ADD: added support for some NTAG/EV1 commands to "hf 14a sim" on device side.

          0x1B (authenticate)
          0x3a (fast read)
          0x60 (get_version)

       This is used in a new mode on client,  "hf 14a sim t 7"

diff --git a/armsrc/iso14443a.c b/armsrc/iso14443a.c
index 84fbd661422b34c6520f8e346df9de67e0407824..372fa3d1d5fbbc170b244349bc69f2aef666fd39 100644 (file)
--- a/armsrc/iso14443a.c
+++ b/armsrc/iso14443a.c
@@ -913,7 +913,8 @@ bool prepare_tag_modulation(tag_response_info_t* response_info, size_t max_buffe
 // Coded responses need one byte per bit to transfer (data, parity, start, stop, correction) 
 // 28 * 8 data bits, 28 * 1 parity bits, 7 start bits, 7 stop bits, 7 correction bits
 // -> need 273 bytes buffer
-#define ALLOCATED_TAG_MODULATION_BUFFER_SIZE 273
+// 44 * 8 data bits, 44 * 1 parity bits, 9 start bits, 9 stop bits, 9 correction bits
+#define ALLOCATED_TAG_MODULATION_BUFFER_SIZE 370  //273
 
 bool prepare_allocated_tag_modulation(tag_response_info_t* response_info) {
   // Retrieve and store the current buffer index
@@ -947,6 +948,12 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
        
        uint8_t sak;
 
+       uint8_t blockzeros[512];
+       memset(blockzeros, 0x00, sizeof(blockzeros));
+                                       
+       // PACK response to PWD AUTH for EV1/NTAG
+       uint8_t response8[4];
+       
        // The first response contains the ATQA (note: bytes are transmitted in reverse order).
        uint8_t response1[2];
        
@@ -959,7 +966,7 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
                } break;
                case 2: { // MIFARE Ultralight
                        // Says: I am a stupid memory tag, no crypto
-                       response1[0] = 0x04;
+                       response1[0] = 0x44;
                        response1[1] = 0x00;
                        sak = 0x00;
                } break;
@@ -987,6 +994,16 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
                        response1[1] = 0x00;
                        sak = 0x09;
                } break;
+               case 7: { // NTAG?
+                       // Says: I am a NTAG, 
+                       response1[0] = 0x44;
+                       response1[1] = 0x00;
+                       sak = 0x00;
+                       // PACK
+                       response8[0] = 0x80;
+                       response8[1] = 0x80;
+                       ComputeCrc14443(CRC_14443_A, response8, 2, &response8[2], &response8[3]);
+               } break;                
                default: {
                        Dbprintf("Error: unkown tagtype (%d)",tagType);
                        return;
@@ -1043,7 +1060,11 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
        // TC(1) = 0x02: CID supported, NAD not supported
        ComputeCrc14443(CRC_14443_A, response6, 4, &response6[4], &response6[5]);
 
-       #define TAG_RESPONSE_COUNT 7
+       // Prepare GET_VERSION (different for EV-1 / NTAG)
+       //uint8_t response7_EV1[] = {0x00, 0x04, 0x03, 0x01, 0x01, 0x00, 0x0b, 0x03, 0xfd, 0xf7};  //EV1 48bytes VERSION.
+       uint8_t response7_NTAG[] = {0x00, 0x04, 0x04, 0x02, 0x01, 0x00, 0x11, 0x03, 0x01, 0x9e}; //NTAG 215
+       
+       #define TAG_RESPONSE_COUNT 9
        tag_response_info_t responses[TAG_RESPONSE_COUNT] = {
                { .response = response1,  .response_n = sizeof(response1)  },  // Answer to request - respond with card type
                { .response = response2,  .response_n = sizeof(response2)  },  // Anticollision cascade1 - respond with uid
@@ -1052,6 +1073,8 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
                { .response = response3a, .response_n = sizeof(response3a) },  // Acknowledge select - cascade 2
                { .response = response5,  .response_n = sizeof(response5)  },  // Authentication answer (random nonce)
                { .response = response6,  .response_n = sizeof(response6)  },  // dummy ATS (pseudo-ATR), answer to RATS
+               { .response = response7_NTAG,  .response_n = sizeof(response7_NTAG)  },  // EV1/NTAG GET_VERSION response
+               { .response = response8,   .response_n = sizeof(response8) },  // EV1/NTAG PACK response
        };
 
