We all have secrets to keep. Those secrets could be personal dirt we want to keep from others, or they could be something as mundane as our credit card numbers or medical histories. But all of us have ...

I hope you enjoyed Ed’s guest posts on NP-complete problems on TV the last couple of Mondays. It’s always great to hear from others on math that they are thinking about. This week it’s me again, and ...

Split the Message into Characters Break the message into individual characters and create a list where each element is one character. Optionally, convert all characters to lowercase or uppercase for ...

Abstract: Single columnar transposition is an encryption technique used in text encryption to produce cipher text which is a permutation of its original text. In this study, cryptanalysis of Single ...

The text is rearranged in a grid format based on a given key. The characters are read column-wise in a new order determined by sorting the key. This scrambled text serves as the encrypted message. The ...

Abstract: In the area of cloud computing ensuring the utmost security for sensitivity data is of paramount significance. This look at undertakes a complete journey via a comparative analysis of four ...