Session Key Questions

Werner Koch wk at gnupg.org
Tue Oct 21 16:37:59 CEST 2008


On Tue, 21 Oct 2008 16:23, kevhilton at gmail.com said:
> When the session key is randomly generated (asymmetric encryption),
> how large is the session key?  Is the length set or does it depend on
> other parameter such as the length of the DSA/RSA key or hash?

It depends on the key length of the cipher algo.  Thus it is 128 bit for
AES, 256 bit for AES256, 128 bit for CAST 5 and so forth.  Blowfish is
used with 128 bit as specified by OpenPGP.


Shalom-Salam,

   Werner

-- 
Die Gedanken sind frei.  Auschnahme regelt ein Bundeschgesetz.




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