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FC
2007
Springer
141views Cryptology» more  FC 2007»
13 years 11 months ago
The Unbearable Lightness of PIN Cracking
Responding to the PIN cracking attacks from Berkman and Ostrovsky (FC 2007), we outline a simple solution called salted-PIN. A randomly generated salt value of adequate length (e.g...
Omer Berkman, Odelia Moshe Ostrovsky
FC
2007
Springer
147views Cryptology» more  FC 2007»
13 years 9 months ago
Certificate Revocation Using Fine Grained Certificate Space Partitioning
A new certificate revocation system is presented. The basic idea is to divide the certificate space into several partitions, the number of partitions being dependent on the PKI en...
Vipul Goyal
FC
2007
Springer
128views Cryptology» more  FC 2007»
13 years 11 months ago
Informant: Detecting Sybils Using Incentives
We propose an economic approach to Sybil attack detection. In our Informant protocol, a detective offers a reward for Sybils to reveal themselves. The detective accepts from one i...
N. Boris Margolin, Brian Neil Levine
FC
2007
Springer
138views Cryptology» more  FC 2007»
13 years 11 months ago
Cryptographic Securities Exchanges
While transparency in financial markets should enhance liquidity, its exploitation by unethical and parasitic traders discourages others from fully embracing disclosure of their o...
Christopher Thorpe, David C. Parkes
FC
2007
Springer
151views Cryptology» more  FC 2007»
13 years 11 months ago
Conditional E-Cash
Abstract. We introduce a novel conditional e-cash protocol allowing future anonymous cashing of bank-issued e-money only upon the satisfaction of an agreed-upon public condition. P...
Larry Shi, Bogdan Carbunar, Radu Sion