Review on Cryptography Classification and its applications

Abstract

In the past decades cryptography was only assumed to be used for military information and political communication secure and in protecting the national security. However, the use of cryptography was limited those days. But nowadays, the range of cryptography applications has been evolved. They are expanded a lot in the modern area as safety guards after the development of communication means as it is a way of safeguarding the crucial data from unauthorized access. It has appeared as a secure means for transmission of information from source to destination. It mainly helps in restricting intrusion from third party. It provides data confidentiality, electronic signatures, integrity, and advanced user authentication. The methods of cryptography use mathematics for securing the data (encryption and decryption).