Tangle - cookie keys file

[Gary E. Miller]

Yo Hal!

On Thu, 07 Mar 2019 19:11:59 -0800
Hal Murray via devel <devel at ntpsec.org> wrote:

> > If the cookie key file is unexpectedly removed, what other useful
> > option is there? If the file was permanently deleted, there's
> > really nothing to be done but re-create it anyway.   
> 
> The question is does the admin know something happened.

I don't think any cookie should ever touch the file system.

> > Also, by the way, the cookie key file is storing the multiple
> > cookie keys, right? So it get rewritten as key rotation happens?   
> 
> Yes.

I think it should be master key "K" and index "I" pairs.  Only.

> The draft suggests a way to derive the next key from the current
> key.  So with a slight delay while the CPU crunches, you could avoid
> the write by just deriving forward until you got to the right place.

Then you need a date/time with K/I pairs.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588

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    "If you can’t measure it, you can’t improve it." - Lord Kelvin
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