X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/e464f6225860a0965e266732328d9d0948607c31..7b215d149ac4fd5709635111d86a2062fc7ac3ad:/client/emv/emvcore.c

diff --git a/client/emv/emvcore.c b/client/emv/emvcore.c
index 9264b110..08c6e3db 100644
--- a/client/emv/emvcore.c
+++ b/client/emv/emvcore.c
@@ -10,9 +10,103 @@
 
 #include "emvcore.h"
 
-static bool print_cb(void *data, const struct tlv *tlv) {
-	emv_tag_dump(tlv, stdout);
-	dump_buffer(tlv->value, tlv->len, stdout);
+// Got from here. Thanks)
+// https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
+static const char *PSElist [] = { 
+	"325041592E5359532E4444463031", // 2PAY.SYS.DDF01 - Visa Proximity Payment System Environment - PPSE
+	"315041592E5359532E4444463031"  // 1PAY.SYS.DDF01 - Visa Payment System Environment - PSE
+};
+//static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*);
+
+typedef struct {
+	enum CardPSVendor vendor;
+	const char* aid;
+} TAIDList;
+
+static const TAIDList AIDlist [] = { 
+	// Visa International
+	{ CV_VISA, 	"A00000000305076010"},			// VISA ELO Credit	
+	{ CV_VISA, 	"A0000000031010" },				// VISA Debit/Credit (Classic)	
+	{ CV_VISA, 	"A000000003101001" },			// VISA Credit	
+	{ CV_VISA, 	"A000000003101002" },			// VISA Debit	
+	{ CV_VISA, 	"A0000000032010" },				// VISA Electron
+	{ CV_VISA, 	"A0000000032020" },				// VISA	
+	{ CV_VISA, 	"A0000000033010" },				// VISA Interlink	
+	{ CV_VISA, 	"A0000000034010" },				// VISA Specific	
+	{ CV_VISA, 	"A0000000035010" },				// VISA Specific	
+	{ CV_VISA, 	"A0000000036010" },				// Domestic Visa Cash Stored Value	
+	{ CV_VISA, 	"A0000000036020" },				// International Visa Cash Stored Value	
+	{ CV_VISA, 	"A0000000038002" },				// VISA Auth, VisaRemAuthen EMV-CAP (DPA)	
+	{ CV_VISA, 	"A0000000038010" },				// VISA Plus	
+	{ CV_VISA, 	"A0000000039010" },				// VISA Loyalty	
+	{ CV_VISA, 	"A000000003999910" },			// VISA Proprietary ATM	
+	// Visa USA
+	{ CV_VISA, 	"A000000098" },					// Debit Card
+	{ CV_VISA, 	"A0000000980848" },				// Debit Card
+	// Mastercard International
+	{ CV_MASTERCARD, "A00000000401" },			// MasterCard PayPass	
+	{ CV_MASTERCARD, "A0000000041010" },		// MasterCard Credit
+	{ CV_MASTERCARD, "A00000000410101213" },	// MasterCard Credit
+	{ CV_MASTERCARD, "A00000000410101215" },	// MasterCard Credit
+	{ CV_MASTERCARD, "A0000000042010" },		// MasterCard Specific
+	{ CV_MASTERCARD, "A0000000043010" },		// MasterCard Specific
+	{ CV_MASTERCARD, "A0000000043060" },		// Maestro (Debit)
+	{ CV_MASTERCARD, "A000000004306001" },		// Maestro (Debit)
+	{ CV_MASTERCARD, "A0000000044010" },		// MasterCard Specific
+	{ CV_MASTERCARD, "A0000000045010" },		// MasterCard Specific
+	{ CV_MASTERCARD, "A0000000046000" },		// Cirrus
+	{ CV_MASTERCARD, "A0000000048002" },		// SecureCode Auth EMV-CAP
+	{ CV_MASTERCARD, "A0000000049999" },		// MasterCard PayPass	
+	// American Express
+	{ CV_AMERICANEXPRESS, "A000000025" },
+	{ CV_AMERICANEXPRESS, "A0000000250000" },
+	{ CV_AMERICANEXPRESS, "A00000002501" },
+	{ CV_AMERICANEXPRESS, "A000000025010402" },
+	{ CV_AMERICANEXPRESS, "A000000025010701" },
+	{ CV_AMERICANEXPRESS, "A000000025010801" },
+	// Groupement des Cartes Bancaires "CB"
+	{ CV_CB, "A0000000421010" },				// Cartes Bancaire EMV Card	
+	{ CV_CB, "A0000000422010" },		
+	{ CV_CB, "A0000000423010" },		
+	{ CV_CB, "A0000000424010" },		
+	{ CV_CB, "A0000000425010" },		
+	// JCB CO., LTD.
