تحسين النتائح
ترتيب حسب
من
الى
الصفحة 1
الصفحة 1
Beginning SQL Server 2008 for Developers : From novice to professional
SQL Server 2008 is a first–rate database management system. It offers more capability than any previous release of SQL Server. More than just a classic relational database management system, SQL Server 2008 includes exciting and powerful features that make it useful for everything from large corporate data warehouses to ad hoc departmental databases. You'll find enhanced support for XML, new support for spatial data, transparent data encryption, a policy–based management system, and more.
Algebraic Aspects of the Advanced Encryption Standard
The Belgian block cipher Rijndael was chosen in 2000 by the U.S. government’s National Institute of Standards and Technology (NIST) to be the successor to the Data Encryption Standard. Rijndael was subsequently standardized as the Advanced Encryption Standard (AES), which is potentially the world’s most important block cipher. In 2002, some new analytical techniques were suggested that may have a dramatic effect on the security of the AES. Existing analytical techniques for block ciphers depend heavily on a statistical approach, whereas these new techniques are algebraic in nature.
Brute Force : Cracking the data encryption standard
In the 1960s, it became increasingly clear that more and more information was going to be stored on computers, not on pieces of paper. With these changes in technology and the ways it was used came a need to protect both the systems and the information. For the next ten years, encryption systems of varying strengths were developed, but none proved to be rigorous enough. In 1973, the NBS put out an open call for a new, stronger encryption system that would become the new federal standard. Several years later, IBM responded with a system called Lucifer that came to simply be known as DES (data encryption standard).
