GPG and PGP
ben at adversary.org
Wed Mar 16 06:33:53 CET 2011
On 16/03/11 2:50 PM, David Shaw wrote:
> On Mar 15, 2011, at 11:41 PM, David Shaw wrote:
>> On Mar 15, 2011, at 11:28 PM, Ben McGinnes wrote:
>>> Is that 256 bits only or 256 bits and larger?
>> Strictly speaking, it's anything with a cipher blocksize that isn't
>> 128 bits. In the case of OpenPGP, that means AES (any of them) or
>> Twofish. GnuPG will flip on the MDC when it sees any of those
>> ciphers in the preferences, or failing that, it does the blocksize
> Err - meant to say "anything with a cipher blocksize that isn't 64
> bits". AES & Twofish are of course 128 bits.
Okay, so that would cover 3DES too? Surely there can't be many
ciphers that are limited that way still (or maybe there are and I just
don't use them).
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