Re: [TLS] Fwd: New Version Notification for draft-sheffer-tls-bcp-00.txt

Peter Gutmann <pgut001@cs.auckland.ac.nz> Mon, 09 September 2013 03:17 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: "code@funwithsoftware.org" <code@funwithsoftware.org>, "perpass@ietf.org" <perpass@ietf.org>, "tls@ietf.org" <tls@ietf.org>
Thread-Topic: [TLS] Fwd: New Version Notification for draft-sheffer-tls-bcp-00.txt
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Date: Mon, 9 Sep 2013 03:16:41 +0000
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Subject: Re: [TLS] Fwd: New Version Notification for draft-sheffer-tls-bcp-00.txt
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Patrick Pelletier <code@funwithsoftware.org> writes:

>It seems generally accepted that 1024-bit Diffie-Hellman is no longer secure,

Really?  DLP != factoring.

>How about something along the lines of "Diffie-Hellman parameters of at least
>2048 bits SHOULD be chosen"?

Why at least 2048 bits?  What's wrong with 1280, or 1536, which will be quite
a lot faster.

Peter.