This paper proves "tight security in the random-oracle model relative to factorization" for the lowest-cost signature systems available today: every hash-generic signatur...
As computer infrastructures become more complex, security models must provide means to handle more flexible and dynamic requirements. In the Organization Based Access Control (Or...
Flexible and distributed management systems based on mobile agents have certain advantages over centralized and static management architectures. However, security plays a decisive...
We present tools to support model-based security engineering on both the model and the code level. In the approach supported by these tools, one firstly specifies the securitycr...
We initiate the study of security for key-dependent messages (KDM), sometimes also known as “circular” or “clique” security, in the setting of identity-based encryption (I...