#include "cmdemv.h"
#include "test/cryptotest.h"
#include "cliparser/cliparser.h"
+#include <jansson.h>
+
+#define TLV_ADD(tag, value)( tlvdb_change_or_add_node(tlvRoot, tag, sizeof(value) - 1, (const unsigned char *)value) )
+void ParamLoadDefaults(struct tlvdb *tlvRoot) {
+ //9F02:(Amount, authorized (Numeric)) len:6
+ TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00");
+ //9F1A:(Terminal Country Code) len:2
+ TLV_ADD(0x9F1A, "ru");
+ //5F2A:(Transaction Currency Code) len:2
+ // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999
+ TLV_ADD(0x5F2A, "\x09\x80");
+ //9A:(Transaction Date) len:3
+ TLV_ADD(0x9A, "\x00\x00\x00");
+ //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash
+ TLV_ADD(0x9C, "\x00");
+ // 9F37 Unpredictable Number len:4
+ TLV_ADD(0x9F37, "\x01\x02\x03\x04");
+ // 9F6A Unpredictable Number (MSD for UDOL) len:4
+ TLV_ADD(0x9F6A, "\x01\x02\x03\x04");
+ //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
+ TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
+}
int CmdHFEMVSelect(const char *cmd) {
uint8_t data[APDU_AID_LEN] = {0};
int datalen = 0;
-
CLIParserInit("hf emv select",
"Executes select applet command",
"Usage:\n\thf emv select -s a00000000101 -> select card, select applet\n\thf emv select -st a00000000101 -> select card, select applet, show result in TLV\n");
arg_lit0("kK", "keep", "keep field for next command"),
arg_lit0("aA", "apdu", "show APDU reqests and responses"),
arg_lit0("tT", "tlv", "TLV decode results"),
- arg_str0(NULL, NULL, "<HEX applet AID>", NULL),
+ arg_strx0(NULL, NULL, "<HEX applet AID>", NULL),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, true);
return 0;
}
-#define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) )
-
int CmdHFEMVGPO(const char *cmd) {
uint8_t data[APDU_RES_LEN] = {0};
int datalen = 0;
CLIParserInit("hf emv gpo",
"Executes Get Processing Options command. It returns data in TLV format (0x77 - format2) or plain format (0x80 - format1).\nNeeds a EMV applet to be selected.",
- "Usage:\n\thf emv gpo -k -> execute GPO\n\thf emv gpo -st 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n");
- // here need to add load params from file and gen pdol
+ "Usage:\n\thf emv gpo -k -> execute GPO\n"
+ "\thf emv gpo -t 01020304 -> execute GPO with 4-byte PDOL data, show result in TLV\n");
+ // here need to add load params from file and gen pdol
void* argtable[] = {
arg_param_begin,
arg_lit0("mM", "make", "make PDOLdata from PDOL (tag 9F38) and parameters (NOT WORK!!!)"),
arg_lit0("aA", "apdu", "show APDU reqests and responses"),
arg_lit0("tT", "tlv", "TLV decode results of selected applets"),
- arg_str0(NULL, NULL, "<HEX PDOLdata/PDOL>", NULL),
+ arg_strx0(NULL, NULL, "<HEX PDOLdata/PDOL>", NULL),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, true);
// calc PDOL
struct tlv *pdol_data_tlv = NULL;
struct tlv data_tlv = {
- .tag = 0x01,
+ .tag = 0x83,
.len = datalen,
.value = (uint8_t *)data,
};
// TODO
PrintAndLog("Make PDOL data not implemented!");
- //9F02:(Amount, authorized (Numeric)) len:6
- TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00");
- //9F1A:(Terminal Country Code) len:2
- TLV_ADD(0x9F1A, "ru");
- //5F2A:(Transaction Currency Code) len:2
- // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999
- TLV_ADD(0x5F2A, "\x09\x80");
- //9A:(Transaction Date) len:3
- TLV_ADD(0x9A, "\x00\x00\x00");
- //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash
- TLV_ADD(0x9C, "\x00");
- // 9F37 Unpredictable Number len:4
- TLV_ADD(0x9F37, "\x01\x02\x03\x04");
- // 9F6A Unpredictable Number (MSD for UDOL) len:4
- TLV_ADD(0x9F6A, "\x01\x02\x03\x04");
