from iclass format to standard format
+		permutekey_rev(key_sel,key_sel_p);
+		used_key = key_sel_p;
+	}else{
+		used_key = KEY;
+	}
+
+	PrintAndLog("Pre-fortified key that would be needed by the OmniKey reader to talk to above CSN:");
+	printvar("Used key",used_key,8);
+	diversifyKey(CSN,used_key, div_key);
+	PrintAndLog("Hash0, a.k.a diversified key, that is computed using Ksel and stored in the card (Block 3):");
+	printvar("Div key", div_key, 8);
+	printvar("CC_NR:",CCNR,12);
+	doMAC(CCNR,div_key, MAC);
+	printvar("MAC", MAC, 4);
+
+	uint8_t iclass_data[32000] = {0};
+	uint32_t iclass_datalen = 0;
+	uint32_t iclass_blocksFailed = 0;//Set to 1 if dump was incomplete
+
+	UsbCommand d = {CMD_READER_ICLASS_REPLAY, {readerType}};
+	memcpy(d.d.asBytes, MAC, 4);
+	clearCommandBuffer();
+	SendCommand(&d);
+	PrintAndLog("Waiting for device to dump data. Press button on device and key on keyboard to abort...");
+	while (true) {
+		printf(".");
+		if (ukbhit()) {
+			getchar();
+			printf("\naborted via keyboard!\n");
+			break;
+		}
+		if(WaitForResponseTimeout(CMD_ACK,&resp,4500))
+		{
+			uint32_t dataLength = resp.arg[0];
+			iclass_blocksFailed |= resp.arg[1];
+			if(dataLength > 0)
+			{
+				PrintAndLog("Got %d bytes data (total so far %d)" ,dataLength,iclass_datalen);
+				memcpy(iclass_data+iclass_datalen, resp.d.asBytes,dataLength);
+				iclass_datalen += dataLength;
+			}else
+			{//Last transfer, datalength 0 means the dump is finished
+				PrintAndLog("Dumped %d bytes of data from tag. ", iclass_datalen);
+				if(iclass_blocksFailed)
+				{
+					PrintAndLog("OBS! Some blocks failed to be dumped correctly!");
+				}
+				if(iclass_datalen > 0)
+				{
+					char filename[100] = {0};
+					//create a preferred filename
+					snprintf(filename, 100,"iclass_tagdump-%02x%02x%02x%02x%02x%02x%02x%02x",
+							 CSN[0],CSN[1],CSN[2],CSN[3],
+							CSN[4],CSN[5],CSN[6],CSN[7]);
+					//Place the div_key in block 3
+					memcpy(iclass_data+(3*8), div_key, 8);
+					saveFile(filename,"bin",iclass_data, iclass_datalen );
+				}
+				//Aaaand we're finished
+				return 0;
+			}
+		}
+	}
+	return 0;
+}
+*/
+
+int WriteBlock(uint8_t blockno, uint8_t *bldata, uint8_t *KEY, bool use_credit_key, bool elite, bool verbose){
+	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keyType = (use_credit_key) ? 0x18 : 0x88;
+	if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, verbose))
+		return 0;
+
+	UsbCommand resp;
+
+	Calc_wb_mac(blockno,bldata,div_key,MAC);
+	UsbCommand w = {CMD_ICLASS_WRITEBLOCK, {blockno, keyType}};
+	memcpy(w.d.asBytes, bldata, 8);
+	memcpy(w.d.asBytes + 8,MAC, 4);
+	
+	clearCommandBuffer();
+	SendCommand(&w);
+	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+	{
+		PrintAndLog("Write Command execute timeout");
+		return 0;
+	}
+	uint8_t isOK = resp.arg[0] & 0xff;
+	if (!isOK) {
+		PrintAndLog("Write Block Failed");
+		return 0;
+	}
+	PrintAndLog("Write Block Successful");
+
+	return 1;
+}
+
+int usage_hf_iclass_writeblock() {
+	PrintAndLog("Options:");
+  PrintAndLog("  b <Block> : The block number as 2 hex symbols");
+  PrintAndLog("  d <data>  : Set the Data to write as 16 hex symbols");
