small refactoring

[proxmark3-svn] / client / loclass / cipher.c

diff --git a/client/loclass/cipher.c b/client/loclass/cipher.c
index a701da31934164630e4df7f80605149a449c3dbd..57bc831fe1f97dda82c3c8fa9a940f77721ec0ea 100644 (file)
--- a/client/loclass/cipher.c
+++ b/client/loclass/cipher.c
@@ -114,9 +114,9 @@ uint8_t _select(bool x, bool y, uint8_t r)
        bool r6 = r >> 1 & 0x1;
        bool r7 = r & 0x1;
 
        bool r6 = r >> 1 & 0x1;
        bool r7 = r & 0x1;
 

-       bool z0 = (r0 & r2) ^ (r1 & ~r3) ^ (r2 | r4);
+       bool z0 = (r0 & r2) ^ (r1 & !r3) ^ (r2 | r4);

        bool z1 = (r0 | r2) ^ ( r5 | r7) ^ r1 ^ r6 ^ x ^ y;
        bool z1 = (r0 | r2) ^ ( r5 | r7) ^ r1 ^ r6 ^ x ^ y;

-       bool z2 = (r3 & ~r5) ^ (r4 & r6 ) ^ r7 ^ x;
+       bool z2 = (r3 & !r5) ^ (r4 & r6 ) ^ r7 ^ x;

 
        // The three bitz z0.. z1 are packed into a uint8_t:
        // 00000ZZZ
 
        // The three bitz z0.. z1 are packed into a uint8_t:
        // 00000ZZZ