- A[6] ^= (unsigned char)((t & 0xff) >> 8);
- A[5] ^= (unsigned char)((t & 0xff) >> 16);
- A[4] ^= (unsigned char)((t & 0xff) >> 24);
+ A[6] ^= (unsigned char)((t >> 8) & 0xff);
+ A[5] ^= (unsigned char)((t >> 16) & 0xff);
+ A[4] ^= (unsigned char)((t >> 24) & 0xff);