GnuPG Defaults

Robert J. Hansen rjh at
Wed Sep 17 07:28:35 CEST 2008

John Clizbe wrote in response to Kevin Hilton:
> Because RSA was patent-encumbered up until Sept 6, 2000?

When PGP 2.6 first came out, there was a big legal kerfuffle over
intellectual property rights to the RSA and IDEA algorithms.

When PGP 5 came out, PGP embraced different, non-encumbered algorithms
(DSA and CAST5).

Since OpenPGP grew directly out of PGP 5, OpenPGP gets a lot of
historical baggage from PGP 5's decisions.

That's the nutshell explanation.

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