+	{ CV_JCB, "A00000006510" },					// JCB	
+	{ CV_JCB, "A0000000651010" },				// JCB J Smart Credit	
+	// Other
+	{ CV_OTHER, "A0000001544442" },				// Banricompras Debito - Banrisul - Banco do Estado do Rio Grande do SUL - S.A.
+	{ CV_OTHER, "F0000000030001" },				// BRADESCO
+	{ CV_OTHER, "A0000005241010" },				// RuPay - RuPay
+	{ CV_OTHER, "D5780000021010" }				// Bankaxept - Bankaxept
+};
+static const size_t AIDlistLen = sizeof(AIDlist)/sizeof(TAIDList);
+
+static bool APDULogging = false;
+void SetAPDULogging(bool logging) {
+	APDULogging = logging;
+}
+
+enum CardPSVendor GetCardPSVendor(uint8_t * AID, size_t AIDlen) {
+	char buf[100] = {0};
+	if (AIDlen < 1)
+		return CV_NA;
+
+	hex_to_buffer((uint8_t *)buf, AID, AIDlen, sizeof(buf) - 1, 0, 0, true);
+
+	for(int i = 0; i < AIDlistLen; i ++) {
+		if (strncmp(AIDlist[i].aid, buf, strlen(AIDlist[i].aid)) == 0){
+			return AIDlist[i].vendor;
+		}
+	}	
+	
+	return CV_NA;
+}
+
+static bool print_cb(void *data, const struct tlv *tlv, int level, bool is_leaf) {
+	emv_tag_dump(tlv, stdout, level);
+	if (is_leaf) {
+		dump_buffer(tlv->value, tlv->len, stdout, level);
+	}
 
 	return true;
 }
@@ -21,11 +115,727 @@ void TLVPrintFromBuffer(uint8_t *data, int datalen) {
 	struct tlvdb *t = NULL;
 	t = tlvdb_parse_multi(data, datalen);
 	if (t) {
-		PrintAndLog("TLV decoded:");
+		PrintAndLog("-------------------- TLV decoded --------------------");
 		
-		tlvdb_visit(t, print_cb, NULL);
+		tlvdb_visit(t, print_cb, NULL, 0);
 		tlvdb_free(t);
 	} else {
 		PrintAndLog("TLV ERROR: Can't parse response as TLV tree.");
 	}
 }
+
+void TLVPrintFromTLVLev(struct tlvdb *tlv, int level) {
+	if (!tlv) 
+		return;
+	
+	tlvdb_visit(tlv, print_cb, NULL, level);
+}
+
+void TLVPrintFromTLV(struct tlvdb *tlv) {
+	TLVPrintFromTLVLev(tlv, 0);
+}
+
+void TLVPrintAIDlistFromSelectTLV(struct tlvdb *tlv) {
+	PrintAndLog("|------------------|--------|-------------------------|");
+	PrintAndLog("|    AID           |Priority| Name                    |");
+	PrintAndLog("|------------------|--------|-------------------------|");
+
+	struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
+	if (!ttmp)
+		PrintAndLog("|                         none                        |");
+		
+	while (ttmp) {
+		const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
+		const struct tlv *tgName = tlvdb_get_inchild(ttmp, 0x50, NULL);
+		const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
+		if (!tgAID)
+			break;
+		PrintAndLog("|%s|   %s  |%s|", 
+			sprint_hex_inrow_ex(tgAID->value, tgAID->len, 18), 
+			(tgPrio) ? sprint_hex(tgPrio->value, 1) : "   ", 
+			(tgName) ? sprint_ascii_ex(tgName->value, tgName->len, 25) : "                         ");
+		
+		ttmp = tlvdb_find_next(ttmp, 0x6f);
+	}
+
+	PrintAndLog("|------------------|--------|-------------------------|");
+}
+
+struct tlvdb *GetPANFromTrack2(const struct tlv *track2) {
+	char track2Hex[200] = {0};
+	uint8_t PAN[100] = {0};
+	int PANlen = 0;
+	char *tmp = track2Hex;
+
+	if (!track2)
+		return NULL;
+
+	for (int i = 0; i < track2->len; ++i, tmp += 2)
+		sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
