Re: [TLS] Safe ECC usage
Johannes Merkle <johannes.merkle@secunet.com> Tue, 01 October 2013 16:23 UTC
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Date: Tue, 01 Oct 2013 18:22:07 +0200
From: Johannes Merkle <johannes.merkle@secunet.com>
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Cc: "tls@ietf.org" <tls@ietf.org>, Kyle Hamilton <aerowolf@gmail.com>
Subject: Re: [TLS] Safe ECC usage
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>> Other than certificate size and the speed of making those calculations? >> Really, try "openssl speed rsa2048 ecdsap256" on any Linux or Mac machine. > > openssl 1.0.1c x86_64 tells me ecdsap256 is 10x faster than rsa2048 for > signing and 10x slower than rsa2048 for verifying. RSA is much faster for signing than for verifying, while for ECDSA the time for these operations are quite similar. So lets assume, ECDSA singing or verifying takes 1/10 s, then RSA signing takes 1 s and verifying 1/100 sec. Makes 0.2 s for ECDSA based handshake (one signing and one verifying operation) and 1.01 s for RSA. That is a huge difference. Johannes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yoav Nir
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Stephen Farrell
- [TLS] draft-sheffer-tls-bcp: DH recommendations Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael D'Errico
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Patrick Pelletier
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Xuelei Fan
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Martin Rex
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yoav Nir
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Martin Rex
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Blumenthal, Uri - 0558 - MITLL
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Blumenthal, Uri - 0558 - MITLL
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael Ströder
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Blumenthal, Uri - 0558 - MITLL
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… james hughes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… james hughes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Blumenthal, Uri - 0558 - MITLL
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael Ströder
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael Ströder
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… james hughes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Blumenthal, Uri - 0558 - MITLL
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yoav Nir
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Bill Frantz
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Ralph Holz
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Martin Rex
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Martin Rex
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Martin Rex
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… james hughes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael Ströder
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… james hughes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael Ströder
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael D'Errico
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yoav Nir
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Stephen Farrell
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Patrick Pelletier
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yoav Nir
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael D'Errico
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Ralph Holz
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… james hughes
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Ralph Holz
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Nikos Mavrogiannopoulos
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Patrick Pelletier
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Patrick Pelletier
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Patrick Pelletier
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yoav Nir
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Patrick Pelletier
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Martin Rex
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Yaron Sheffer
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Alex Elsayed
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Michael D'Errico
- Re: [TLS] draft-sheffer-tls-bcp: DH recommendatio… Peter Gutmann
- [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Kyle Hamilton
- Re: [TLS] Safe ECC usage Johannes Merkle
- Re: [TLS] Safe ECC usage Adam Langley
- Re: [TLS] Safe ECC usage Santosh Chokhani
- Re: [TLS] Safe ECC usage Martin Rex
- Re: [TLS] Safe ECC usage Kyle Hamilton
- Re: [TLS] Safe ECC usage Yoav Nir
- Re: [TLS] Safe ECC usage Martin Rex
- Re: [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Johannes Merkle
- Re: [TLS] Safe ECC usage Manuel Pégourié-Gonnard
- Re: [TLS] Safe ECC usage Yoav Nir
- Re: [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Johannes Merkle
- [TLS] (offline note) Re: Safe ECC usage Rene Struik
- Re: [TLS] Safe ECC usage D. J. Bernstein
- [TLS] (EC)DSA potential problems (ECC "brittlenes… Martin Rex
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Watson Ladd
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Johannes Merkle
- Re: [TLS] Safe ECC usage Nico Williams
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Nico Williams
- Re: [TLS] Safe ECC usage Michael StJohns
- Re: [TLS] Safe ECC usage Dan Brown
- Re: [TLS] Safe ECC usage Nico Williams
- Re: [TLS] Safe ECC usage Bill Frantz
- Re: [TLS] Safe ECC usage D. J. Bernstein
- Re: [TLS] Safe ECC usage Dan Brown
- [TLS] DH group negotiation extension [was: Re: dr… Daniel Kahn Gillmor
- Re: [TLS] DH group negotiation extension [was: Re… Dang, Quynh
- Re: [TLS] DH group negotiation extension [was: Re… Patrick Pelletier
- Re: [TLS] DH group negotiation extension [was: Re… Watson Ladd