        // Allocate 512 bytes for the dynamic modulation, created when the reader queries for it
@@ -1127,10 +1150,42 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
                } else if(receivedCmd[1] == 0x70 && receivedCmd[0] == 0x95) {   // Received a SELECT (cascade 2)
                        p_response = &responses[4]; order = 30;
                } else if(receivedCmd[0] == 0x30) {     // Received a (plain) READ
-                       EmSendCmdEx(data+(4*receivedCmd[1]),16,false);
-                       // Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]);
-                       // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below
-                       p_response = NULL;
+                       uint8_t block = receivedCmd[1];
+                       if ( tagType == 7 ) {
+                               
+                               if ( block < 4 ) {
+                                   //NTAG 215
+                                       uint8_t start = 4 * block;
+                                       
+                                       uint8_t blockdata[50] = {
+                                       data[0],data[1],data[2], 0x88 ^ data[0] ^ data[1] ^ data[2],
+                                       data[3],data[4],data[5],data[6],
+                                       data[3] ^ data[4] ^ data[5] ^ data[6],0x48,0x0f,0xe0,
+                                       0xe1,0x10,0x12,0x00,
+                                       0x03,0x00,0xfe,0x00, 
+                                       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+                                       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+                                       0x00,0x00,0x00,0x00,
+                                       0x00,0x00};
+                                       ComputeCrc14443(CRC_14443_A, blockdata+start, 16, blockdata+start+17, blockdata+start+18);
+                                       EmSendCmdEx( blockdata+start, 18, false);
+                               } else {                                
+                                       ComputeCrc14443(CRC_14443_A, blockzeros,16, blockzeros+17,blockzeros+18);
+                                       EmSendCmdEx(blockzeros,18,false);
+                               }
+                               p_response = NULL;
+                               
+                       } else {                        
+                               EmSendCmdEx(data+(4*block),16,false);
+                               // Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]);
+                               // We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below
+                               p_response = NULL;
+                       }
+               } else if(receivedCmd[0] == 0x3A) {     // Received a FAST READ   -- just returns all zeros.
+                               uint8_t len = (receivedCmd[2]- receivedCmd[1] ) * 4;
+                               ComputeCrc14443(CRC_14443_A, blockzeros,len, blockzeros+len+1, blockzeros+len+2);
+                               EmSendCmdEx(blockzeros,len+2,false);                            
+                               p_response = NULL;                      
                } else if(receivedCmd[0] == 0x50) {     // Received a HALT
 
                        if (tracing) {
@@ -1138,7 +1193,12 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
                        }
                        p_response = NULL;
                } else if(receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61) {   // Received an authentication request
-                       p_response = &responses[5]; order = 7;
+                                       
+                       if ( tagType == 7 ) {   // IF NTAG /EV1  0x60 == GET_VERSION, not a authentication request.
+                               p_response = &responses[7];
+                       } else {
+                               p_response = &responses[5]; order = 7;
+                       }
                } else if(receivedCmd[0] == 0xE0) {     // Received a RATS request
                        if (tagType == 1 || tagType == 2) {     // RATS not supported
                                EmSend4bit(CARD_NACK_NA);
@@ -1189,7 +1249,17 @@ void SimulateIso14443aTag(int tagType, int flags, int uid_2nd, byte_t* data)
                                        memset(ar_nr_responses, 0x00, len);
                                }
                        }
-               } else {
+               } else if (receivedCmd[0] == 0x1a ) // ULC authentication
+               {
+                       
+               }
+               else if (receivedCmd[0] == 0x1b) // NTAG / EV-1 authentication
+               {
+                       if ( tagType == 7 ) {
+                               p_response =  &responses[8]; // PACK response
+                       }
+               }
+               else {
                        // Check for ISO 14443A-4 compliant commands, look at left nibble
                        switch (receivedCmd[0]) {
 

diff --git a/client/cmdhf14a.c b/client/cmdhf14a.c
index 931ef990be2d4e81d856dcc082c2cdced7cec59e..8d6afadd8feb59d9863f60886ba42c4ec21fd136 100644 (file)
--- a/client/cmdhf14a.c
+++ b/client/cmdhf14a.c
@@ -464,6 +464,7 @@ static int usage_hf_14a_sim(void)
        PrintAndLog("            4 = ISO/IEC 14443-4");
        PrintAndLog("            5 = MIFARE Tnp3xxx");
        PrintAndLog("            6 = MIFARE Mini");
+       PrintAndLog("            7 = AMIIBO (NTAG 215),  pack 0x8080");
        PrintAndLog("    u     : 4 or 7 byte UID");
        PrintAndLog("    x     : (Optional) performs the 'reader attack', nr/ar attack against a legitimate reader");
        PrintAndLog("\n   sample : hf 14a sim t 1 u 1122344");