* added `hf emv scan` command and options
* add tlv tag save to json
* added tlv tree navigation
* added kernel id and moved some parts of code in ppse
* save gpo result
* added read records
* extract childs from tlv works
* added application data list
* added work with application data section
* flag --extract works
* refactoring: move json functions to emvjson.h/c
* added path.c to jansson
* refactoring: move ParamLoadFromJson
* refactoring: move defparams.json to tag-name-value structure
* refactoring and add key recovering
* added some codes to appdata list
* refactoring: process response format 1 from GPO
* added save mode
* added RID to app data
* add file name handling and small refactoring in argtable string processing
* added finalization logic to `emv scan` and option to remove hash checking in key recovery
This commit is contained in:
Oleg Moiseenko 2018-10-17 21:53:34 +03:00 committed by pwpiwi
commit 95b697f017
20 changed files with 1209 additions and 241 deletions

View file

@ -9,36 +9,14 @@
//-----------------------------------------------------------------------------
#include <ctype.h>
#include "mifare.h"
#include "cmdemv.h"
#include "emvjson.h"
#include "emv_pki.h"
#include "test/cryptotest.h"
#include "cliparser/cliparser.h"
#include <jansson.h>
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 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
@ -60,111 +38,6 @@ void ParamLoadDefaults(struct tlvdb *tlvRoot) {
TLV_ADD(0x9F66, "\x26\x00\x00\x00"); // qVSDC
}
bool ParamLoadFromJson(struct tlvdb *tlv) {
json_t *root;
json_error_t error;
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 CmdHFEMVSelect(const char *cmd) {
uint8_t data[APDU_AID_LEN] = {0};
int datalen = 0;
@ -188,7 +61,7 @@ int CmdHFEMVSelect(const char *cmd) {
bool leaveSignalON = arg_get_lit(2);
bool APDULogging = arg_get_lit(3);
bool decodeTLV = arg_get_lit(4);
CLIGetStrWithReturn(5, data, &datalen);
CLIGetHexWithReturn(5, data, &datalen);
CLIParserFree();
SetAPDULogging(APDULogging);
@ -333,7 +206,7 @@ int CmdHFEMVGPO(const char *cmd) {
bool dataMakeFromPDOL = arg_get_lit(3);
bool APDULogging = arg_get_lit(4);
bool decodeTLV = arg_get_lit(5);
CLIGetStrWithReturn(6, data, &datalen);
CLIGetHexWithReturn(6, data, &datalen);
CLIParserFree();
SetAPDULogging(APDULogging);
@ -422,7 +295,7 @@ int CmdHFEMVReadRecord(const char *cmd) {
bool leaveSignalON = arg_get_lit(1);
bool APDULogging = arg_get_lit(2);
bool decodeTLV = arg_get_lit(3);
CLIGetStrWithReturn(4, data, &datalen);
CLIGetHexWithReturn(4, data, &datalen);
CLIParserFree();
if (datalen != 2) {
@ -500,7 +373,7 @@ int CmdHFEMVAC(const char *cmd) {
bool dataMakeFromCDOL = arg_get_lit(5);
bool APDULogging = arg_get_lit(6);
bool decodeTLV = arg_get_lit(7);
CLIGetStrWithReturn(8, data, &datalen);
CLIGetHexWithReturn(8, data, &datalen);
CLIParserFree();
SetAPDULogging(APDULogging);
@ -629,7 +502,7 @@ int CmdHFEMVInternalAuthenticate(const char *cmd) {
bool dataMakeFromDDOL = arg_get_lit(3);
bool APDULogging = arg_get_lit(4);
bool decodeTLV = arg_get_lit(5);
CLIGetStrWithReturn(6, data, &datalen);
CLIGetHexWithReturn(6, data, &datalen);
CLIParserFree();
SetAPDULogging(APDULogging);
@ -693,6 +566,69 @@ int CmdHFEMVInternalAuthenticate(const char *cmd) {
#define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;}
void InitTransactionParameters(struct tlvdb *tlvRoot, bool paramLoadJSON, enum TransactionType TrType, bool GenACGPO) {
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";
}
switch(TrType) {
case TT_MSD:
TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD
break;
// not standard for contactless. just for test.
