From: Baptiste Jonglez <baptiste@bitsofnetworks.org>
To: wireguard@lists.zx2c4.com
Subject: Introduction of XChaCha20Poly1305 (Was: [ANNOUNCE] Snapshot `0.0.20161223` Available)
Date: Sun, 25 Dec 2016 23:42:25 +0100 [thread overview]
Message-ID: <20161225224225.GA5081@lud.home> (raw)
In-Reply-To: <ffffffffac503169@frisell.zx2c4.com>
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Hi,
On Fri, Dec 23, 2016 at 09:15:28PM +0100, Jason A. Donenfeld wrote:
> * cookies: use xchacha20poly1305 instead of chacha20poly1305
>
> This is a big change. To simplify the security analysis, improve speed, and
> simplify the code, we now use XChaChaPoly1305 with a random 24-byte nonce,
> instead of using a random 32-byte salt.
- Is this backwards compatible?
- Could you provide references describing XChaCha20Poly1305 and the
differences with ChaCha20Poly1305?
- What part of the protocol does this change? Is it just the initial key
exchange?
Thanks,
Baptiste
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next prev parent reply other threads:[~2016-12-25 22:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-23 20:15 [ANNOUNCE] Snapshot `0.0.20161223` Available Jason A. Donenfeld
2016-12-23 20:19 ` Dave Taht
2016-12-23 20:22 ` Jason A. Donenfeld
2016-12-25 22:42 ` Baptiste Jonglez [this message]
2016-12-25 22:55 ` Introduction of XChaCha20Poly1305 (Was: [ANNOUNCE] Snapshot `0.0.20161223` Available) Jason A. Donenfeld
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