wk at gnupg.org
Wed Sep 17 16:47:02 CEST 2008
On Wed, 17 Sep 2008 16:16, vedaal at hush.com said:
> for ?? historical reasons of compatibility ?? with pgp 5+
> the default cipher that will be used for encryption, and also for
> protection of the secret key, is CAST-5, not 3DES
Nope, 3DES is the only MUST cipher algorithm and thus used as the
last-resort if the preference system can't decide upon onather
CAST5 is like IDEA only a SHOULD in OpenPGP as per rfc2440. The
updated OpenPGP (rfc4880) changed this SHOULD algorithms to AES-128
and CAST5 but kept 3DES as MUST algorithm.
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