An optimistic acknowledgment (opt-ack) is an acknowledgment sent by a misbehaving client for a data segment that it has not received. Whereas previous work has focused on opt-ack ...
d Abstract) XiaoFeng Wang∗ Michael K. Reiter† We present congestion puzzles (CP), a new countermeasure to bandwidth-exhaustion attacks. Like other defenses based on client puz...
Hidden services were deployed on the Tor anonymous communication network in 2004. Announced properties include server resistance to distributed DoS. Both the EFF and Reporters Wit...
Security concerns are becoming increasingly critical in networked systems. Firewalls provide important defense for network security. However, misconfigurations in firewalls are ...
Lihua Yuan, Jianning Mai, Zhendong Su, Hao Chen, C...
Abstract—In this paper, we propose a distributed key management framework based on group signature to provision privacy in vehicular ad hoc networks (VANETs). Distributed key man...