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December 2, 2012

Columlevel encryptions

Colum-level encryptions Colum-level encryptions are introduced at Microsoft SQL Server 2005. Here in this article I am trying to demonstrate how to implement the columns level encryption. Column-level encryption is implemented as a series of built-in functions and a key management hierarchy.  1.    EncryptByCert() and DecryptByCert() Encrypts and decrypts data …

3D Rotation Algorithm about arbitrary axis with CC code

3D Rotation Algorithm about arbitrary axis with C/C++ code When an object is to be rotated about an axis that is not parallel to one of the coordinate axes, we need to perform some additional transformations. In this case, we also need rotations to align the axis with a selected …