Session Key algorithm

Werner Koch wk at
Mon Jun 23 17:24:05 CEST 2008

On Fri, 20 Jun 2008 13:15, Yasuhiro.Funaki at said:

> I am wondering that which algorithm is used for the session key in GnuPG
> 1.4.8?

That is all described in RFC4880.

> I understand the session key is symmetric key and  used for message
> encryption, my concern is the compatibility with PGP commercial.

Both are OpenPGP compliant.

> i.e PGP commercial use IDEA but GnuPG does not have it, then message can

No need for this because the preference system of OpenPGP handles the
selection of the symmetric encryption algorithm.



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