Merge pull request #2453 from mwalker33/Indala-26-parity

Indala 26 parity

client/src/cmdlfindala.c

@@ -1164,12 +1164,27 @@ int getIndalaBits(uint8_t fc, uint16_t cn, uint8_t *bits) {
     }
 
     // add parity
-    bits[34] = 1; // p1  64 - 30 = 34
+    // bits[34] = 1; // p1  64 - 30 = 34
-    bits[38] = 1; // p2  68 - 30 = 38
+    // bits[38] = 1; // p2  68 - 30 = 38
 
     // 92 = 62
     // 93 = 63
     
+    bits[34] = 0; // parity for odd bits
+    bits[38] = 0; // parity for even bits
+    uint8_t p1 = 1;
+    uint8_t p2 = 1;
+
+    for (int i=33; i < 64; i++) {
+        if (i%2) 
+            p1 ^= bits[i];
+        else
+            p2 ^= bits[i];
+    }
+
+    bits[34] = p1; // parity for odd bits
+    bits[38] = p2; // parity for even bits
+
     return PM3_SUCCESS;
 }