- //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
- TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
+ ParamLoadDefaults(tlvRoot);
if (paramsLoadFromFile) {
};
arg_lit0("kK", "keep", "keep field ON for next command"),
arg_lit0("aA", "apdu", "show APDU reqests and responses"),
arg_lit0("tT", "tlv", "TLV decode results of selected applets"),
- arg_str1(NULL, NULL, "<SFI 1byte HEX><SFIrec 1byte HEX>", NULL),
+ arg_strx1(NULL, NULL, "<SFI 1byte HEX><SFIrec 1byte HEX>", NULL),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, true);
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_str1(NULL, NULL, "<HEX CDOLdata>", NULL),
+ arg_strx1(NULL, NULL, "<HEX CDOLdata>", NULL),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, false);
int CmdHFEMVGenerateChallenge(const char *cmd) {
CLIParserInit("hf emv challenge",
- "Executes Generate Challenge command. It returns 4 or 8-byte random number from card:\n",
+ "Executes Generate Challenge command. It returns 4 or 8-byte random number from card.\nNeeds a EMV applet to be selected and GPO to be executed.",
"Usage:\n\thf emv challenge -> get challenge\n\thf emv challenge -k -> get challenge, keep fileld ON\n");
void* argtable[] = {
arg_lit0("kK", "keep", "keep field ON for next command"),
arg_lit0("aA", "apdu", "show APDU reqests and responses"),
arg_lit0("tT", "tlv", "TLV decode results of selected applets"),
- arg_str1(NULL, NULL, "<HEX DDOLdata>", NULL),
+ arg_strx1(NULL, NULL, "<HEX DDOLdata>", NULL),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, false);
return 0;
}
-int UsageCmdHFEMVExec(void) {
- PrintAndLog("HELP : Executes EMV contactless transaction:\n");
- PrintAndLog("Usage: hf emv exec [-s][-a][-t][-f][-v][-c][-x][-g]\n");
- PrintAndLog(" Options:");
- PrintAndLog(" -s : select card");
- 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(" -g : VISA. generate AC from GPO\n");
- PrintAndLog("By default : transaction type - MSD.\n");
- PrintAndLog("Samples:");
- PrintAndLog(" hf emv exec -s -a -t -> execute MSD transaction");
- PrintAndLog(" hf emv exec -s -a -t -c -> execute CDA transaction");
- return 0;
+#define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;}
+
+bool HexToBuffer(const char *errormsg, const char *hexvalue, uint8_t * buffer, size_t maxbufferlen, size_t *bufferlen) {
+ int buflen = 0;
+
+ switch(param_gethex_to_eol(hexvalue, 0, buffer, maxbufferlen, &buflen)) {
+ case 1:
+ PrintAndLog("%s Invalid HEX value.", errormsg);
+ return false;
+ case 2:
+ PrintAndLog("%s Hex value too large.", errormsg);
+ return false;
+ case 3:
+ PrintAndLog("%s Hex value must have even number of digits.", errormsg);
+ return false;
+ }
+
+ if (buflen > maxbufferlen) {
+ PrintAndLog("%s HEX length (%d) more than %d", errormsg, *bufferlen, maxbufferlen);
+ return false;
+ }
+
+ *bufferlen = buflen;
+
+ return true;
}
-#define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;}
+bool ParamLoadFromJson(struct tlvdb *tlv) {
+ json_t *root;
+ json_error_t error;
-int CmdHFEMVExec(const char *cmd) {
- bool activateField = false;
- bool showAPDU = false;
- bool decodeTLV = false;
- bool forceSearch = false;
- enum TransactionType TrType = TT_MSD;
- bool GenACGPO = false;
+ if (!tlv) {
+ PrintAndLog("ERROR load params: tlv tree is NULL.");
+ return false;
+ }
+
+ // current path + file name
+ const char *relfname = "emv/defparams.json";
+ char fname[strlen(get_my_executable_directory()) + strlen(relfname) + 1];
+ strcpy(fname, get_my_executable_directory());
+ strcat(fname, relfname);
+
+ root = json_load_file(fname, 0, &error);
+ if (!root) {
+ PrintAndLog("Load params: json error on line %d: %s", error.line, error.text);
