X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/20f9a2a1d54952ed15066c93490f0e8fb0d43b67..fe53c0311c94943b162fcd12dc0974fb1b672ca0:/armsrc/mifareutil.c
diff --git a/armsrc/mifareutil.c b/armsrc/mifareutil.c
index ede1cbc9..b847043b 100644
--- a/armsrc/mifareutil.c
+++ b/armsrc/mifareutil.c
@@ -1,12 +1,12 @@
//-----------------------------------------------------------------------------
-// Merlok, May 2011
-// Many authors, that makes it possible
+// Merlok, May 2011, 2012
+// Many authors, whom made it possible
//
// 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
// the license.
//-----------------------------------------------------------------------------
-// code for work with mifare cards.
+// Work with mifare cards.
//-----------------------------------------------------------------------------
#include "proxmark3.h"
@@ -19,13 +19,98 @@
#include "crapto1.h"
#include "mifareutil.h"
+int MF_DBGLEVEL = MF_DBG_ALL;
+
+// memory management
uint8_t* mifare_get_bigbufptr(void) {
- return (((uint8_t *)BigBuf) + 3560); // was 3560 - tied to other size changes
+ return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET); // was 3560 - tied to other size changes
+}
+uint8_t* eml_get_bigbufptr_sendbuf(void) {
+ return (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
+}
+uint8_t* eml_get_bigbufptr_recbuf(void) {
+ return (((uint8_t *)BigBuf) + MIFARE_BUFF_OFFSET);
+}
+uint8_t* eml_get_bigbufptr_cardmem(void) {
+ return (((uint8_t *)BigBuf) + CARD_MEMORY);
+}
+
+// crypto1 helpers
+void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len){
+ uint8_t bt = 0;
+ int i;
+
+ if (len != 1) {
+ for (i = 0; i < len; i++)
+ data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
+ } else {
+ bt = 0;
+ for (i = 0; i < 4; i++)
+ bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data[0], i)) << i;
+
+ data[0] = bt;
+ }
+ return;
+}
+
+void mf_crypto1_encrypt(struct Crypto1State *pcs, uint8_t *data, int len, uint32_t *par) {
+ uint8_t bt = 0;
+ int i;
+ uint32_t mltpl = 1 << (len - 1); // for len=18 it=0x20000
+ *par = 0;
+ for (i = 0; i < len; i++) {
+ bt = data[i];
+ data[i] = crypto1_byte(pcs, 0x00, 0) ^ data[i];
+ *par = (*par >> 1) | ( ((filter(pcs->odd) ^ oddparity(bt)) & 0x01) * mltpl );
+ }
+ return;
}
-int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer)
+uint8_t mf_crypto1_encrypt4bit(struct Crypto1State *pcs, uint8_t data) {
+ uint8_t bt = 0;
+ int i;
+
+ for (i = 0; i < 4; i++)
+ bt |= (crypto1_bit(pcs, 0, 0) ^ BIT(data, i)) << i;
+
+ return bt;
+}
+
+// send commands
+int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t *timing)
{
- uint8_t dcmd[4], ecmd[4];
+ return mifare_sendcmd_shortex(pcs, crypted, cmd, data, answer, NULL, timing);
+}
+
+int mifare_sendcmd_short_special(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t* data, uint8_t* answer, uint8_t *timing)
+{
+ uint8_t dcmd[8];//, ecmd[4];
+ //uint32_t par=0;
+
+ dcmd[0] = cmd;
+ dcmd[1] = data[0];
+ dcmd[2] = data[1];
+ dcmd[3] = data[2];
+ dcmd[4] = data[3];
+ dcmd[5] = data[4];
+ AppendCrc14443a(dcmd, 6);
+ //Dbprintf("Data command: %02x", dcmd[0]);
+ //Dbprintf("Data R: %02x %02x %02x %02x %02x %02x %02x", dcmd[1],dcmd[2],dcmd[3],dcmd[4],dcmd[5],dcmd[6],dcmd[7]);
+
+ //memcpy(ecmd, dcmd, sizeof(dcmd));
+ ReaderTransmit(dcmd, sizeof(dcmd), NULL);
