On Sep 23, 2008, at 5:36 PM, Faramir wrote:

Cifrado: AES256, AES192, AES, CAST5, 3DES
Resumen: SHA1, SHA256, RIPEMD160
Compresión: ZLIB, BZIP2, ZIP, Sin comprimir
Características: MDC, Sevidor de claves no-modificar

So I figure the default most preferred encryption algo will be AES256,
not 3DES... or am I wrong?

Nope, you're right. Your most preferred encryption algorithm is AES256, followed, by AES192, etc.

As to what algorithm would be used when someone encrypts a message to you depends on who else is a recipient. Let's say the message was encrypted to me (key 99242560) and you. My preferences are (and I really need to update these) AES, TWOFISH, CAST5, BLOWFISH, 3DES. The only algorithms that are even possible here (because we both have them) are AES, CAST5, and 3DES. AES is clearly the most popular of these three, so AES will be chosen. Between you and a different person might give a different result.

Most keys generated with GnuPG in the past few years have the same preferences as you (they're the defaults now). For a message going to those keys, AES256 will be chosen, as everyone favors it.

David
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