+	
+	int posD = strchr(track2Hex, 'd') - track2Hex;
+	if (posD < 1)
+		return NULL;
+	
+	track2Hex[posD] = 0;
+	if (strlen(track2Hex) % 2) {
+		track2Hex[posD] = 'F';
+		track2Hex[posD + 1] = '\0';
+	}
+	
+	param_gethex_to_eol(track2Hex, 0, PAN, sizeof(PAN), &PANlen);
+	
+  return tlvdb_fixed(0x5a, PANlen, PAN);
+}
+
+struct tlvdb *GetdCVVRawFromTrack2(const struct tlv *track2) {
+	char track2Hex[200] = {0};
+	char dCVVHex[100] = {0};
+	uint8_t dCVV[100] = {0};
+	int dCVVlen = 0;
+	const int PINlen = 5; // must calculated from 9F67 MSD Offset but i have not seen this tag)
+	char *tmp = track2Hex;
+	
+	if (!track2)
+		return NULL;
+	
+	for (int i = 0; i < track2->len; ++i, tmp += 2)
+		sprintf(tmp, "%02x", (unsigned int)track2->value[i]);
+	
+	int posD = strchr(track2Hex, 'd') - track2Hex;
+	if (posD < 1)
+		return NULL;
+
+	memset(dCVVHex, '0', 32);
+	// ATC
+	memcpy(dCVVHex + 0, track2Hex + posD + PINlen + 11, 4);
+	// PAN 5 hex
+	memcpy(dCVVHex + 4, track2Hex, 5);
+	// expire date
+	memcpy(dCVVHex + 9, track2Hex + posD + 1, 4);
+	// service code
+	memcpy(dCVVHex + 13, track2Hex + posD + 5, 3);
+	
+	param_gethex_to_eol(dCVVHex, 0, dCVV, sizeof(dCVV), &dCVVlen);
+	
+  return tlvdb_fixed(0x02, dCVVlen, dCVV);
+}
+
+int EMVExchangeEx(bool ActivateField, bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	uint8_t data[APDU_RES_LEN] = {0};
+
+	*ResultLen = 0;
+	if (sw)	*sw = 0;
+	uint16_t isw = 0;
+	
+	if (ActivateField)
+		DropField();
+	
+	// COMPUTE APDU
+	memcpy(data, &apdu, 5);
+	if (apdu.data)
+		memcpy(&data[5], apdu.data, apdu.Lc);
+	
+	if (APDULogging)
+		PrintAndLog(">>>> %s", sprint_hex(data, 6 + apdu.Lc));
+
+	// 6 byes + data = INS + CLA + P1 + P2 + Lc + <data = Nc> + Le
+	int res = ExchangeAPDU14a(data, 6 + apdu.Lc, ActivateField, LeaveFieldON, Result, (int)MaxResultLen, (int *)ResultLen);
+	
+	if (res) {
+		return res;
+	}
+
+	if (APDULogging)
+		PrintAndLog("<<<< %s", sprint_hex(Result, *ResultLen));
+
+	*ResultLen -= 2;
+	isw = Result[*ResultLen] * 0x0100 + Result[*ResultLen + 1];
+	if (sw)
+		*sw = isw;
+
+	if (isw != 0x9000) {
+		if (APDULogging)
+			PrintAndLog("APDU(%02x%02x) ERROR: [%4X] %s", apdu.CLA, apdu.INS, isw, GetAPDUCodeDescription(*sw >> 8, *sw & 0xff));
+		return 5;
+	}
+
+	// add to tlv tree
+	if (tlv) {
+		struct tlvdb *t = tlvdb_parse_multi(Result, *ResultLen);
+		tlvdb_add(tlv, t);
+	}
+	
+	return 0;
+}
+
+int EMVExchange(bool LeaveFieldON, sAPDU apdu, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchangeEx(false, LeaveFieldON, apdu, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVSelect(bool ActivateField, bool LeaveFieldON, uint8_t *AID, size_t AIDLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchangeEx(ActivateField, LeaveFieldON, (sAPDU){0x00, 0xa4, 0x04, 0x00, AIDLen, AID}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVSelectPSE(bool ActivateField, bool LeaveFieldON, uint8_t PSENum, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw) {
+	uint8_t buf[APDU_AID_LEN] = {0};
+	*ResultLen = 0;
+	int len = 0;
+	int res = 0;
+	switch (PSENum) {
+		case 1:
+			param_gethex_to_eol(PSElist[1], 0, buf, sizeof(buf), &len);
