X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9332b857ffeee343334064d3ca53048f59c55e50..897a14c36fa58f88508c0349dbfd9df368d5de78:/client/cmdhfmfu.c

diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index d1b810a5..1b438980 100644
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -100,6 +100,38 @@ uint32_t ul_ev1_pwdgenB(uint8_t* uid) {
 	return (uint32_t)bytes_to_num(pwd, 4);
 }
 
+// Certain pwd generation algo nickname C.
+uint32_t ul_ev1_pwdgenC(uint8_t* uid){
+	uint32_t pwd = 0;
+	uint8_t base[] = {
+		0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x28,
+		0x63, 0x29, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x72,
+		0x69, 0x67, 0x68, 0x74, 0x20, 0x4c, 0x45, 0x47,
+		0x4f, 0x20, 0x32, 0x30, 0x31, 0x34, 0xaa, 0xaa
+	};
+
+	memcpy(base, uid, 7);
+
+	for (int i = 0; i < 32; i += 4) {
+		uint32_t b = *(uint32_t *)(base + i);
+		pwd = b + ROTR(pwd, 25) + ROTR(pwd, 10) - pwd;
+	}
+	return BSWAP_32(pwd);
+}
+
+// pack generation for algo 1-3
+uint16_t ul_ev1_packgenA(uint8_t* uid){
+	uint16_t pack = (uid[0] ^ uid[1] ^ uid[2]) << 8 | (uid[2] ^ 8);
+	return pack;
+}
+uint16_t ul_ev1_packgenB(uint8_t* uid){
+	return 0x8080;
+}
+uint16_t ul_ev1_packgenC(uint8_t* uid){
+	return 0xaa55;
+}
+
+
 void ul_ev1_pwdgen_selftest(){
 	
 	uint8_t uid1[] = {0x04,0x11,0x12,0x11,0x12,0x11,0x10};
@@ -109,6 +141,10 @@ void ul_ev1_pwdgen_selftest(){
 	uint8_t uid2[] = {0x04,0x1f,0x98,0xea,0x1e,0x3e,0x81};		
 	uint32_t pwd2 = ul_ev1_pwdgenB(uid2);
 	PrintAndLog("UID | %s | %08X | %s", sprint_hex(uid2,7), pwd2, (pwd2 == 0x5fd37eca)?"OK":"->5fd37eca<--");
+
+	uint8_t uid3[] = {0x04,0x62, 0xB6, 0x8A, 0xB4, 0x42, 0x80};
+	uint32_t pwd3 = ul_ev1_pwdgenC(uid3);
+	PrintAndLog("UID | %s | %08X | %s", sprint_hex(uid3,7), pwd3, (pwd3 == 0x5a349515)?"OK":"->5a349515<--");
 	return;
 }
 
@@ -915,6 +951,14 @@ int CmdHF14AMfUInfo(const char *Cmd){
 				PrintAndLog("Found a default password: %s || Pack: %02X %02X",sprint_hex(key, 4), pack[0], pack[1]);
 			}
 			if (!ul_auth_select( &card, tagtype, hasAuthKey, authkeyptr, pack, sizeof(pack))) return -1;
+
+			// test pwd gen C
+			num_to_bytes( ul_ev1_pwdgenC(card.uid), 4, key);
+			len = ulev1_requestAuthentication(key, pack, sizeof(pack));
+			if (len >= 1) {
+				PrintAndLog("Found a default password: %s || Pack: %02X %02X",sprint_hex(key, 4), pack[0], pack[1]);
+			}
+			if (!ul_auth_select( &card, tagtype, hasAuthKey, authkeyptr, pack, sizeof(pack))) return -1;			
 			
 			for (uint8_t i = 0; i < KEYS_PWD_COUNT; ++i ) {
 				key = default_pwd_pack[i];
@@ -1316,6 +1360,14 @@ int  usage_hf_mfu_gendiverse(void){
 	return 0;
 }
 
+int  usage_hf_mfu_pwdgen(void){
+	PrintAndLog("Usage:  hf mfu pwdgen <uid (14 hex symbols)>");
+	PrintAndLog("");
+	PrintAndLog("sample: hf mfu pwdgen 11223344556677");
+	PrintAndLog("");
+	return 0;
+}
+
 #define DUMP_PREFIX_LENGTH 48 
 //
 //  Mifare Ultralight / Ultralight-C / Ultralight-EV1
@@ -1403,6 +1455,7 @@ int CmdHF14AMfUDump(const char *Cmd){
 	//Validations
 	if(errors) return usage_hf_mfu_dump();
 
+	//if we entered a key in little endian and set the swapEndian switch - switch it...
 	if (swapEndian && hasAuthKey) 
 		authKeyPtr = SwapEndian64(authenticationkey, dataLen, (dataLen == 16) ? 8 : 4);
 
