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proxmark3/client/src/cmdhfvas.c
iceman1001 5faf625032 adapt name to match code style
2023-07-27 18:02:53 +02:00

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//-----------------------------------------------------------------------------
// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// See LICENSE.txt for the text of the license.
//-----------------------------------------------------------------------------
// An implementation of the Value Added Service protocol
//-----------------------------------------------------------------------------
#include "cmdhfvas.h"
#include "cliparser.h"
#include "cmdparser.h"
#include "comms.h"
#include "ansi.h"
#include "cmdhf14a.h"
#include "emv/tlv.h"
#include "iso7816/apduinfo.h"
#include "ui.h"
#include "util.h"
#include "util_posix.h"
#include "iso7816/iso7816core.h"
#include "stddef.h"
#include "stdbool.h"
#include "mifare.h"
#include <stdlib.h>
#include <string.h>
#include "crypto/libpcrypto.h"
#include "fileutils.h"
#include "mbedtls/ecp.h"
#include "mbedtls/bignum.h"
#include "mbedtls/ecdh.h"
#include "mbedtls/ecc_point_compression.h"
#include "mbedtls/gcm.h"
static const iso14a_polling_frame_t WUPA_FRAME = {
.frame = { 0x52 },
.frame_length = 1,
.last_byte_bits = 7,
.extra_delay = 0,
};
static const iso14a_polling_frame_t ECP_VAS_ONLY_FRAME = {
.frame = {0x6a, 0x01, 0x00, 0x00, 0x02, 0xe4, 0xd2},
.frame_length = 7,
.last_byte_bits = 8,
.extra_delay = 0,
};
uint8_t aid[] = { 0x4f, 0x53, 0x45, 0x2e, 0x56, 0x41, 0x53, 0x2e, 0x30, 0x31 };
uint8_t getVasUrlOnlyP2 = 0x00;
uint8_t getVasFullReqP2 = 0x01;
static int ParseSelectVASResponse(uint8_t *response, size_t resLen, bool verbose) {
struct tlvdb *tlvRoot = tlvdb_parse_multi(response, resLen);
struct tlvdb *versionTlv = tlvdb_find_full(tlvRoot, 0x9F21);
if (versionTlv == NULL) {
tlvdb_free(tlvRoot);
return PM3_ECARDEXCHANGE;
}
const struct tlv *version = tlvdb_get_tlv(versionTlv);
if (version->len != 2) {
tlvdb_free(tlvRoot);
return PM3_ECARDEXCHANGE;
}
if (verbose) {
PrintAndLogEx(INFO, "Mobile VAS application version: %d.%d", version->value[0], version->value[1]);
}
if (version->value[0] != 0x01 || version->value[1] != 0x00) {
tlvdb_free(tlvRoot);
return PM3_ECARDEXCHANGE;
}
struct tlvdb *capabilitiesTlv = tlvdb_find_full(tlvRoot, 0x9F23);
if (capabilitiesTlv == NULL) {
tlvdb_free(tlvRoot);
return PM3_ECARDEXCHANGE;
}
const struct tlv *capabilities = tlvdb_get_tlv(capabilitiesTlv);
if (capabilities->len != 4
|| capabilities->value[0] != 0x00
|| capabilities->value[1] != 0x00
|| capabilities->value[2] != 0x00
|| (capabilities->value[3] & 8) == 0) {
tlvdb_free(tlvRoot);
return PM3_ECARDEXCHANGE;
}
tlvdb_free(tlvRoot);
return PM3_SUCCESS;
}
static int CreateGetVASDataCommand(uint8_t *pidHash, const char *url, size_t urlLen, uint8_t *out, int *outLen) {
if (pidHash == NULL && url == NULL) {
PrintAndLogEx(FAILED, "Must provide a Pass Type ID or a URL");
return PM3_EINVARG;
}
if (url != NULL && urlLen > 256) {
