Re: Expectations for TLS session reuse
Kari Hurtta <hurtta-ietf@elmme-mailer.org> Thu, 22 December 2016 15:46 UTC
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To: Richard Bradbury <richard.bradbury@rd.bbc.co.uk>
Date: Thu, 22 Dec 2016 17:43:44 +0200
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From: Kari Hurtta <hurtta-ietf@elmme-mailer.org>
CC: HTTP working group mailing list <ietf-http-wg@w3.org>, Kari Hurtta <hurtta-ietf@elmme-mailer.org>, Martin Thomson <martin.thomson@gmail.com>, Mike Bishop <Michael.Bishop@microsoft.com>, Eric Rescorla <ekr@rtfm.com>, Lucas Pardue <Lucas.Pardue@bbc.co.uk>, Patrick McManus <mcmanus@ducksong.com>
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Subject: Re: Expectations for TLS session reuse
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> If I attempt to do establish a TLS session on a new connection > in parallel with an existing connection (as opposed to serially) > is that still called session resumption? Session resumption have special meaning. https://tools.ietf.org/html/rfc5246#section-7.4.1.2 | The ClientHello message includes a variable-length session | identifier. If not empty, the value identifies a session between the | same client and server whose security parameters the client wishes to | reuse. The session identifier MAY be from an earlier connection, | this connection, or from another currently active connection. The | second option is useful if the client only wishes to update the | random structures and derived values of a connection, and the third | option makes it possible to establish several independent secure | connections without repeating the full handshake protocol. These | independent connections may occur sequentially or simultaneously; a | SessionID becomes valid when the handshake negotiating it completes | with the exchange of Finished messages and persists until it is | removed due to aging or because a fatal error was encountered on a | connection associated with the session. The actual contents of the | SessionID are defined by the server. | | opaque SessionID<0..32>; | session_id | The ID of a session the client wishes to use for this connection. | This field is empty if no session_id is available, or if the | client wishes to generate new security parameters. | | cipher_suites | This is a list of the cryptographic options supported by the | client, with the client's first preference first. If the | session_id field is not empty (implying a session resumption | request), this vector MUST include at least the cipher_suite from | that session. Values are defined in Appendix A.5. / Kari Hurtta
- Expectations for TLS session reuse Lucas Pardue
- RE: Expectations for TLS session reuse Mike Bishop
- Re: Expectations for TLS session reuse Martin Thomson
- Re: Expectations for TLS session reuse Patrick McManus
- RE: Expectations for TLS session reuse Lucas Pardue
- RE: Expectations for TLS session reuse Mike Bishop
- Re: Expectations for TLS session reuse Eric Rescorla
- RE: Expectations for TLS session reuse Mike Bishop
- RE: Expectations for TLS session reuse Lucas Pardue
- Re: Expectations for TLS session reuse Richard Bradbury
- RE: Expectations for TLS session reuse Mike Bishop
- Re: Expectations for TLS session reuse Martin Thomson
- Re: Expectations for TLS session reuse Patrick McManus
- Re: Expectations for TLS session reuse Richard Bradbury
- Re: Expectations for TLS session reuse Patrick McManus
- Re: Expectations for TLS session reuse Kari Hurtta
- RE: Expectations for TLS session reuse Mike Bishop
- Re: Expectations for TLS session reuse Richard Bradbury
- Re: Expectations for TLS session reuse Martin Thomson