Let’s think about what blockchain does and what a certification authority (CA) does.
It could be but it may not, it depends on how random those 20 characters are. Let me demonstrate the thought with 2 common attacks on passwords. These attacks are:
If all current encryption were suddenly broken, that would be the end of it for encryption as we know it. With one exception - one-time pad. One-time pad is a provably secure encryption that can’t be broken, but it has practical difficulties - it requires keys as long as the data.
Encryption domain is simply a set of computers or other computing devices (or even people :) ) who share encryption key(s) allowing them to trust each other.
It is a digital fingerprint we use to compare two documents or to check if a document has been changed.
Letsencrypt is now installed on more than 50% of all webservers. This is mostly thanks to its adoption by many web hosting providers. We can also see it starts being used by large companies and enterprises. But what are the downsides?
This will be controversial but I think the reason why Facebook suddenly got to front-pages is an alleged use of its data for Trump’s campaign (and other political purposes). I’ve been a post-doc at Cambridge Uni in 2007–08 and I remember a lot of activity around Facebook as its data was easy to collect (in that instance the research was about social networks, trust, … one particular research area was to produce models of social connectivity for simulation of security threat models in large networks). There has been loads of research papers using its data and no-one was bothered then nor anytime up to 2017.
WiFi routers should pass any traffic transparently unless its configuration is really messed up.
Technically, all you need is to add correct extensions to your certificate, which will identify it as an EV certificate. CA/Browser forum defined one in https://cabforum.org/wp-content/... (section 9.3.2).
No answer is universally correct but here’s two use-cases so you can pick which is more appropriate for you.