+	PrintAndLog("  k <Key>   : Access Key as 16 hex symbols or 1 hex to select key from memory");
+  PrintAndLog("  c         : If 'c' is specified, the key set is assumed to be the credit key\n");
+  PrintAndLog("  e         : If 'e' is specified, elite computations applied to key");
+  PrintAndLog("Samples:");
+	PrintAndLog("  hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA k 001122334455667B");
+	PrintAndLog("  hf iclass writeblk b 1B d AAAAAAAAAAAAAAAA k 001122334455667B c");
+	PrintAndLog("  hf iclass writeblk b 0A d AAAAAAAAAAAAAAAA n 0");
+	return 0;
+}
+
+int CmdHFiClass_WriteBlock(const char *Cmd) {
+	uint8_t blockno=0;
+	uint8_t bldata[8]={0};
+	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keyNbr = 0;
+	uint8_t dataLen = 0;
+	char tempStr[50] = {0};
+	bool use_credit_key = false;
+	bool elite = false;
+	bool errors = false;
+	uint8_t cmdp = 0;
+	while(param_getchar(Cmd, cmdp) != 0x00)
+	{
+		switch(param_getchar(Cmd, cmdp))
+		{
+		case 'h':
+		case 'H':
+			return usage_hf_iclass_writeblock();
+		case 'b':
+		case 'B':
+			if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
+				PrintAndLog("Block No must include 2 HEX symbols\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'c':
+		case 'C':
+			use_credit_key = true;
+			cmdp++;
+			break;
+		case 'd':
+		case 'D':
+			if (param_gethex(Cmd, cmdp+1, bldata, 16))
+			{
+				PrintAndLog("KEY must include 16 HEX symbols\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'e':
+		case 'E':
+			elite = true;
+			cmdp++;
+			break;
+		case 'k':
+		case 'K':
+			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+			if (dataLen == 16) { 
+				errors = param_gethex(tempStr, 0, KEY, dataLen);
+			} else if (dataLen == 1) {
+				keyNbr = param_get8(Cmd, cmdp+1);
+				if (keyNbr <= ICLASS_KEYS_MAX) {
+					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+				} else {
+					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+					errors = true;
+				}
+			} else {
+				PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		default:
+			PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+			errors = true;
+			break;
+		}
+		if(errors) return usage_hf_iclass_writeblock();
+	}
+
+	if (cmdp < 6) return usage_hf_iclass_writeblock();
+
+	return WriteBlock(blockno, bldata, KEY, use_credit_key, elite, true);
+}
+
+int usage_hf_iclass_clone() {
+	PrintAndLog("Usage:  hf iclass clone f <tagfile.bin> b <first block> l <last block> k <KEY> e c");
+	PrintAndLog("Options:");
+	PrintAndLog("  f <filename>: specify a filename to clone from");
+	PrintAndLog("  b <Block>   : The first block to clone as 2 hex symbols");
+	PrintAndLog("  l <Last Blk>: Set the Data to write as 16 hex symbols");
+	PrintAndLog("  k <Key>     : Access Key as 16 hex symbols or 1 hex to select key from memory");
+	PrintAndLog("  c           : If 'c' is specified, the key set is assumed to be the credit key\n");
+	PrintAndLog("  e           : If 'e' is specified, elite computations applied to key");
+	PrintAndLog("Samples:");
+	PrintAndLog("  hf iclass clone f iclass_tagdump-121345.bin b 06 l 1A k 1122334455667788 e");
