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Security protocols are widely used to provide secure communication in many critical applications such as e-commerce and defense. Numerous formal methods have been used to ensure the desired working of security protocols. Formal methods provide rigorous analysis but are complex, whereas informal method are simple but lack the power to express the details of the analysis. Strand-space framework has...
The need for providing assurance in parameter matching in authentication protocols is emphasized by analyzing well-known Needham-Schroeder public-key protocol as well as the public-key extension of widely deployed network authentication protocol Kerberos-5. Authentication protocols achieve their goals when a participant guarantees its set of parameters to be in accordance with that of the rest of...
We develop informal principals and formal rules to verify security properties in cryptographic protocols. These principals are based on the notions of message origination, message freshness, ideal cryptography, message count, and etcetera. Our focus is the authentication and the secrecy properties. We offer a different perspective for analysis in which participants try to achieve guarantees from their...
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