+ int len = ReaderReceive(answer);
+ if(!len)
+ {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");
+ return 2;
+ }
+ return len;
+}
+
+int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t* answer, uint32_t * parptr, uint32_t *timing)
+{
+ uint8_t dcmd[4], ecmd[4];
uint32_t pos, par, res;
dcmd[0] = cmd;
@@ -42,15 +127,17 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(dcmd[pos])) & 0x01) * 0x08 );
}
- ReaderTransmitPar(ecmd, sizeof(ecmd), par);
+ ReaderTransmitPar(ecmd, sizeof(ecmd), par, timing);
} else {
- ReaderTransmit(dcmd, sizeof(dcmd));
+ ReaderTransmit(dcmd, sizeof(dcmd), timing);
}
- int len = ReaderReceive(answer);
+ int len = ReaderReceivePar(answer, &par);
+
+ if (parptr) *parptr = par;
- if (crypted) {
+ if (crypted == CRYPT_ALL) {
if (len == 1) {
res = 0;
for (pos = 0; pos < 4; pos++)
@@ -69,23 +156,29 @@ int mifare_sendcmd_short(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd,
return len;
}
+// mifare commands
int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested)
+{
+ return mifare_classic_authex(pcs, uid, blockNo, keyType, ui64Key, isNested, NULL, NULL);
+}
+
+int mifare_classic_authex(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t keyType, uint64_t ui64Key, uint64_t isNested, uint32_t * ntptr, uint32_t *timing)
{
// variables
- int len;
+ int len;
uint32_t pos;
uint8_t tmp4[4];
- byte_t par = 0;
- byte_t ar[4];
+ byte_t par = 0;
+ byte_t ar[4];
uint32_t nt, ntpp; // Supplied tag nonce
uint8_t mf_nr_ar[] = { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
- uint8_t* receivedAnswer = mifare_get_bigbufptr();
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
- // Transmit MIFARE_CLASSIC_AUTH
- len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer);
-// Dbprintf("rand nonce len: %x", len);
- if (len != 4) return 1;
+ // Transmit MIFARE_CLASSIC_AUTH
+ len = mifare_sendcmd_short(pcs, isNested, 0x60 + (keyType & 0x01), blockNo, receivedAnswer, timing);
+ if (MF_DBGLEVEL >= 4) Dbprintf("rand nonce len: %x", len);
+ if (len != 4) return 1;
ar[0] = 0x55;
ar[1] = 0x41;
@@ -94,50 +187,65 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo,
// Save the tag nonce (nt)
nt = bytes_to_num(receivedAnswer, 4);
- Dbprintf("uid: %x nt: %x", uid, nt);
// ----------------------------- crypto1 create
- // Init cipher with key
+ if (isNested)
+ crypto1_destroy(pcs);
+
+ // Init cipher with key
crypto1_create(pcs, ui64Key);
- // Load (plain) uid^nt into the cipher
- crypto1_word(pcs, nt ^ uid, 0);
+ if (isNested == AUTH_NESTED) {
+ // decrypt nt with help of new key
+ nt = crypto1_word(pcs, nt ^ uid, 1) ^ nt;
+ } else {
+ // Load (plain) uid^nt into the cipher
+ crypto1_word(pcs, nt ^ uid, 0);
+ }
+
+ // some statistic
+ if (!ntptr && (MF_DBGLEVEL >= 3))
+ Dbprintf("auth uid: %08x nt: %08x", uid, nt);
+
+ // save Nt
+ if (ntptr)
+ *ntptr = nt;
par = 0;
- // Generate (encrypted) nr+parity by loading it into the cipher (Nr)
- for (pos = 0; pos < 4; pos++)
- {
- mf_nr_ar[pos] = crypto1_byte(pcs, ar[pos], 0) ^ ar[pos];
+ // Generate (encrypted) nr+parity by loading it into the cipher (Nr)
+ for (pos = 0; pos < 4; pos++)
+ {
+ mf_nr_ar[pos] = crypto1_byte(pcs, ar[pos], 0) ^ ar[pos];
par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(ar[pos])) & 0x01) * 0x80 );
- }
+ }