+ return false;
+ }
+
+ if (!json_is_array(root)) {
+ PrintAndLog("Load params: Invalid json format. root must be array.");
+ return false;
+ }
+
+ PrintAndLog("Load params: json OK");
+
+ for(int i = 0; i < json_array_size(root); i++) {
+ json_t *data, *jtype, *jlength, *jvalue;
+
+ data = json_array_get(root, i);
+ if(!json_is_object(data))
+ {
+ PrintAndLog("Load params: data [%d] is not an object", i + 1);
+ json_decref(root);
+ return false;
+ }
+
+ jtype = json_object_get(data, "type");
+ if(!json_is_string(jtype))
+ {
+ PrintAndLog("Load params: data [%d] type is not a string", i + 1);
+ json_decref(root);
+ return false;
+ }
+ const char *tlvType = json_string_value(jtype);
+
+ jvalue = json_object_get(data, "value");
+ if(!json_is_string(jvalue))
+ {
+ PrintAndLog("Load params: data [%d] value is not a string", i + 1);
+ json_decref(root);
+ return false;
+ }
+ const char *tlvValue = json_string_value(jvalue);
+
+ jlength = json_object_get(data, "length");
+ if(!json_is_number(jlength))
+ {
+ PrintAndLog("Load params: data [%d] length is not a number", i + 1);
+ json_decref(root);
+ return false;
+ }
+
+ int tlvLength = json_integer_value(jlength);
+ if (tlvLength > 250) {
+ PrintAndLog("Load params: data [%d] length more than 250", i + 1);
+ json_decref(root);
+ return false;
+ }
+
+ PrintAndLog("TLV param: %s[%d]=%s", tlvType, tlvLength, tlvValue);
+ uint8_t buf[251] = {0};
+ size_t buflen = 0;
+
+ // here max length must be 4, but now tlv_tag_t is 2-byte var. so let it be 2 by now... TODO: needs refactoring tlv_tag_t...
+ if (!HexToBuffer("TLV Error type:", tlvType, buf, 2, &buflen)) {
+ json_decref(root);
+ return false;
+ }
+ tlv_tag_t tag = 0;
+ for (int i = 0; i < buflen; i++) {
+ tag = (tag << 8) + buf[i];
+ }
+
+ if (!HexToBuffer("TLV Error value:", tlvValue, buf, sizeof(buf) - 1, &buflen)) {
+ json_decref(root);
+ return false;
+ }
+
+ if (buflen != tlvLength) {
+ PrintAndLog("Load params: data [%d] length of HEX must(%d) be identical to length in TLV param(%d)", i + 1, buflen, tlvLength);
+ json_decref(root);
+ return false;
+ }
+
+ tlvdb_change_or_add_node(tlv, tag, tlvLength, (const unsigned char *)buf);
+ }
+
+ json_decref(root);
+
+ return true;
+}
+int CmdHFEMVExec(const char *cmd) {
uint8_t buf[APDU_RES_LEN] = {0};
size_t len = 0;
uint16_t sw = 0;
struct tlvdb *tlvRoot = NULL;
struct tlv *pdol_data_tlv = NULL;
- if (strlen(cmd) < 1) {
- UsageCmdHFEMVExec();
- return 0;
- }
+ CLIParserInit("hf emv exec",
+ "Executes EMV contactless transaction",
+ "Usage:\n\thf emv exec -sat -> select card, execute MSD transaction, show APDU and TLV\n"
+ "\thf emv exec -satc -> select card, execute CDA transaction, show APDU and TLV\n");
+
+ void* argtable[] = {
+ arg_param_begin,
+ arg_lit0("sS", "select", "activate field and select card."),
+ arg_lit0("aA", "apdu", "show APDU reqests and responses."),
+ arg_lit0("tT", "tlv", "TLV decode results."),
+ arg_lit0("jJ", "jload", "Load transaction parameters from `emv/defparams.json` file."),
+ arg_lit0("fF", "forceaid", "Force search AID. Search AID instead of execute PPSE."),
+ arg_rem("By default:", "Transaction type - MSD"),
+ arg_lit0("vV", "qvsdc", "Transaction type - qVSDC or M/Chip."),
+ arg_lit0("cC", "qvsdccda", "Transaction type - qVSDC or M/Chip plus CDA (SDAD generation)."),
+ arg_lit0("xX", "vsdc", "Transaction type - VSDC. For test only. Not a standart behavior."),
+ arg_lit0("gG", "acgpo", "VISA. generate AC from GPO."),
+ arg_param_end
+ };
+ CLIExecWithReturn(cmd, argtable, true);
- int cmdp = 0;
- while(param_getchar(cmd, cmdp) != 0x00) {