@@ -1469,28 +1522,8 @@ int CmdHF14AMfUDump(const char *Cmd){
 		}
 	}
 
-	// add keys to block dump
-	if (hasAuthKey) {
-		if (tagtype & UL_C){ //add 4 pages
-			memcpy(data + Pages*4, authKeyPtr, dataLen);
-			Pages += dataLen/4;  
-		} else { // 2nd page from end
-			memcpy(data + (Pages*4) - 8, authenticationkey, dataLen);
-		}
-	}
-
 	uint8_t	get_pack[] = {0,0};
 	iso14a_card_select_t card;
-	//attempt to read pack
-	if (!ul_auth_select( &card, tagtype, hasAuthKey, authKeyPtr, get_pack, sizeof(get_pack))) {
-		//reset pack
-		get_pack[0]=0;
-		get_pack[1]=0;
-	}
-	ul_switch_off_field();
-	// add pack to block read
-	memcpy(data + (Pages*4) - 4, get_pack, sizeof(get_pack));
-
 	uint8_t dump_file_data[1024+DUMP_PREFIX_LENGTH] = {0x00};
 	uint8_t get_version[] = {0,0,0,0,0,0,0,0,0};
 	uint8_t	get_tearing[] = {0,0,0};
@@ -1499,6 +1532,17 @@ int CmdHF14AMfUDump(const char *Cmd){
 	uint8_t	get_signature[32];
 	memset( get_signature, 0, sizeof(get_signature) );
 
+	// not ul_c and not std ul then attempt to get deeper info
+	if (!(tagtype & UL_C || tagtype & UL)) {
+		//attempt to read pack
+		if (!ul_auth_select( &card, tagtype, true, authKeyPtr, get_pack, sizeof(get_pack))) {
+			//reset pack
+			get_pack[0]=0;
+			get_pack[1]=0;
+		}
+		ul_switch_off_field();
+		// add pack to block read
+		memcpy(data + (Pages*4) - 4, get_pack, sizeof(get_pack));
 	if ( hasAuthKey )
 		ul_auth_select( &card, tagtype, hasAuthKey, authKeyPtr, dummy_pack, sizeof(dummy_pack));
 	else
@@ -1516,6 +1560,28 @@ int CmdHF14AMfUDump(const char *Cmd){
 		ul_select(&card);
 	ulev1_readSignature( get_signature, sizeof(get_signature));
 	ul_switch_off_field();
+	}
+
+	// format and add keys to block dump output
+	if (hasAuthKey) {
+		// if we didn't swapendian before - do it now for the sprint_hex call
+		// NOTE: default entry is bigendian (unless swapped), sprint_hex outputs little endian
+		//       need to swap to keep it the same
+		if (!swapEndian){
+			authKeyPtr = SwapEndian64(authenticationkey, dataLen, (dataLen == 16) ? 8 : 4);
+		} else {
+			authKeyPtr = authenticationkey;
+		}
+
+		if (tagtype & UL_C){ //add 4 pages
+			memcpy(data + Pages*4, authKeyPtr, dataLen);
+			Pages += dataLen/4;  
+		} else { // 2nd page from end
+			memcpy(data + (Pages*4) - 8, authenticationkey, dataLen);
+		}
+	}
+
+	//add *special* blocks to dump
 	//get version
 	memcpy(dump_file_data, get_version, sizeof(get_version));
 	//tearing
@@ -1524,9 +1590,10 @@ int CmdHF14AMfUDump(const char *Cmd){
 	memcpy(dump_file_data+13, get_pack, sizeof(get_pack));
 	//signature
 	memcpy(dump_file_data+16, get_signature, sizeof(get_signature));
-	//block read data
+	//add regular block read data to dump
 	memcpy(dump_file_data+DUMP_PREFIX_LENGTH, data, Pages*4);
 
