Comparison of GnuPG & NAI/PGP features.
wk at gnupg.org
Fri Jan 7 12:38:15 CET 2000
On Fri, 7 Jan 2000, Simpson, Sam wrote:
> I note that the GnuPG web page says: "Better functionality than
> PGP and some security enhancements.". Apart from more algorithms
> & better ability to select algorithms, what does this mean????
* You have the real source code and everone is able to build the
executable from this source. I am not sure whether you can do
this with the PGP books and noone can be sure that these books
reflect the actual PGP executables delivered by NAI.
* Stores secret keys in a memory area which will not be swapped
out to the disk.
* All operations involving confidential material (session keys, some
hashs, secret keys, intermediate results) are althoug done in this
* It can use ElGamal for signing by creating all ElGamal keys in a
secure way. Uses this algorith even for DSA keys, just in case.
I think PGP now uses the same Lim-Lee algorithm now and I am not
sure whether this is at all an advantage.
* It never uses any temporary files.
* Has quite a lot of features you expect from a Unix tool.
> I have constructed a (very) small table to compare the algorithms
> available, it's at: http://www.scramdisk.clara.net/compare.html
Please get this Skipjack out of the list. It whish I never wrote this
module - it used to be just an experiment.
As I only have this 6.5.1 pgp here and it even refuses to create keys
with a message saying it can't open the keyrings (although strace show
that it indeed opens them), I don't know what this SHA-1x is.
Werner Koch at guug.de www.gnupg.org keyid 621CC013
Boycott Amazon! - http://www.gnu.org/philosophy/amazon.html
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