The 802.11 standard for wireless networks includes a Wired Equivalent Privacy (WEP) protocol, used to protect link-layer communications from eavesdropping and other attacks. We have discovered several serious security flaws in the protocol, stemming from misapplication of cryptographic primitives. The flaws lead to a number of practical attacks that demonstrate that WEP fails to achieve its security goals. In this paper, we discuss in detail each of the flaws, the underlying security principle violations, and the ensuing attacks. 1.

In the late 1980s and 1990s, the rise in the need for increasingly sophisticated security in information systems led to the creation of standards such as TCSEC, ITSEC and CTCPEC to aid in the assessment of security products for their suitability in the protection of national security. These standards have evolved into the Common Criteria: a set of fundamental principles with a basis in best practice and experience, against which products may be evaluated to establish a variety of levels of confidence in those products. However, such models are no longer the sole domain of Defence systems: government and commercial organisations are also under pressure to deploy more mature technology to ensure the security of their information assets. This paper examines the impact of the Common Criteria model on business practice and strategy and considers the ways in which both business and the information technology industry may develop in the near future. 1.

This course provides an introduction to the capabilities, applications, and limitations of the computer as a problem solving tool. The course provides the student with an

This paper briefly explains how the U.S. military currently implements secure networks internally and with multi-national alliance partners, the limitations of the current implementations, and proposes an architecture to overcome these problems. The proposed architecture provides a secure, environment that does not require all members to be treated as peers and allows different private communities. The proposed architecture is not necessarily the only or the best architecture, but is a starting point for discussion and provides the research and private computer communities with an insight into the military's unique problems. Many of the concepts or requirements discussed in the paper can be directly applied to the commercial sector.

• Primes are the fundamental building blocks of arithmetic. • There are infinitely many prime numbers. • The fundamental theorem of arithmetic says that each whole number can be uniquely decomposed into a product of primes. • The answer to whether or not there is a pattern behind the primes has eluded mathematicians for millennia. • One can find arbitrarily long “prime deserts ” on the number line. • One can find finite arithmetic sequences of primes of any length. • Clock math is a way of generalizing arithmetic. • Primes and clock math can be used together to create strong encryption schemes. Reason is immortal, all else mortal. Pythagoras Mathematicians have tried in vain to this day to discover some order in the sequence of prime numbers, and we have reason to believe that it is a mystery into which the human mind will never penetrate.