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added intauth and genac commands. works.

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merlokk 2018-09-13 18:38:03 +03:00
parent ad23886a6f
commit 11a78e048c
1 changed files with 107 additions and 5 deletions
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112
client/emv/cmdemv.c
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@ -1,5 +1,5 @@
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
// Copyright (C) 2017 Merlok // Copyright (C) 2017, 2018 Merlok
// //
// This code is licensed to you under the terms of the GNU GPL, version 2 or, // This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of // at your option, any later version. See the LICENSE.txt file for the text of
@ -195,7 +195,7 @@ int CmdHFEMVGPO(const char *cmd) {
// calc PDOL // calc PDOL
struct tlv *pdol_data_tlv = NULL; struct tlv *pdol_data_tlv = NULL;
struct tlv data_tlv = { struct tlv data_tlv = {
.tag = 0x83, //was 01 .tag = 0x01,
.len = datalen, .len = datalen,
.value = (uint8_t *)data, .value = (uint8_t *)data,
}; };
@ -315,8 +315,67 @@ int CmdHFEMVReadRecord(const char *cmd) {
} }
int CmdHFEMVAC(const char *cmd) { int CmdHFEMVAC(const char *cmd) {
uint8_t data[APDU_RES_LEN] = {0};
int datalen = 0;
return 0; CLIParserInit("hf 14a 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-> execute GPO with 2-byte CDOLdata and keep field ON after command\n\thf emv genac -t 01020304 -> execute GPO with 4-byte CDOL data, show result in TLV\n");
void* argtable[] = {
arg_param_begin,
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 CDOLdata>", NULL),
arg_param_end
};
CLIExecWithReturn(cmd, argtable, false);
bool leaveSignalON = arg_get_lit(1);
bool APDULogging = arg_get_lit(2);
bool decodeTLV = arg_get_lit(3);
CLIGetStrWithReturn(4, 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;
// 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);
int res = EMVAC(leaveSignalON, EMVAC_TC, (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;
} }
int CmdHFEMVGenerateChallenge(const char *cmd) { int CmdHFEMVGenerateChallenge(const char *cmd) {
@ -360,8 +419,51 @@ int CmdHFEMVGenerateChallenge(const char *cmd) {
} }
int CmdHFEMVInternalAuthenticate(const char *cmd) { int CmdHFEMVInternalAuthenticate(const char *cmd) {
uint8_t data[APDU_RES_LEN] = {0};
int datalen = 0;
return 0; CLIParserInit("hf 14a intauth",
"Generate Internal Authenticate command. Usually needs 4-byte random number. It returns data in TLV format .\nNeeds a EMV applet to be selected and GPO to be executed.",
"Usage:\n\thf emv intauth -k 01020304 -> execute Internal Authenticate with 4-byte DDOLdata and keep field ON after command\n"
"\thf emv intauth -t 01020304 -> execute Internal Authenticate with 4-byte DDOL data, show result in TLV\n");
void* argtable[] = {
arg_param_begin,
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_param_end
};
CLIExecWithReturn(cmd, argtable, false);
bool leaveSignalON = arg_get_lit(1);
bool APDULogging = arg_get_lit(2);
bool decodeTLV = arg_get_lit(3);
CLIGetStrWithReturn(4, data, &datalen);
CLIParserFree();
SetAPDULogging(APDULogging);
// DDOL
PrintAndLog("DDOL data[%d]: %s", datalen, sprint_hex(data, datalen));
// exec
uint8_t buf[APDU_RES_LEN] = {0};
size_t len = 0;
uint16_t sw = 0;
int res = EMVInternalAuthenticate(leaveSignalON, data, datalen, buf, sizeof(buf), &len, &sw, NULL);
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;
} }
int UsageCmdHFEMVExec(void) { int UsageCmdHFEMVExec(void) {
@ -930,7 +1032,7 @@ static command_t CommandTable[] = {
{"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."}, {"genac", CmdHFEMVAC, 0, "Generate ApplicationCryptogram."},
{"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."}, {"challenge", CmdHFEMVGenerateChallenge, 0, "Generate challenge."},
{"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."}, {"intauth", CmdHFEMVInternalAuthenticate, 0, "Internal authentication."},
{"test", CmdHFEMVTest, 0, "Crypto logic test."}, {"test", CmdHFEMVTest, 0, "Crypto logic test."},
{NULL, NULL, 0, NULL} {NULL, NULL, 0, NULL}
}; };