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 >> test. > > 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). Regards, Ben
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