PrintAndLogEx(FAILED, "URL must be less than 256 characters");
return PM3_EINVARG;
}
uint8_t p2 = pidHash == NULL ? getVasUrlOnlyP2 : getVasFullReqP2;
size_t reqTlvLen = 19 + (pidHash != NULL ? 35 : 0) + (url != NULL ? 3 + urlLen : 0);
uint8_t *reqTlv = calloc(reqTlvLen, sizeof(uint8_t));
uint8_t version[] = {0x9F, 0x22, 0x02, 0x01, 0x00};
memcpy(reqTlv, version, sizeof(version));
uint8_t unknown[] = {0x9F, 0x28, 0x04, 0x00, 0x00, 0x00, 0x00};
memcpy(reqTlv + sizeof(version), unknown, sizeof(unknown));
uint8_t terminalCapabilities[] = {0x9F, 0x26, 0x04, 0x00, 0x00, 0x00, 0x02};
memcpy(reqTlv + sizeof(version) + sizeof(unknown), terminalCapabilities, sizeof(terminalCapabilities));
if (pidHash != NULL) {
size_t offset = sizeof(version) + sizeof(unknown) + sizeof(terminalCapabilities);
reqTlv[offset] = 0x9F;
reqTlv[offset + 1] = 0x25;
reqTlv[offset + 2] = 32;
memcpy(reqTlv + offset + 3, pidHash, 32);
}
if (url != NULL) {
size_t offset = sizeof(version) + sizeof(unknown) + sizeof(terminalCapabilities) + (pidHash != NULL ? 35 : 0);
reqTlv[offset] = 0x9F;
reqTlv[offset + 1] = 0x29;
reqTlv[offset + 2] = urlLen;
memcpy(reqTlv + offset + 3, url, urlLen);
}
out[0] = 0x80;
out[1] = 0xCA;
out[2] = 0x01;
out[3] = p2;
out[4] = reqTlvLen;
memcpy(out + 5, reqTlv, reqTlvLen);
out[5 + reqTlvLen] = 0x00;
*outLen = 6 + reqTlvLen;
free(reqTlv);
return PM3_SUCCESS;
}
static int ParseGetVASDataResponse(uint8_t *res, size_t resLen, uint8_t *cryptogram, size_t *cryptogramLen) {
struct tlvdb *tlvRoot = tlvdb_parse_multi(res, resLen);
struct tlvdb *cryptogramTlvdb = tlvdb_find_full(tlvRoot, 0x9F27);
if (cryptogramTlvdb == NULL) {
tlvdb_free(tlvRoot);
return PM3_ECARDEXCHANGE;
}
const struct tlv *cryptogramTlv = tlvdb_get_tlv(cryptogramTlvdb);
memcpy(cryptogram, cryptogramTlv->value, cryptogramTlv->len);
*cryptogramLen = cryptogramTlv->len;
tlvdb_free(tlvRoot);
return PM3_SUCCESS;
}
static int LoadReaderPrivateKey(uint8_t *buf, size_t bufLen, mbedtls_ecp_keypair *privKey) {
struct tlvdb *derRoot = tlvdb_parse_multi(buf, bufLen);
struct tlvdb *privkeyTlvdb = tlvdb_find_full(derRoot, 0x04);
if (privkeyTlvdb == NULL) {
tlvdb_free(derRoot);
return PM3_EINVARG;
}
const struct tlv *privkeyTlv = tlvdb_get_tlv(privkeyTlvdb);
if (mbedtls_ecp_read_key(MBEDTLS_ECP_DP_SECP256R1, privKey, privkeyTlv->value, privkeyTlv->len)) {
tlvdb_free(derRoot);
PrintAndLogEx(FAILED, "Unable to parse private key file. Should be DER encoded ASN1");
return PM3_EINVARG;
}
struct tlvdb *pubkeyCoordsTlvdb = tlvdb_find_full(derRoot, 0x03);
if (pubkeyCoordsTlvdb == NULL) {
tlvdb_free(derRoot);
PrintAndLogEx(FAILED, "Private key file should include public key component");
return PM3_EINVARG;
}
const struct tlv *pubkeyCoordsTlv = tlvdb_get_tlv(pubkeyCoordsTlvdb);
if (pubkeyCoordsTlv->len != 66 || pubkeyCoordsTlv->value[0] != 0x00 || pubkeyCoordsTlv->value[1] != 0x04) {
tlvdb_free(derRoot);
PrintAndLogEx(FAILED, "Invalid public key data");
return PM3_EINVARG;
}
if (mbedtls_ecp_point_read_binary(&privKey->grp, &privKey->Q, pubkeyCoordsTlv->value + 1, 65)) {
