Subject: [Privacy-pass] VOPRF with public metadata

From: Subodh Iyengar <[email-masked]>
Date: Tue, 23 Feb 2021 20:07:28 +0000

We put together an initial draft describing how to bind public metadata to VOPRF used by privacy pass https://tools.ietf.org/html/draft-iyengar-cfrg-voprfmetadata-00 by binding the metadata to the keys used by the VOPRF.
This is based on the scheme described in https://research.fb.com/privatestats.

I've sent a mail to CFRG requesting some time. Happy to discuss this further if anyone has questions / feedback.

Subodh