RFC 9850 on The SSLKEYLOGFILE Format for TLS
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Subject: RFC 9850 on The SSLKEYLOGFILE Format for TLS
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A new Request for Comments is now available in online RFC libraries.
RFC 9850
Title: The SSLKEYLOGFILE Format for TLS
Author: M. Thomson,
Y. Rosomakho,
H. Tschofenig
Status: Informational
Stream: IETF
Date: July 2026
Mailbox: mt@lowentropy.net,
yrosomakho@zscaler.com,
Hannes.Tschofenig@gmx.net
Pages: 12
I-D Tag: draft-ietf-tls-keylogfile-05
URL: https://www.rfc-editor.org/info/rfc9850
DOI: 10.17487/RFC9850
This document describes a format that supports logging information about the secrets used in a TLS connection. Recording secrets to a file in SSLKEYLOGFILE format allows diagnostic and logging tools that use this file to decrypt messages exchanged by TLS endpoints. This format is intended for use in systems where TLS only protects test data.
This document is a product of the Transport Layer Security Working Group of the IETF.
INFORMATIONAL: This memo provides information for the Internet community.
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- RFC 9850 on The SSLKEYLOGFILE Format for TLS rfc-editor