determining encryption algorithm

[Disastry@saiknes.lv.NO.SPAM.NET]

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Jason Hazendorf wrote:
> I'm guessing pgpdump can't show it because the
> algorithm tag is encrypted (using public key
> encryption) along with the session/symmetric key.

exactly

> But gpg --list-packets (which does ask you for your
> passphrase) doesn't seem to show that information
> either.
> 
> Is there any easy way to determine what symmetric
> algorithm was used to encrypt files?

yes:
gpg --list-packets --show-session-key
will print algorithm tag and session key.

== <EOF> ==
Disastry  http://i.am/disastry/
http://disastry.dhs.org/pgp <----PGP plugins for Netscape and MDaemon
 ^--GPG for Win32 (supports loadable modules and IDEA)
 ^---PGP 2.6.3ia-multi04 (supports IDEA, CAST5, BLOWFISH, TWOFISH,
     AES, 3DES ciphers and MD5, SHA1, RIPEMD160 hashes)
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