Designers, auditors, and certifiers of trustworthy systems must rigorously assess compliance with security policies. Because security is best built into systems at all levels of abstraction, engineers and other practitioners who design, verify, or certify trustworthy systems need the capability to reason rigorously about security policies in general, and access decisions in particular. What is ...

Providing network security is one of the most important tasks in todays Internet. Unfortunately, many users are not able to protect themselves and their networks. Therefore, a novel security concept is presented to protect users by providing security measures at the Internet Service Provider level. Already now, Internet Service Providers are using different security measures, e.g., Virtual Loca...

Security is a primary concern in this era of pervasive computing. Software-only protection mechanisms provide inadequate security as the Operating System becomes the root of trust and also due to their inability to guard against physical attacks on computing devices. On the contrary, hardware based security mechanisms facilitate the construction of trustworthy secure systems. However, existing ...