+	PrintAndLog("  hf iclass clone f iclass_tagdump-121345.bin b 05 l 19 k 0");
+	PrintAndLog("  hf iclass clone f iclass_tagdump-121345.bin b 06 l 19 k 0 e");
+	return -1;
+}
+
+int CmdHFiClassCloneTag(const char *Cmd) {
+	char filename[FILE_PATH_SIZE];
+	char tempStr[50]={0};
+	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keyNbr = 0;
+	uint8_t fileNameLen = 0;
+	uint8_t startblock = 0;
+	uint8_t endblock = 0;
+	uint8_t dataLen = 0;
+	bool use_credit_key = false;
+	bool elite = false;
+	bool errors = false;
+	uint8_t cmdp = 0;
+	while(param_getchar(Cmd, cmdp) != 0x00)
+	{
+		switch(param_getchar(Cmd, cmdp))
+		{
+		case 'h':
+		case 'H':
+			return usage_hf_iclass_clone();
+		case 'b':
+		case 'B':
+			if (param_gethex(Cmd, cmdp+1, &startblock, 2)) {
+				PrintAndLog("Start Block No must include 2 HEX symbols\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'c':
+		case 'C':
+			use_credit_key = true;
+			cmdp++;
+			break;
+		case 'e':
+		case 'E':
+			elite = true;
+			cmdp++;
+			break;
+		case 'f':
+		case 'F':
+			fileNameLen = param_getstr(Cmd, cmdp+1, filename); 
+			if (fileNameLen < 1) {
+				PrintAndLog("No filename found after f");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'k':
+		case 'K':
+			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+			if (dataLen == 16) { 
+				errors = param_gethex(tempStr, 0, KEY, dataLen);
+			} else if (dataLen == 1) {
+				keyNbr = param_get8(Cmd, cmdp+1);
+				if (keyNbr <= ICLASS_KEYS_MAX) {
+					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+				} else {
+					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+					errors = true;
+				}
+			} else {
+				PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'l':
+		case 'L':
+			if (param_gethex(Cmd, cmdp+1, &endblock, 2)) {
+				PrintAndLog("Start Block No must include 2 HEX symbols\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		default:
+			PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+			errors = true;
+			break;
+		}
+		if(errors) return usage_hf_iclass_clone();
+	}
+
+	if (cmdp < 8) return usage_hf_iclass_clone();
+
+	FILE *f;
+
+	iclass_block_t tag_data[USB_CMD_DATA_SIZE/12];
+
+	if ((endblock-startblock+1)*12 > USB_CMD_DATA_SIZE) {
+		PrintAndLog("Trying to write too many blocks at once.  Max: %d", USB_CMD_DATA_SIZE/8);
+	}
+	// file handling and reading
+	f = fopen(filename,"rb");
+	if(!f) {
+		PrintAndLog("Failed to read from file '%s'", filename);
+		return 1;
+	}
+
+	if (startblock<5) {
+		PrintAndLog("You cannot write key blocks this way. yet... make your start block > 4");
+		return 0;
+	}
+	// now read data from the file from block 6 --- 19
+	// ok we will use this struct [data 8 bytes][MAC 4 bytes] for each block calculate all mac number for each data
+	// then copy to usbcommand->asbytes; the max is 32 - 6 = 24 block 12 bytes each block 288 bytes then we can only accept to clone 21 blocks at the time,
+	// else we have to create a share memory
+	int i;
+	fseek(f,startblock*8,SEEK_SET);
+	fread(tag_data,sizeof(iclass_block_t),endblock - startblock + 1,f);
+	/*
+	for (i = 0; i < endblock - startblock+1; i++){
