Some Edward Snowden leaks have revealed that the NSA and other intelligence agencies can break encryption barriers for mass surveillance purposes. It has been theorized that a flaw in encryption used by many Internet services lets the spy agency decrypt HTTPS, SSH, and VPN traffic, and a new paper seems to prove that.
Indeed, a massive effort comparable to the attempts of breaking the German Enigma coding machine during the World War II seems to have given the NSA the tools required to break trillions of secure connections.
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