Hi. I’ve posted a new version of the ChaCha20-Poly1305 draft. I have removed the stand-alone version of both algorithms, leaving only the combined mode. Reasoning: - The authenticator is not really needed, as we have HMAC-SHA1, HMAC-SHA2-*, AES-XCBC, GHASH. So we’re not short on choices for an algorithm to complement AES-CBC. - Stand-alone ChaCha is fast, but would require an authenticator anyway, and the mailing list did not show enthusiasm for ChaCha20 + HMAC-SHA1 - The working group (everyone who commented except Yaron) wanted to only have the AEAD. - This makes the document only 7 pages long, with only three pages containing the actual protocol.
Comments are, of course, welcome, and I’d like to repeat my questions from the London meeting: - Should this be a WG item. - Should we apply for early identifier assignment - Should this be extended for IKE (current draft covers only ESP) Yoav Begin forwarded message: > From: [email protected] > Subject: New Version Notification for > draft-nir-ipsecme-chacha20-poly1305-02.txt > Date: March 31, 2014 at 9:44:43 AM GMT+3 > To: Yoav Nir <[email protected]>, "Yoav Nir" <[email protected]> > > > A new version of I-D, draft-nir-ipsecme-chacha20-poly1305-02.txt > has been successfully submitted by Yoav Nir and posted to the > IETF repository. > > Name: draft-nir-ipsecme-chacha20-poly1305 > Revision: 02 > Title: ChaCha20 and Poly1305 and their use in IPsec > Document date: 2014-03-31 > Group: Individual Submission > Pages: 7 > URL: > http://www.ietf.org/internet-drafts/draft-nir-ipsecme-chacha20-poly1305-02.txt > Status: > https://datatracker.ietf.org/doc/draft-nir-ipsecme-chacha20-poly1305/ > Htmlized: > http://tools.ietf.org/html/draft-nir-ipsecme-chacha20-poly1305-02 > Diff: > http://www.ietf.org/rfcdiff?url2=draft-nir-ipsecme-chacha20-poly1305-02 > > Abstract: > This document describes the use of the ChaCha20 stream cipher along > with the Poly1305 authenticator, combined into an AEAD algorithm for > IPsec. > > > > > Please note that it may take a couple of minutes from the time of submission > until the htmlized version and diff are available at tools.ietf.org. > > The IETF Secretariat >
_______________________________________________ IPsec mailing list [email protected] https://www.ietf.org/mailman/listinfo/ipsec
