Not quite! That can be a problem with CBC if you're using the intitialisation vector "hack"... but only the first block would be affected! Hint: it's a big image, and the blocks are really small... watch for next post's retrospective for the full explanation :)
Not quite! That can be a problem with CBC if you're using the intitialisation vector "hack"... but only the first block would be affected! Hint: it's a big image, and the blocks are really small... watch for next post's retrospective for the full explanation :)