X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/a71c68bdf0d117609a1ffd0141d1d682e1ff8e15..790e8eae099de71161aea127c386c6c1b2c71f04:/client/cmdhf14b.c

diff --git a/client/cmdhf14b.c b/client/cmdhf14b.c
index d9e56693..2e90bc4b 100644
--- a/client/cmdhf14b.c
+++ b/client/cmdhf14b.c
@@ -22,13 +22,15 @@
 #include "cmdhf14b.h"
 #include "cmdmain.h"
 #include "cmdhf14a.h"
+#include "tea.h"
+#include "cmdhf.h"
+#include "prng.h"
+#include "sha1.h"
 
 static int CmdHelp(const char *Cmd);
 
-int CmdHF14BList(const char *Cmd)
-{
-	PrintAndLog("Deprecated command, use 'hf list 14b' instead");
-
+int CmdHF14BList(const char *Cmd) {
+	CmdHFList("14b");
 	return 0;
 }
 
@@ -64,19 +66,26 @@ int CmdSri512Read(const char *Cmd)
  * SRIX4K tags are ISO14443-B modulated memory tags,
  * this command just dumps the contents of the memory/
  */
-int CmdSrix4kRead(const char *Cmd)
-{
+int CmdSrix4kRead(const char *Cmd) {
 	UsbCommand c = {CMD_READ_SRIX4K_TAG, {strtol(Cmd, NULL, 0), 0, 0}};
 	clearCommandBuffer();
 	SendCommand(&c);
 	return 0;
 }
 
-int rawClose(void){
+static int rawCloseEx(bool verbose){
+	UsbCommand resp;
 	UsbCommand c = {CMD_ISO_14443B_COMMAND, {0, 0, 0}};
 	clearCommandBuffer();
 	SendCommand(&c);
-	return 0;	
+	if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
+		if ( verbose ) PrintAndLog("Command time-out");
+		return 0;
+	}
+	return 1;
+}
+static int rawClose() {
+	return rawCloseEx(false);
 }
 
 int HF14BCmdRaw(bool reply, bool *crc, bool power, uint8_t *data, uint8_t *datalen, bool verbose){
@@ -309,7 +318,7 @@ char *get_ST_Chip_Model(uint8_t data){
 		case 0x6: sprintf(retStr, "SRI512"); break;
 		case 0x7: sprintf(retStr, "SRI4K"); break;
 		case 0xC: sprintf(retStr, "SRT512"); break;
-		default: sprintf(retStr, "Unknown"); break;
+		default : sprintf(retStr, "Unknown"); break;
 	}
 	return retStr;
 }
@@ -344,7 +353,7 @@ int print_ST_Lock_info(uint8_t model){
 		case 0x7: //             (SRI4K)
 			//only need data[3]
 			blk1 = 9;
-			PrintAndLog("   raw: %s",printBits(1,data+3));
+			PrintAndLog("   raw: %s", sprint_bin(data+3, 1));
 			PrintAndLog(" 07/08:%slocked", (data[3] & 1) ? " not " : " " );
 			for (uint8_t i = 1; i<8; i++){
 				PrintAndLog("    %02u:%slocked", blk1, (data[3] & (1 << i)) ? " not " : " " );
@@ -356,7 +365,7 @@ int print_ST_Lock_info(uint8_t model){
 		case 0xC: //             (SRT512)
 			//need data[2] and data[3]
 			blk1 = 0;
-			PrintAndLog("   raw: %s",printBits(2,data+2));
+			PrintAndLog("   raw: %s", sprint_bin(data+2, 2));
 			for (uint8_t b=2; b<4; b++){
 				for (uint8_t i=0; i<8; i++){
 					PrintAndLog("    %02u:%slocked", blk1, (data[b] & (1 << i)) ? " not " : " " );
@@ -367,7 +376,7 @@ int print_ST_Lock_info(uint8_t model){
 		case 0x2: //             (SR176)
 			//need data[2]
 			blk1 = 0;
-			PrintAndLog("   raw: %s",printBits(1,data+2));
+			PrintAndLog("   raw: %s", sprint_bin(data+2, 1));
 			for (uint8_t i = 0; i<8; i++){
 				PrintAndLog(" %02u/%02u:%slocked", blk1, blk1+1, (data[2] & (1 << i)) ? " " : " not " );
 				blk1+=2;
@@ -389,7 +398,7 @@ static void print_st_general_info(uint8_t *data){
 }
 
