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Presentation

Signature Schemes with Efficient Protocols for Privacy-Preserving Identity

December 18, 2024

Presenters

Anna Lysyanskaya - Brown University

Description

Abstract. On both sides of the Atlantic, governments are working on creating digital identity apps that citizens can use in order to prove their identity or identity attributes.  In a privacy-preserving approach to such apps, a credential would be a government's (or other authority's) signature on a person's identity attributes.  In order to demonstrate that the user has a credential, the user's identity app would have to conduct a zero-knowledge proof of knowledge of such a signature.  Thus, signature schemes with efficient protocols are the required building block for privacy-preserving authentication.  In this talk we will go over the state of the art of such signature schemes.

Suggested readings: Cryptographers' Feedback on the EU Digital Identity’s ARF (2024-Jun-19); ACLU Digital ID State Legislative Recommendations (2024-Oct-10)

 

Presented at

Crypto Reading Club talk on 2024-Dec-18

Parent Project

See: Crypto Reading Club

Related Topics

Security and Privacy: cryptography

Created December 11, 2024