+			break;
+		case 2:
+			param_gethex_to_eol(PSElist[0], 0, buf, sizeof(buf), &len);
+			break;
+		default:
+			return -1;
+	}
+	
+	// select
+	res = EMVSelect(ActivateField, LeaveFieldON, buf, len, Result, MaxResultLen, ResultLen, sw, NULL);
+
+	return res;
+}
+
+int EMVSearchPSE(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) {
+	uint8_t data[APDU_RES_LEN] = {0};
+	size_t datalen = 0;
+	uint16_t sw = 0;
+	int res;
+
+	// select PPSE
+	res = EMVSelectPSE(ActivateField, true, 2, data, sizeof(data), &datalen, &sw);
+
+	if (!res){
+		struct tlvdb *t = NULL;
+		t = tlvdb_parse_multi(data, datalen);
+		if (t) {
+			int retrycnt = 0;
+			struct tlvdb *ttmp = tlvdb_find_path(t, (tlv_tag_t[]){0x6f, 0xa5, 0xbf0c, 0x61, 0x00});
+			if (!ttmp)
+				PrintAndLog("PPSE don't have records.");
+			
+			while (ttmp) {
+				const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x4f, NULL);
+				if (tgAID) {
+					res = EMVSelect(false, true, (uint8_t *)tgAID->value, tgAID->len, data, sizeof(data), &datalen, &sw, tlv);
+
+					// retry if error and not returned sw error
+					if (res && res != 5) {
+						if (++retrycnt < 3){
+							continue;
+						} else {
+							// card select error, proxmark error
+							if (res == 1) {
+								PrintAndLog("Exit...");
+								return 1;
+							}
+							
+							retrycnt = 0;
+							PrintAndLog("Retry failed [%s]. Skiped...", sprint_hex_inrow(tgAID->value, tgAID->len));
+						}
+						
+						// next element
+						ttmp = tlvdb_find_next(ttmp, 0x61);
+						continue;
+					}
+					retrycnt = 0;
+
+					// all is ok
+					if (decodeTLV){
+						PrintAndLog("%s:", sprint_hex_inrow(tgAID->value, tgAID->len));
+						TLVPrintFromBuffer(data, datalen);
+					}
+				}
+				
+				ttmp = tlvdb_find_next(ttmp, 0x61);
+			}
+
+			tlvdb_free(t);
+		} else {
+			PrintAndLog("PPSE ERROR: Can't get TLV from response.");
+		}		
+	} else {
+		PrintAndLog("PPSE ERROR: Can't select PPSE AID. Error: %d", res);
+	}
+	
+	if(!LeaveFieldON)
+		DropField();
+	
+	return res;
+}
+
+int EMVSearch(bool ActivateField, bool LeaveFieldON, bool decodeTLV, struct tlvdb *tlv) {
+	uint8_t aidbuf[APDU_AID_LEN] = {0};
+	int aidlen = 0;
+	uint8_t data[APDU_RES_LEN] = {0};
+	size_t datalen = 0;
+	uint16_t sw = 0;
+	
+	int res = 0;
+	int retrycnt = 0;
+	for(int i = 0; i < AIDlistLen; i ++) {
+		param_gethex_to_eol(AIDlist[i].aid, 0, aidbuf, sizeof(aidbuf), &aidlen);
+		res = EMVSelect((i == 0) ? ActivateField : false, (i == AIDlistLen - 1) ? LeaveFieldON : true, aidbuf, aidlen, data, sizeof(data), &datalen, &sw, tlv);
+		// retry if error and not returned sw error
+		if (res && res != 5) {
+			if (++retrycnt < 3){
+				i--;
+			} else {
+				// card select error, proxmark error
+				if (res == 1) {
+					PrintAndLog("Exit...");
+					return 1;
+				}
+				
+				retrycnt = 0;
+				PrintAndLog("Retry failed [%s]. Skiped...", AIDlist[i].aid);
+			}
+			continue;
+		}
+		retrycnt = 0;
+		
+		if (res)
+			continue;
+		
+		if (decodeTLV){
+			PrintAndLog("%s:", AIDlist[i].aid);
+			TLVPrintFromBuffer(data, datalen);
+		}
+	}
+
+	return 0;
+}
+
