Ok, so what is the revised statement? "Referring to situations" is pretty vague...
From what is on the slide, I can compute (x', E_{k'}(x')) for x' and k' of my choosing by just running the encryption algorithm. (I know that ideal ciphers are defined correctly elsewhere, and agree that their…
The slide starting on PDF page 83 seems wrong? If I know (x, E_k(x)) for some x (or even without knowing them), then I can trivially compute (x', E_{k'}(x')) for k' and x' of my choosing. Somewhat disappointing, since…
Ok, so what is the revised statement? "Referring to situations" is pretty vague...
From what is on the slide, I can compute (x', E_{k'}(x')) for x' and k' of my choosing by just running the encryption algorithm. (I know that ideal ciphers are defined correctly elsewhere, and agree that their…
The slide starting on PDF page 83 seems wrong? If I know (x, E_k(x)) for some x (or even without knowing them), then I can trivially compute (x', E_{k'}(x')) for k' and x' of my choosing. Somewhat disappointing, since…