[ubuntu-uk] Invalid open-id transaction

Bruno Girin brunogirin at gmail.com
Sat Jul 6 13:21:36 UTC 2013

Single sign-on is the ability to use a single set of credentials to access
multiple services. This works by having a single Identify Provider that
hosts your credentials and a number of Service Providers that exchange
encrypted messages with the Identity Provider in order to validate your
identity when you connect. OpenID is the underlying protocol that
implements this exchange of messages in a standard way so that any OpenID
Service Provider can accepts credentials from any OpenID Identity Provider.
In the context of Ubuntu, U1 is an OpenID Service Provider (and presumably
Identity Provider too) so can accept OpenID authentication messages to
validate your identity.

So, assuming my explanation above was clearer than mud and with it in mind,
what probably happens is that the browser attempts to authenticate with the
service using OpenID. For some reason, the service has an issue with the
way the OpenID request is sent or with its content. Entering your password
and everything gives the service enough info to identify you and allow you
to connect.

Now, the error message could be a lot more explicit than it is and the
system should have a sensible fallback like sending you to the
authentication page.


On 6 July 2013 09:13, alan c <aeclist at candt.waitrose.com> wrote:

> On 05/07/13 21:04, Muñiz Piniella, Andrés wrote:
>> Hello,
>> I just got this message ' Invalid open-id transaction' when clicking on
>> the
>> login of the ubuntuone website. Using firefox on android.
>> I do not get this with the ubuntu one app.
>> Does anyone have this problem?
> I am just using U1 from a samsung android tablet this morning, first time,
> in a little used (so far) U1 account. Got this message too. I decided that
> it meant I had not yet created an open id account, so I put a password in
> etc etc and  that seemed to do the trick. I think that having a U1 sign on
> is not quite the same as also having a open id (also known as single sign
> on, I think.....)
> Can anyone help to confirm this please?
> --
> alan cocks
> --
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/**mailman/listinfo/ubuntu-uk<https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk>
> https://wiki.ubuntu.com/**UKTeam/ <https://wiki.ubuntu.com/UKTeam/>

Visit my weblog: http://brunogirin.blogspot.com
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