Hackers Unveil Their Plan to Change Email Forever | TIME

Later in the article: "Ultimately, what the Dark Mail project is aiming for is nothing less than a complete transformation of the way email works on planet Earth."

"Metadata — information like the identity of the sender or the time and date a message was sent — has been a key target of NSA surveillance. “Ironically, we have been protecting the stuff that they’re not collecting,” Callas said.

Dime uses multiple layers of cryptography — think Russian nesting dolls — to protect an email’s content and metadata from beginning to end as an email is passed through the Internet from a sender to a recipient, or recipients. The idea is to create an email system in which no service provider has all the information about a message, so there is no entity (like Lavabit, for example) for federal authorities to come down on."

Hackers Unveil Their Plan to Change Email Forever | TIME