encryption algorithm

Werner Koch wk at gnupg.org
Wed Dec 18 11:41:38 CET 2013

On Wed, 18 Dec 2013 02:27, rjh at sixdemonbag.org said:

> because you just shifted to arguing that "since GnuPG defaults to
> AES-256, we need to use RSA-15000 by default otherwise the asymmetric


    The rationale why we use the order AES256,192,128 is
    for compatibility reasons with PGP.  If gpg would
    define AES128 first, we would get the somewhat
    confusing situation:
      gpg -r pgpkey -r gpgkey  ---gives--> AES256
      gpg -r gpgkey -r pgpkey  ---gives--> AES

PGP prefers AES256 for the simple reason that the marketing deptartment
told the engineering that 256 sounds stronger than 128 (according to one
of their lead developers).



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