PrintAndLogEx(FAILED, "Failed to read in public key coordinates");
tlvdb_free(derRoot);
return PM3_EINVARG;
}
if (mbedtls_ecp_check_pubkey(&privKey->grp, &privKey->Q)) {
PrintAndLogEx(FAILED, "VAS protocol requires an elliptic key on the P-256 curve");
tlvdb_free(derRoot);
return PM3_EINVARG;
}
tlvdb_free(derRoot);
return PM3_SUCCESS;
}
static int GetPrivateKeyHint(mbedtls_ecp_keypair *privKey, uint8_t *keyHint) {
uint8_t xcoord[32] = {0};
if (mbedtls_mpi_write_binary(&privKey->Q.X, xcoord, sizeof(xcoord))) {
return PM3_EINVARG;
}
uint8_t hash[32] = {0};
sha256hash(xcoord, 32, hash);
memcpy(keyHint, hash, 4);
return PM3_SUCCESS;
}
static int LoadMobileEphemeralKey(uint8_t *xcoordBuf, mbedtls_ecp_keypair *pubKey) {
uint8_t compressedEcKey[33] = {0};
compressedEcKey[0] = 0x02;
memcpy(compressedEcKey + 1, xcoordBuf, 32);
uint8_t decompressedEcKey[65] = {0};
size_t decompressedEcKeyLen = 0;
if (mbedtls_ecp_decompress(&pubKey->grp, compressedEcKey, sizeof(compressedEcKey), decompressedEcKey, &decompressedEcKeyLen, sizeof(decompressedEcKey))) {
return PM3_EINVARG;
}
if (mbedtls_ecp_point_read_binary(&pubKey->grp, &pubKey->Q, decompressedEcKey, decompressedEcKeyLen)) {
return PM3_EINVARG;
}
return PM3_SUCCESS;
}
static int internalVasDecrypt(uint8_t *cipherText, size_t cipherTextLen, uint8_t *sharedSecret,
uint8_t *ansiSharedInfo, size_t ansiSharedInfoLen,
uint8_t *gcmAad, size_t gcmAadLen, uint8_t *out, size_t *outLen) {
uint8_t key[32] = {0};
if (ansi_x963_sha256(sharedSecret, 32, ansiSharedInfo, ansiSharedInfoLen, sizeof(key), key)) {
PrintAndLogEx(FAILED, "ANSI X9.63 key derivation failed");
return PM3_EINVARG;
}
uint8_t iv[16] = {0};
mbedtls_gcm_context gcmCtx;
mbedtls_gcm_init(&gcmCtx);
if (mbedtls_gcm_setkey(&gcmCtx, MBEDTLS_CIPHER_ID_AES, key, sizeof(key) * 8)) {
PrintAndLogEx(FAILED, "Unable to use key in GCM context");
return PM3_EINVARG;
}
if (mbedtls_gcm_auth_decrypt(&gcmCtx, cipherTextLen - 16, iv, sizeof(iv), gcmAad, gcmAadLen, cipherText + cipherTextLen - 16, 16, cipherText, out)) {
PrintAndLogEx(FAILED, "Failed to perform GCM decryption");
return PM3_EINVARG;
}
mbedtls_gcm_free(&gcmCtx);
*outLen = cipherTextLen - 16;
return PM3_SUCCESS;
}
static int DecryptVASCryptogram(uint8_t *pidHash, uint8_t *cryptogram, size_t cryptogramLen, mbedtls_ecp_keypair *privKey, uint8_t *out, size_t *outLen, uint32_t *timestamp) {
uint8_t keyHint[4] = {0};
if (GetPrivateKeyHint(privKey, keyHint) != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "Unable to generate key hint");
return PM3_EINVARG;
}
if (memcmp(keyHint, cryptogram, 4) != 0) {
PrintAndLogEx(FAILED, "Private key does not match cryptogram");
return PM3_EINVARG;
}
mbedtls_ecp_keypair mobilePubKey;
mbedtls_ecp_keypair_init(&mobilePubKey);
mobilePubKey.grp = privKey->grp;
if (LoadMobileEphemeralKey(cryptogram + 4, &mobilePubKey) != PM3_SUCCESS) {
mbedtls_ecp_keypair_free(&mobilePubKey);
PrintAndLogEx(FAILED, "Unable to parse mobile ephemeral key from cryptogram");
return PM3_EINVARG;
