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Emv scan (#691)

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* 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
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68
client/emv/emvcore.c
View file

@ -9,6 +9,7 @@
//-----------------------------------------------------------------------------
#include "emvcore.h"
#include "emvjson.h"
// Got from here. Thanks)
// https://eftlab.co.uk/index.php/site-map/knowledge-base/211-emv-aid-rid-pix
@ -18,6 +19,13 @@ static const char *PSElist [] = {
};
//static const size_t PSElistLen = sizeof(PSElist)/sizeof(char*);
char *TransactionTypeStr[] = {
"MSD",
"VSDC",
"qVCDCMCHIP",
"CDA"
};
typedef struct {
enum CardPSVendor vendor;
const char* aid;
@ -849,3 +857,63 @@ int trCDA(struct tlvdb *tlv, struct tlvdb *ac_tlv, struct tlv *pdol_data_tlv, st
emv_pk_free(icc_pk);
return 0;
}
int RecoveryCertificates(struct tlvdb *tlvRoot, json_t *root) {
struct emv_pk *pk = get_ca_pk(tlvRoot);
if (!pk) {
PrintAndLog("ERROR: Key not found. Exit.");
return 1;
}
struct emv_pk *issuer_pk = emv_pki_recover_issuer_cert(pk, tlvRoot);
if (!issuer_pk) {
emv_pk_free(pk);
PrintAndLog("WARNING: Issuer certificate not found. Exit.");
return 2;
}
PrintAndLog("Issuer PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx",
issuer_pk->rid[0],
issuer_pk->rid[1],
issuer_pk->rid[2],
issuer_pk->rid[3],
issuer_pk->rid[4],
issuer_pk->index,
issuer_pk->serial[0],
issuer_pk->serial[1],
issuer_pk->serial[2]
);
JsonSaveBufAsHex(root, "$.ApplicationData.RID", issuer_pk->rid, 5);
char *issuer_pk_c = emv_pk_dump_pk(issuer_pk);
JsonSaveStr(root, "$.ApplicationData.IssuerPublicKeyDec", issuer_pk_c);
JsonSaveBufAsHex(root, "$.ApplicationData.IssuerPublicKeyModulus", issuer_pk->modulus, issuer_pk->mlen);
free(issuer_pk_c);
struct emv_pk *icc_pk = emv_pki_recover_icc_cert(issuer_pk, tlvRoot, NULL);
if (!icc_pk) {
emv_pk_free(pk);
emv_pk_free(issuer_pk);
PrintAndLog("WARNING: ICC certificate not found. Exit.");
return 2;
}
printf("ICC PK recovered. RID %02hhx:%02hhx:%02hhx:%02hhx:%02hhx IDX %02hhx CSN %02hhx:%02hhx:%02hhx\n",
icc_pk->rid[0],
icc_pk->rid[1],
icc_pk->rid[2],
icc_pk->rid[3],
icc_pk->rid[4],
icc_pk->index,
icc_pk->serial[0],
icc_pk->serial[1],
icc_pk->serial[2]
);
char *icc_pk_c = emv_pk_dump_pk(icc_pk);
JsonSaveStr(root, "$.ApplicationData.ICCPublicKeyDec", icc_pk_c);
JsonSaveBufAsHex(root, "$.ApplicationData.ICCPublicKeyModulus", icc_pk->modulus, icc_pk->mlen);
free(issuer_pk_c);
return 0;
}