Abstract. The recent approach of a model-based framework for steganography fruitfully contributes to the discussion on the security of steganography. In addition, the first propos...
All security services rely to a great extent on some notion of trust. However, even today, there is no accepted formalism or technique for the specification of trust and for reaso...
Abstract. At present, network users have to manage one set of authentication credentials (usually a username/password pair) for every service with which they are registered. Single...
Abstract. Key exchange protocols in the setting of universal composability are investigated. First we show that the ideal functionality FKE of [9] cannot be realized in the presenc...
In a policy-based system, policy goals are described with respect to network entities (e.g., networks and users) instead of enforcement points (e.g., firewalls and routers). This ...