Re: [TLS] [OPSAWG] CALL FOR ADOPTION: draft-reddy-opsawg-mud-tls

2020-09-14 Thread Eliot Lear
Hi Ben, Much of this relitigates RFC 8520, but IMHO it is worth reviewing assumptions from time to time. Remember, the purpose of MUD is to identify an authorization profile for a device to a network so that either access can be granted based on that profile or an anomaly can be detected. The

Re: [TLS] 2nd WGLC for Delegated Credentials for TLS

2020-09-14 Thread Daniel Migault
Hi Nick, Thanks for the response and I apologize for my delayed response. However I still have two major concerns regarding the current proposed text: Mentioning keyless as the only solution complementary to DC still seems to me technically inaccurate. With KeylessSSL, the key server receives a

Re: [TLS] [OPSAWG] CALL FOR ADOPTION: draft-reddy-opsawg-mud-tls

2020-09-14 Thread Eric Rescorla
I tend to agree with Ben Schwartz on this. I have two concerns about this draft: 1. It seems likely that it will lead to ossification. While it is true that devices can in theory update their MUD descriptions, as a practical matter expecting middleboxes to enforce certain properties of the TLS han

Re: [TLS] TLS ECH, how much can the hint stick out?

2020-09-14 Thread Salz, Rich
* So, hiding whether a server supports ECH or not (which I called level 2) is a significantly higher bar than hiding whether a particular connection is using ECH or not (level 1). * I would like to understand how the WG feels about this requirement and that there is consensus that we ne