Re: [MSEC] Review comments, was RE: GDOI support for IEC 62351
Paul Lambert <paul@marvell.com> Tue, 22 October 2013 03:55 UTC
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From: Paul Lambert <paul@marvell.com>
To: Brian Weis <bew@cisco.com>
Date: Mon, 21 Oct 2013 20:55:44 -0700
Thread-Topic: [MSEC] Review comments, was RE: GDOI support for IEC 62351
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Cc: "msec@ietf.org" <msec@ietf.org>, Sean Turner <turners@ieca.com>, "draft-weis-gdoi-iec62351-9@tools.ietf.org" <draft-weis-gdoi-iec62351-9@tools.ietf.org>
Subject: Re: [MSEC] Review comments, was RE: GDOI support for IEC 62351
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On 10/21/13 11:09 AM, "Brian Weis" <bew@cisco.com> wrote: >Hi Paul, > >On Oct 18, 2013, at 6:14 PM, Paul Lambert <paul@marvell.com> wrote: > >> >>> >>> We decided to drop support for AES-GCM here because there doesn't seem >>>to >>> be a safe way to use AES-GCM in the GOOSE and SV security transforms. >>> AES-GCM takes a counter as input, but there is no explicit counter >>> defined in the IEC documents by which the receiver would know what >>> counter to use for decryption (or for integrity protection if AES-GMAC >>>is >>> used). >> So what's used instead? > >The draft specifies AES-CBC for confidentiality, and HMAC-SHA256 for >integrity. Thanks. > >Brian > >> >> Paul >> > >-- >Brian Weis >Security, Enterprise Networking Group, Cisco Systems >Telephone: +1 408 526 4796 >Email: bew@cisco.com >
- [MSEC] GDOI support for IEC 62351 Brian Weis
- Re: [MSEC] GDOI support for IEC 62351 Brian Weis
- [MSEC] Review comments, was RE: GDOI support for … Fries, Steffen
- Re: [MSEC] Review comments, was RE: GDOI support … Fries, Steffen
- Re: [MSEC] Review comments, was RE: GDOI support … Brian Weis
- Re: [MSEC] Review comments, was RE: GDOI support … Paul Lambert
- Re: [MSEC] Review comments, was RE: GDOI support … Fries, Steffen
- Re: [MSEC] Review comments, was RE: GDOI support … Brian Weis
- Re: [MSEC] Review comments, was RE: GDOI support … Paul Lambert
- Re: [MSEC] Review comments, was RE: GDOI support … Brian Weis
- Re: [MSEC] Review comments, was RE: GDOI support … Vincent Roca
- Re: [MSEC] Review comments, was RE: GDOI support … Brian Weis
- Re: [MSEC] Review comments, was RE: GDOI support … Sandra Murphy
- Re: [MSEC] Review comments, was RE: GDOI support … William Atwood
- Re: [MSEC] Review comments, was RE: GDOI support … Brian Weis