cert-digest-algo clarification

[Sam Smith]

What is the difference between "personal-digest-preferences" AND "default-preference-list"

My understanding is that "default-preference-list" will define what is used for new key generation. 
Based on what I recently read in this mailing list, "default-preference-list" also defines the "showpref" command,
which other users can see on my public key to know my preferences. Assuming this is all correct:

what does "personal-digest-preferences" do?


> To: smickson at hotmail.com
> From: laurent.jumet at skynet.be
> Subject: RE: cert-digest-algo clarification
> Date: Thu, 12 Jul 2012 16:04:43 +0200
> 
> 
> Hello Sam !
> 
> Sam Smith <smickson at hotmail.com> wrote:
> 
> > regarding #1: you said there are no preferences. Assuming I don't set
> > cert-digest-algo, what is the HASH that is used to sign keys with?
> 
> SHA-1
> 
>     Here's an opinion:
> http://www.debian-administration.org/users/dkg/weblog/48
> 
> -- 
> Laurent Jumet
>       KeyID: 0xCFAF704C
 		 	   		  
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