}
mbedtls_mpi sharedSecret;
mbedtls_mpi_init(&sharedSecret);
if (mbedtls_ecdh_compute_shared(&privKey->grp, &sharedSecret, &mobilePubKey.Q, &privKey->d, NULL, NULL)) {
mbedtls_mpi_free(&sharedSecret);
mbedtls_ecp_keypair_free(&mobilePubKey);
PrintAndLogEx(FAILED, "Failed to generate ECDH shared secret");
return PM3_EINVARG;
}
mbedtls_ecp_keypair_free(&mobilePubKey);
uint8_t sharedSecretBytes[32] = {0};
if (mbedtls_mpi_write_binary(&sharedSecret, sharedSecretBytes, sizeof(sharedSecretBytes))) {
mbedtls_mpi_free(&sharedSecret);
PrintAndLogEx(FAILED, "Failed to generate ECDH shared secret");
return PM3_EINVARG;
}
mbedtls_mpi_free(&sharedSecret);
uint8_t string1[27] = "ApplePay encrypted VAS data";
uint8_t string2[13] = "id-aes256-GCM";
uint8_t method1SharedInfo[73] = {0};
method1SharedInfo[0] = 13;
memcpy(method1SharedInfo + 1, string2, sizeof(string2));
memcpy(method1SharedInfo + 1 + sizeof(string2), string1, sizeof(string1));
memcpy(method1SharedInfo + 1 + sizeof(string2) + sizeof(string1), pidHash, 32);
uint8_t decryptedData[68] = {0};
size_t decryptedDataLen = 0;
if (internalVasDecrypt(cryptogram + 4 + 32, cryptogramLen - 4 - 32, sharedSecretBytes, method1SharedInfo, sizeof(method1SharedInfo), NULL, 0, decryptedData, &decryptedDataLen)) {
if (internalVasDecrypt(cryptogram + 4 + 32, cryptogramLen - 4 - 32, sharedSecretBytes, string1, sizeof(string1), pidHash, 32, decryptedData, &decryptedDataLen)) {
return PM3_EINVARG;
}
}
memcpy(out, decryptedData + 4, decryptedDataLen - 4);
*outLen = decryptedDataLen - 4;
*timestamp = 0;
for (int i = 0; i < 4; ++i) {
*timestamp = (*timestamp << 8) | decryptedData[i];
}
return PM3_SUCCESS;
}
static int VASReader(uint8_t *pidHash, const char *url, size_t urlLen, uint8_t *cryptogram, size_t *cryptogramLen, bool verbose) {
clearCommandBuffer();
iso14a_polling_parameters_t polling_parameters = {
.frames = { WUPA_FRAME, ECP_VAS_ONLY_FRAME },
.frame_count = 2,
.extra_timeout = 250
};
if (SelectCard14443A_4_WithParameters(false, false, NULL, &polling_parameters) != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "No card in field");
return PM3_ECARDEXCHANGE;
}
uint16_t status = 0;
size_t resLen = 0;
uint8_t selectResponse[APDU_RES_LEN] = {0};
Iso7816Select(CC_CONTACTLESS, false, true, aid, sizeof(aid), selectResponse, APDU_RES_LEN, &resLen, &status);
if (status != 0x9000) {
PrintAndLogEx(FAILED, "Card doesn't support VAS");
return PM3_ECARDEXCHANGE;
}
if (ParseSelectVASResponse(selectResponse, resLen, verbose) != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "Card doesn't support VAS");
return PM3_ECARDEXCHANGE;
}
uint8_t getVasApdu[PM3_CMD_DATA_SIZE];
int getVasApduLen = 0;
int s = CreateGetVASDataCommand(pidHash, url, urlLen, getVasApdu, &getVasApduLen);
if (s != PM3_SUCCESS) {
return s;
}
uint8_t apduRes[APDU_RES_LEN] = {0};
int apduResLen = 0;
s = ExchangeAPDU14a(getVasApdu, getVasApduLen, false, false, apduRes, APDU_RES_LEN, &apduResLen);
if (s != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "Failed to send APDU");
