added nested authentication "not implemented" warning

[proxmark3-svn] / client / mifarehost.c

diff --git a/client/mifarehost.c b/client/mifarehost.c
index 398e4f15ed1586daeede8b9d18584942cce22bf3..d204bf12c87e9a3358eba16c392e05a80ae980dc 100644 (file)
--- a/client/mifarehost.c
+++ b/client/mifarehost.c
@@ -827,20 +827,30 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                if (len ==4) {\r
                        traceState = TRACE_IDLE;\r
 \r
-                       at_enc = bytes_to_num(data, 4);\r
-\r
-                       //  decode key here)\r
-                       ks2 = ar_enc ^ prng_successor(nt, 64);\r
-                       ks3 = at_enc ^ prng_successor(nt, 96);\r
-                       revstate = lfsr_recovery64(ks2, ks3);\r
-                       lfsr_rollback_word(revstate, 0, 0);\r
-                       lfsr_rollback_word(revstate, 0, 0);\r
-                       lfsr_rollback_word(revstate, nr_enc, 1);\r
-                       lfsr_rollback_word(revstate, uid ^ nt, 0);\r
+                       if (!traceCrypto1) {\r
+                               at_enc = bytes_to_num(data, 4);\r
+\r
+                               //  decode key here)\r
+                               ks2 = ar_enc ^ prng_successor(nt, 64);\r
+                               ks3 = at_enc ^ prng_successor(nt, 96);\r
+                               revstate = lfsr_recovery64(ks2, ks3);\r
+                               lfsr_rollback_word(revstate, 0, 0);\r
+                               lfsr_rollback_word(revstate, 0, 0);\r
+                               lfsr_rollback_word(revstate, nr_enc, 1);\r
+                               lfsr_rollback_word(revstate, uid ^ nt, 0);\r
+\r
+                               crypto1_get_lfsr(revstate, &lfsr);\r
+                               printf("key> %x%x\n", (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF));\r
+                               AddLogUint64(logHexFileName, "key> ", lfsr);\r
+                       } else {\r
+                               printf("key> nested not implemented!\n");\r
+                               at_enc = bytes_to_num(data, 4);\r
+                               \r
+                               crypto1_destroy(traceCrypto1);\r
 \r
-                       crypto1_get_lfsr(revstate, &lfsr);\r
-                       printf("key> %x%x\n", (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF));\r
-                       AddLogUint64(logHexFileName, "key> ", lfsr);\r
+                               // not implemented\r
+                               traceState = TRACE_ERROR;\r
+                       }\r
 \r
                        int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;\r
                        if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);\r
@@ -858,15 +868,6 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
 \r
                        // set cryptosystem state\r
                        traceCrypto1 = lfsr_recovery64(ks2, ks3);\r
-\r
-//     nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\r
-\r
-       /*      traceCrypto1 = crypto1_create(lfsr); // key in lfsr\r
-               crypto1_word(traceCrypto1, nt ^ uid, 0);\r
-               crypto1_word(traceCrypto1, ar, 1);\r
-               crypto1_word(traceCrypto1, 0, 0);\r
-               crypto1_word(traceCrypto1, 0, 0);*/\r
-\r
                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r