The foundations of modern end-to-end encryption: Signatures
Now that most of our communications are digital, a problem arises: How to keep our messages private despite all the intermediaries? Internet Service Providers (ISPs) and Service providers (Facebook, Telegram, Line, WeChat...) are all in a position of Man-In-The-Middle (MITM) and are able to inspect, record, and even modify our
Source: kerkour.com