Chrome isn't exporting the private key. It's importing the key you give it.
Idk for what that is useful besides Virus Scanners, but personally I would like my browser to make its own key and never leak it or accept new ones.
Idk for what that is useful besides Virus Scanners, but personally I would like my browser to make its own key and never leak it or accept new ones.
No. It is _exporting_ the _secret_ key.
It can't import the key, in many modern key agreement schemes neither client nor server gets to dictate the keys used, if you used a fixed or predictable value instead of a random one you just give up your security, you gain nothing. So the keys are (and should be) random for each session.