]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - armsrc/mifareutil.c
CHG: "hf mfu info" now always tries to read the NDEF CC. (was restricted to only...
[proxmark3-svn] / armsrc / mifareutil.c
index 8fa5e498062e57f5e5e8795687c36e0c1a0f5a94..8c44445f5c01a614cc41a0b88de01617c03d0123 100644 (file)
@@ -18,6 +18,7 @@
 #include "iso14443a.h"\r
 #include "crapto1.h"\r
 #include "mifareutil.h"\r
+#include "des.h"\r
 \r
 int MF_DBGLEVEL = MF_DBG_ALL;\r
 \r
@@ -110,6 +111,27 @@ int mifare_sendcmd_short_mfucauth(struct Crypto1State *pcs, uint8_t crypted, uin
        return len;\r
 }\r
 \r
+int mifare_sendcmd_short_mfuev1auth(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t *data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
+{\r
+    uint8_t dcmd[7];\r
+       int len; \r
+    dcmd[0] = cmd;\r
+    memcpy(dcmd+1,data,4);\r
+       AppendCrc14443a(dcmd, 5);\r
+       \r
+       ReaderTransmit(dcmd, sizeof(dcmd), timing);\r
+       len = ReaderReceive(answer, answer_parity);\r
+       if(!len) {\r
+        if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("Authentication failed. Card timeout.");\r
+        len = ReaderReceive(answer,answer_parity);\r
+    }\r
+    if(len==1) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR)   Dbprintf("NAK - Authentication failed.");\r
+               return 1;\r
+        }\r
+       return len;\r
+}\r
+\r
 int mifare_sendcmd_shortex(struct Crypto1State *pcs, uint8_t crypted, uint8_t cmd, uint8_t data, uint8_t *answer, uint8_t *answer_parity, uint32_t *timing)\r
 {\r
        uint8_t dcmd[4], ecmd[4];\r
@@ -288,48 +310,111 @@ int mifare_classic_readblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blo
 }\r
 \r
 // mifare ultralight commands\r
-int mifare_ultra_auth1(uint8_t *blockData){\r
+int mifare_ul_ev1_auth(uint8_t *keybytes, uint8_t *pack){\r
 \r
        uint16_t len;\r
-       uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
-       uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
+       uint8_t resp[4];\r
+       uint8_t respPar[1];\r
+       uint8_t key[4] = {0x00};        \r
+       memcpy(key, keybytes, 4);\r
+       \r
+       Dbprintf("EV1 Auth : %02x%02x%02x%02x", key[0], key[1], key[2], key[3]);\r
+       len = mifare_sendcmd_short_mfuev1auth(NULL, 0, 0x1B, key, resp, respPar, NULL);\r
+       if (len != 4) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x %u", resp[0], len);\r
+               return 0;\r
+       }\r
        \r
-       len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, receivedAnswer,receivedAnswerPar ,NULL);\r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED)\r
+               Dbprintf("Auth Resp: %02x%02x%02x%02x", resp[0],resp[1],resp[2],resp[3]);\r
+       \r
+       memcpy(pack, resp, 4);\r
+       return 1;\r
+}\r
+\r
+int mifare_ultra_auth(uint8_t *keybytes){\r
+\r
+       // 3des2k\r
+       uint8_t random_a[8] = {1,1,1,1,1,1,1,1};\r
+       uint8_t random_b[8] = {0x00};\r
+       uint8_t enc_random_b[8] = {0x00};\r
+       uint8_t rnd_ab[16] = {0x00};\r
+       uint8_t IV[8] = {0x00};\r
+       uint8_t key[16] = {0x00};       \r
+       memcpy(key, keybytes, 16);\r
+       \r
+       uint16_t len;\r
+       uint8_t resp[19] = {0x00};\r
+       uint8_t respPar[3] = {0,0,0};\r
+\r
+       // REQUEST AUTHENTICATION\r
+       len = mifare_sendcmd_short(NULL, 1, 0x1A, 0x00, resp, respPar ,NULL);\r
        if (len != 11) {\r
-               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
-               return 1;\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
+               return 0;\r
        }\r
 \r
-       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
-               Dbprintf("Auth1 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
-                       receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
-                       receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
-                       receivedAnswer[10]);\r
-               }\r
-       memcpy(blockData, receivedAnswer, 11);\r
-       return 0;\r
-}\r
+       // tag nonce.\r
+       memcpy(enc_random_b,resp+1,8);\r
 \r
-int mifare_ultra_auth2(uint8_t *key, uint8_t *blockData){\r
+       // decrypt nonce.\r
+       tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );\r
+       rol(random_b,8);\r
+       memcpy(rnd_ab  ,random_a,8);\r
+       memcpy(rnd_ab+8,random_b,8);\r
+       \r
