Last Call: <draft-ietf-tls-sni-encryption-05.txt> (Issues and Requirements for SNI Encryption in TLS) to Informational RFC
The IESG <iesg-secretary@ietf.org> Mon, 19 August 2019 13:59 UTC
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From: The IESG <iesg-secretary@ietf.org>
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Subject: Last Call: <draft-ietf-tls-sni-encryption-05.txt> (Issues and Requirements for SNI Encryption in TLS) to Informational RFC
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CC: draft-ietf-tls-sni-encryption@ietf.org, tls-chairs@ietf.org, Sean Turner <sean@sn3rd.com>, Joseph Salowey <joe@salowey.net>, kaduk@mit.edu, joe@salowey.net, tls@ietf.org
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Date: Mon, 19 Aug 2019 06:59:04 -0700
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The IESG has received a request from the Transport Layer Security WG (tls) to consider the following document: - 'Issues and Requirements for SNI Encryption in TLS' <draft-ietf-tls-sni-encryption-05.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2019-09-02. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This draft describes the general problem of encrypting the Server Name Identification (SNI) TLS parameter. The proposed solutions hide a Hidden Service behind a fronting service, only disclosing the SNI of the fronting service to external observers. The draft lists known attacks against SNI encryption, discusses the current "co-tenancy fronting" solution, and presents requirements for future TLS layer solutions. In practice, it may well be that no solution can meet every requirement, and that practical solutions will have to make some compromises. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-tls-sni-encryption/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-tls-sni-encryption/ballot/ No IPR declarations have been submitted directly on this I-D.