+int EMVSelectApplication(struct tlvdb *tlv, uint8_t *AID, size_t *AIDlen) {
+	// check priority. 0x00 - highest
+	int prio = 0xffff;
+	
+	*AIDlen = 0;
+
+	struct tlvdb *ttmp = tlvdb_find(tlv, 0x6f);
+	if (!ttmp)
+		return 1;
+		
+	while (ttmp) {
+		const struct tlv *tgAID = tlvdb_get_inchild(ttmp, 0x84, NULL);
+		const struct tlv *tgPrio = tlvdb_get_inchild(ttmp, 0x87, NULL);
+		
+		if (!tgAID)
+			break;
+
+		if (tgPrio) {
+			int pt = bytes_to_num((uint8_t*)tgPrio->value, (tgPrio->len < 2) ? tgPrio->len : 2); 
+			if (pt < prio) {
+				prio = pt;
+				
+				memcpy(AID, tgAID->value, tgAID->len);
+				*AIDlen = tgAID->len;
+			}
+		} else {
+			// takes the first application from list wo priority
+			if (!*AIDlen) {
+			memcpy(AID, tgAID->value, tgAID->len);
+			*AIDlen = tgAID->len;				
+			}
+		}
+		
+		ttmp = tlvdb_find_next(ttmp, 0x6f);
+	}
+	
+	return 0;
+}
+
+int EMVGPO(bool LeaveFieldON, uint8_t *PDOL, size_t PDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0xa8, 0x00, 0x00, PDOLLen, PDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVReadRecord(bool LeaveFieldON, uint8_t SFI, uint8_t SFIrec, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0xb2, SFIrec, (SFI << 3) | 0x04, 0, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVAC(bool LeaveFieldON, uint8_t RefControl, uint8_t *CDOL, size_t CDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0xae, RefControl, 0x00, CDOLLen, CDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVGenerateChallenge(bool LeaveFieldON, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x84, 0x00, 0x00, 0x00, NULL}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int EMVInternalAuthenticate(bool LeaveFieldON, uint8_t *DDOL, size_t DDOLLen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchange(LeaveFieldON, (sAPDU){0x00, 0x88, 0x00, 0x00, DDOLLen, DDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+int MSCComputeCryptoChecksum(bool LeaveFieldON, uint8_t *UDOL, uint8_t UDOLlen, uint8_t *Result, size_t MaxResultLen, size_t *ResultLen, uint16_t *sw, struct tlvdb *tlv) {
+	return EMVExchange(LeaveFieldON, (sAPDU){0x80, 0x2a, 0x8e, 0x80, UDOLlen, UDOL}, Result, MaxResultLen, ResultLen, sw, tlv);
+}
+
+// Authentication 
+static struct emv_pk *get_ca_pk(struct tlvdb *db) {
+	const struct tlv *df_tlv = tlvdb_get(db, 0x84, NULL);
+	const struct tlv *caidx_tlv = tlvdb_get(db, 0x8f, NULL);
+
+	if (!df_tlv || !caidx_tlv || df_tlv->len < 6 || caidx_tlv->len != 1)
+		return NULL;
+
+	PrintAndLog("CA public key index 0x%0x", caidx_tlv->value[0]);
+	return emv_pk_get_ca_pk(df_tlv->value, caidx_tlv->value[0]);
+}
+
+int trSDA(struct tlvdb *tlv) {
+
+	struct emv_pk *pk = get_ca_pk(tlv);
+	if (!pk) {
+		PrintAndLog("ERROR: Key not found. Exit.");
+		return 2;
+	}
+	
+	struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+	if (!issuer_pk) {
+		emv_pk_free(pk);
+		PrintAndLog("ERROR: Issuer certificate not found. Exit.");
+		return 2;
+	}
+
+	PrintAndLog("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
+		issuer_pk->rid[0],
+		issuer_pk->rid[1],
+		issuer_pk->rid[2],
+		issuer_pk->rid[3],
+		issuer_pk->rid[4],
+		issuer_pk->index,