- char c = param_getchar(cmd, cmdp);
- if ((c == '-') && (param_getlength(cmd, cmdp) == 2))
- switch (param_getchar_indx(cmd, 1, cmdp)) {
- case 'h':
- case 'H':
- UsageCmdHFEMVExec();
- return 0;
- case 's':
- case 'S':
- activateField = true;
- break;
- case 'a':
- case 'A':
- showAPDU = true;
- break;
- case 't':
- case 'T':
- decodeTLV = true;
- break;
- case 'f':
- 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;
- case 'g':
- case 'G':
- GenACGPO = true;
- break;
- default:
- PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp));
- return 1;
- }
- cmdp++;
- }
+ bool activateField = arg_get_lit(1);
+ bool showAPDU = arg_get_lit(2);
+ bool decodeTLV = arg_get_lit(3);
+ bool paramLoadJSON = arg_get_lit(4);
+ bool forceSearch = arg_get_lit(5);
+ enum TransactionType TrType = TT_MSD;
+ if (arg_get_lit(6))
+ TrType = TT_QVSDCMCHIP;
+ if (arg_get_lit(7))
+ TrType = TT_CDA;
+ if (arg_get_lit(8))
+ TrType = TT_VSDC;
+
+ bool GenACGPO = arg_get_lit(9);
+ CLIParserFree();
+
+ SetAPDULogging(showAPDU);
// init applets list tree
const char *al = "Applets list";
PrintAndLog("\n* Init transaction parameters.");
- //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
+ ParamLoadDefaults(tlvRoot);
+
+ if (paramLoadJSON) {
+ PrintAndLog("* * Transaction parameters loading from JSON...");
+ ParamLoadFromJson(tlvRoot);
+ }
+
+ //9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
char *qVSDC = "\x26\x00\x00\x00";
if (GenACGPO) {
qVSDC = "\x26\x80\x00\x00";
TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled)
break;
default:
- TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
break;
}
- //9F02:(Amount, authorized (Numeric)) len:6
- TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00");
- //9F1A:(Terminal Country Code) len:2
- TLV_ADD(0x9F1A, "ru");
- //5F2A:(Transaction Currency Code) len:2
- // USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999
- TLV_ADD(0x5F2A, "\x09\x80");
- //9A:(Transaction Date) len:3
- TLV_ADD(0x9A, "\x00\x00\x00");
- //9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash
- TLV_ADD(0x9C, "\x00");
- // 9F37 Unpredictable Number len:4
- TLV_ADD(0x9F37, "\x01\x02\x03\x04");
- // 9F6A Unpredictable Number (MSD for UDOL) len:4
- TLV_ADD(0x9F6A, "\x01\x02\x03\x04");
-
TLVPrintFromTLV(tlvRoot); // TODO delete!!!
PrintAndLog("\n* Calc PDOL.");
return 0;
}
+int UsageCmdHFEMVScan(void) {
+ PrintAndLog("HELP : Scan EMV card and save it contents to a file. \n");
+ PrintAndLog(" It executes EMV contactless transaction and saves result to a file which can be used for emulation.\n");
+ PrintAndLog("Usage: hf emv scan [-a][-t][-v][-c][-x][-g] <file_name>\n");
+ PrintAndLog(" Options:");
+ PrintAndLog(" -a : show APDU reqests and responses\n");
+ PrintAndLog(" -t : TLV decode results\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(" -g : VISA. generate AC from GPO\n");
+ PrintAndLog("By default : transaction type - MSD.\n");
+ PrintAndLog("Samples:");
+ PrintAndLog(" hf emv scan -a -t -> scan MSD transaction mode");
+ PrintAndLog(" hf emv scan -a -t -c -> scan CDA transaction mode");
+ return 0;
+}
+
+int CmdHFEMVScan(const char *cmd) {
+ UsageCmdHFEMVScan();
+
+ return 0;
+}
+
int CmdHFEMVTest(const char *cmd) {
return ExecuteCryptoTests(true);
}
{"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."},
{"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."},
{"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."},
+// {"scan", CmdHFEMVScan, 0, "Scan EMV card and save it contents to json file for emulator."},
{"test", CmdHFEMVTest, 0, "Crypto logic test."},
{NULL, NULL, 0, NULL}
};
projects / proxmark3-svn / blobdiff