+		printf("block [%02x] [%02x%02x%02x%02x%02x%02x%02x%02x]\n",i + startblock,tag_data[i].d[0],tag_data[i].d[1],tag_data[i].d[2],tag_data[i].d[3],tag_data[i].d[4],tag_data[i].d[5],tag_data[i].d[6],tag_data[i].d[7]);
+	}*/
+
+	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+	if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, true))
+		return 0;
+
+	UsbCommand w = {CMD_ICLASS_CLONE,{startblock,endblock,((use_credit_key) ? 0x18 : 0x88)}};
+	uint8_t *ptr;
+	// calculate all mac for every the block we will write
+	for (i = startblock; i <= endblock; i++){
+	    Calc_wb_mac(i,tag_data[i - startblock].d,div_key,MAC);
+	    // usb command d start pointer = d + (i - 6) * 12
+	    // memcpy(pointer,tag_data[i - 6],8) 8 bytes
+	    // memcpy(pointer + 8,mac,sizoof(mac) 4 bytes;
+	    // next one
+	    ptr = w.d.asBytes + (i - startblock) * 12;
+	    memcpy(ptr, &(tag_data[i - startblock].d[0]), 8);
+	    memcpy(ptr + 8,MAC, 4);
+	}
+	uint8_t p[12];
+	for (i = 0; i <= endblock - startblock;i++){
+	    memcpy(p,w.d.asBytes + (i * 12),12);
+	    printf("block [%02x]",i + startblock);
+	    printf(" [%02x%02x%02x%02x%02x%02x%02x%02x]",p[0],p[1],p[2],p[3],p[4],p[5],p[6],p[7]);
+	    printf(" MAC [%02x%02x%02x%02x]\n",p[8],p[9],p[10],p[11]);
+	}
+	UsbCommand resp;
+	SendCommand(&w);
+	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+	{
+		PrintAndLog("Command execute timeout");
+		return 0;
+	}
+	return 1;
+}
+
+int ReadBlock(uint8_t *KEY, uint8_t blockno, uint8_t keyType, bool elite, bool verbose){
+	uint8_t MAC[4]={0x00,0x00,0x00,0x00};
+	uint8_t div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+
+	if (!select_and_auth(KEY, MAC, div_key, (keyType==0x18), elite, verbose))
+		return 0;
+
+	UsbCommand resp;
+	UsbCommand w = {CMD_ICLASS_READBLOCK, {blockno, keyType}};
+	clearCommandBuffer();
+	SendCommand(&w);
+	if (!WaitForResponseTimeout(CMD_ACK,&resp,4500))
+	{
+		PrintAndLog("Command execute timeout");
+		return 0;
+	}
+	uint8_t isOK = resp.arg[0] & 0xff;
+	if (!isOK) {
+		PrintAndLog("Read Block Failed");
+		return 0;
+	}
+	//data read is stored in: resp.d.asBytes[0-15]
+	if (verbose) PrintAndLog("Block %02X: %s\n",blockno, sprint_hex(resp.d.asBytes,8));
+	return 1;
+}
+
+int usage_hf_iclass_readblock(){
+	PrintAndLog("Usage:  hf iclass readblk b <Block> k <Key> c e\n");
+	PrintAndLog("Options:");
+  PrintAndLog("  b <Block> : The block number as 2 hex symbols");
+	PrintAndLog("  k <Key>   : Access Key as 16 hex symbols or 1 hex to select key from memory");
+  PrintAndLog("  c         : If 'c' is specified, the key set is assumed to be the credit key\n");
+  PrintAndLog("  e         : If 'e' is specified, elite computations applied to key");
+  PrintAndLog("Samples:");
+	PrintAndLog("  hf iclass readblk b 06 k 0011223344556677");
+	PrintAndLog("  hf iclass readblk b 1B k 0011223344556677 c");
+	PrintAndLog("  hf iclass readblk b 0A k 0");
+	return 0;
+}
+
+int CmdHFiClass_ReadBlock(const char *Cmd)
+{
+	uint8_t blockno=0;
+	uint8_t keyType = 0x88; //debit key
+	uint8_t KEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keyNbr = 0;
+	uint8_t dataLen = 0;
+	char tempStr[50] = {0};
+	bool elite = false;