return s;
}
if (apduResLen == 2 && apduRes[0] == 0x62 && apduRes[1] == 0x87) {
PrintAndLogEx(WARNING, "Device returned error on GET VAS DATA. Either doesn't have pass with matching id, or requires user authentication.");
return PM3_ECARDEXCHANGE;
}
if (apduResLen == 0 || apduRes[0] != 0x70) {
PrintAndLogEx(FAILED, "Invalid response from peer");
}
return ParseGetVASDataResponse(apduRes, apduResLen, cryptogram, cryptogramLen);
}
static int CmdVASReader(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf vas reader",
"Read and decrypt Value Added Services (VAS) message",
"hf vas reader --url https://example.com -> URL Only mode\n"
"hf vas reader --pid pass.com.passkit.pksamples.nfcdemo -f vas_privkey.der -@\n"
);
void *argtable[] = {
arg_param_begin,
arg_str0(NULL, "pid", "<str>", "PID, pass type id"),
arg_str0("f", "file", "<fn>", "path to terminal private key file"),
arg_str0(NULL, "url", "<str>", "a URL to provide to the mobile device"),
arg_lit0("@", NULL, "continuous mode"),
arg_lit0("v", "verbose", "log additional information"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int pidlen = 0;
char pid[512] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)pid, 512, &pidlen);
int keyfnlen = 0;
char keyfn[FILE_PATH_SIZE] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 2), (uint8_t *)keyfn, FILE_PATH_SIZE, &keyfnlen);
if (keyfnlen == 0 && pidlen > 0) {
PrintAndLogEx(FAILED, "Must provide path to terminal private key if a pass type id is provided");
CLIParserFree(ctx);
return PM3_EINVARG;
}
int urllen = 0;
char url[512] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 3), (uint8_t *)url, 512, &urllen);
bool continuous = arg_get_lit(ctx, 4);
bool verbose = arg_get_lit(ctx, 5);
CLIParserFree(ctx);
// santity checks
uint8_t *key_data = NULL;
size_t key_datalen = 0;
if (loadFile_safe(keyfn, "", (void **)&key_data, &key_datalen) != PM3_SUCCESS) {
return PM3_EFILE;
}
mbedtls_ecp_keypair privKey;
mbedtls_ecp_keypair_init(&privKey);
if (LoadReaderPrivateKey(key_data, key_datalen, &privKey) != PM3_SUCCESS) {
free(key_data);
mbedtls_ecp_keypair_free(&privKey);
return PM3_ESOFT;
}
free(key_data);
PrintAndLogEx(INFO, "Requesting pass type id... " _GREEN_("%s"), sprint_ascii((uint8_t *) pid, pidlen));
if (continuous) {
PrintAndLogEx(INFO, "Press " _GREEN_("Enter") " to exit");
}
uint8_t pidhash[32] = {0};
sha256hash((uint8_t *) pid, pidlen, pidhash);
size_t clen = 0;
size_t mlen = 0;
uint8_t cryptogram[120] = {0};
uint8_t msg[64] = {0};
uint32_t timestamp = 0;
int res = PM3_SUCCESS;
do {
if (continuous && kbd_enter_pressed()) {
break;
}
res = VASReader((pidlen > 0) ? pidhash : NULL, url, urllen, cryptogram, &clen, verbose);
if (res == PM3_SUCCESS) {
res = DecryptVASCryptogram(pidhash, cryptogram, clen, &privKey, msg, &mlen, &timestamp);
if (res == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "Timestamp... " _YELLOW_("%d") " (secs since Jan 1, 2001)", timestamp);
PrintAndLogEx(SUCCESS, "Message..... " _YELLOW_("%s"), sprint_ascii(msg, mlen));