+		issuer_pk->serial[0],
+		issuer_pk->serial[1],
+		issuer_pk->serial[2]
+		);
+
+	const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+	if (!sda_tlv || sda_tlv->len < 1) {
+		emv_pk_free(issuer_pk);
+		emv_pk_free(pk);
+		PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
+		return 3;
+	}
+	
+	struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
+	if (dac_db) {
+		const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
+		PrintAndLog("SDA verified OK. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
+		tlvdb_add(tlv, dac_db);
+	} else {
+		emv_pk_free(issuer_pk);
+		emv_pk_free(pk);
+		PrintAndLog("ERROR: SSAD verify error");
+		return 4;
+	}
+	
+	emv_pk_free(issuer_pk);
+	emv_pk_free(pk);
+	return 0;
+}
+
+static const unsigned char default_ddol_value[] = {0x9f, 0x37, 0x04};
+static struct tlv default_ddol_tlv = {.tag = 0x9f49, .len = 3, .value = default_ddol_value };
+
+int trDDA(bool decodeTLV, struct tlvdb *tlv) {
+	uint8_t buf[APDU_RES_LEN] = {0};
+	size_t len = 0;
+	uint16_t sw = 0;
+
+	struct emv_pk *pk = get_ca_pk(tlv);
+	if (!pk) {
+		PrintAndLog("ERROR: Key not found. Exit.");
+		return 2;
+	}
+
+	const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+	if (!sda_tlv || sda_tlv->len < 1) {
+		emv_pk_free(pk);
+		PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
+		return 3;
+	}
+
+	struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+	if (!issuer_pk) {
+		emv_pk_free(pk);
+		PrintAndLog("ERROR: Issuer certificate not found. Exit.");
+		return 2;
+	}
+	printf("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+			issuer_pk->rid[0],
+			issuer_pk->rid[1],
+			issuer_pk->rid[2],
+			issuer_pk->rid[3],
+			issuer_pk->rid[4],
+			issuer_pk->index,
+			issuer_pk->serial[0],
+			issuer_pk->serial[1],
+			issuer_pk->serial[2]
+			);
+				
+	struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
+	if (!icc_pk) {
+		emv_pk_free(pk);
+		emv_pk_free(issuer_pk);
+		PrintAndLog("ERROR: ICC setrificate not found. Exit.");
+		return 2;
+	}
+	printf("ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+			icc_pk->rid[0],
+			icc_pk->rid[1],
+			icc_pk->rid[2],
+			icc_pk->rid[3],
+			icc_pk->rid[4],
+			icc_pk->index,
+			icc_pk->serial[0],
+			icc_pk->serial[1],
+			icc_pk->serial[2]
+			);
+
+	struct emv_pk *icc_pe_pk = emv_pki_recover_icc_pe_cert(issuer_pk, tlv);
+	if (!icc_pe_pk) {
+		PrintAndLog("WARNING: ICC PE PK recover error. ");
+	} else {
+		printf("ICC PE PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+				icc_pe_pk->rid[0],
+				icc_pe_pk->rid[1],
+				icc_pe_pk->rid[2],
+				icc_pe_pk->rid[3],
+				icc_pe_pk->rid[4],
+				icc_pe_pk->index,
+				icc_pe_pk->serial[0],
+				icc_pe_pk->serial[1],
+				icc_pe_pk->serial[2]
+				);
+	}
+
+	// 9F4B: Signed Dynamic Application Data
+	const struct tlv *sdad_tlv = tlvdb_get(tlv, 0x9f4b, NULL);
+	// DDA with internal authenticate OR fDDA with filled 0x9F4B tag (GPO result)
+	// EMV kernel3 v2.4, contactless book C-3, C.1., page 147
+	if (sdad_tlv) {
+		PrintAndLog("\n* * Got Signed Dynamic Application Data (9F4B) form GPO. Maybe fDDA...");
+
