On 2013-08-26 11:04 AM, Christian Huitema wrote:
Of course the data can be signed, encrypted, etc. But the rule of the game is that the adversary can manufacture as many peers as they want -- something known as the Sybil attack. They can then perform various forms of denial.
We need, and have not designed, a good distributed reputation system, resting on Zooko's triangle and a large global hash tree that provides an unfalsifiable past history of the past conduct of key holders.
Such a global hash tree requires, like bitcoin, a solution to the Byzantine Generals Problem - a known hard problem that is nonetheless soluble.
A distributed reputation system can also provide things like debt based money that provides an incentive for seeding - for providing storage of interesting content as well as an incentive for upload bandwidth of interesting content. Bittorrent provides an upload bandwidth incentive, but no storage incentive.
_______________________________________________ The cryptography mailing list email@example.com http://www.metzdowd.com/mailman/listinfo/cryptography