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From Sergey Beryozkin <>
Subject Re: Jose4J and JWT
Date Tue, 20 May 2014 11:59:27 GMT
This is how the test code looks at the moment:

Jws related code needs a bit of utility support, Jwe looks reasonable 
for now...


On 20/05/14 12:51, Sergey Beryozkin wrote:
> I've done an initial commit, the  code is raw, I committed to avoid
> losing it :-) and to make it in time for a 3.0.1 branching.
> As I said I've thought a lot about what level of support to offer.
> It probably does not make sense to compete with Jose.4.J which offers a
> comprehensive enough Object Oriented JOSE suport. Apache Oltu also offer
> the support and RestEasy too (Bill and his team always do it first :-)).
> In the end I thought of offering something simple enough such that
> people can do the signatures and encryptions whichever way they want but
> also offering some utility code for the main-stream algorithms OOB.
> If people want to use Jose4J or Apache Oltu with CXF then we will simply
> document that it is a matter of registering custom OAuth2 handlers.
> I did not go for a builder style, I wanted JWT claims & headers
> read/written with providers like Jackson or Jettison etc if preferred.
> More refactoring will be going in, plus support for JAX-RS providers
> supporting JSON encryption & validation which goes beyond a pure OAuth2
> related support.
> Eventually I will document it too :-)
> Cheers, Sergey
> On 02/05/14 13:23, Sergey Beryozkin wrote:
>> Hi
>> I've been experimenting for the last couple of months, whenever I get a
>> chance, with having Json Web Token (JWT) supported as part of CXF OAuth2
>> flows.
>> The immediate goal is to support JWT Bearer assertions as grants or
>> authentication credentials at AccessTokenService level OOB (see more
>> below about it) with the longer term goal of plugging in into the
>> OpenId-Connect flows.
>> I've played with Apache Oltu, and could not resist writing something of
>> my own of course :-) and checked few other resources. I have to admit
>> right now that jose4j [1] appears to be the most complete framework
>> already available, as far as the support for singing and encrypting JSON
>> payloads is concerned, not in Maven Central just yet and restricted to
>> Java 7 but it is worth watching.
>> Note, users can easily plugin custom AccessTokenGrant handlers into CXF
>> AccessTokenService and use jose4j right now. The question is what level
>> of support CXF can offer OOB with respect to supporting JWT Bearer
>> assertion (grants) and also, how can CXF can adapt a given plain JWT
>> representation into CXF ServerAccessToken representations should a user
>> wish to use JWT representations as access tokens which is an orthogonal
>> task.
>> As such jose4j won't offer a solution on its own, it has a rich API
>> specifically around encrypting and signing.
>> I'm going to keep experimenting for a while. I will probably come up
>> with some kind of JWT API that will let users plugin or use Jose4j, not
>> sure right now yet...
>> I should say that IMHO the JOSE effort can still be considered as a very
>> new approach, it is being utilized already around but a number of good
>> alternative solutions exist right now, if we talk about SSO + OAuth2, it
>> can be SAML Assertion grants.
>> That said, ignoring JOSE is not an option given that it is obviously
>> going to affect OAuth2 a lot...
>> Sergey
>> [1]

Sergey Beryozkin

Talend Community Coders


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