[Cryptography] [FORGED] Re: Escrowing keys

[Viktor Dukhovni]

> On May 2, 2017, at 2:50 PM, Phillip Hallam-Baker <phill at hallambaker.com> wrote:
> 
> It isn't really the case that control systems were expected to last a hundred years.
> Most would be ripped out and replaced on a regular basis.

https://www.nytimes.com/2017/05/01/nyregion/new-york-subway-signals.html

   On a recent evening, Mr. Habersham walked along the train tracks near 34th Street
   in Manhattan as workers replaced antiquated switches and cables. A signal system
   should last about 50 years, he said, but the one that guides trains through this
   slice of Manhattan has been in place for about 80.

-- 
	Viktor.