Laurie: Improving SSL certificate security

I like your proposal.

Few ideas how it might be further improved:

1. On first use, query pool of certificate fingerprint servers and check that others see what you see. Not a fool proof but helps in any case. Hard stop only if severs see different fingerprint. This has a potential privacy issue though.

2. Allow certificate to be updated without hard stop by caching fingerprint of next valid certificate immediately after storing the initial certificate. Hard stop if certificate changes and the new certificate fingerprint doesn't match the previously stored fingerprint.