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» On the Design and Security of RC2
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ATAL
2009
Springer
15 years 5 months ago
Smart cheaters do prosper: defeating trust and reputation systems
Traders in electronic marketplaces may behave dishonestly, cheating other agents. A multitude of trust and reputation systems have been proposed to try to cope with the problem of...
Reid Kerr, Robin Cohen
CRYPTO
2009
Springer
121views Cryptology» more  CRYPTO 2009»
15 years 5 months ago
Collusion-Free Multiparty Computation in the Mediated Model
Collusion-free protocols prevent subliminal communication (i.e., covert channels) between parties running the protocol. In the standard communication model, if one-way functions ex...
Joël Alwen, Jonathan Katz, Yehuda Lindell, Gi...
ISW
2009
Springer
15 years 5 months ago
Structural Attacks on Two SHA-3 Candidates: Blender-n and DCH-n
The recently started SHA-3 competition in order to find a new secure hash standard and thus a replacement for SHA-1/SHA-2 has attracted a lot of interest in the academic world as ...
Mario Lamberger, Florian Mendel
ISW
2009
Springer
15 years 5 months ago
Nonce Generators and the Nonce Reset Problem
A nonce is a cryptographic input value which must never repeat within a given context. Nonces are important for the security of many cryptographic building blocks, such as stream c...
Erik Zenner
JCDL
2009
ACM
115views Education» more  JCDL 2009»
15 years 5 months ago
Using timed-release cryptography to mitigate the preservation risk of embargo periods
Due to temporary access restrictions, embargoed data cannot be refreshed to unlimited parties during the embargo time interval. A solution to mitigate the risk of data loss has be...
Rabia Haq, Michael L. Nelson