The Ideal-Cipher Model of a blockcipher is a well-known and widely-used model dating back to Shannon [24] and has seen frequent use in proving the security of various cryptographi...
We describe a collision-finding attack on 16 rounds of the Tiger hash function requiring the time for about 244 compression function invocations. Another attack generates pseudo-ne...
Abstract. Logics of knowledge have important applications for reasoning about security protocols and multi-agent systems. We extend the semantics for the logic of necessity with lo...
While You're Away (WYA) is a distributed system that aggregates the computational power of individual computer systems. WYA introduces the notion of Roaming Computations - Ja...
In a series of papers Patarin proposes new efficient public key systems. A very interesting proposal, called 2-Round Public Key System with S Boxes, or 2R, is based on the difficul...