Playfair Cipher 1.not even the large number of keys in a monoalphabetic cipher provides security 2.one approach to improving security was to encrypt...
Radio frequency spectrum is a scarce and critical natural resource that is utilized for many services including surveillance, navigation, communicatio...
We introduce a sub-cell WENO reconstruction method to evaluate spatial derivatives in the high-order ADER scheme. The basic idea in our reconstruction...
The ever-increasing demand for private and sensitive data transmission over wireless net- works has made security a crucial concern in the current and...
I originally started writing this book as part of the Symbian Press Technology series back in May 2008. Since that time, a lot has changed in the mo...
