Please help reduce SAML 1 usage in the UK federation (was: SAML1.1 attribute release on Shib 3)

[Alex Stuart]

Hi Folks,

I'd just like to outline what the UK federation been doing to deal with its chronic SAML 1 usage, and I have a request for assistance to Shibboleth IdP operators.

Some history: By the end of 2013, all entities registered in the UK federation had a directly embedded key, enabling IdPs to encrypt SAML 2 assertions to SPs, although we had approximately 250 registered IdPs and 100 SPs that did not support SAML 2. Since then, we've been slowly chipping away at the SAML 1-only entities. In 2016, we made an effort to obtain SAML 2 metadata for all entities and we are now in the position that less than 2% of registered entities (22 SPs and 14 IdPs) do not support SAML 2 in metadata.

Even so, we know that SAML 1 is still being used by SPs which appear to support SAML 2: because SPs use the WAYF protocol with our Central Discovery Service; from discussion here; and because we have many calls to the service desk about SAML 1 Attribute Queries.

I've asked some IdP operators if they can provide anonymised data on SPs that are using SAML 1. I intend to collate the results, draw up a prioritised list, and work with the SP operators to reduce SAML 1 usage.

If you're running a Shibboleth IdP in the UK federation and wish to help us, please let me know directly or through the UK federation service desk (service at ukfederation.org.uk) which SPs are using SAML 1 with your IdP. Even better, by providing frequencies of SAML 1 and SAML 2 usage, we can determine whether there are conditions that trigger SAML 1 in a predominantly SAML 2-using SP. The output from a command like these would be super (it should output the SP entityID, the profiles used, and the number of each): 

cat idp-audit.log | cut -d\| -f4,5 | sort | uniq -c

cat idp-audit-2017-01*.log | cut -d\| -f4,5 | sort | uniq -c

Any advice appreciated.

Thanks,
Alex


> On 15 Feb 2017, at 16:57, Todd, James <J.Todd at napier.ac.uk> wrote:
> 
> You'd be surprised, seems to be quite a few in the UK Federation that I've had to deal with in the last couple of months.
> 
> 
> -----Original Message-----
> From: users [mailto:users-bounces at shibboleth.net] On Behalf Of Cantor, Scott
> Sent: 15 February 2017 16:41
> To: Shib Users <users at shibboleth.net>
> Subject: Re: SAML1.1 attribute release on Shib 3
> 
> On 2/15/17, 11:34 AM, "users on behalf of Morris, Andi" <users-bounces at shibboleth.net on behalf of amorris at cardiffmet.ac.uk> wrote:
> 
>> We configured the backchannel as per the Jetty config page on the Shib
>> wiki, so I would hope it is correct. I'll definitely look further at
>> that, as well as the metadata. We just used the default metadata created during the install (this is just a dev server).
> 
> Is there really that much SAML 1 left you need to support? Your time may be better spent chasing down as many as you can and figuring out why they're using a 15 year old standard 12 years after it was replaced.
> 
> I have basically two left myself: National Institutes of Health and OhioLink. Low enough volume that I can simply push the attributes and move on.
> 
> -- Scott
> 
> 
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—
Alex Stuart
UK federation support team
alex.stuart at jisc.ac.uk



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