 // 14b get and print UID only (general info)
-int HF14BStdReader(uint8_t *data, uint8_t *datalen){
+int HF14BStdReader(uint8_t *data, uint8_t *datalen, bool verbose){
 	//05 00 00 = find one tag in field
 	//1d xx xx xx xx 00 08 01 00 = attrib xx=UID (resp 10 [f9 e0])
 	//a3 = ?  (resp 03 [e2 c2])
@@ -414,9 +423,9 @@ int HF14BStdReader(uint8_t *data, uint8_t *datalen){
 	data[1] = 0x00;
 	data[2] = 0x08;
 
-	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose();
+	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawCloseEx(verbose);
 
-	if (data[0] != 0x50 || *datalen != 14 || !crc) return rawClose();
+	if (data[0] != 0x50 || *datalen != 14 || !crc) return rawCloseEx(verbose);
 
 	PrintAndLog ("\n14443-3b tag found:");
 	PrintAndLog ("           UID: %s", sprint_hex(data+1,4));
@@ -438,28 +447,26 @@ int HF14BStdReader(uint8_t *data, uint8_t *datalen){
 	cmdLen = 9;
 
 	// attrib
-	if (HF14BCmdRaw(true, &crc2, true, cmd2, &cmdLen, false)==0) return rawClose();
+	if (HF14BCmdRaw(true, &crc2, true, cmd2, &cmdLen, false)==0) rawCloseEx(verbose);
 
-	if (cmdLen != 3 || !crc2) return rawClose();
+	if (cmdLen != 3 || !crc2) return rawCloseEx(verbose);
 	// add attrib responce to data
 	data[14] = cmd2[0];
-	rawClose();
+	rawCloseEx(verbose);
 	return 1;
 }
 
 // 14b get and print Full Info (as much as we know)
-int HF14BStdInfo(uint8_t *data, uint8_t *datalen){
-	if (!HF14BStdReader(data,datalen)) return 0;
+int HF14BStdInfo(uint8_t *data, uint8_t *datalen, bool verbose){
+	if (!HF14BStdReader(data,datalen, verbose)) return 0;
 
 	//add more info here
 	print_atqb_resp(data);
-
-
 	return 1;
 }
 
 // SRx get and print general info about SRx chip from UID
-int HF14B_ST_Reader(uint8_t *data, uint8_t *datalen, bool closeCon){
+int HF14B_ST_Reader(uint8_t *data, uint8_t *datalen, bool closeCon, bool verbose){
 	bool crc = true;
 	*datalen = 2;
 	//wake cmd
@@ -468,7 +475,7 @@ int HF14B_ST_Reader(uint8_t *data, uint8_t *datalen, bool closeCon){
 
 	//leave power on
 	// verbose on for now for testing - turn off when functional
-	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose();
+	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawCloseEx(verbose);
 
 	if (*datalen != 3 || !crc) return rawClose();
 
@@ -479,40 +486,42 @@ int HF14B_ST_Reader(uint8_t *data, uint8_t *datalen, bool closeCon){
 	*datalen = 2;
 
 	//leave power on
-	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose();
+	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawCloseEx(verbose);
 
-	if (*datalen != 3 || !crc || data[0] != chipID) return rawClose();
+	if (*datalen != 3 || !crc || data[0] != chipID) return rawCloseEx(verbose);
 
 	// get uid
 	data[0] = 0x0B;
 	*datalen = 1;
 
 	//leave power on
-	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawClose();
+	if (HF14BCmdRaw(true, &crc, true, data, datalen, false)==0) return rawCloseEx(verbose);
 
-	if (*datalen != 10 || !crc) return rawClose();
+	if (*datalen != 10 || !crc) return rawCloseEx(verbose);
 
