RFC 8463 · PROPOSED STANDARD · 2018
MON · 14 SEP 2026
A New Cryptographic Signature Method for DomainKeys Identified Mail
Overview
RFC 8463, “A New Cryptographic Signature Method for DomainKeys Identified Mail”, is a Proposed Standard document published in September 2018 by J. Levine. It updates RFC 6376. The canonical text is published by the RFC Editor.
Abstract
This document adds a new signing algorithm, Ed25519-SHA256, to "DomainKeys Identified Mail (DKIM) Signatures" (RFC 6376). DKIM verifiers are required to implement this algorithm.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 8463 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2018
- RFC 8462 Report from the IAB Workshop on Managing Radio Networks in an Encrypted World
- RFC 8464 A URN Namespace for Device Identity and Mobile Equipment Identity
- RFC 8461 SMTP MTA Strict Transport Security
- RFC 8465 Using the Mobile Equipment Identity URN as an Instance ID
- RFC 8460 SMTP TLS Reporting
- RFC 8466 A YANG Data Model for Layer 2 Virtual Private Network Service Delivery
- RFC 8459 Hierarchical Service Function Chaining
- RFC 8467 Padding Policies for Extension Mechanisms for DNS (EDNS )