PGP algorithms versus gnupg algs.

[Florian Weimer]

Fabio Roccatagliata <rocca@disi.unige.it> writes:

> What are the not patented algorithms used by gnupg ? And how they work ?

Most cryptographic algorithms which can be used with OpenPGP infringe
some patents in some countries (except RSA in the US, where the patent
has expired last year, and Rijndeal/AES).  Fortunately, only the IDEA
patent seems to be enforced actively, so GnuPG provides most (if not
all) OpenPGP algorithms except IDEA.