case TT_VSDC:
TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC
break;
case TT_QVSDCMCHIP:
TLV_ADD(0x9F66, qVSDC); // qVSDC
break;
case TT_CDA:
TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled)
break;
default:
break;
}
}
void ProcessGPOResponseFormat1(struct tlvdb *tlvRoot, uint8_t *buf, size_t len, bool decodeTLV) {
if (buf[0] == 0x80) {
if (decodeTLV){
PrintAndLog("GPO response format1:");
TLVPrintFromBuffer(buf, len);
}
if (len < 4 || (len - 4) % 4) {
PrintAndLog("ERROR: GPO response format1 parsing error. length=%d", len);
} else {
// AIP
struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2);
tlvdb_add(tlvRoot, f1AIP);
if (decodeTLV){
PrintAndLog("\n* * Decode response format 1 (0x80) AIP and AFL:");
TLVPrintFromTLV(f1AIP);
}
// AFL
struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2);
tlvdb_add(tlvRoot, f1AFL);
if (decodeTLV)
TLVPrintFromTLV(f1AFL);
}
} else {
if (decodeTLV)
TLVPrintFromBuffer(buf, len);
}
}
int CmdHFEMVExec(const char *cmd) {
uint8_t buf[APDU_RES_LEN] = {0};
size_t len = 0;
@ -805,37 +741,7 @@ int CmdHFEMVExec(const char *cmd) {
PrintAndLog("* Selected.");
PrintAndLog("\n* Init transaction parameters.");
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";
}
switch(TrType) {
case TT_MSD:
TLV_ADD(0x9F66, "\x86\x00\x00\x00"); // MSD
break;
// not standard for contactless. just for test.
case TT_VSDC:
TLV_ADD(0x9F66, "\x46\x00\x00\x00"); // VSDC
break;
case TT_QVSDCMCHIP:
TLV_ADD(0x9F66, qVSDC); // qVSDC
break;
case TT_CDA:
TLV_ADD(0x9F66, qVSDC); // qVSDC (VISA CDA not enabled)
break;
default:
break;
}
InitTransactionParameters(tlvRoot, paramLoadJSON, TrType, GenACGPO);
TLVPrintFromTLV(tlvRoot); // TODO delete!!!
PrintAndLog("\n* Calc PDOL.");
@ -865,33 +771,7 @@ int CmdHFEMVExec(const char *cmd) {
}
// process response template format 1 [id:80 2b AIP + x4b AFL] and format 2 [id:77 TLV]
if (buf[0] == 0x80) {
if (decodeTLV){
PrintAndLog("GPO response format1:");
TLVPrintFromBuffer(buf, len);
}
if (len < 4 || (len - 4) % 4) {
PrintAndLog("ERROR: GPO response format1 parsing error. length=%d", len);
} else {
// AIP
struct tlvdb * f1AIP = tlvdb_fixed(0x82, 2, buf + 2);
tlvdb_add(tlvRoot, f1AIP);
if (decodeTLV){
PrintAndLog("\n* * Decode response format 1 (0x80) AIP and AFL:");
TLVPrintFromTLV(f1AIP);
}
// AFL
struct tlvdb * f1AFL = tlvdb_fixed(0x94, len - 4, buf + 2 + 2);
tlvdb_add(tlvRoot, f1AFL);
if (decodeTLV)
TLVPrintFromTLV(f1AFL);
}
} else {
if (decodeTLV)
TLVPrintFromBuffer(buf, len);
}
ProcessGPOResponseFormat1(tlvRoot, buf, len, decodeTLV);
// extract PAN from track2
{
@ -1191,26 +1071,328 @@ int CmdHFEMVExec(const char *cmd) {
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();
uint8_t AID[APDU_AID_LEN] = {0};
size_t AIDlen = 0;
uint8_t buf[APDU_RES_LEN] = {0};
size_t len = 0;
uint16_t sw = 0;
int res;
json_t *root;
json_error_t error;
CLIParserInit("hf emv scan",
"Scan EMV card and save it contents to a file.",
"It executes EMV contactless transaction and saves result to a file which can be used for emulation\n"
"Usage:\n\thf emv scan -at -> scan MSD transaction mode and show APDU and TLV\n"
"\thf emv scan -c -> scan CDA transaction mode\n");
void* argtable[] = {
arg_param_begin,
arg_lit0("aA", "apdu", "show APDU reqests and responses."),
arg_lit0("tT", "tlv", "TLV decode results."),
arg_lit0("eE", "extract", "Extract TLV elements and fill Application Data"),
arg_lit0("jJ", "jload", "Load transaction parameters from `emv/defparams.json` file."),
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_lit0("mM", "merge", "Merge output file with card's data. (warning: the file may be corrupted!)"),
arg_str1(NULL, NULL, "output.json", "JSON output file name"),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, true);