+	bool errors = false;
+	uint8_t cmdp = 0;
+	while(param_getchar(Cmd, cmdp) != 0x00)
+	{
+		switch(param_getchar(Cmd, cmdp))
+		{
+		case 'h':
+		case 'H':
+			return usage_hf_iclass_readblock();
+		case 'b':
+		case 'B':
+			if (param_gethex(Cmd, cmdp+1, &blockno, 2)) {
+				PrintAndLog("Block No must include 2 HEX symbols\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'c':
+		case 'C':
+			keyType = 0x18;
+			cmdp++;
+			break;
+		case 'e':
+		case 'E':
+			elite = true;
+			cmdp++;
+			break;
+		case 'k':
+		case 'K':
+			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+			if (dataLen == 16) { 
+				errors = param_gethex(tempStr, 0, KEY, dataLen);
+			} else if (dataLen == 1) {
+				keyNbr = param_get8(Cmd, cmdp+1);
+				if (keyNbr <= ICLASS_KEYS_MAX) {
+					memcpy(KEY, iClass_Key_Table[keyNbr], 8);
+				} else {
+					PrintAndLog("\nERROR: Credit KeyNbr is invalid\n");
+					errors = true;
+				}
+			} else {
+				PrintAndLog("\nERROR: Credit Key is incorrect length\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		default:
+			PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+			errors = true;
+			break;
+		}
+		if(errors) return usage_hf_iclass_readblock();
+	}
+
+	if (cmdp < 4) return usage_hf_iclass_readblock();
+	
+	return ReadBlock(KEY, blockno, keyType, elite, true);
+}
+
+int CmdHFiClass_loclass(const char *Cmd)
 {
 	char opt = param_getchar(Cmd, 0);
 
@@ -574,18 +1440,350 @@ int CmdHFiClass_loclass(const char *Cmd)
 	return 0;
 }
 
+int usage_hf_iclass_readtagfile(){
+	PrintAndLog("Usage: hf iclass readtagfile <filename>");
+	return 1;
+}
+
+void printIclassDumpContents(uint8_t *iclass_dump, uint8_t startblock, uint8_t endblock, size_t filesize){
+	uint8_t blockdata[8];
+	uint8_t mem_config;
+	memcpy(&mem_config, iclass_dump + 13,1);
+	uint8_t maxmemcount;
+	uint8_t filemaxblock = filesize / 8;
+	if (mem_config == 0x80)
+		maxmemcount = 255;
+	else
+		maxmemcount = 32;
+
+	if (startblock == 0)
+		startblock = 6;
+	if ((endblock > maxmemcount) || (endblock == 0))
+		endblock = maxmemcount;
+	if (endblock > filemaxblock)
+		endblock = filemaxblock;
+	int i = startblock;
+	int j;
+	while (i < endblock){
+		printf("block[%02X]: ",i);
+		memcpy(blockdata,iclass_dump + (i * 8),8);
+		for (j = 0;j < 8;j++)
+			printf("%02X ",blockdata[j]);
+		printf("\n");
+		i++;
+	}
+	if ((i < filemaxblock) && (i < maxmemcount)){
+		printf("block[%02X]: ",i);
+		memcpy(blockdata,iclass_dump + (i * 8),8);
+		for (j = 0;j < 8;j++)
+			printf("%02X",blockdata[j]);
+		printf("\n");
+	}
+}
+
+int CmdHFiClassReadTagFile(const char *Cmd)
+{
+	int startblock = 0;
+	int endblock = 0;
+	char tempnum[5];
+	FILE *f;
+	char filename[FILE_PATH_SIZE];
+	if (param_getstr(Cmd, 0, filename) < 1)
+		return usage_hf_iclass_readtagfile();
+	if (param_getstr(Cmd,1,(char *)&tempnum) < 1)
+		startblock = 0;
+	else
+		sscanf(tempnum,"%d",&startblock);
+
+	if (param_getstr(Cmd,2,(char *)&tempnum) < 1)
+		endblock = 0;
+	else
+		sscanf(tempnum,"%d",&endblock);
+	// file handling and reading
+	f = fopen(filename,"rb");
+	if(!f) {
+		PrintAndLog("Failed to read from file '%s'", filename);
