3 ms·

A block cipher cannot produce the same output block for two distinct input blocks because it is reversible.

• acqq 13y ago
  So "just" an order of 2 to 128 block samples has to be collected to see that it's generated? Good luck with that.
  • caf 13y ago
    Nope, AES has a 128-bit block size so you "only" need about 2^64 blocks.