+ CLIParserInit("hf emv genac",
+ "Generate Application Cryptogram command. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.",
+ "Usage:\n\thf emv genac -k 0102 -> generate AC with 2-byte CDOLdata and keep field ON after command\n"
+ "\thf emv genac -t 01020304 -> generate AC with 4-byte CDOL data, show result in TLV\n"
+ "\thf emv genac -Daac 01020304 -> generate AC with 4-byte CDOL data and terminal decision 'declined'\n");
+
+ void* argtable[] = {
+ arg_param_begin,
+ arg_lit0("kK", "keep", "keep field ON for next command"),
+ arg_lit0("cC", "cda", "executes CDA transaction. Needs to get SDAD in results."),
+ arg_str0("dD", "decision", "<aac|tc|arqc>", "Terminal decision. aac - declined, tc - approved, arqc - online authorisation requested"),
+ arg_lit0("aA", "apdu", "show APDU reqests and responses"),
+ arg_lit0("tT", "tlv", "TLV decode results of selected applets"),
+ arg_strx1(NULL, NULL, "<HEX CDOLdata>", NULL),
+ arg_param_end
+ };
+ CLIExecWithReturn(cmd, argtable, false);
+
+ bool leaveSignalON = arg_get_lit(1);
+ bool trTypeCDA = arg_get_lit(2);
+ uint8_t termDecision = 0xff;
+ if (arg_get_str_len(3)) {
+ if (!strncmp(arg_get_str(3)->sval[0], "aac", 4))
+ termDecision = EMVAC_AAC;
+ if (!strncmp(arg_get_str(3)->sval[0], "tc", 4))
+ termDecision = EMVAC_TC;
+ if (!strncmp(arg_get_str(3)->sval[0], "arqc", 4))
+ termDecision = EMVAC_ARQC;
+
+ if (termDecision == 0xff) {
+ PrintAndLog("ERROR: can't find terminal decision '%s'", arg_get_str(3)->sval[0]);
+ return 1;
+ }
+ } else {
+ termDecision = EMVAC_TC;
+ }
+ if (trTypeCDA)
+ termDecision = termDecision | EMVAC_CDAREQ;
+ bool APDULogging = arg_get_lit(4);
+ bool decodeTLV = arg_get_lit(5);
+ CLIGetStrWithReturn(6, data, &datalen);
+ CLIParserFree();
+
+ SetAPDULogging(APDULogging);
+
+ // Init TLV tree
+ const char *alr = "Root terminal TLV tree";
+ struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr);
+
+ // calc CDOL
+ struct tlv *cdol_data_tlv = NULL;
+// struct tlv *cdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x8c, NULL), tlvRoot, 0x01); // 0x01 - dummy tag
+ struct tlv data_tlv = {
+ .tag = 0x01,
+ .len = datalen,
+ .value = (uint8_t *)data,
+ };
+ cdol_data_tlv = &data_tlv;
+ PrintAndLog("CDOL data[%d]: %s", cdol_data_tlv->len, sprint_hex(cdol_data_tlv->value, cdol_data_tlv->len));
+
+ // exec
+ uint8_t buf[APDU_RES_LEN] = {0};
+ size_t len = 0;
+ uint16_t sw = 0;
+ int res = EMVAC(leaveSignalON, termDecision, (uint8_t *)cdol_data_tlv->value, cdol_data_tlv->len, buf, sizeof(buf), &len, &sw, tlvRoot);
+
+// free(cdol_data_tlv);
+ tlvdb_free(tlvRoot);
+
+ if (sw)
+ PrintAndLog("APDU response status: %04x - %s", sw, GetAPDUCodeDescription(sw >> 8, sw & 0xff));
+
+ if (res)
+ return res;
+
+ if (decodeTLV)
+ TLVPrintFromBuffer(buf, len);
+
+ return 0;
projects / proxmark3-svn / blobdiff