Encryption processes for scripts and the development of algorithms for stored data (subject review)

Abstract

Before tackling the security of systems, it is good to know a little about the different techniques available to ensure the security of communications. The science studying secret codes is called cryptography, and the science studying the weaknesses of these codes is cryptanalysis. They are both intimately linked, of course, and expertise in one implies a good knowledge of the other. This principle remains general to all security problems that you may encounter, computer or not; you cannot be a good security expert without potentially being a good thief. I emphasize the potentially, the goal is not to be a literal thief, but rather to master the techniques and the way of thinking in a legal framework. Cryptography therefore relates, in a broad sense, to information masking techniques. It is a very old discipline, which has been historically linked to the diplomatic and military fields for which the secrecy of correspondence is crucial. Today, everyone uses some form of cryptography, usually without knowing it,your bank card, email account, Amazon order page and even your login password are based on so-called cryptographic primitives, i.e. mathematical functions optimized for masking some information.