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Unobtrusive End-to-End Email Signatures
draft-gallagher-email-unobtrusive-signatures-02

Document Type Replaced Internet-Draft (candidate for mailmaint WG)
Expired & archived
Authors Andrew Gallagher , Daniel Kahn Gillmor , Kai Engert
Last updated 2025-11-07
Replaces draft-gallagher-email-invisible-signatures
Replaced by draft-ietf-mailmaint-unobtrusive-signatures
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status Informational
Formats
Additional resources Mailing list discussion
Stream WG state Call For Adoption By WG Issued
Associated WG milestone
Nov 2025
Adopt an email unubtrusive signatures draft
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-mailmaint-unobtrusive-signatures
Consensus boilerplate Unknown
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This Internet-Draft is no longer active.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:

Abstract

This document deals with end-to-end cryptographically signed email. It introduces a novel structure for signed email that is designed to avoid creating any disturbance in legacy email clients. This "unobtrusive" signature structure removes disincentives for signing email.

Authors

Andrew Gallagher
Daniel Kahn Gillmor
Kai Engert

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