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CFS Questions (protocol? safer/idea linkings?)
Im trying to get a handle on exactly what protocol CFS is using, but
some things are still eluding me.
The standard mode for cfs directories is the 2-key hybrid 3des. 2-key
3des uses the encrypt-decrypt-encrypt scheme, right?
The keyfiles for cfs appear to be 256 bits, which would seem to break
into either four 64bit keys, or two 128 bit keys - is either of these
right or neither? Im lost.
Additionally, it /looks/ like what is happening is that cfs is storing
its 2 des keys (of unknown length) in a keyfile and then encrypting that
with the users passphrase/word. Is that right? And if so, isn't that a
significant weakness? Im wondering how it is generating a keypair from
the passphrase to encrypt the bulk keys...
If someone has a full description of CFS's protocol schemes, i'd really
appreciate it if you could send them (full text or a URL) to me
([email protected]), or to cypherpunks. Also if anyone has/has seen diffs
for linking IDEA to cfs i'd very much like any info you have (source is
always welcome! :) ) ..
Additionally, if anyone has pointers to information about Safer, id
apreciate it. :)