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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: NTP Md5 or AutoKey?
So, can i safely assume that nobody deployes Autokey security for NTP and the best that one does right now is by using the cryptographic authentication provided in the base spec of NTPv4. Cheers, Glen On Tue, Nov 4, 2008 at 11:59 AM, Kevin Oberman <[email protected]> wrote: >> Date: Mon, 3 Nov 2008 22:23:07 -0800 >> From: "Paul Ferguson" <[email protected]> >> >> On Mon, Nov 3, 2008 at 10:15 PM, Glen Kent <[email protected]> wrote: >> >> > Hi, >> > >> > I was wondering what most folks use for NTP security? >> > >> > Do they use the low cost, light weight symmetric key cryptographic >> > protection method using MD5 or do folks go in for full digital >> > signatures and X.509 certificates (AutoKey Security)? >> > >> >> I'm just wondering -- in globak scheme of security issue, is NTP >> security a major issue? >> >> Just curious. > > It's probably not a "major issue", but forged NTP data can, in theory, > be used to allow the implementation of replay attacks. I'll admit I have > never heard of a real-world case. > -- > R. Kevin Oberman, Network Engineer > Energy Sciences Network (ESnet) > Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) > E-mail: [email protected] Phone: +1 510 486-8634 > Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 >
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