bool showAPDU = arg_get_lit(1);
bool decodeTLV = arg_get_lit(2);
bool extractTLVElements = arg_get_lit(3);
bool paramLoadJSON = arg_get_lit(4);
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);
bool MergeJSON = arg_get_lit(10);
uint8_t relfname[250] ={0};
char *crelfname = (char *)relfname;
int relfnamelen = 0;
CLIGetStrWithReturn(11, relfname, &relfnamelen);
CLIParserFree();
SetAPDULogging(showAPDU);
// current path + file name
if (!strstr(crelfname, ".json"))
strcat(crelfname, ".json");
char fname[strlen(get_my_executable_directory()) + strlen(crelfname) + 1];
strcpy(fname, get_my_executable_directory());
strcat(fname, crelfname);
if (MergeJSON) {
root = json_load_file(fname, 0, &error);
if (!root) {
PrintAndLog("ERROR: json error on line %d: %s", error.line, error.text);
return 1;
}
if (!json_is_object(root)) {
PrintAndLog("ERROR: Invalid json format. root must be an object.");
return 1;
}
} else {
root = json_object();
}
// drop field at start
DropField();
// iso 14443 select
PrintAndLog("--> GET UID, ATS.");
iso14a_card_select_t card;
if (Hf14443_4aGetCardData(&card)) {
return 2;
}
JsonSaveStr(root, "$.File.Created", "proxmark3 `hf emv scan`");
JsonSaveStr(root, "$.Card.Communication", "iso14443-4a");
JsonSaveBufAsHex(root, "$.Card.UID", (uint8_t *)&card.uid, card.uidlen);
JsonSaveHex(root, "$.Card.ATQA", card.atqa[0] + (card.atqa[1] << 2), 2);
JsonSaveHex(root, "$.Card.SAK", card.sak, 0);
JsonSaveBufAsHex(root, "$.Card.ATS", (uint8_t *)card.ats, card.ats_len);
// init applets list tree
const char *al = "Applets list";
struct tlvdb *tlvSelect = tlvdb_fixed(1, strlen(al), (const unsigned char *)al);
// EMV PPSE
PrintAndLog("--> PPSE.");
res = EMVSelectPSE(true, true, 2, buf, sizeof(buf), &len, &sw);
if (!res && sw == 0x9000){
if (decodeTLV)
TLVPrintFromBuffer(buf, len);
JsonSaveBufAsHex(root, "$.PPSE.AID", (uint8_t *)"2PAY.SYS.DDF01", 14);
struct tlvdb *fci = tlvdb_parse_multi(buf, len);
if (extractTLVElements)
JsonSaveTLVTree(root, root, "$.PPSE.FCITemplate", fci);
else
JsonSaveTLVTreeElm(root, "$.PPSE.FCITemplate", fci, true, true, false);
JsonSaveTLVValue(root, "$.Application.KernelID", tlvdb_find_full(fci, 0x9f2a));
tlvdb_free(fci);
}
res = EMVSearchPSE(false, true, decodeTLV, tlvSelect);
// check PPSE and select application id
if (!res) {
TLVPrintAIDlistFromSelectTLV(tlvSelect);
} else {
// EMV SEARCH with AID list
SetAPDULogging(false);
PrintAndLog("--> AID search.");
if (EMVSearch(false, true, decodeTLV, tlvSelect)) {
PrintAndLog("E->Can't found any of EMV AID. Exit...");
tlvdb_free(tlvSelect);
DropField();
return 3;
}
// check search and select application id
TLVPrintAIDlistFromSelectTLV(tlvSelect);
}
// EMV SELECT application
SetAPDULogging(showAPDU);
EMVSelectApplication(tlvSelect, AID, &AIDlen);
tlvdb_free(tlvSelect);
if (!AIDlen) {
PrintAndLog("Can't select AID. EMV AID not found. Exit...");
DropField();
return 4;
}
JsonSaveBufAsHex(root, "$.Application.AID", AID, AIDlen);
// Init TLV tree
const char *alr = "Root terminal TLV tree";
struct tlvdb *tlvRoot = tlvdb_fixed(1, strlen(alr), (const unsigned char *)alr);
// EMV SELECT applet
PrintAndLog("\n-->Selecting AID:%s.", sprint_hex_inrow(AID, AIDlen));
SetAPDULogging(showAPDU);
res = EMVSelect(false, true, AID, AIDlen, buf, sizeof(buf), &len, &sw, tlvRoot);
if (res) {
PrintAndLog("E->Can't select AID (%d). Exit...", res);
tlvdb_free(tlvRoot);
DropField();
return 5;
}
if (decodeTLV)
TLVPrintFromBuffer(buf, len);
// save mode
if (tlvdb_get(tlvRoot, 0x9f38, NULL)) {
JsonSaveStr(root, "$.Application.Mode", TransactionTypeStr[TrType]);
}
struct tlvdb *fci = tlvdb_parse_multi(buf, len);
if (extractTLVElements)
JsonSaveTLVTree(root, root, "$.Application.FCITemplate", fci);
else
JsonSaveTLVTreeElm(root, "$.Application.FCITemplate", fci, true, true, false);