 	//power off ?
-	if (closeCon) rawClose();
+	if (closeCon) rawCloseEx(verbose);
 
-	PrintAndLog("\n14443-3b ST tag found:");
-	print_st_general_info(data);
+	if (verbose ) {
+		PrintAndLog("\n14443-3b ST tag found:");
+		print_st_general_info(data);
+	}
 	return 1;
 }
 
 // SRx get and print full info (needs more info...)
-int HF14B_ST_Info(uint8_t *data, uint8_t *datalen){
-	if (!HF14B_ST_Reader(data, datalen, false)) return 0;
+int HF14B_ST_Info(uint8_t *data, uint8_t *datalen, bool verbose){
+	if (!HF14B_ST_Reader(data, datalen, false, verbose)) return 0;
 	
 	//add locking bit information here.
 	if (print_ST_Lock_info(data[5]>>2)) 
-		rawClose();
+		rawCloseEx(verbose);
 
 	return 1;
 }
 
 // test for other 14b type tags (mimic another reader - don't have tags to identify)
-int HF14B_Other_Reader(uint8_t *data, uint8_t *datalen){
+int HF14B_Other_Reader(uint8_t *data, uint8_t *datalen, bool verbose){
 	bool crc = true;
 	*datalen = 4;
 	//std read cmd
@@ -526,7 +535,7 @@ int HF14B_Other_Reader(uint8_t *data, uint8_t *datalen){
 			PrintAndLog ("\n14443-3b tag found:");
 			PrintAndLog ("Unknown tag type answered to a 0x000b3f80 command ans:");
 			PrintAndLog ("%s",sprint_hex(data,*datalen));
-			rawClose();
+			rawCloseEx(verbose);
 			return 1;
 		}
 	}
@@ -540,7 +549,7 @@ int HF14B_Other_Reader(uint8_t *data, uint8_t *datalen){
 			PrintAndLog ("\n14443-3b tag found:");
 			PrintAndLog ("Unknown tag type answered to a 0x0A command ans:");
 			PrintAndLog ("%s",sprint_hex(data,*datalen));
-			rawClose();
+			rawCloseEx(verbose);
 			return 1;
 		}
 	}
@@ -554,11 +563,11 @@ int HF14B_Other_Reader(uint8_t *data, uint8_t *datalen){
 			PrintAndLog ("\n14443-3b tag found:");
 			PrintAndLog ("Unknown tag type answered to a 0x0C command ans:");
 			PrintAndLog ("%s",sprint_hex(data,*datalen));
-			rawClose();
+			rawCloseEx(verbose);
 			return 1;
 		}
 	}
-	rawClose();
+	rawCloseEx(verbose);
 	return 0;
 }
 
@@ -568,14 +577,14 @@ int HF14BInfo(bool verbose){
 	uint8_t datalen = 5;
 
 	// try std 14b (atqb)
-	if (HF14BStdInfo(data, &datalen)) return 1;
+	if (HF14BStdInfo(data, &datalen, verbose)) return 1;
 
 	// try st 14b
-	if (HF14B_ST_Info(data, &datalen)) return 1;
+	if (HF14B_ST_Info(data, &datalen, verbose)) return 1;
 
 	// try unknown 14b read commands (to be identified later)
 	//   could be read of calypso, CEPAS, moneo, or pico pass.
-	if (HF14B_Other_Reader(data, &datalen)) return 1;
+	if (HF14B_Other_Reader(data, &datalen, verbose)) return 1;
 
 	if (verbose) PrintAndLog("no 14443B tag found");
 	return 0;
@@ -592,14 +601,14 @@ int HF14BReader(bool verbose){
 	uint8_t datalen = 5;
 	
 	// try std 14b (atqb)
-	if (HF14BStdReader(data, &datalen)) return 1;
+	if (HF14BStdReader(data, &datalen, verbose)) return 1;
 
 	// try st 14b
-	if (HF14B_ST_Reader(data, &datalen, true)) return 1;
+	if (HF14B_ST_Reader(data, &datalen, true, verbose)) return 1;
 
