Internationalized Email Addresses in X.509 Certificates
RFC 9598, “Internationalized Email Addresses in X.509 Certificates”, is a Proposed Standard document published in May 2024 by A. Melnikov, W. Chuang, C. Bonnell. It updates RFC 5280. It obsoletes RFC 8398. The canonical text is published by the RFC Editor.
Abstract
This document defines a new name form for inclusion in the otherName field of an X.509 Subject Alternative Name and Issuer Alternative Name extension that allows a certificate subject to be associated with an internationalized email address.
This document updates RFC 5280 and obsoletes RFC 8398.
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.
The canonical text of RFC 9598 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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