[Cryptography] Summary: compression before encryption
barney at databus.com
Wed Jan 21 18:12:11 EST 2015
On Sun, Jan 18, 2015 at 01:55:05PM -0800, Ray Dillinger wrote:
> It is also ridiculous to think that with any modern cipher a
> one-bit difference in a megabyte file will yield a completely
> different ciphertext with no way to tell which bit with any
> probability greater than the file length in bits.
If you'll pardon a naive question, what happened to IVs? How do you
arrange to get two ciphertexts with the same IV? I thought the point
of IVs was so the attacker can't recognize identical plaintexts.
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