Encryption Algorithm for GnuPG?
dgouttegattat at incenp.org
Mon May 27 13:14:19 CEST 2019
On Sun, May 26, 2019 at 11:30:18PM -0700, Procopius via Gnupg-users wrote:
>What is the encryption engine for the current GnuPG.
There’s no single symmetric encryption algorithm. OpenPGP allows a set
of algorithms: 3DES, IDEA, CAST5, AES, Blowfish, Twofish, and Camellia
[1,2]. GnuPG supports all of them.
>I know IDEA is proprietary so that can’t be used, is this correct?
All patents on IDEA have now expired and IDEA is supported by GnuPG.
>If it’s NIST AES that is under the US Government? Wouldn’t that be in
>danger of a US back door in the algorithm?
Rijndael was actually designed by a team of Belgian cryptologists. NIST
evaluated it amongst the other candidate ciphers of the AES competition
and eventually selected it as the winner, but was not involved in its
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