transactions MSD and M/Chip, qVSDC works

This commit is contained in:
merlokk 2017-12-02 21:47:30 +02:00
commit 10d4f82338
4 changed files with 226 additions and 19 deletions

View file

@ -283,6 +283,10 @@ int UsageCmdHFEMVExec(void) {
PrintAndLog(" -a : show APDU reqests and responses\n");
PrintAndLog(" -t : TLV decode results\n");
PrintAndLog(" -f : force search AID. Search AID instead of execute PPSE.\n");
PrintAndLog(" -v : transaction type - qVSDC or M/Chip.\n");
PrintAndLog(" -c : transaction type - qVSDC or M/Chip plus CDA (SDAD generation).\n");
PrintAndLog(" -x : transaction type - VSDC. For test only. Not a standart behavior.\n");
PrintAndLog("By default : transaction type - MSD.\n");
PrintAndLog("Samples:");
PrintAndLog(" hf emv pse -s -> select card");
PrintAndLog(" hf emv pse -s -t -a -> select card, show responses in TLV, show APDU");
@ -296,6 +300,7 @@ int CmdHFEMVExec(const char *cmd) {
bool showAPDU = false;
bool decodeTLV = false;
bool forceSearch = false;
enum TransactionType TrType = TT_MSD;
uint8_t buf[APDU_RES_LEN] = {0};
size_t len = 0;
@ -335,6 +340,18 @@ int CmdHFEMVExec(const char *cmd) {
case 'F':
forceSearch = true;
break;
case 'x':
case 'X':
TrType = TT_VSDC;
break;
case 'v':
case 'V':
TrType = TT_QVSDCMCHIP;
break;
case 'c':
case 'C':
TrType = TT_CDA;
break;
default:
PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp));
return 1;
@ -405,9 +422,24 @@ int CmdHFEMVExec(const char *cmd) {
PrintAndLog("\n* Init transaction parameters.");
//9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD
// TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
// TLV_ADD(0x9F66, "\x8e\x00\x00\x00"); // CDA
switch(TrType) {
case TT_MSD:
TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD
break;
// not standart for contactless. just for test.
case TT_VSDC:
TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC
break;
case TT_QVSDCMCHIP:
TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
break;
case TT_CDA:
TLV_ADD(0x9F66, "\x86\x80\x00\x00"); // CDA
break;
default:
TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
break;
}
//9F02:(Amount, Authorised (Numeric)) len:6
TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00");
//9F1A:(Terminal Country Code) len:2
@ -444,6 +476,7 @@ int CmdHFEMVExec(const char *cmd) {
PrintAndLog("\n* GPO.");
res = EMVGPO(true, pdol_data_tlv_data, pdol_data_tlv_data_len, buf, sizeof(buf), &len, &sw, tlvRoot);
free(pdol_data_tlv_data);
free(pdol_data_tlv);
if (res) {
@ -544,13 +577,27 @@ int CmdHFEMVExec(const char *cmd) {
break;
}
// transaction check
// get AIP
const struct tlv *AIPtlv = tlvdb_get(tlvRoot, 0x82, NULL);
uint16_t AIP = AIPtlv->value[0] + AIPtlv->value[1] * 0x100;
PrintAndLog("* * AIP=%x", AIP);
PrintAndLog("* * AIP=%04x", AIP);
// SDA
if (AIP & 0x0040) {
PrintAndLog("\n* SDA");
trSDA(AID, AIDlen, tlvRoot);
}
// DDA
if (AIP & 0x0020) {
PrintAndLog("\n* DDA");
}
// transaction check
// qVSDC
{
if (TrType == TT_QVSDCMCHIP|| TrType == TT_CDA){
// 9F26: Application Cryptogram