// extra sleep after successfull read
if (continuous) {
msleep(3000);
}
}
}
msleep(300);
} while (continuous);
mbedtls_ecp_keypair_free(&privKey);
return res;
}
static int CmdVASDecrypt(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hf vas decrypt",
"Decrypt a previously captured cryptogram",
"hf vas decrypt --pid pass.com.passkit.pksamples.nfcdemo -f vas_privkey.der -d c0b77375eae416b79449347f9fe838c05cdb57dc7470b97b93b806cb348771d9bfbe29d58538c7c7d7c3d015fa205b68bfccd726058a62f7f44085ac98dbf877120fd9059f1507b956e0a6d56d0a\n"
);
void *argtable[] = {
arg_param_begin,
arg_str0(NULL, "pid", "<str>", "PID, pass type id"),
arg_str0("f", "file", "<fn>", "path to terminal private key file"),
arg_str0("d", "data", "<hex>", "cryptogram to decrypt"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int pidlen = 0;
char pid[512] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)pid, 512, &pidlen);
int keyfnlen = 0;
char keyfn[FILE_PATH_SIZE] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 2), (uint8_t *)keyfn, FILE_PATH_SIZE, &keyfnlen);
if (keyfnlen == 0 && pidlen > 0) {
PrintAndLogEx(FAILED, "Must provide path to terminal private key if a pass type id is provided");
CLIParserFree(ctx);
return PM3_EINVARG;
}
int clen = 0;
uint8_t cryptogram[120] = {0};
CLIGetHexWithReturn(ctx, 3, cryptogram, &clen);
CLIParserFree(ctx);
// santity checks
uint8_t *key_data = NULL;
size_t key_datalen = 0;
if (loadFile_safe(keyfn, "", (void **)&key_data, &key_datalen) != PM3_SUCCESS) {
return PM3_EFILE;
}
mbedtls_ecp_keypair privKey;
mbedtls_ecp_keypair_init(&privKey);
if (LoadReaderPrivateKey(key_data, key_datalen, &privKey) != PM3_SUCCESS) {
free(key_data);
mbedtls_ecp_keypair_free(&privKey);
return PM3_EFILE;
}
free(key_data);
uint8_t pidhash[32] = {0};
sha256hash((uint8_t *) pid, pidlen, pidhash);
size_t mlen = 0;
uint8_t msg[64] = {0};
uint32_t timestamp = 0;
int res = DecryptVASCryptogram(pidhash, cryptogram, clen, &privKey, msg, &mlen, &timestamp);
if (res == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "Timestamp... " _YELLOW_("%d") " (secs since Jan 1, 2001)", timestamp);
PrintAndLogEx(SUCCESS, "Message..... " _YELLOW_("%s"), sprint_ascii(msg, mlen));
}
mbedtls_ecp_keypair_free(&privKey);
return res;
}
static int CmdHelp(const char *Cmd);
static command_t CommandTable[] = {
{"--------", CmdHelp, AlwaysAvailable, "----------- " _CYAN_("Value Added Service") " -----------"},
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"--------", CmdHelp, AlwaysAvailable, "----------------- " _CYAN_("General") " -----------------"},
{"reader", CmdVASReader, IfPm3Iso14443a, "Read and decrypt VAS message"},
{"decrypt", CmdVASDecrypt, AlwaysAvailable, "Decrypt a previously captured VAS cryptogram"},
{NULL, NULL, NULL, NULL}
};
int CmdHFVAS(const char *Cmd) {
clearCommandBuffer();
return CmdsParse(CommandTable, Cmd);
};
static int CmdHelp(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
CmdsHelp(CommandTable);
return PM3_SUCCESS;
};
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