- // Skip 32 bits in pseudo random generator
- nt = prng_successor(nt,32);
+ // Skip 32 bits in pseudo random generator
+ nt = prng_successor(nt,32);
// ar+parity
- for (pos = 4; pos < 8; pos++)
- {
+ for (pos = 4; pos < 8; pos++)
+ {
nt = prng_successor(nt,8);
- mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);
+ mf_nr_ar[pos] = crypto1_byte(pcs,0x00,0) ^ (nt & 0xff);
par = (par >> 1)| ( ((filter(pcs->odd) ^ oddparity(nt & 0xff)) & 0x01) * 0x80 );
- }
+ }
- // Transmit reader nonce and reader answer
- ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par);
+ // Transmit reader nonce and reader answer
+ ReaderTransmitPar(mf_nr_ar, sizeof(mf_nr_ar), par, NULL);
- // Receive 4 bit answer
+ // Receive 4 bit answer
len = ReaderReceive(receivedAnswer);
- if (!len)
- {
- Dbprintf("Authentication failed. Card timeout.");
+ if (!len)
+ {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Card timeout.");
return 2;
- }
+ }
- memcpy(tmp4, receivedAnswer, 4);
+ memcpy(tmp4, receivedAnswer, 4);
ntpp = prng_successor(nt, 32) ^ crypto1_word(pcs, 0,0);
if (ntpp != bytes_to_num(tmp4, 4)) {
- Dbprintf("Authentication failed. Error card response.");
+ if (MF_DBGLEVEL >= 1) Dbprintf("Authentication failed. Error card response.");
return 3;
}
@@ -147,49 +255,80 @@ int mifare_classic_auth(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo,
int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
{
// variables
- int len;
+ int len;
uint8_t bt[2];
- uint8_t* receivedAnswer = mifare_get_bigbufptr();
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
- // command MIFARE_CLASSIC_READBLOCK
- len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer);
+ // command MIFARE_CLASSIC_READBLOCK
+ len = mifare_sendcmd_short(pcs, 1, 0x30, blockNo, receivedAnswer, NULL);
if (len == 1) {
- Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
return 1;
}
if (len != 18) {
- Dbprintf("Cmd Error: card timeout. len: %x", len);
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len);
return 2;
}
memcpy(bt, receivedAnswer + 16, 2);
- AppendCrc14443a(receivedAnswer, 16);
+ AppendCrc14443a(receivedAnswer, 16);
if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
- Dbprintf("Cmd CRC response error.");
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error.");
return 3;
}
memcpy(blockData, receivedAnswer, 16);
- return 0;
-}
-
-int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
-{
- // variables
- int len, i;
+ return 0;
+}
+
+int mifare_ultra_readblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
+{
+ // variables
+ int len;
+ uint8_t bt[2];
+
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
+
+ // command MIFARE_CLASSIC_READBLOCK
+ len = mifare_sendcmd_short(NULL, 1, 0x30, blockNo, receivedAnswer,NULL);
+ if (len == 1) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+ return 1;
+ }
+ if (len != 18) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: card timeout. len: %x", len);
+ return 2;
+ }
+
+ memcpy(bt, receivedAnswer + 16, 2);
+ AppendCrc14443a(receivedAnswer, 16);
+ if (bt[0] != receivedAnswer[16] || bt[1] != receivedAnswer[17]) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd CRC response error.");
+ return 3;
+ }
+
+ memcpy(blockData, receivedAnswer, 14);
+ return 0;
+}
+
+
+int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData)
+{
