Two high-ranking members of the UK Secret Service GCHQ reported in detail how they believe the Authorities could have access to encrypted end-to-end communications.
The study was written by Ian Levy, technical director of the National Cyber Security Center and Crispin Robinson, Cryptology Analyst, GCHQ, and claims that any end-to-end encryption can be completely functional, but its enforcement authorities access to the law.
"It is relatively easy for a service provider to silently add a participant to a group discussion or call," the authors report.
"The service provider usually checks the identity system and thus decides who is who and which machines they will have access to to participate in a conversation or a call."
The study's authors say such a solution is no more annoying than the telephone surveillance used in the last century, and that their solution would not "weaken end-to-end encryption."
"The British government wants companies to poison their customers' private conversations by secretly adding the government as a third party, which means that anyone on your friends list could be a spy," said Edward Snowden.
"There could be no trust through the mediation of the company."
Absolute madness: the British government wants companies to poison their customers' private conversations by secretly adding the government as a third party, meaning anyone on your friend list would become "your friend plus a spy." No company-mediated identity could be trusted.
The GCHQ he revealed also how he chooses security flaws that inform technology companies and added that he does not notify these companies about all the vulnerabilities he discovers.