🚀 go-pugleaf

Graham.Shaw@newcastle.ac.uk (G.D.Shaw) writes:

>Some questions:

>Is differential cryptanalysis exclusively applicable to situations
>where a chosen plaintext attack is possible?

Yes.

>If so, does the use of a random header followed by encryption in a
>chaining mode defeat such an attack?

I'm not sure, I expect it does if the header is long enough.

>Finally, is vulnerability to differential cryptanalysis (or indeed
>chosen plaintext attacks in general) believed to imply vulnerability
>to other types of attack?

Nobody knows, what is known is the reverse:

invulnerability to chosen-plaintext attack implies invulnerability to
known-plaintext or ciphertext-only attack (unless there are some weak keys
or plain text being used etc).