PRIVACYPASS @ IETF 122

2025 March 20 (Thursday), 13:00-15:00 ICT

Marriot Marquis Bangkok Queen’s Park, Floor 3, Boromphimarm 4

Chairs: Joe Salowey (onsite), Ben Schwartz (remote)

AD: Paul Wouters

• Minutes
• Chat
• Meetecho
• Onsite Tool
• Audio Stream

Agenda

Administrivia (5 min)

Chairs

• Status Update for Batched Token Issuance Protocol
• Adoption call for Privacy Pass Token Expiration Extension
• Planned WGLC for Privacy Pass Issuance Protocols with Public Metadata and The PrivateToken HTTP Authentication Scheme Extensions Parameter

Privacy Pass (70 min)

This section contains 10 minutes of buffer for productive discussions.

Token Metadata (20 min)

Scott Hendrickson

• Privacy Pass Token Expiration Extension
• Privacy Pass Issuance Protocols with Public Metadata
• The PrivateToken HTTP Authentication Scheme Extensions Parameter

Attester Issuer Protocol (10 min)

Scott Hendrickson

• Presentation (5 min)
• Discussion (5 min)

Privacy Pass Reverse Flow (10 min)

Thibault Meunier

• Presentation (5 min)
• Discussion (5 min)

Including Privacy Pass Tokens in TLS Handshakes (10 min)

Tommy Pauly

• Presentation (5 min)
• Discussion (5 min)

Privacy Pass with Token Binding Extension (10 min)

Wei Guo

• Presentation (5 min)
• Discussion (5 min)

Anonymous Credentials (45 min)

Overview (30 min)

Steven Valdez, Michele Orrù

• Discussion of the Scope/Use Cases of Anonymous Credentials
• Discussion of Extensions beyond privacypass
• Pointers/Overview of Cryptographic Work in this space
• Open Discussion
• Next Steps

Anonymous Rate-Limited Credentials (15 min)

Chris Wood