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authnopuz commented on AI Agent Authentication and Authorization IETF RFC Draft   datatracker.ietf.org/doc/... · Posted by u/mooreds
agent5ravi · 8 days ago
Worth noting that this RFC is squarely in the M2M API auth space — it assumes the agent is calling an API that can be updated to speak OAuth/OIDC. That's the enterprise-to-enterprise layer, and it makes sense.

The gap it doesn't touch: consumer services (email newsletters, SaaS signups, SMS verification flows) will never adopt IETF agent auth standards. They expect a real human email and phone. The verification SMS goes to a phone number. The confirmation email goes to an inbox. A human clicks it.

That's a fundamentally different problem — not 'how does an agent authenticate to an API' but 'how does an agent prove it exists to a service that was built assuming a human is on the other end.' The RFC doesn't help there. You need a different layer.

authnopuz · 6 days ago
One of the Co-Authors here

There are two elements here. Agent can start a full authorization request with AS through authorization code grant flow, even requiring a step-up or some rich authorization details, therefore whatever OTP by SMS or Magic link is an AS - Subject/Client "problem".

For Agent that cannot start a full authorization request (too costly, to complex, subject directly unreachable at the moment), we have a mention to OpenID Connect CIBA into it. With it, the Agent will start a back channel authorization request with the AS and the AS will use a method of authentication / confirmation with the subject in front channel, for example sending a SMS or sending a link to click. Again the resolution will remain an AS - Subject/Client "problem".

authnopuz commented on Show HN: Browser-based interactive 3D Three-Body problem simulator   trisolarchaos.com/?pr=O_8... · Posted by u/jgchaos
authnopuz · 4 months ago
Nightfall by Asimov was a 7 bodies problem - https://en.wikipedia.org/wiki/Nightfall_(Asimov_novelette_an...
authnopuz · 4 months ago
And to be fair, Liu Cixin's book is a 4 bodies problem :)
authnopuz commented on Show HN: Browser-based interactive 3D Three-Body problem simulator   trisolarchaos.com/?pr=O_8... · Posted by u/jgchaos
notaurus · 4 months ago
I think the URL is telling
authnopuz · 4 months ago
Nightfall by Asimov was a 7 bodies problem - https://en.wikipedia.org/wiki/Nightfall_(Asimov_novelette_an...
authnopuz commented on Guy running a Google rival from his laundry room   fastcompany.com/91396271/... · Posted by u/coloneltcb
cheema33 · 6 months ago
I tried the search site at https://searcha.page/ by searching for something random and got the following message:

"An error has occurred building the search results."

authnopuz · 6 months ago
hug of death? I fear the temperature will get very high in his laundry room
authnopuz commented on The Agentic Systems Series   gerred.github.io/building... · Posted by u/ghuntley
authnopuz · 9 months ago
The authentication section is very bizarre, the Agent should go through an OAuth(2?) process to finally access server through an API Key? That sounds more painful than bringing a better state of security...
authnopuz commented on WonderHuman: 3D avatars from single-view video   arxiv.org/abs/2502.01045... · Posted by u/jinqueeny
pitzips · a year ago
Reminds me of that scene [1] from Enemy of the State where they "Rotate us 75 degrees around the vertical" in one of those "enhance, enhance" tropes.

[1] https://youtu.be/3EwZQddc3kY?t=7

authnopuz · a year ago
Man, we all have been bluffed by this scene
authnopuz commented on OWASP Non-Human Identities Top 10   owasp.org/www-project-non... · Posted by u/raskelll
authnopuz · a year ago
Another good source of NHI definitions, concepts, and threats https://nhimg.org/the-ultimate-guide-to-non-human-identities
authnopuz commented on Dear OAuth Providers   pilcrowonpaper.com/blog/d... · Posted by u/franciscop
authnopuz · a year ago
If you consider the newest rfc9068: https://datatracker.ietf.org/doc/html/rfc9068 for JWT profiled Access Token, the list of discrepancies is even longer.

u/authnopuz

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