Changing preferences

David Shaw dshaw at
Wed Sep 24 00:22:04 CEST 2008

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.


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