+ // variables
+ int len, i;
uint32_t pos;
- uint32_t par = 0;
- byte_t res;
+ uint32_t par = 0;
+ byte_t res;
uint8_t d_block[18], d_block_enc[18];
- uint8_t* receivedAnswer = mifare_get_bigbufptr();
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
- // command MIFARE_CLASSIC_WRITEBLOCK
- len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer);
+ // command MIFARE_CLASSIC_WRITEBLOCK
+ len = mifare_sendcmd_short(pcs, 1, 0xA0, blockNo, receivedAnswer, NULL);
if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
- Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
return 1;
}
@@ -198,15 +337,15 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
// crypto
par = 0;
- for (pos = 0; pos < 18; pos++)
- {
- d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];
+ for (pos = 0; pos < 18; pos++)
+ {
+ d_block_enc[pos] = crypto1_byte(pcs, 0x00, 0) ^ d_block[pos];
par = (par >> 1) | ( ((filter(pcs->odd) ^ oddparity(d_block[pos])) & 0x01) * 0x20000 );
- }
+ }
- ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par);
+ ReaderTransmitPar(d_block_enc, sizeof(d_block_enc), par, NULL);
- // Receive the response
+ // Receive the response
len = ReaderReceive(receivedAnswer);
res = 0;
@@ -214,26 +353,194 @@ int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t bl
res |= (crypto1_bit(pcs, 0, 0) ^ BIT(receivedAnswer[0], i)) << i;
if ((len != 1) || (res != 0x0A)) {
- Dbprintf("Cmd send data2 Error: %02x", res);
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd send data2 Error: %02x", res);
return 2;
}
- return 0;
+ return 0;
+}
+
+int mifare_ultra_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
+{
+ // variables
+ int len;
+ uint32_t par = 0;
+
+ uint8_t d_block[18];
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
+
+ // command MIFARE_CLASSIC_WRITEBLOCK
+ len = mifare_sendcmd_short(NULL, 1, 0xA0, blockNo, receivedAnswer,NULL);
+
+ if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Addr Error: %02x", receivedAnswer[0]);
+ return 1;
+ }
+
+ memset(d_block,'\0',18);
+ memcpy(d_block, blockData, 16);
+ AppendCrc14443a(d_block, 16);
+
+ ReaderTransmitPar(d_block, sizeof(d_block), par, NULL);
+
+ // Receive the response
+ len = ReaderReceive(receivedAnswer);
+
+ if ((len != 1) || (receivedAnswer[0] != 0x0A)) { // 0x0a - ACK
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Data Error: %02x %d", receivedAnswer[0],len);
+ return 2;
+ }
+
+ return 0;
+}
+
+int mifare_ultra_special_writeblock(uint32_t uid, uint8_t blockNo, uint8_t *blockData)
+{
+ // variables
+ int len;
+ //uint32_t par = 0;
+
+ uint8_t d_block[8];
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
+
+ // command MIFARE_CLASSIC_WRITEBLOCK
+ memset(d_block,'\0',8);
+ d_block[0]= blockNo;
+ memcpy(d_block+1,blockData,4);
+ AppendCrc14443a(d_block, 6);
+
+ //i know the data send here is correct
+ len = mifare_sendcmd_short_special(NULL, 1, 0xA2, d_block, receivedAnswer,NULL);
+
+ if (receivedAnswer[0] != 0x0A) { // 0x0a - ACK
+ if (MF_DBGLEVEL >= 1) Dbprintf("Cmd Send Error: %02x %d", receivedAnswer[0],len);
+ return 1;
+ }
+ return 0;
+}
+
+int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
+{
+ // variables
+ int len;
+
+ // Mifare HALT
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
+
+ len = mifare_sendcmd_short(pcs, pcs == NULL ? 0:1, 0x50, 0x00, receivedAnswer, NULL);
