Re: [TLS] ticket lifetimes

2019-01-28 Thread Christopher Wood
On Mon, Jan 28, 2019 at 10:04 PM Subodh Iyengar wrote: > > > Since clients already store tickets, could they not also store the > time of original ticket issuance and cap the resumption window to N > (7) days from that point? That is, it seems clients could implement > this behavior without any pr

Re: [TLS] ticket lifetimes

2019-01-28 Thread Subodh Iyengar
> Since clients already store tickets, could they not also store the time of original ticket issuance and cap the resumption window to N (7) days from that point? That is, it seems clients could implement this behavior without any protocol support. Correct, however the server currently provides a

Re: [TLS] ticket lifetimes

2019-01-28 Thread Christopher Wood
On Mon, Jan 28, 2019 at 9:43 PM Subodh Iyengar wrote: > > In TLS 1.3 we added a maximum age to the ticket lifetime to be 7 days. This > had several original motivations including reducing the time that a ticket is > reused (for privacy or PFS). Another major motivation for this was to limit > t

[TLS] ticket lifetimes

2019-01-28 Thread Subodh Iyengar
In TLS 1.3 we added a maximum age to the ticket lifetime to be 7 days. This had several original motivations including reducing the time that a ticket is reused (for privacy or PFS). Another major motivation for this was to limit the exposure of servers that use keyless ssl like mechanisms, i.e.

[TLS] TLS 1.3 in iOS

2019-01-28 Thread Tommy Pauly
Hi all, Last week, we shipped the first developer seed of iOS 12.2. Among other features, TLS 1.3 is now enabled by default for the entire system. All users of Network.framework and NSURLSession APIs will now negotiate TLS 1.3. The number of TLS 1.3 capable clients on the Internet should take q