const struct tlv *AC = tlvdb_get(tlvRoot, 0x9F26, NULL);
if (AC) {
@ -587,19 +634,88 @@ int CmdHFEMVExec(const char *cmd) {
}
}
// TODO: Mastercard M/CHIP
{
// Mastercard M/CHIP
if (GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD && (TrType == TT_QVSDCMCHIP || TrType == TT_CDA)){
const struct tlv *CDOL1 = tlvdb_get(tlvRoot, 0x8c, NULL);
if (CDOL1 && GetCardPSVendor(AID, AIDlen) == CV_MASTERCARD) { // and m/chip transaction flag
PrintAndLog("\n--> Mastercard M/Chip transaction.");
PrintAndLog("* * Generate challenge");
res = EMVGenerateChallenge(true, buf, sizeof(buf), &len, &sw, tlvRoot);
if (res) {
PrintAndLog("ERROR GetChallenge. APDU error %4x", sw);
return 5;
}
if (len < 4) {
PrintAndLog("ERROR GetChallenge. Wrong challenge length %d", len);
return 5;
}
// ICC Dynamic Number
struct tlvdb * ICCDynN = tlvdb_fixed(0x9f4c, len, buf);
tlvdb_add(tlvRoot, ICCDynN);
if (decodeTLV){
PrintAndLog("\n* * ICC Dynamic Number:");
TLVPrintFromTLV(ICCDynN);
}
PrintAndLog("* * Calc CDOL1");
struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag
if (!cdol_data_tlv){
PrintAndLog("ERROR: can't create CDOL1 TLV.");
return 4;
}
PrintAndLog("CDOL1 data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len));
PrintAndLog("* * AC1");
// EMVAC_TC + EMVAC_CDAREQ --- to get SDAD
res = EMVAC(true, (TrType == TT_CDA) ? EMVAC_TC + EMVAC_CDAREQ : EMVAC_TC, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot);
free(cdol_data_tlv);
if (res) {
PrintAndLog("AC1 error(%d): %4x. Exit...", res, sw);
return 5;
}
if (decodeTLV)
TLVPrintFromBuffer(buf, len);
PrintAndLog("* M/Chip transaction result:");
// 9F27: Cryptogram Information Data (CID)
const struct tlv *CID = tlvdb_get(tlvRoot, 0x9F27, NULL);
if (CID) {
emv_tag_dump(CID, stdout, 0);
PrintAndLog("------------------------------");
if (CID->len > 0) {
switch(CID->value[0] & EMVAC_AC_MASK){
case EMVAC_AAC:
PrintAndLog("Transaction DECLINED.");
break;
case EMVAC_TC:
PrintAndLog("Transaction approved OFFLINE.");
break;
case EMVAC_ARQC:
PrintAndLog("Transaction approved ONLINE.");
break;
default:
PrintAndLog("ERROR: CID transaction code error %2x", CID->value[0] & EMVAC_AC_MASK);
break;
}
} else {
PrintAndLog("ERROR: Wrong CID length %d", CID->len);
}
} else {
PrintAndLog("ERROR: CID(9F27) not found.");
}
}
}
// MSD
if (AIP & 0x8000) {
if (AIP & 0x8000 && TrType == TT_MSD) {
PrintAndLog("\n--> MSD transaction.");
PrintAndLog("* MSD dCVV path. Check dCVV");
const struct tlv *track2 = tlvdb_get(tlvRoot, 0x57, NULL);
@ -624,7 +740,7 @@ int CmdHFEMVExec(const char *cmd) {
if (!UDOL)
PrintAndLog("Use default UDOL.");
struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - fake tag!
struct tlv *udol_data_tlv = dol_process(UDOL ? UDOL : &defUDOL, tlvRoot, 0x01); // 0x01 - dummy tag
if (!udol_data_tlv){
PrintAndLog("ERROR: can't create UDOL TLV.");
return 4;
@ -651,9 +767,6 @@ int CmdHFEMVExec(const char *cmd) {
}
}
// additional contacless EMV commands (fDDA, external authenticate)
// DropField
DropField();