Re: [secdir] Secdir review of draft-ietf-ecrit-additional-data
Brian Rosen <br@brianrosen.net> Wed, 16 September 2015 19:39 UTC
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From: Brian Rosen <br@brianrosen.net>
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Date: Wed, 16 Sep 2015 15:38:55 -0400
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References: <CADajj4bzDNqCzaJSjviVZm1nk8CrbUopzj0PrNNOUcK9SNG1ZA@mail.gmail.com> <p06240610d21e68de6c17@99.111.97.136> <CADajj4a+uJi3h1qjQ9xgGup_2teQc9hgfRyWDwwKvQS5aUJDOg@mail.gmail.com> <p06240612d21e7dc050f6@99.111.97.136> <CADajj4ZGx-8vFrZXd_CQcuG3GJWYDJoFTBQ+do-duicgadkEYw@mail.gmail.com> <2do7j0.nurejh.2vaeqo-qmf@mercury.scss.tcd.ie> <p06240616d21f443ed6d5@[99.111.97.136]> <4EE7311A-C4AA-4153-8B19-2C3175F03D89@brianrosen.net> <p0624061bd21f71f28d45@[99.111.97.136]>
To: 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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Don’t think so. Brian > On Sep 16, 2015, at 3:22 PM, Randall Gellens <randy@qti.qualcomm.com> wrote: > > 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