+	PrintAndLog("\n*Special* block data:");
 	PrintAndLog("\nDataType| Data        |   | Ascii");
 	PrintAndLog("---------------------------------");
 	PrintAndLog("GetVer-1| %s|   | %.4s", sprint_hex(dump_file_data, 4), dump_file_data);
@@ -1543,12 +1610,11 @@ int CmdHF14AMfUDump(const char *Cmd){
 	PrintAndLog("Sig-6   | %s|   | %.4s", sprint_hex(dump_file_data+36, 4), dump_file_data+36);
 	PrintAndLog("Sig-7   | %s|   | %.4s", sprint_hex(dump_file_data+40, 4), dump_file_data+40);
 	PrintAndLog("Sig-8   | %s|   | %.4s", sprint_hex(dump_file_data+44, 4), dump_file_data+44);
-	
 	PrintAndLog("\nBlock#  | Data        |lck| Ascii");
 	PrintAndLog("---------------------------------");
 	for (i = 0; i < Pages; ++i) {
 		if ( i < 3 ) {
-			PrintAndLog("%02d/0x%02X | %s|   | ", i+startPage, i+startPage, sprint_hex(data + i * 4, 4));
+			PrintAndLog("%02d/0x%02X | %s|   | %.4s", i+startPage, i+startPage, sprint_hex(data + i * 4, 4), data + i * 4 );
 			continue;
 		}
 		switch(i){
@@ -1613,8 +1679,10 @@ int CmdHF14AMfUDump(const char *Cmd){
 		return 1;
 	}
 	fwrite( dump_file_data, 1, Pages*4 + DUMP_PREFIX_LENGTH, fout );
-	fclose(fout);
-	
+	if (fout) {
+		fclose(fout);
+		fout = NULL;
+	}
 	PrintAndLog("Dumped %d pages, wrote %d bytes to %s", Pages+(DUMP_PREFIX_LENGTH/4), Pages*4 + DUMP_PREFIX_LENGTH, filename);
 	return 0;
 }
@@ -1636,7 +1704,7 @@ int CmdHF14AMfucAuth(const char *Cmd){
 	//Change key to user defined one
 	if (cmdp == 'k' || cmdp == 'K'){
 		keyNo = param_get8(Cmd, 1);
-		if(keyNo > KEYS_3DES_COUNT) 
+		if(keyNo >= KEYS_3DES_COUNT) 
 			errors = true;
 	}
 
@@ -1794,6 +1862,7 @@ int CmdHF14AMfucSetUid(const char *Cmd){
 	UsbCommand resp;
 	uint8_t uid[7] = {0x00};
 	char cmdp = param_getchar(Cmd, 0);
+	
 	if (strlen(Cmd) == 0  || cmdp == 'h' || cmdp == 'H') return usage_hf_mfu_ucsetuid();
 
 	if (param_gethex(Cmd, 0, uid, 14)) {
@@ -1861,7 +1930,6 @@ int CmdHF14AMfucSetUid(const char *Cmd){
 int CmdHF14AMfuGenDiverseKeys(const char *Cmd){
 
 	uint8_t uid[4];	
-	
 	char cmdp = param_getchar(Cmd, 0);
 	if (strlen(Cmd) == 0  || cmdp == 'h' || cmdp == 'H') return usage_hf_mfu_gendiverse();
 
@@ -1959,6 +2027,20 @@ int CmdHF14AMfUSim(const char *Cmd) {
 	return CmdHF14ASim(Cmd);
 }
 
+int CmdHF14AMfuPwdGen(const char *Cmd){
+	uint8_t uid[7] = {0x00};	
+	char cmdp = param_getchar(Cmd, 0);
+	if (strlen(Cmd) == 0  || cmdp == 'h' || cmdp == 'H') return usage_hf_mfu_pwdgen();
+
+	if (param_gethex(Cmd, 0, uid, 14)) return usage_hf_mfu_pwdgen();
+	
+	PrintAndLog(" algo | pwd      | pack");
+	PrintAndLog("------+----------+-----");
+	PrintAndLog(" EV1  | %08X | %04X", ul_ev1_pwdgenA(uid), ul_ev1_packgenA(uid));
+	PrintAndLog(" Ami  | %08X | %04X", ul_ev1_pwdgenB(uid), ul_ev1_packgenB(uid));
+	PrintAndLog(" LD   | %08X | %04X", ul_ev1_pwdgenC(uid), ul_ev1_packgenC(uid));
+	return 0;
+}
 //------------------------------------
 // Menu Stuff
 //------------------------------------
@@ -1976,11 +2058,13 @@ static command_t CommandTable[] =
 	{"setuid",	CmdHF14AMfucSetUid, 0, "Set UID - MAGIC tags only"},
 	{"sim",		CmdHF14AMfUSim,     0, "Simulate Ultralight from emulator memory"},		
 	{"gen",		CmdHF14AMfuGenDiverseKeys , 1, "Generate 3des mifare diversified keys"},
+	{"pwdgen",	CmdHF14AMfuPwdGen, 1, "Generate pwd from known algos"},
 	{NULL, NULL, 0, NULL}
 };
 
 int CmdHFMFUltra(const char *Cmd){
-	WaitForResponseTimeout(CMD_ACK,NULL,100);
+	clearCommandBuffer();
+	//WaitForResponseTimeout(CMD_ACK,NULL,100);
 	CmdsParse(CommandTable, Cmd);
 	return 0;
 }