Re: New issue: Header type for JWT format values

On 22/07/25 06:28, Atul Tulshibagwale wrote:
> Hello,
> We are currently working on a draft for Transaction Tokens <https:// 
> datatracker.ietf.org/doc/draft-ietf-oauth-transaction-tokens/>, which 
> envisions a new HTTP Request Header called "Txn-Token" <https:// 
> www.ietf.org/archive/id/draft-ietf-oauth-transaction- 
> tokens-05.html#name-txn-token-http-header>. The header value is expected 
> to be a JWT.


Taking a brief looks at the document ...

 > 2.1.  What are Transaction Tokens?
 >
 >   Txn-Tokens are short-lived, signed JWTs [RFC7519] that assert the
 >   identity of a user or a workload and assert an authorization context.


So, if I am reading that correctly these are a cross between login 
credentials and a session ID.


I am wondering why these credentials are using a custom header instead 
of being sent as part of HTTP Authentication (request) and 
Authentication-Info (response) headers.

There is a lot of HTTP security behaviour that can be leveraged just by 
using the Authn headers instead of re-inventing the wheel.


Cheers
Amos

Received on Tuesday, 22 July 2025 15:20:33 UTC