+ if (len != 0) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len);
+ return 1;
+ }
+
+ return 0;
+}
+
+int mifare_ultra_halt(uint32_t uid)
+{
+ // variables
+ int len;
+
+ // Mifare HALT
+ uint8_t* receivedAnswer = mifare_get_bigbufptr();
+
+ len = mifare_sendcmd_short(NULL, 1, 0x50, 0x00, receivedAnswer, NULL);
+ if (len != 0) {
+ if (MF_DBGLEVEL >= 1) Dbprintf("halt error. response len: %x", len);
+ return 1;
+ }
+
+ return 0;
+}
+
+// work with emulator memory
+void emlSetMem(uint8_t *data, int blockNum, int blocksCount) {
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+
+ memcpy(emCARD + blockNum * 16, data, blocksCount * 16);
}
-int mifare_classic_halt(struct Crypto1State *pcs, uint32_t uid)
-{
- // variables
- int len;
+void emlGetMem(uint8_t *data, int blockNum, int blocksCount) {
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
- // Mifare HALT
- uint8_t* receivedAnswer = mifare_get_bigbufptr();
+ memcpy(data, emCARD + blockNum * 16, blocksCount * 16);
+}
+
+void emlGetMemBt(uint8_t *data, int bytePtr, int byteCount) {
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+
+ memcpy(data, emCARD + bytePtr, byteCount);
+}
+
+int emlCheckValBl(int blockNum) {
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+ uint8_t* data = emCARD + blockNum * 16;
- len = mifare_sendcmd_short(pcs, 1, 0x50, 0x00, receivedAnswer);
- if (len != 0) {
- Dbprintf("halt error. response len: %x", len);
+ if ((data[0] != (data[4] ^ 0xff)) || (data[0] != data[8]) ||
+ (data[1] != (data[5] ^ 0xff)) || (data[1] != data[9]) ||
+ (data[2] != (data[6] ^ 0xff)) || (data[2] != data[10]) ||
+ (data[3] != (data[7] ^ 0xff)) || (data[3] != data[11]) ||
+ (data[12] != (data[13] ^ 0xff)) || (data[12] != data[14]) ||
+ (data[12] != (data[15] ^ 0xff))
+ )
+ return 1;
+ return 0;
+}
+
+int emlGetValBl(uint32_t *blReg, uint8_t *blBlock, int blockNum) {
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+ uint8_t* data = emCARD + blockNum * 16;
+
+ if (emlCheckValBl(blockNum)) {
return 1;
}
+
+ memcpy(blReg, data, 4);
+ *blBlock = data[12];
+
+ return 0;
+}
+int emlSetValBl(uint32_t blReg, uint8_t blBlock, int blockNum) {
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+ uint8_t* data = emCARD + blockNum * 16;
+
+ memcpy(data + 0, &blReg, 4);
+ memcpy(data + 8, &blReg, 4);
+ blReg = blReg ^ 0xffffffff;
+ memcpy(data + 4, &blReg, 4);
+
+ data[12] = blBlock;
+ data[13] = blBlock ^ 0xff;
+ data[14] = blBlock;
+ data[15] = blBlock ^ 0xff;
+
return 0;
}
+
+uint64_t emlGetKey(int sectorNum, int keyType) {
+ uint8_t key[6];
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+
+ memcpy(key, emCARD + 3 * 16 + sectorNum * 4 * 16 + keyType * 10, 6);
+ return bytes_to_num(key, 6);
+}
+
+void emlClearMem(void) {
+ int b;
+
+ const uint8_t trailer[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x80, 0x69, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ const uint8_t uid[] = {0xe6, 0x84, 0x87, 0xf3, 0x16, 0x88, 0x04, 0x00, 0x46, 0x8e, 0x45, 0x55, 0x4d, 0x70, 0x41, 0x04};
+ uint8_t* emCARD = eml_get_bigbufptr_cardmem();
+
+ memset(emCARD, 0, CARD_MEMORY_LEN);
+
+ // fill sectors trailer data
+ for(b = 3; b < 256; b<127?(b+=4):(b+=16)) {
+ emlSetMem((uint8_t *)trailer, b , 1);
+ }
+
+ // uid
+ emlSetMem((uint8_t *)uid, 0, 1);
+ return;
+}