i cant think A blog belong to Mohammad Azwan bin Ali. Most of his writings are about his real life story, ideas, thoughts, moderate political views, computer, programming, tips & tricks, particularly in Linux…. and of course it includes some random unspecified crappy stuffs too! Don't forget to check Movies and Junkyard pages out!

Posts Tagged ‘cryptography’

straddling checkerboard with ruby

In programming on 31 January 2010 tagged cryptography, ruby with 2 comments

this week i sharpen my ruby saw with an excessive about straddling checkerboard encryption.
In cryptography, a straddling checkerboard is a device for converting an alphabetic  plaintext  into digits whilst simultaneously achieving fractionation (a simple form of information diffusion) and homophony (a simple method for suppressing peaks of the frequency distribution). It also is known as [...]