On 10/7/14, Nick Mathewson
... What's saddest: You didn't explain why you think it's broken.
"Revocable Anonymity" is a farce and distraction; Skipjack Clipper Clip[0] equivalent in every sense to the non-starter of "key escrow" and "government / lawful access mandated backdoors". all backdoors, no matter how well intentioned, lead straight to hell.[1] best regards, 0. "The Clipper chip was a chipset that was developed and promoted by the United States National Security Agency as an encryption device, with a built-in backdoor, intended to be adopted by telecommunications companies for voice transmission." - https://en.wikipedia.org/wiki/Clipper_chip 1. "The Athens Affair - How some extremely smart hackers pulled off the most audacious cell-network break-in ever" - http://spectrum.ieee.org/telecom/security/the-athens-affair