05-05-2014, 11:12 AM
NYMBLE BLOCKING SYSTEM
INTRODUCTION
Anonymous network
IP hiding facilities
Polipo, Tor, USAIP
Users misuses this network for abuse
They deface popular websites
Websites cannot blacklist individual IP address
They blacklist entire anonymizing network
Current Strategy
In pseudonymous credential systems
Users are added to a blacklist
Weak in anonymity
In anonymous credential system
Group signatures
Lacks scalability
NYMBLE
A system that allows websites to selectively blacklist users of anonymizing networks.
Blocks user without user's IP-address.
Legitimate users enjoy anonymity.
Blacklisted users got blocked for future connections.
Previous connections remain unlinkable.
CONCLUSION
Nymble is comprehensive credential system.
Add a layer of accountability to any publicly known anonymizing network.
Servers blacklist misbehaving users maintaining their privacy.
Increase the mainstream acceptance of anonymizing network.