Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.

2010-02-21 Thread Eric Rescorla
On Sun, Feb 21, 2010 at 4:22 PM, Mark Andrews wrote: > > In message <315ad36e-879a-4512-a6a8-b64372e3d...@sinodun.com>, John Dickinson > w > rites: >> Hi, >> >> It might also be worth adding a line at the start reminding of the need for N >> SEC and NSEC3 - namely that the signing and serving of

Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.

2010-02-21 Thread Roy Arends
On Feb 21, 2010, at 7:22 PM, Mark Andrews wrote: > NSEC3 > has a non zero false positive rate due to the fact that the names > are hashed. Are you going on again about the possibility of hash collisions is SHA-1? Roy ___ DNSOP mailing list DNSOP@ietf

Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.

2010-02-21 Thread Mark Andrews
In message <315ad36e-879a-4512-a6a8-b64372e3d...@sinodun.com>, John Dickinson w rites: > Hi, > > It might also be worth adding a line at the start reminding of the need for N > SEC and NSEC3 - namely that the signing and serving of the zone are separate > operations and that it is therefore nece

Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.

2010-02-21 Thread John Dickinson
Hi, It might also be worth adding a line at the start reminding of the need for NSEC and NSEC3 - namely that the signing and serving of the zone are separate operations and that it is therefore necessry to create records that cover the very large number of non-existent names that lie between th

Re: [DNSOP] rfc4641bis: NSEC vs NSEC3.

2010-02-21 Thread Todd Glassey
On 2/20/2010 8:48 AM, Paul Wouters wrote: On Sat, 20 Feb 2010, Alex Bligh wrote: There are two meachanisms to provide authenticated proof of exsitance/non-existance in DNSSEC. I don't believe either provides proof of existence (apart from existence of the NSECx record). Yep - agreed. If yo