 	// try unknown 14b read commands (to be identified later)
 	//   could be read of calypso, CEPAS, moneo, or pico pass.
-	if (HF14B_Other_Reader(data, &datalen)) return 1;
+	if (HF14B_Other_Reader(data, &datalen, verbose)) return 1;
 
 	if (verbose) PrintAndLog("no 14443B tag found");
 	return 0;
@@ -677,8 +686,142 @@ int CmdSriWrite( const char *Cmd){
 	return 0;
 }
 
-static command_t CommandTable[] = 
-{
+uint32_t srix4kEncode(uint32_t value) {
+/*
+// vv = value
+// pp = position
+//                vv vv vv pp 
+4 bytes			: 00 1A 20 01
+*/
+	// only the lower crumbs.
+	uint8_t block = (value & 0xFF);
+	uint8_t i = 0;
+	uint8_t valuebytes[] = {0,0,0};
+		
+	num_to_bytes(value, 3, valuebytes);
+	
+	// Scrambled part
+	// Crumb swapping of value.
+	uint8_t temp[] = {0,0};
+	temp[0] = (CRUMB(value, 22) << 4 | CRUMB(value, 14 ) << 2 | CRUMB(value, 6)) << 4;
+	temp[0] |= CRUMB(value, 20) << 4 | CRUMB(value, 12 ) << 2 | CRUMB(value, 4);
+	temp[1] = (CRUMB(value, 18) << 4 | CRUMB(value, 10 ) << 2 | CRUMB(value, 2)) << 4;
+	temp[1] |= CRUMB(value, 16) << 4 | CRUMB(value, 8  ) << 2 | CRUMB(value, 0);
+
+	// chksum part
+	uint32_t chksum = 0xFF - block;
+	
+	// chksum is reduced by each nibbles of value.
+	for (i = 0; i < 3; ++i){
+		chksum -= NIBBLE_HIGH(valuebytes[i]);
+		chksum -= NIBBLE_LOW(valuebytes[i]);
+	}
+
+	// base4 conversion and left shift twice
+	i = 3;
+	uint8_t base4[] = {0,0,0,0};	
+	while( chksum !=0 ){
+        base4[i--] = (chksum % 4 << 2);
+		chksum /= 4;
+    }
+	
+	// merge scambled and chksum parts
+	uint32_t encvalue = 
+		( NIBBLE_LOW ( base4[0]) << 28 ) |
+		( NIBBLE_HIGH( temp[0])  << 24 ) |
+		
+		( NIBBLE_LOW ( base4[1]) << 20 ) |
+		( NIBBLE_LOW ( temp[0])  << 16 ) |
+		
+		( NIBBLE_LOW ( base4[2]) << 12 ) |
+		( NIBBLE_HIGH( temp[1])  << 8 ) |
+		
+		( NIBBLE_LOW ( base4[3]) << 4 ) |
+		  NIBBLE_LOW ( temp[1] );
+
+	PrintAndLog("ICE encoded | %08X -> %08X", value, encvalue);
+	return encvalue;
+}
+uint32_t srix4kDecode(uint32_t value) {
+	switch(value) {
+		case 0xC04F42C5: return 0x003139;
+		case 0xC1484807: return 0x002943;
+		case 0xC0C60848: return 0x001A20;
+	}
+	return 0;
+}
+uint32_t srix4kDecodeCounter(uint32_t num) {
+	uint32_t value = ~num;
+	++value;
+	return value;
+}
+
+uint32_t srix4kGetMagicbytes( uint64_t uid, uint32_t block6, uint32_t block18, uint32_t block19 ){
+#define MASK 0xFFFFFFFF;
+	uint32_t uid32 = uid & MASK;
+	uint32_t counter = srix4kDecodeCounter(block6);
+	uint32_t decodedBlock18 = srix4kDecode(block18);
+	uint32_t decodedBlock19 = srix4kDecode(block19);
+	uint32_t doubleBlock = (decodedBlock18 << 16 | decodedBlock19) + 1;
