Reusing signed user ID or attribute

Daniele Ricci daniele.athome at
Sun Jan 19 19:05:20 CET 2014

Thank you Daniel,
it actually sounds very right. Now that I think about it, storing this
kind of data in the public key block isn't so good afterall. I will
investigate over this and ask to the right ML next time.
Thank you everyone for your help.

On Sun, Jan 19, 2014 at 5:21 PM, Daniel Kahn Gillmor
<dkg at> wrote:
> On 01/19/2014 09:55 AM, Daniele Ricci wrote:
>> Ok, so I have to conclude it's implementation specific?
>> I'm using a custom user attribute to store something that can change
>> quite often (privacy lists for a chat user). What do you suggest?
> I don't know what a "privacy list for a chat user" is.  You should
> probably try to document what you are trying to achieve more clearly,
> and present it in a public forum where people can help you think through
> possible ways to achieve it.
> This thread started off by asking about user IDs or attributes, which
> seems to assume that this is the only way to provide the information
> you're looking for.  But an OpenPGP notation (stored within the
> self-signature) could also provide that information directly.
> User IDs and User Attributes are for information that you need or want
> third parties to confirm and certify.  Information in an OpenPGP
> notation does *not* need to be confirmed or certified by third parties.
>  So if Alice wants to indicate something about her preferences about how
> to use chat, she can do so in a notation subpacket within her self-sig.
> does this make sense?
>         --dkg


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