Most commonly used OpenPGP symmetric ciphers

Atom 'Smasher' atom-gpg at
Wed Apr 14 23:18:07 CEST 2004

Hash: SHA1

> The OpenPGP standard supports many symmetric key algorithms (IDEA,
> 3-DES, CAST5, AES, Blowfish, SAFER). I was wondering which of these
> algorithms are most commonly used in the industry. Is there a most
> commonly used algorithm from this list?

most people never change the defaults, so AES-256 seems to be the most
widely used first preference with newer keys.

for a better answer of what preferences are really out there, maybe
someone who maintains a key-server can run that report.


 PGP key -
 3EBE 2810 30AE 601D 54B2 4A90 9C28 0BBF 3D7D 41E3

	"Proprietary software seeks to maximize its value
	 solely in monetary terms by achieving a monopoly.
	 Open Source software maximizes its value by assuring
	 that a monopoly cannot be achieved."
		--  Mark Webbink, Senior Vice President and
			General Counsel of Red Hat
Version: GnuPG v1.2.4 (FreeBSD)
Comment: What is this gibberish?  -


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