+		const struct tlvdb *atc_db = emv_pki_recover_atc_ex(icc_pk, tlv, true);
+		if (!atc_db) {
+			PrintAndLog("ERROR: Can't recover IDN (ICC Dynamic Number)");
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 8;
+		}
+
+		// 9f36 Application Transaction Counter (ATC)
+		const struct tlv *atc_tlv = tlvdb_get(atc_db, 0x9f36, NULL);
+		if(atc_tlv) {
+			PrintAndLog("\nATC (Application Transaction Counter) [%zu] %s", atc_tlv->len, sprint_hex_inrow(atc_tlv->value, atc_tlv->len));
+			
+			const struct tlv *core_atc_tlv = tlvdb_get(tlv, 0x9f36, NULL);
+			if(tlv_equal(core_atc_tlv, atc_tlv)) {
+				PrintAndLog("ATC check OK.");
+				PrintAndLog("fDDA (fast DDA) verified OK.");
+			} else {
+				PrintAndLog("ERROR: fDDA verified, but ATC in the certificate and ATC in the record not the same.");
+			}
+		} else {
+			PrintAndLog("\nERROR: fDDA (fast DDA) verify error");
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 9;
+		}
+	} else {
+		struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
+		if (dac_db) {
+			const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
+			printf("SDA verified OK. (%02hhx:%02hhx)\n", dac_tlv->value[0], dac_tlv->value[1]);
+			tlvdb_add(tlv, dac_db);
+		} else {
+			PrintAndLog("ERROR: SSAD verify error");
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 4;
+		}
+		
+		PrintAndLog("\n* Calc DDOL");
+		const struct tlv *ddol_tlv = tlvdb_get(tlv, 0x9f49, NULL);
+		if (!ddol_tlv) {
+			ddol_tlv = &default_ddol_tlv;
+			PrintAndLog("DDOL [9f49] not found. Using default DDOL");
+		}
+
+		struct tlv *ddol_data_tlv = dol_process(ddol_tlv, tlv, 0);
+		if (!ddol_data_tlv) {
+			PrintAndLog("ERROR: Can't create DDOL TLV");
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 5;
+		}
+
+		PrintAndLog("DDOL data[%d]: %s", ddol_data_tlv->len, sprint_hex(ddol_data_tlv->value, ddol_data_tlv->len));
+
+		PrintAndLog("\n* Internal Authenticate");
+		int res = EMVInternalAuthenticate(true, (uint8_t *)ddol_data_tlv->value, ddol_data_tlv->len, buf, sizeof(buf), &len, &sw, NULL);
+		if (res) {	
+			PrintAndLog("Internal Authenticate error(%d): %4x. Exit...", res, sw);
+			free(ddol_data_tlv);
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 6;
+		}
+
+		struct tlvdb *dda_db = NULL;
+		if (buf[0] == 0x80) {
+			if (len < 3 ) {
+				PrintAndLog("ERROR: Internal Authenticate format1 parsing error. length=%d", len);
+			} else {
+				// 9f4b Signed Dynamic Application Data
+				dda_db = tlvdb_fixed(0x9f4b, len - 2, buf + 2);
+				tlvdb_add(tlv, dda_db);
+				if (decodeTLV){
+					PrintAndLog("* * Decode response format 1:");
+					TLVPrintFromTLV(dda_db);
+				}
+			}
+		} else {
+			dda_db = tlvdb_parse_multi(buf, len);
+			if(!dda_db) {
+				PrintAndLog("ERROR: Can't parse Internal Authenticate result as TLV");
+				free(ddol_data_tlv);
+				emv_pk_free(pk);
+				emv_pk_free(issuer_pk);
+				emv_pk_free(icc_pk);
+				return 7;
+			}
+			tlvdb_add(tlv, dda_db);
+			
+			if (decodeTLV)
+				TLVPrintFromTLV(dda_db);
+		}
+
+		struct tlvdb *idn_db = emv_pki_recover_idn_ex(icc_pk, dda_db, ddol_data_tlv, true);
+		free(ddol_data_tlv);
+		if (!idn_db) {