+		return 1;
+	}
+	fseek(f, 0, SEEK_END);
+	long fsize = ftell(f);
+	fseek(f, 0, SEEK_SET);
+
+	uint8_t *dump = malloc(fsize);
+
+
+	size_t bytes_read = fread(dump, 1, fsize, f);
+	fclose(f);
+	uint8_t *csn = dump;
+	printf("CSN :     %02X %02X %02X %02X %02X %02X %02X %02X\n",csn[0],csn[1],csn[2],csn[3],csn[4],csn[5],csn[6],csn[7]);
+	//    printIclassDumpInfo(dump);
+	printIclassDumpContents(dump,startblock,endblock,bytes_read);
+	free(dump);
+	return 0;
+}
+
+uint64_t xorcheck(uint64_t sdiv,uint64_t hdiv){
+	uint64_t new_div = 0x00;
+	new_div ^= sdiv;
+	new_div ^= hdiv;
+	return new_div;
+}
+
+uint64_t hexarray_to_uint64(uint8_t *key){
+	char temp[17];
+	uint64_t uint_key;
+	for (int i = 0;i < 8;i++)
+		sprintf(&temp[(i *2)],"%02X",key[i]);
+	temp[16] = '\0';
+	if (sscanf(temp,"%016"llX,&uint_key) < 1)
+		return 0;
+	return uint_key;
+}
+
+int usage_hf_iclass_calc_ekey(){
+	PrintAndLog("Usage: hf iclass calc_ekey <STDKEY> <ELITE key> [c]");
+	return 1;
+}
+
+int CmdHFiClassCalcEKey(const char *Cmd){
+	uint8_t STDKEY[8];
+	uint8_t ELITEKEY[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t CSN[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t CCNR[12]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t std_div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t elite_div_key[8]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+	uint8_t keytable[128] = {0};
+	uint8_t key_index[8] = {0};
+	uint64_t new_div_key;
+	uint64_t i_elite_div_key;
+	uint64_t i_std_div_key;
+	bool use_credit_key = false;
+	//memcpy(STDKEY,GLOBAL_KEY,sizeof(STDKEY));
+	int i;
+	if (strlen(Cmd) < 2)
+		return usage_hf_iclass_calc_ekey();
+
+	if (param_gethex(Cmd, 0, STDKEY, 16))
+		return usage_hf_iclass_calc_ekey();
+
+	if (param_gethex(Cmd, 1, ELITEKEY, 16) != 0)
+		return usage_hf_iclass_calc_ekey();
+
+	if (param_getchar(Cmd, 2)=='c')
+		use_credit_key = true;
+
+	hash2(ELITEKEY, keytable);
+
+	uint8_t key_sel[8] = { 0 };
+	uint8_t key_sel_p[8] = { 0 };
+
+	if (!select_only(CSN, CCNR, use_credit_key, true))
+		return 0;
+
+	diversifyKey(CSN, STDKEY, std_div_key);
+
+	//    printvar("(S)Div key", std_div_key, 8);
+	hash1(CSN, key_index);
+	for(i = 0; i < 8 ; i++)
+		key_sel[i] = keytable[key_index[i]] & 0xFF;
+
+	//Permute from iclass format to standard format
+	permutekey_rev(key_sel, key_sel_p);
+	diversifyKey(CSN, key_sel_p, elite_div_key);
+	//    printvar("(E)Div key", elite_div_key, 8);
+	i_elite_div_key = hexarray_to_uint64(elite_div_key);
+	i_std_div_key = hexarray_to_uint64(std_div_key);
+	new_div_key = xorcheck(i_std_div_key, i_elite_div_key);
+	printf("New Div Key : %016"llX"\n",new_div_key);
+	return 0;
+}
+
+int loadKeys(char *filename){
+	FILE *f;
+	f = fopen(filename,"rb");
+	if(!f) {
+		PrintAndLog("Failed to read from file '%s'", filename);
+		return 0;
+	}
+	fseek(f, 0, SEEK_END);
+	long fsize = ftell(f);
+	fseek(f, 0, SEEK_SET);
+
+	uint8_t *dump = malloc(fsize);
+
+	size_t bytes_read = fread(dump, 1, fsize, f);
+	fclose(f);
+	if (bytes_read > ICLASS_KEYS_MAX * 8){
+		PrintAndLog("File is too long to load - bytes: %u", bytes_read);
+		free(dump);
+		return 0;
+	}
+	uint8_t i = 0;