+       if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
+               Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                       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]);\r
+                       \r
+               Dbprintf("    B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                       random_b[0],random_b[1],random_b[2],random_b[3],random_b[4],random_b[5],random_b[6],random_b[7]);\r
 \r
-       uint16_t len;\r
-       uint8_t receivedAnswer[MAX_FRAME_SIZE];\r
-       uint8_t receivedAnswerPar[MAX_PARITY_SIZE];\r
+               Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                               rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
+                               \r
+               Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                               rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );\r
+       }\r
        \r
-       len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, key, receivedAnswer, receivedAnswerPar, NULL);\r
+       // encrypt    out, in, length, key, iv\r
+       tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r
+\r
+       len = mifare_sendcmd_short_mfucauth(NULL, 1, 0xAF, rnd_ab, resp, respPar, NULL);\r
        if (len != 11) {\r
-               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", receivedAnswer[0]);\r
-               return 1;\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("Cmd Error: %02x", resp[0]);\r
+               return 0;\r
        }\r
+\r
+       uint8_t enc_resp[8] = { 0,0,0,0,0,0,0,0 };\r
+       uint8_t resp_random_a[8] = { 0,0,0,0,0,0,0,0 };\r
+       memcpy(enc_resp, resp+1, 8);\r
        \r
+       // decrypt    out, in, length, key, iv \r
+       tdes_2key_dec(resp_random_a, enc_resp, 8, key, enc_random_b);\r
+       if ( memcmp(resp_random_a, random_a, 8) != 0 ) {\r
+               if (MF_DBGLEVEL >= MF_DBG_ERROR) Dbprintf("failed authentication");\r
+               return 0;\r
+       }       \r
+\r
        if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
-               Dbprintf("Auth2 Resp: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",\r
-                       receivedAnswer[0],receivedAnswer[1],receivedAnswer[2],receivedAnswer[3],receivedAnswer[4],\r
-                       receivedAnswer[5],receivedAnswer[6],receivedAnswer[7],receivedAnswer[8],receivedAnswer[9],\r
-                       receivedAnswer[10]);\r
+               Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x", \r
+                               rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],\r
+                               rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
+\r
+               Dbprintf("e_AB: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                               rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],\r
+                               rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15]);\r
+\r
+               Dbprintf("a: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                               random_a[0],random_a[1],random_a[2],random_a[3],\r
+                               random_a[4],random_a[5],random_a[6],random_a[7]);\r
+                               \r
+               Dbprintf("b: %02x %02x %02x %02x %02x %02x %02x %02x",\r
+                               resp_random_a[0],resp_random_a[1],resp_random_a[2],resp_random_a[3],\r
+                               resp_random_a[4],resp_random_a[5],resp_random_a[6],resp_random_a[7]);\r
        }\r
-       memcpy(blockData, receivedAnswer, 11);\r
-       return 0;\r
+       return 1;\r
 }\r
 \r
 int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)\r
@@ -360,14 +445,13 @@ int mifare_ultra_readblock(uint8_t blockNo, uint8_t *blockData)
        return 0;\r
 }\r
 \r
-\r
 int mifare_classic_writeblock(struct Crypto1State *pcs, uint32_t uid, uint8_t blockNo, uint8_t *blockData) \r
 {\r
        // variables\r
        uint16_t len, i;        \r
-       uint32_t pos;\r
-       uint8_t par[3] = {0};           // enough for 18 Bytes to send\r
-       byte_t res;\r
+       uint32_t pos = 0;\r
+       uint8_t par[3] = {0x00};                // enough for 18 Bytes to send\r
+       byte_t res = 0;\r
        \r
        uint8_t d_block[18], d_block_enc[18];\r
        uint8_t receivedAnswer[MAX_MIFARE_FRAME_SIZE];\r
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