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Verifiable Distributed Aggregation Functions

Document Type Replaced Internet-Draft (cfrg RG)
Expired & archived
Authors Christopher Patton , Richard Barnes , Phillipp Schoppmann
Last updated 2022-04-25 (Latest revision 2022-03-04)
Replaced by draft-irtf-cfrg-vdaf
RFC stream Internet Research Task Force (IRTF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream IRTF state Replaced
Consensus boilerplate Unknown
Document shepherd (None)
IESG IESG state Replaced by draft-irtf-cfrg-vdaf
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document describes Verifiable Distributed Aggregation Functions (VDAFs), a family of multi-party protocols for computing aggregate statistics over user measurements. These protocols are designed to ensure that, as long as at least one aggregation server executes the protocol honestly, individual measurements are never seen by any server in the clear. At the same time, VDAFs allow the servers to detect if a malicious or misconfigured client submitted an input that would result in an incorrect aggregate result.


Christopher Patton
Richard Barnes
Phillipp Schoppmann

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)