[Openid-dcp] Discussing SIOPv2 issues (#26 and #29)

Pascal Knoth pascal at malach.it
Sun Nov 30 22:51:29 UTC 2025


Hi,

I submitted two issues on SIOPv2 specification repository:

- https://github.com/openid/SIOPv2/issues/29 telling about using siopv2 as
a key exchange to encrypt further messages

- https://github.com/openid/SIOPv2/issues/26 adding metadata policies along
with the id_token to restrict the signing key usage

I do not have production use cases for those but still think it may be
interesting to dig deeper in a security point of view, those additions
helping to create a secure front channel between the client and the
authorization server through siopv2 used as a back channel.

It would be great for me to discuss them during a meeting call where I
would explain maybe better the principles I tried to expose with these
additions. Do you think there can be a meeting call slot for me to present
this?

Thank you for reading me so far,
Pascal

-- 
Pascal Knoth - malachit
phone 0033 630739479
https://io.malach.it

With care from Paris, France
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