+
+	uint32_t result = (uid32 * doubleBlock * counter) & MASK;
+	PrintAndLog("Magic bytes | %08X", result);
+	return result;
+}
+int srix4kValid(const char *Cmd){
+
+	uint64_t uid = 0xD00202501A4532F9;
+	uint32_t block6 = 0xFFFFFFFF;
+	uint32_t block18 = 0xC04F42C5;
+	uint32_t block19 = 0xC1484807;
+	uint32_t block21 = 0xD1BCABA4;
+  
+	uint32_t test_b18 = 0x00313918;
+	uint32_t test_b18_enc = srix4kEncode(test_b18);
+	//uint32_t test_b18_dec = srix4kDecode(test_b18_enc);
+	PrintAndLog("ENCODE & CHECKSUM |  %08X -> %08X (%s)", test_b18, test_b18_enc , "");
+	
+	uint32_t magic = srix4kGetMagicbytes(uid, block6, block18, block19);
+	PrintAndLog("BLOCK 21 |  %08X -> %08X (no XOR)", block21, magic ^ block21);
+	return 0;
+}
+
+int CmdteaSelfTest(const char *Cmd){
+	
+	uint8_t v[8], v_le[8];
+	memset(v, 0x00, sizeof(v));
+	memset(v_le, 0x00, sizeof(v_le));
+	uint8_t* v_ptr = v_le;
+
+	uint8_t cmdlen = strlen(Cmd);
+	cmdlen = ( sizeof(v)<<2 < cmdlen ) ? sizeof(v)<<2 : cmdlen;
+	
+	if ( param_gethex(Cmd, 0, v, cmdlen) > 0 ){
+		PrintAndLog("can't read hex chars, uneven? :: %u", cmdlen);
+		return 1;
+	}
+	
+	SwapEndian64ex(v , 8, 4, v_ptr);
+	
+	// ENCRYPTION KEY:	
+	uint8_t key[16] = {0x55,0xFE,0xF6,0x30,0x62,0xBF,0x0B,0xC1,0xC9,0xB3,0x7C,0x34,0x97,0x3E,0x29,0xFB };
+	uint8_t keyle[16];
+	uint8_t* key_ptr = keyle;
+	SwapEndian64ex(key , sizeof(key), 4, key_ptr);
+	
+	PrintAndLog("TEST LE enc| %s", sprint_hex(v_ptr, 8));
+	
+	tea_decrypt(v_ptr, key_ptr);	
+	PrintAndLog("TEST LE dec | %s", sprint_hex_ascii(v_ptr, 8));
+	
+	tea_encrypt(v_ptr, key_ptr);	
+	tea_encrypt(v_ptr, key_ptr);
+	PrintAndLog("TEST enc2 | %s", sprint_hex_ascii(v_ptr, 8));
+
+	return 0;
+}
+
+static command_t CommandTable[] = {
 	{"help",        CmdHelp,        1, "This help"},
 	{"info",        CmdHF14Binfo,   0, "Find and print details about a 14443B tag"},
 	{"list",        CmdHF14BList,   0, "[Deprecated] List ISO 14443B history"},
@@ -689,17 +832,18 @@ static command_t CommandTable[] =
 	{"srix4kread",  CmdSrix4kRead,  0, "Read contents of a SRIX4K tag"},
 	{"sriwrite",    CmdSriWrite,    0, "Write data to a SRI512 | SRIX4K tag"},
 	{"raw",         CmdHF14BCmdRaw, 0, "Send raw hex data to tag"},
+	//{"valid",   	srix4kValid,	1, "srix4k checksum test"},
+	{"valid",   	CmdteaSelfTest,	1, "tea test"},
 	{NULL, NULL, 0, NULL}
 };
 
-int CmdHF14B(const char *Cmd)
-{
+int CmdHF14B(const char *Cmd) {
+	clearCommandBuffer();
 	CmdsParse(CommandTable, Cmd);
 	return 0;
 }
 
-int CmdHelp(const char *Cmd)
-{
+int CmdHelp(const char *Cmd) {
 	CmdsHelp(CommandTable);
 	return 0;
 }