Re: [web-nfc] Write-only Web NFC variant proposal

"NFC in PC" => doesn't exist. End of story.

On Thu, Jun 15, 2017 at 9:07 AM, Anders Rundgren <notifications@github.com>
wrote:

> Although the use case has been dismissed, I promised a more complete
> description for review.
>
> [image: nfc-qr-repl]
> <https://user-images.githubusercontent.com/8044211/27169160-fffc4ee0-51a8-11e7-973b-a4450beaa3aa.png>
>
> Assumption: *The Service, PC, and Phone are free from malware interfering
> with the devised scheme*.
>
> The security of this scheme is based on multiple factors:
>
>    - Public key cryptography exposes no static secrets to attackers
>    - One-time challenges limit attacks to the specfic session
>    - Session cookies, only known by the Service and the user's PC
>    (Browser), render intercepted NFC or authentication objects useless outside
>    of the user's PC
>    - Intercepting and rewriting RF data on-the-fly appears to be quite
>    difficult
>    - The Web Security context provided by the NFC solution in conjunction
>    with signing thwarts basic "phishing" attacks
>    - The user must perform an action in order to authorize a login
>
> The original (and possibly updated) document is available at:
> https://cyberphone.github.io/doc/research/nfc-based-qr-replacement.pdf
>
> —
> You are receiving this because you were mentioned.
> Reply to this email directly, view it on GitHub
> <https://github.com/w3c/web-nfc/issues/128#issuecomment-308647894>, or mute
> the thread
> <https://github.com/notifications/unsubscribe-auth/ADsdulYvSY1GYrvGxQ1o16eQaWNQPwWxks5sENgngaJpZM4Nvv7o>
> .
>


-- 
GitHub Notification of comment by FREDFLT
Please view or discuss this issue at https://github.com/w3c/web-nfc/issues/128#issuecomment-308838885 using your GitHub account

Received on Thursday, 15 June 2017 19:10:24 UTC