tlvdb_free(fci);
// create transaction parameters
PrintAndLog("-->Init transaction parameters.");
InitTransactionParameters(tlvRoot, paramLoadJSON, TrType, GenACGPO);
PrintAndLog("-->Calc PDOL.");
struct tlv *pdol_data_tlv = dol_process(tlvdb_get(tlvRoot, 0x9f38, NULL), tlvRoot, 0x83);
if (!pdol_data_tlv){
PrintAndLog("E->Can't create PDOL TLV.");
tlvdb_free(tlvRoot);
DropField();
return 6;
}
size_t pdol_data_tlv_data_len;
unsigned char *pdol_data_tlv_data = tlv_encode(pdol_data_tlv, &pdol_data_tlv_data_len);
if (!pdol_data_tlv_data) {
PrintAndLog("E->Can't create PDOL data.");
tlvdb_free(tlvRoot);
DropField();
return 6;
}
PrintAndLog("PDOL data[%d]: %s", pdol_data_tlv_data_len, sprint_hex(pdol_data_tlv_data, pdol_data_tlv_data_len));
PrintAndLog("-->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) {
PrintAndLog("GPO error(%d): %4x. Exit...", res, sw);
tlvdb_free(tlvRoot);
DropField();
return 7;
}
ProcessGPOResponseFormat1(tlvRoot, buf, len, decodeTLV);
struct tlvdb *gpofci = tlvdb_parse_multi(buf, len);
if (extractTLVElements)
JsonSaveTLVTree(root, root, "$.Application.GPO", gpofci);
else
JsonSaveTLVTreeElm(root, "$.Application.GPO", gpofci, true, true, false);
JsonSaveTLVValue(root, "$.ApplicationData.AIP", tlvdb_find_full(gpofci, 0x82));
JsonSaveTLVValue(root, "$.ApplicationData.AFL", tlvdb_find_full(gpofci, 0x94));
tlvdb_free(gpofci);
PrintAndLog("-->Read records from AFL.");
const struct tlv *AFL = tlvdb_get(tlvRoot, 0x94, NULL);
while(AFL && AFL->len) {
if (AFL->len % 4) {
PrintAndLog("E->Wrong AFL length: %d", AFL->len);
break;
}
json_t *sfijson = json_path_get(root, "$.Application.Records");
if (!sfijson) {
json_t *app = json_path_get(root, "$.Application");
json_object_set_new(app, "Records", json_array());
sfijson = json_path_get(root, "$.Application.Records");
}
if (!json_is_array(sfijson)) {
PrintAndLog("E->Internal logic error. `$.Application.Records` is not an array.");
break;
}
for (int i = 0; i < AFL->len / 4; i++) {
uint8_t SFI = AFL->value[i * 4 + 0] >> 3;
uint8_t SFIstart = AFL->value[i * 4 + 1];
uint8_t SFIend = AFL->value[i * 4 + 2];
uint8_t SFIoffline = AFL->value[i * 4 + 3];
PrintAndLog("--->SFI[%02x] start:%02x end:%02x offline:%02x", SFI, SFIstart, SFIend, SFIoffline);
if (SFI == 0 || SFI == 31 || SFIstart == 0 || SFIstart > SFIend) {
PrintAndLog("SFI ERROR! Skipped...");
continue;
}
for(int n = SFIstart; n <= SFIend; n++) {
PrintAndLog("---->SFI[%02x] %d", SFI, n);
res = EMVReadRecord(true, SFI, n, buf, sizeof(buf), &len, &sw, tlvRoot);
if (res) {
PrintAndLog("E->SFI[%02x]. APDU error %4x", SFI, sw);
continue;
}
if (decodeTLV) {
TLVPrintFromBuffer(buf, len);
PrintAndLog("");
}
json_t *jsonelm = json_object();
json_array_append_new(sfijson, jsonelm);
JsonSaveHex(jsonelm, "SFI", SFI, 1);
JsonSaveHex(jsonelm, "RecordNum", n, 1);
JsonSaveHex(jsonelm, "Offline", SFIoffline, 1);
struct tlvdb *rsfi = tlvdb_parse_multi(buf, len);
if (extractTLVElements)
JsonSaveTLVTree(root, jsonelm, "$.Data", rsfi);
else
JsonSaveTLVTreeElm(jsonelm, "$.Data", rsfi, true, true, false);
tlvdb_free(rsfi);
}
}
break;
}
// getting certificates
if (tlvdb_get(tlvRoot, 0x90, NULL)) {
PrintAndLog("-->Recovering certificates.");
PKISetStrictExecution(false);
RecoveryCertificates(tlvRoot, root);
PKISetStrictExecution(true);
}
// free tlv object
tlvdb_free(tlvRoot);
// DropField
DropField();
res = json_dump_file(root, fname, JSON_INDENT(2));
if (res) {
PrintAndLog("ERROR: can't save the file: %s", fname);
return 200;
}
PrintAndLog("File `%s` saved.", fname);
// free json object
json_decref(root);
return 0;
}
@ -1231,7 +1413,7 @@ static command_t CommandTable[] = {
{"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."},
{"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}
};