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July 17, 2012

Dynamic Data Authentication (DDA)

Dynamic Data Authentication (DDA) is a more securer way of authentication because it authenticates the card itself. After the authentication we can trust on the uniqueness of the card. Contrast between SDA and DDA SDA guarantees that data on cards is valid because we trust a high level certification authority …

Using Multiple Interfaces

One of the benefits of implementing interfaces instead of inheriting from a class is that you can implement more than one interface at a time. This gives you the power to do multiple inheritance without some of the downside. To implement multiple interfaces in C#, you separate each included interface …

Different type of referential actions in foreign key

Different type of referential actions in foreign key Foreign key is an important part of referential integrity. But we often confuse about the foreign key referential actions and their implementations. Here is a beautiful collections that help you to clear your doubts related to it. Foreign keys are defined in …

SDR soon playing at a university near you

SDR soon playing at a university near you Two years ago I assisted at a meeting at Elektor during which Software Defined Radio (SDR), GNU radio and its hardware platform the Universal Software Radio Peripheral (USRP) were discussed. The GNU radio people were really convincing and I liked the concept, …

Returning Two Dimensional Array from a Function in C

Returning Two Dimensional Array from a Function in C Many author do not include topics about returning array from a functions in their books or articles. It is because, in most  of the cases, there is no need of array to be returned from a function. Since, on passing array …