Transducer-based analysis of cryptographic protocols

INSTITUT FÜR INFORMATIK UND PRAKTISCHE MATHEMATIK Tree Transducer-based Analysis of Cryptographic Protocols

Design of cybernetic metamodel of cryptographic algorithms and ranking of its supporting components using ELECTRE III method

Nowadays, achieving desirable and stable security in networks with national and organizational scope and even in sensitive information systems, should be based on a systematic and comprehensive method and should be done step by step. Cryptography is the most important mechanism for securing information. a cryptographic system consists of three main components: cryptographic algorithms, cryptogr...

INSTITUT FÜR INFORMATIK UND PRAKTISCHE MATHEMATIK Automata-based Analysis of Recursive Cryptographic Protocols

Cryptographic protocols can be divided into (1) protocols where the protocol steps are simple from a computational point of view and can thus be modeled by simple means, for instance, single rewrite rules—we call these protocols non-looping—and (2) protocols, such as group protocols, where the protocol steps are complex and typically involve an iterative or recursive computation— we call them r...

Process algebraic modeling of authentication protocols for analysis of parallel multi-session executions

Many security protocols have the aim of authenticating one agent acting as initiator to another agent acting as responder and vice versa. Sometimes, the authentication fails because of executing several parallel sessions of a protocol, and because an agent may play both the initiator and responder role in parallel sessions. We take advantage of the notion of transition systems to specify authen...

A short introduction to two approaches in formal verification of security protocols: model checking and theorem proving

In this paper, we shortly review two formal approaches in verification of security protocols; model checking and theorem proving. Model checking is based on studying the behavior of protocols via generating all different behaviors of a protocol and checking whether the desired goals are satisfied in all instances or not. We investigate Scyther operational semantics as n example of this...