+	for (; i < bytes_read/8; i++){
+		memcpy(iClass_Key_Table[i],dump+(i*8),8);
+	}
+	free(dump);
+	PrintAndLog("%u keys loaded", i);
+	return 1;
+}
+
+int saveKeys(char *filename){
+	FILE *f;
+	f = fopen(filename,"wb");
+	if (f == NULL) {
+		printf("error opening file %s\n",filename);
+		return 0;
+	}
+	for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
+		if (fwrite(iClass_Key_Table[i],8,1,f) != 1){
+			PrintAndLog("save key failed to write to file: %s", filename);
+			break;
+		}
+	}
+	fclose(f);
+	return 0;
+}
+
+int printKeys(){
+	PrintAndLog("");
+	for (uint8_t i = 0; i < ICLASS_KEYS_MAX; i++){
+		PrintAndLog("%u: %s",i,sprint_hex(iClass_Key_Table[i],8));
+	}
+	PrintAndLog("");	
+	return 0;
+}
+
+int usage_hf_iclass_managekeys(){
+	PrintAndLog("HELP :  Manage iClass Keys in client memory:\n");
+	PrintAndLog("Usage:  hf iclass managekeys n [keynbr] k [key] f [filename] s l p\n");
+	PrintAndLog("  Options:");
+	PrintAndLog("  n <keynbr>  : specify the keyNbr to set in memory");
+	PrintAndLog("  k <key>     : set a key in memory");
+	PrintAndLog("  f <filename>: specify a filename to use with load or save operations");
+	PrintAndLog("  s           : save keys in memory to file specified by filename");
+	PrintAndLog("  l           : load keys to memory from file specified by filename");
+	PrintAndLog("  p           : print keys loaded into memory\n");
+	PrintAndLog("Samples:");
+	PrintAndLog(" set key      : hf iclass managekeys n 0 k 1122334455667788");
+	PrintAndLog(" save key file: hf iclass managekeys f mykeys.bin s");
+	PrintAndLog(" load key file: hf iclass managekeys f mykeys.bin l");
+	PrintAndLog(" print keys   : hf iclass managekeys p\n");
+	return 0;
+}
+
+int CmdManageKeys(const char *Cmd){
+	uint8_t keyNbr = 0;
+	uint8_t dataLen = 0;
+	uint8_t KEY[8] = {0};
+	char filename[FILE_PATH_SIZE];
+	uint8_t fileNameLen = 0;
+	bool errors = false;
+	uint8_t operation = 0;
+	char tempStr[20];
+	uint8_t cmdp = 0;
+
+	while(param_getchar(Cmd, cmdp) != 0x00)
+	{
+		switch(param_getchar(Cmd, cmdp))
+		{
+		case 'h':
+		case 'H':
+			return usage_hf_iclass_managekeys();
+		case 'f':
+		case 'F':
+			fileNameLen = param_getstr(Cmd, cmdp+1, filename); 
+			if (fileNameLen < 1) {
+				PrintAndLog("No filename found after f");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'n':
+		case 'N':
+			keyNbr = param_get8(Cmd, cmdp+1);
+			if (keyNbr < 0) {
+				PrintAndLog("Wrong block number");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'k':
+		case 'K':
+			operation += 3; //set key 
+			dataLen = param_getstr(Cmd, cmdp+1, tempStr);
+			if (dataLen == 16) { //ul-c or ev1/ntag key length
+				errors = param_gethex(tempStr, 0, KEY, dataLen);
+			} else {
+				PrintAndLog("\nERROR: Key is incorrect length\n");
+				errors = true;
+			}
+			cmdp += 2;
+			break;
+		case 'p':
+		case 'P':
+			operation += 4; //print keys in memory
+			cmdp++;
+			break;
+		case 'l':
+		case 'L':
+			operation += 5; //load keys from file
+			cmdp++;
+			break;
+		case 's':
+		case 'S':
+			operation += 6; //save keys to file
+			cmdp++;
+			break;
+		default:
+			PrintAndLog("Unknown parameter '%c'\n", param_getchar(Cmd, cmdp));
