X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/fb2d24882e31c4a9915a87e28081c3f7d6f3bea4..63146229bd78c70bd544dcf393c75b0b01d7cd31:/armsrc/mifarecmd.c
diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index ef536d96..6bb04caf 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -138,16 +138,18 @@ void MifareUC_Auth2(uint32_t arg0, uint8_t *datain){
LEDsoff();
}
+// Arg0 = BlockNo,
+// Arg1 = UsePwd bool
+// datain = PWD bytes,
void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
{
uint8_t blockNo = arg0;
byte_t dataout[16] = {0x00};
uint8_t uid[10] = {0x00};
- uint8_t key[16] = {0x00};
bool usePwd = (arg1 == 1);
-
- LED_A_ON(); LED_B_OFF(); LED_C_OFF();
-
+
+ LEDsoff();
+ LED_A_ON();
clear_trace();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
@@ -160,18 +162,15 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
// authenticate here.
if ( usePwd ) {
-
+
+ uint8_t key[16] = {0x00};
memcpy(key, datain, 16);
- // Dbprintf("KEY: %02x %02x %02x %02x %02x %02x %02x %02x", key[0],key[1],key[2],key[3],key[4],key[5],key[6],key[7] );
- // Dbprintf("KEY: %02x %02x %02x %02x %02x %02x %02x %02x", key[8],key[9],key[10],key[11],key[12],key[13],key[14],key[15] );
-
- uint8_t a[8] = {1,1,1,1,1,1,1,1 };
- uint8_t b[8] = {0x00};
- uint8_t enc_b[8] = {0x00};
- uint8_t ab[16] = {0x00};
- uint8_t enc_ab[16] = {0x00};
- uint8_t enc_key[8] = {0x00};
+ uint8_t random_a[8] = {1,1,1,1,1,1,1,1 };
+ uint8_t random_b[8] = {0x00};
+ uint8_t enc_random_b[8] = {0x00};
+ uint8_t rnd_ab[16] = {0x00};
+ uint8_t IV[8] = {0x00};
uint16_t len;
uint8_t receivedAnswer[MAX_FRAME_SIZE];
@@ -185,49 +184,69 @@ void MifareUReadBlock(uint8_t arg0, uint8_t arg1, uint8_t *datain)
}
// tag nonce.
- memcpy(enc_b,receivedAnswer+1,8);
+ memcpy(enc_random_b,receivedAnswer+1,8);
// decrypt nonce.
- tdes_2key_dec(b, enc_b, 8, key );
-
- Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x", enc_b[0],enc_b[1],enc_b[2],enc_b[3],enc_b[4],enc_b[5],enc_b[6],enc_b[7] );
- Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x", b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7] );
- rol(b,8);
+ tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
+ rol(random_b,8);
+ memcpy(rnd_ab ,random_a,8);
+ memcpy(rnd_ab+8,random_b,8);
+
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+ Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",
+ enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],
+ enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);
+
+ Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",
+ random_b[0],random_b[1],random_b[2],random_b[3],
+ random_b[4],random_b[5],random_b[6],random_b[7]);
+
+ Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
+ rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
+ rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
+
+ Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",
+ rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
+ rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );
+ }
- memcpy(ab ,a,8);
- memcpy(ab+8,b,8);
-
- Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[0],ab[1],ab[2],ab[3],ab[4],ab[5],ab[6],ab[7] );
- Dbprintf("AB: %02x %02x %02x %02x %02x %02x %02x %02x", ab[8],ab[9],ab[10],ab[11],ab[12],ab[13],ab[14],ab[15] );
-
- // encrypt
- tdes_2key_enc(enc_ab, ab, 16, key);
-
- Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", enc_ab[0],enc_ab[1],enc_ab[2],enc_ab[3],enc_ab[4],enc_ab[5],enc_ab[6],enc_ab[7] );
- Dbprintf("e_enc_ab: %02x %02x %02x %02x %02x %02x %02x %02x", enc_ab[8],enc_ab[9],enc_ab[10],enc_ab[11],enc_ab[12],enc_ab[13],enc_ab[14],enc_ab[15] );
+ // encrypt out, in, length, key, iv
+ tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
- len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, enc_ab, receivedAnswer, receivedAnswerPar, NULL);
+
+ len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, receivedAnswer, receivedAnswerPar, NULL);
if (len != 11) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
OnError(1);
return;
}
+
+ uint8_t enc_resp[8] = { 0 };
+ uint8_t resp_random_a[8] = { 0 };
+ memcpy(enc_resp, receivedAnswer+1, 8);
- // the tags' encryption of our nonce, A.
- memcpy(enc_key, receivedAnswer+1, 8);
-
- // clear B.
