Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-14 Thread Rob Sayre
Hi all, I would like to state up front that I am not disputing the sentence "Implementations MUST support TLS 1.2 [RFC5246]." If that's consensus, I guess I'm just in the rough, and at least the text covering implementations is much more encouraging than I expected. But the document is still not

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-14 Thread Yaron Sheffer
Hi Peter, Thank you for your comments and sorry for the delayed response. The abstract of the Racoon paper mentions TLS-DH(E) five times, so clearly the authors believe it applies to both TLS-DH and DHE. I think the disconnect is that Racoon is about public key reuse which you would characteriz

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-04 Thread Peter Gutmann
Peter Saint-Andre writes: >Given that we already discuss these matters in Section 7.4, I don't see the >need for additional text. The issue that I pointed out is in section 4.1, "General Guidelines", while what you're referring to is buried in the security considerations right at the end. What'

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-03 Thread Peter Saint-Andre
On 8/3/22 12:07 AM, Peter Gutmann wrote: Peter Saint-Andre writes: Hi Cullen, having looked more closely at the text that's already in 7525bis, I have a few questions inline... Me too, specifically in regard to the "DHE negotiation is broken" comment. The draft says: However, TLS 1.2

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-02 Thread Peter Gutmann
Peter Saint-Andre writes: >Hi Cullen, having looked more closely at the text that's already in 7525bis, >I have a few questions inline... Me too, specifically in regard to the "DHE negotiation is broken" comment. The draft says: However, TLS 1.2 implementations SHOULD NOT negotiate

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-02 Thread Peter Saint-Andre
Hi Cullen, having looked more closely at the text that's already in 7525bis, I have a few questions inline... On 8/1/22 4:18 PM, Peter Saint-Andre wrote: On 8/1/22 2:58 PM, Cullen Jennings wrote: On Jul 30, 2022, at 1:40 PM, Peter Saint-Andre wrote: Hi again, The authors have conferred

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-01 Thread Peter Saint-Andre
On 8/1/22 2:58 PM, Cullen Jennings wrote: On Jul 30, 2022, at 1:40 PM, Peter Saint-Andre wrote: Hi again, The authors have conferred on this and at this time we don't think that we can recommend anything other than EC ciphers, for several reasons: 1. DHE negotiation is broken. Perhaps a

Re: [Uta] [art] Artart last call review of draft-ietf-uta-rfc7525bis-09

2022-08-01 Thread Cullen Jennings
> On Jul 30, 2022, at 1:40 PM, Peter Saint-Andre wrote: > > Hi again, > > The authors have conferred on this and at this time we don't think that we > can recommend anything other than EC ciphers, for several reasons: > > 1. DHE negotiation is broken. Perhaps a bit more explanation in the d