Cryptography: An Art of Writing a Secret Code

摘要

In present era the requirement of internet for wireless communication is rising day by day and thus there is a need of security to guard such communication by users on insecure wireless channels. Data sent over the communication channels is susceptible to attacks because of sensitive information it contain.Cryptography is an art of writing a secret code that defend the data getting exchanged between two communicating parties from external attack. Cryptography is used to hide the confidential details so that the information can be sent securely over the timid network. In this paper a brief review of cryptography is presented along with the study of various cryptography techniques which are widely used to protect data from intruder attack. Varioussecurity threats to data over an insecure network are studied. In this paper different cryptography methods are discussed along with the data threats and how that data can be protected through different cryptography techniques.Full Paper