Re: [TLS] Simplifying signature algorithm negotiation
Hanno Böck <hanno@hboeck.de> Sat, 16 January 2016 10:00 UTC
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Date: Sat, 16 Jan 2016 11:01:12 +0100
From: Hanno Böck <hanno@hboeck.de>
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Subject: Re: [TLS] Simplifying signature algorithm negotiation
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Hi, I generally like the idea of simplifying the different algorithm negotiation things, but: On Fri, 15 Jan 2016 20:45:34 +0000 David Benjamin <davidben@chromium.org> wrote: > [2] > 0x0000-0x06ff - Reserved range for TLS 1.2 compatibility values. Note > this is wire-compatible with TLS 1.2. > - 0x0101 - rsa_pkcs1_md5 > - 0x0201 - rsa_pkcs1_sha1 > - 0x0301 - rsa_pkcs1_sha224 > - 0x0401 - rsa_pkcs1_sha256 > - 0x0501 - rsa_pkcs1_sha334 > - 0x0601 - rsa_pkcs1_sha512 > - 0x{01-06}02 - dsa_md5, etc. Ignored in TLS 1.3. > - 0x{01-06}03 - ecdsa_md5, etc. Advertised for TLS 1.2 compatibility > but ignored in TLS 1.3. I think a couple of them (esp. everything with dsa and _md5) should get a diediedie rfc and never be seen again. > - rsapss_sha256 > - rsapss_sha384 > - rsapss_sha512 > - ecdsa_p256_sha256 > - ecdsa_p256_sha384 > - ecdsa_p256_sha512 > - ecdsa_p384_sha256 > - ecdsa_p384_sha384 > - ecdsa_p384_sha512 > - ecdsa_p521_sha256 > - ecdsa_p521_sha384 > - ecdsa_p521_sha512 > - eddsa_ed25519 > - eddsa_ed448 Do we really need that many? I think the "complexity zoo" of TLS is one of its current downsides and I really think we should go with fewer options in the future. Can we strip that down to - below 5 or something? (personal opinion: Strip down to 2, but this may be too radical for now.) -- Hanno Böck http://hboeck.de/ mail/jabber: hanno@hboeck.de GPG: BBB51E42
- [TLS] Simplifying signature algorithm negotiation David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Brian Smith
- Re: [TLS] Simplifying signature algorithm negotia… Dave Garrett
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Hanno Böck
- Re: [TLS] Simplifying signature algorithm negotia… Eric Rescorla
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Brian Smith
- Re: [TLS] Simplifying signature algorithm negotia… Ilari Liusvaara
- Re: [TLS] Simplifying signature algorithm negotia… Ilari Liusvaara
- Re: [TLS] Simplifying signature algorithm negotia… Nikos Mavrogiannopoulos
- Re: [TLS] Simplifying signature algorithm negotia… Hubert Kario
- Re: [TLS] Simplifying signature algorithm negotia… Hubert Kario
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Hubert Kario
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Ilari Liusvaara
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Kurt Roeckx
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Ilari Liusvaara
- Re: [TLS] Simplifying signature algorithm negotia… Eric Rescorla
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Eric Rescorla
- Re: [TLS] Simplifying signature algorithm negotia… David Benjamin
- Re: [TLS] Simplifying signature algorithm negotia… Eric Rescorla
- Re: [TLS] Simplifying signature algorithm negotia… Ilari Liusvaara
- Re: [TLS] Simplifying signature algorithm negotia… Eric Rescorla
- Re: [TLS] Simplifying signature algorithm negotia… Joseph Salowey
- Re: [TLS] Simplifying signature algorithm negotia… Eric Rescorla