- memset(b, 0x00, 8);
-
- // decrypt
- tdes_2key_dec(b, enc_key, 8, key );
- if ( memcmp(a, b, 8) == 0 )
- Dbprintf("Verified key");
- else
+ // decrypt out, in, length, key, iv
+ tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
+ if ( memcmp(resp_random_a, random_a, 8) != 0 )
Dbprintf("failed authentication");
-
- Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x", a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7] );
- Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x", b[0],b[1],b[2],b[3],b[4],b[5],b[6],b[7] );
+
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {
+ Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
+ rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],
+ rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);
+
+ Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",
+ rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],
+ rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);
+
+ Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",
+ random_a[0],random_a[1],random_a[2],random_a[3],
+ random_a[4],random_a[5],random_a[6],random_a[7]);
+
+ Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",
+ resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],
+ resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);
+ }
}
if( mifare_ultra_readblock(blockNo, dataout) ) {
@@ -314,29 +333,85 @@ void MifareReadSector(uint8_t arg0, uint8_t arg1, uint8_t arg2, uint8_t *datain)
LEDsoff();
}
-void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)
+// arg0 = blockNo (start)
+// arg1 = Pages (number of blocks)
+// arg2 = useKey
+// datain = KEY bytes
+void MifareUReadCard(uint8_t arg0, uint16_t arg1, uint8_t arg2, uint8_t *datain)
{
// params
- uint8_t sectorNo = arg0;
- int Pages = arg1;
+ uint8_t blockNo = arg0;
+ uint16_t blocks = arg1;
+ bool useKey = (arg2 == 1);
int countpages = 0;
- byte_t dataout[176] = {0x00};;
- uint32_t cuid = 0x00;
+ uint8_t dataout[176] = {0x00};;
- LED_A_ON(); LED_B_OFF(); LED_C_OFF();
+ LEDsoff();
+ LED_A_ON();
clear_trace();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
- int len = iso14443a_select_card(NULL, NULL, &cuid);
+ int len = iso14443a_select_card(NULL, NULL, NULL);
if (!len) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Can't select card (RC:%d)",len);
OnError(1);
return;
}
- for (int i = 0; i < Pages; i++){
+ // authenticate
+ if ( useKey ) {
+
+ uint8_t key[16] = {0x00};
+ memcpy(key, datain, 16);
+
+ uint8_t random_a[8] = {1,1,1,1,1,1,1,1 };
+ uint8_t random_b[8] = {0x00};
+ uint8_t enc_random_b[8] = {0x00};
+ uint8_t rnd_ab[16] = {0x00};
+ uint8_t IV[8] = {0x00};
+
+ uint16_t len;
+ uint8_t receivedAnswer[MAX_FRAME_SIZE];
+ uint8_t receivedAnswerPar[MAX_PARITY_SIZE];
+
+ len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);
+ if (len != 11) {
+ if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);
+ OnError(1);
+ return;
+ }
+
+ // tag nonce.
+ memcpy(enc_random_b,receivedAnswer+1,8);
+
+ // decrypt nonce.
+ tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );
+ rol(random_b,8);
+ memcpy(rnd_ab ,random_a,8);
+ memcpy(rnd_ab+8,random_b,8);
+
+ // encrypt out, in, length, key, iv
+ tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);
+
+ len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, receivedAnswer, receivedAnswerPar, NULL);
+ if (len != 11) {
+ OnError(1);
+ return;
+ }
+
+ uint8_t enc_resp[8] = { 0 };
+ uint8_t resp_random_a[8] = { 0 };
+ memcpy(enc_resp, receivedAnswer+1, 8);
+
+ // decrypt out, in, length, key, iv
+ tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);
+ if ( memcmp(resp_random_a, random_a, 8) != 0 )
+ Dbprintf("failed authentication");
+ }
+
+ for (int i = 0; i < blocks; i++){
- len = mifare_ultra_readblock(sectorNo * 4 + i, dataout + 4 * i);
+ len = mifare_ultra_readblock(blockNo * 4 + i, dataout + 4 * i);
if (len) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Read block %d error",i);
@@ -347,27 +422,21 @@ void MifareUReadCard(uint8_t arg0, int arg1, uint8_t *datain)
}
}
- len = mifare_ultra_halt();
- if (len) {
+ if (mifare_ultra_halt()) {
if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Halt error");
OnError(3);
return;
}
- if (MF_DBGLEVEL >= MF_DBG_ALL) Dbprintf("Pages read %d", countpages);
+ if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("blocks read %d", countpages);
- len = 16*4; //64 bytes
+ len = blocks*4;
- // Read a UL-C
- if (Pages == 44 && countpages > 16)
- len = 176;
-
- cmd_send(CMD_ACK, 1, 0, 0, dataout, len);
+ cmd_send(CMD_ACK, 1, len, 0, dataout, len);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
}
-
//-----------------------------------------------------------------------------
// Select, Authenticate, Write a MIFARE tag.
// read block
@@ -482,12 +551,12 @@ void MifareUWriteBlock_Special(uint8_t arg0, uint8_t *datain)
{
uint8_t blockNo = arg0;
byte_t blockdata[4] = {0x00};
+ uint8_t uid[10] = {0x00};
memcpy(blockdata, datain,4);
-
- uint8_t uid[10] = {0x00};
- LED_A_ON(); LED_B_OFF(); LED_C_OFF();
+ LEDsoff();
+ LED_A_ON();
clear_trace();
iso14443a_setup(FPGA_HF_ISO14443A_READER_LISTEN);
@@ -1281,7 +1350,6 @@ void MifareCollectNonces(uint32_t arg0, uint32_t arg1){
packLen -= packSize;
packNum++;
}
-
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
LEDsoff();
}