+			errors = true;
+			break;
+		}
+		if(errors) return usage_hf_iclass_managekeys();
+	}
+	if (operation == 0){
+		PrintAndLog("no operation specified (load, save, or print)\n");
+		return usage_hf_iclass_managekeys();
+	}
+	if (operation > 6){
+		PrintAndLog("Too many operations specified\n");
+		return usage_hf_iclass_managekeys();
+	}
+	if (operation > 4 && fileNameLen == 0){
+		PrintAndLog("You must enter a filename when loading or saving\n");
+		return usage_hf_iclass_managekeys();
+	}
+
+	switch (operation){
+		case 3: memcpy(iClass_Key_Table[keyNbr], KEY, 8); return 1;
+		case 4: return printKeys();
+		case 5: return loadKeys(filename);
+		case 6: return saveKeys(filename);
+		break;
+	}
+	return 0;
+}
+
 static command_t CommandTable[] = 
 {
-	{"help",	CmdHelp,			1,	"This help"},
-	{"list",	CmdHFiClassList,	0,	"[Deprecated] List iClass history"},
-	{"snoop",	CmdHFiClassSnoop,	0,	"Eavesdrop iClass communication"},
-	{"sim",	CmdHFiClassSim,		0,	"Simulate iClass tag"},
-	{"reader",CmdHFiClassReader,	0,	"Read an iClass tag"},
-	{"replay",CmdHFiClassReader_Replay,	0,	"Read an iClass tag via Reply Attack"},
-	{"dump",	CmdHFiClassReader_Dump,	0,		"Authenticate and Dump iClass tag"},
-//	{"write",	CmdHFiClass_iso14443A_write,	0,	"Authenticate and Write iClass block"},
-	{"loclass",	CmdHFiClass_loclass,	1,	"Use loclass to perform bruteforce of reader attack dump"},
-	{"eload",   CmdHFiClassELoad,    0,     "[experimental] Load data into iclass emulator memory"},
+	{"help",        CmdHelp,                    	1,	"This help"},
+	{"calc_ekey",   CmdHFiClassCalcEKey,        	0,	"Get Elite Diversified key (block 3) to write to convert std to elite"},
+	{"clone",       CmdHFiClassCloneTag,        	0,	"Authenticate and Clone from iClass bin file"},
+	{"decrypt",     CmdHFiClassDecrypt,         	1,	"Decrypt tagdump" },
+	{"dump",        CmdHFiClassReader_Dump,     	0,	"Authenticate and Dump iClass tag's AA1"},
+	{"eload",       CmdHFiClassELoad,           	0,	"[experimental] Load data into iClass emulator memory"},
+	{"encryptblk",  CmdHFiClassEncryptBlk,      	1,	"[blockData] Encrypt given block data"},
+	{"list",        CmdHFiClassList,            	0,	"[Deprecated] List iClass history"},
+	//{"load",        CmdHFiClass_load,           	0,	"Load from tagfile to iClass card"},
+	{"loclass",     CmdHFiClass_loclass,        	1,	"Use loclass to perform bruteforce of reader attack dump"},
+	{"managekeys",  CmdManageKeys,              	1,	"Manage the keys to use with iClass"},
+	{"readblk",     CmdHFiClass_ReadBlock,      	0,	"Authenticate and Read iClass block"},
+	{"reader",      CmdHFiClassReader,          	0,	"Read an iClass tag"},
+	{"readtagfile", CmdHFiClassReadTagFile,     	1,	"Display Content from tagfile"},
+	{"replay",      CmdHFiClassReader_Replay,   	0,	"Read an iClass tag via Reply Attack"},
+	{"sim",         CmdHFiClassSim,             	0,	"Simulate iClass tag"},
+	{"snoop",       CmdHFiClassSnoop,           	0,	"Eavesdrop iClass communication"},
+	{"writeblk",    CmdHFiClass_WriteBlock,     	0,	"Authenticate and Write iClass block"},
 	{NULL, NULL, 0, NULL}
 };