Re: [AVTCORE] Kathleen Moriarty's No Objection on draft-ietf-avtcore-aria-srtp-10: (with COMMENT)
Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com> Thu, 03 August 2017 02:50 UTC
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From: Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com>
Date: Wed, 02 Aug 2017 22:50:02 -0400
Message-ID: <CAHbuEH4+R8KguTtLdoGnGdom1YB6Cp0XD5nLTm-YUMHaLsXxuw@mail.gmail.com>
To: Ben Campbell <ben@nostrum.com>
Cc: The IESG <iesg@ietf.org>, avtcore-chairs@ietf.org, Roni Even <roni.even@huawei.com>, draft-ietf-avtcore-aria-srtp@ietf.org, avt@ietf.org
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Subject: Re: [AVTCORE] Kathleen Moriarty's No Objection on draft-ietf-avtcore-aria-srtp-10: (with COMMENT)
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Hi Ben, Thanks for the quick response, inline. On Wed, Aug 2, 2017 at 10:36 PM, Ben Campbell <ben@nostrum.com> wrote: > > > >> On Aug 2, 2017, at 8:50 PM, Kathleen Moriarty <kathleen.moriarty.ietf@gmail.com> wrote: >> ---------------------------------------------------------------------- >> COMMENT: >> ---------------------------------------------------------------------- >> >> Although this is not a discuss, I think updated text would be very helpful on >> the following two issues. >> >> I agree with the SecDir reviewer that there should be more text around the >> short tag length in the security considerations section. I don't see a >> response to that post though. >> > > Hi Kathleen, > > I think you are referring to Ben Laurie’s SecDir review of 06, rather than his later review of 09. Is that correct? Version 9 removed the GCM_8 modes. Or were you referring to something else? I am referring to Ben's review of -06, where he had the following text: Thirdly, I am not familiar enough with SRTP to understand why short authentication tags are needed, but in general its a bad idea, so I feel the Security Considerations should explain more fully than "Ciphersuites with short tag length may be considered for specific application environments stated in 7.5 of [RFC3711], but the risk of weak authentication described in Section 9.5.1 of [RFC3711] should be taken into account." I don't see an update to this text to address his question - providing additional information as to what should be "taken into account". > >> For SHA-1, a reference to RFC6194 for the security considerations for >> SHA-1message digest algorithms would be helpful. Thank you! > > Thanks, that’s helpful. I agree the security considerations needs to say something about the use of SHA1 Great, thanks! > > Ben. -- Best regards, Kathleen
- [AVTCORE] Kathleen Moriarty's No Objection on dra… Kathleen Moriarty
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Kathleen Moriarty
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Kathleen Moriarty
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Kathleen Moriarty
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Kathleen Moriarty
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Ben Campbell
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Woo-Hwan Kim
- Re: [AVTCORE] Kathleen Moriarty's No Objection on… Kathleen Moriarty