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Re: [TLS] Renegotation redux

"Salz, Rich" <rsalz@akamai.com> Mon, 14 April 2014 14:52 UTC

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From: "Salz, Rich" <rsalz@akamai.com>
To: Watson Ladd <watsonbladd@gmail.com>, "tls@ietf.org" <tls@ietf.org>
Date: Mon, 14 Apr 2014 10:52:28 -0400
Thread-Topic: [TLS] Renegotation redux
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Subject: Re: [TLS] Renegotation redux
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> Are there any users of renegotiation beyond authentication with client side certificates?

Yes, although these days it's a pretty narrow window.  Under certain circumstances, a client can recognize that a server is "authorized" to do stronger crypto, and will renegotiate. Search for step-up or server-gated cryptography.  It's not really needed much any more, although we have at least one customer with embedded clients that wants it.

--  
Principal Security Engineer
Akamai Technology
Cambridge, MA

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