Re: [secdir] Secdir review of draft-ietf-ecrit-additional-data
Randall Gellens <randy@qti.qualcomm.com> Wed, 16 September 2015 19:22 UTC
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Date: Wed, 16 Sep 2015 12:22:42 -0700
To: Brian Rosen <br@brianrosen.net>, Randall Gellens <randy@qti.qualcomm.com>
From: Randall Gellens <randy@qti.qualcomm.com>
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Cc: secdir@ietf.org, draft-ietf-ecrit-additional-data@tools.ietf.org
Subject: Re: [secdir] Secdir review of draft-ietf-ecrit-additional-data
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At 2:32 PM -0400 9/16/15, Brian Rosen wrote: > TLS MUST be version 1.2 or later. It is RECOMMENDED to use only > cipher suites that offer Perfect Forward Secrecy (PFS), avoid > Cipher Block Chaining (CBC) and follow the recommendations in BCP195. Do we need to give examples of such suites? > >> On Sep 16, 2015, at 12:14 PM, Randall Gellens >> <randy@qti.qualcomm.com> wrote: >> >> At 7:38 AM +0000 9/16/15, stephen.farrell@cs.tcd.ie wrote: >> >>> On Wed Sep 16 04:09:03 2015 GMT+0100, Magnus Nyström wrote: >>>> Yes, at least mandating TLS 1.2 or higher and recommending as per above >>>> seems reasonable. >>>> The references for the GCM suites would be RFC 5288 and RFC 5289. >>> >>> BCP195 has recent recommendations for most >>> TLS options. I'd say it'd be best to use >>> those or if not figure out why they're not >>> correct for this context. >> >> Just to be clear: are you suggesting that we >> replace text suggested by Magnus: >> >> TLS MUST be version 1.2 or later. It is RECOMMENDED to use only >> cypher suites that offer Perfect Forward Secrecy (PFS) and avoid >> Cipher Block Chaining (CBC), for example, >> TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, >> TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, >> TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, >> TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, >> TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, >> TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 [RFC5288] [RFC5289]. >> >> With this: >> >> TLS MUST be version 1.2 or later. It is RECOMMENDED follow >> [BCP195]. >> >> >> Note that BCP 195 does not address CBC (but >> does discuss PFS). I just want to be clear >> before making the change, so please confirm >> that this works. >> >> -- >> Randall Gellens >> Opinions are personal; facts are suspect; I speak for myself only >> -------------- Randomly selected tag: --------------- >> If the odds are a million to one against something occurring, chances >> are 50-50 it will. -- Randall Gellens Opinions are personal; facts are suspect; I speak for myself only -------------- Randomly selected tag: --------------- It takes a wonderful brain and exquisite senses to produce a few stupid ideas. --Santayana
- [secdir] Secdir review of draft-ietf-ecrit-additi… Magnus Nyström
- [secdir] Secdir review of draft-ietf-mpls-tp-oam-… Tina TSOU
- Re: [secdir] Secdir review of draft-ietf-mpls-tp-… Venkatesan Mahalingam
- Re: [secdir] Secdir review of draft-ietf-mpls-tp-… Venkatesan Mahalingam
- Re: [secdir] Secdir review of draft-ietf-mpls-tp-… Tina TSOU
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Magnus Nyström
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Magnus Nyström
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… stephen.farrell
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Hannes Tschofenig
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Magnus Nyström
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Magnus Nyström
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Magnus Nyström
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Brian Rosen
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Randall Gellens
- Re: [secdir] Secdir review of draft-ietf-ecrit-ad… Brian Rosen