+			PrintAndLog("ERROR: Can't recover IDN (ICC Dynamic Number)");
+			tlvdb_free(dda_db);
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 8;
+		}
+		tlvdb_free(dda_db);
+
+		// 9f4c ICC Dynamic Number
+		const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
+		if(idn_tlv) {
+			PrintAndLog("\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
+			PrintAndLog("DDA verified OK.");
+			tlvdb_add(tlv, idn_db);
+			tlvdb_free(idn_db);
+		} else {
+			PrintAndLog("\nERROR: DDA verify error");
+			tlvdb_free(idn_db);
+
+			emv_pk_free(pk);
+			emv_pk_free(issuer_pk);
+			emv_pk_free(icc_pk);
+			return 9;
+		}
+	}
+	
+	emv_pk_free(pk);
+	emv_pk_free(issuer_pk);
+	emv_pk_free(icc_pk);
+	return 0;
+}
+
+int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, struct tlv *ac_data_tlv) {
+
+	struct emv_pk *pk = get_ca_pk(tlv);
+	if (!pk) {
+		PrintAndLog("ERROR: Key not found. Exit.");
+		return 2;
+	}
+
+	const struct tlv *sda_tlv = tlvdb_get(tlv, 0x21, NULL);
+	if (!sda_tlv || sda_tlv->len < 1) {
+		PrintAndLog("ERROR: Can't find input list for Offline Data Authentication. Exit.");
+		emv_pk_free(pk);
+		return 3;
+	}
+
+	struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlv);
+	if (!issuer_pk) {
+		PrintAndLog("ERROR: Issuer certificate not found. Exit.");
+		emv_pk_free(pk);
+		return 2;
+	}
+	printf("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+			issuer_pk->rid[0],
+			issuer_pk->rid[1],
+			issuer_pk->rid[2],
+			issuer_pk->rid[3],
+			issuer_pk->rid[4],
+			issuer_pk->index,
+			issuer_pk->serial[0],
+			issuer_pk->serial[1],
+			issuer_pk->serial[2]
+			);
+				
+	struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlv, sda_tlv);
+	if (!icc_pk) {
+		PrintAndLog("ERROR: ICC setrificate not found. Exit.");
+		emv_pk_free(pk);
+		emv_pk_free(issuer_pk);
+		return 2;
+	}
+	printf("ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
+			icc_pk->rid[0],
+			icc_pk->rid[1],
+			icc_pk->rid[2],
+			icc_pk->rid[3],
+			icc_pk->rid[4],
+			icc_pk->index,
+			icc_pk->serial[0],
+			icc_pk->serial[1],
+			icc_pk->serial[2]
+			);
+
+	struct tlvdb *dac_db = emv_pki_recover_dac(issuer_pk, tlv, sda_tlv);
+	if (dac_db) {
+		const struct tlv *dac_tlv = tlvdb_get(dac_db, 0x9f45, NULL);
+		PrintAndLog("SSAD verified OK. (%02hhx:%02hhx)", dac_tlv->value[0], dac_tlv->value[1]);
+		tlvdb_add(tlv, dac_db);
+	} else {
+		PrintAndLog("ERROR: SSAD verify error");
+		emv_pk_free(pk);
+		emv_pk_free(issuer_pk);
+		emv_pk_free(icc_pk);
+		return 4;
+	}
+	
+	PrintAndLog("\n* * Check Signed Dynamic Application Data (SDAD)");
+	struct tlvdb *idn_db = emv_pki_perform_cda_ex(icc_pk, tlv, ac_tlv,
+			pdol_data_tlv, // pdol
+			ac_data_tlv,   // cdol1
+			NULL,          // cdol2 
+			true);
+	if (idn_db) {
+		const struct tlv *idn_tlv = tlvdb_get(idn_db, 0x9f4c, NULL);
+		PrintAndLog("\nIDN (ICC Dynamic Number) [%zu] %s", idn_tlv->len, sprint_hex_inrow(idn_tlv->value, idn_tlv->len));
+		PrintAndLog("CDA verified OK.");
+		tlvdb_add(tlv, idn_db);
+	} else {
+		PrintAndLog("\nERROR: CDA verify error");
+	}
+
+	emv_pk_free(pk);
+	emv_pk_free(issuer_pk);
+	emv_pk_free(icc_pk);
+	return 0;
+}