Hi Malla, 

 

Just to add one more thing: 

If you just want to "sign" for the sake of integrity protection, you really
do not need to do it as all the algs in JWE are integrity protected. 

 

-- 

Nat Sakimura < <mailto:n-sakim...@nri.co.jp> n-sakim...@nri.co.jp>

Nomura Research Institute, Ltd. 

 

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From: OAuth [mailto:oauth-boun...@ietf.org] On Behalf Of John Bradley
Sent: Friday, July 17, 2015 7:45 AM
To: Malla Simhachalam <mallasimhacha...@gmail.com>
Cc: oauth@ietf.org
Subject: Re: [OAUTH-WG] Nesting Signatures and Encryption JWT Tokens

 

https://tools.ietf.org/html/rfc7519#section-11.2

 

It is in the JWT spec.   You can do it both ways however you really need a
good reason not to sign then encrypt, and then after you have a good reason
you should still sign then encrypt because you probably have not considered
everything,

 

There are probably some edge cases that are exceptions to the rule, but they
are rare.

 

John B.

 

 

On Jul 16, 2015, at 11:33 PM, Malla Simhachalam <mallasimhacha...@gmail.com
<mailto:mallasimhacha...@gmail.com> > wrote:

 

Hi,

I am looking at the spec
https://datatracker.ietf.org/doc/rfc7520/?include_text=1 for combining JWS
and JWE use case, I could not find it obvious that a JSON document should be
signed first and then encrypt or other way around.Are there any
recommendations one over the other?

Thanks for help.

Malla

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