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Tls Status Pages

Transport Layer Security (Active WG)
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Transport Layer Security (tls)


 Current Status: Active

     Christopher A. Wood 
     Joseph A. Salowey 
     Sean Turner 

 Security Area Directors:
     Roman Danyliw 
     Benjamin Kaduk 

 Security Area Advisor:
     Benjamin Kaduk 

 Mailing Lists:
     General Discussion: tls@ietf.org
     To Subscribe:       https://www.ietf.org/mailman/listinfo/tls
     Archive:            https://mailarchive.ietf.org/arch/browse/tls/

Description of Working Group:

  The TLS (Transport Layer Security) working group was established in 1996 to standardize a 'transport layer' security protocol. The basis for the work was SSL (Secure Socket Layer) v3.0 [RFC6101]. The TLS working group has completed a series of specifications that describe the TLS protocol v1.0 [RFC2246], v1.1 [RFC4346], v1.2 [RFC5346], and v1.3 [RFC8446], and DTLS (Datagram TLS) v1.0 [RFC4347], v1.2 [RFC6347], and v1.3 [draft-ietf-tls-dtls13], as well as extensions to the protocols and ciphersuites.
  The working group aims to achieve three goals. First, improve the applicability and suitability of the TLS family of protocols for use in emerging protocols and use cases. This includes extensions or changes that help protocols better use TLS as an authenticated key exchange protocol, or extensions that help protocols better leverage TLS security properties, such as Exported Authenticators. Extensions that focus specifically on protocol extensibility are also in scope. This goal also includes protocol changes that reduce TLS resource consumption without affecting security. Extensions that help reduce TLS handshake size meet this criterion. 
  The second working group goal is to improve security, privacy, and deployability. This includes, for example, Delegated Credentials and Encrypted SNI. Security and privacy goals will place emphasis on the following:
  - Encrypt the ClientHello SNI (Server Name Indication) and other application-sensitive extensions, such as ALPN (Application-Layer Protocol Negotiation).
  - Identify and mitigate other (long-term) user tracking or fingerprinting vectors enabled by TLS deployments and implementations.
  The third goal is to maintain current and previous version of the (D)TLS protocol as well as to specify general best practices for use of (D)TLS, extensions to (D)TLS, and cipher suites. This includes recommendations as to when a particular version should be deprecated. Changes or additions to older versions of (D)TLS whether via extensions or ciphersuites are discouraged and require significant justification to be taken on as work items.
  The working group will also place a priority in minimizing gratuitous changes to (D)TLS.

Goals and Milestones:
  Jul 2020 - Submit "Deprecating MD5 and SHA-1 signature hashes in TLS 1.2" to the IESG
  Sep 2020 - Submit "Delegated Credentials for TLS" to the IESG
  Nov 2020 - Submit "TLS Ticket Requests" to the IESG
  Nov 2020 - Submit "A Flags Extension for TLS 1.3" to the IESG
  Jan 2021 - Submit "Importing External PSKs for TLS" to the IESG
  Mar 2021 - Submit "Encrypted Server Name Indication for TLS 1.3" to the IESG
  Mar 2021 - Submit "Batch Signing for TLS" to the IESG
  Jul 2021 - Submit "Semi-Static Diffie-Hellman Key Establishment for TLS 1.3" to the IESG
  Jul 2021 - Submit "Compact TLS 1.3" to the IESG
  Nov 2021 - Submit "Hybrid key exchange in TLS 1.3" to the IESG

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