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CCS
2004
ACM
15 years 6 months ago
Mitigating bandwidth-exhaustion attacks using congestion puzzles
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...
XiaoFeng Wang, Michael K. Reiter
IPPS
2003
IEEE
15 years 6 months ago
Are E-Commerce Users Defenceless?
We are interested in new ways of threats and attack on the e-commerce. The server side of e-commerce platform is usually very well protected and secured. Unfortunately, this is no...
Matej Trampus, Mojca Ciglaric, Matjaz Pancur, Tone...
PQCRYPTO
2010
250views Cryptology» more  PQCRYPTO 2010»
15 years 4 months ago
Strongly Unforgeable Signatures and Hierarchical Identity-Based Signatures from Lattices without Random Oracles
Abstract. We propose a variant of the “bonsai tree” signature scheme, a latticebased existentially unforgeable signature scheme in the standard model. Our construction offers ...
Markus Rückert
CSFW
2009
IEEE
15 years 4 months ago
Authentication without Elision: Partially Specified Protocols, Associated Data, and Cryptographic Models Described by Code
Specification documents for real-world authentication protocols typically mandate some aspects of a protocol's behavior but leave other features optional or undefined. In add...
Phillip Rogaway, Till Stegers
94
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GLOBECOM
2009
IEEE
15 years 4 months ago
Multi-Path Key Establishment against REM Attacks in Wireless Ad Hoc Networks
Secure communications in wireless ad hoc networks require setting up end-to-end secret keys for communicating node pairs. Due to physical limitations and scalability requirements, ...
Tian Lan, Ruby B. Lee, Mung Chiang