Analysis of Various Cryptography Techniques: A Survey
Maintaining the confidentiality of data during communication has always been a prime concern of many researchers. Several encryption mechanisms have been developed in order to protect the secret data from the access of unauthorized users. Encryption can be thought of as a set of instruction used for conversion of data from a readable state to nonsense form. An encryption scheme is said to be effective if it provides high security, low computational time and high brute force search time for hackers. This paper is an effort to compare all the text based encryption schemes mentioned in literature. These schemes are implemented in MATLAB 2010 and their efficacy is compared based on various performance metrics such as time complexity, Correlation, Key sensitivity analysis, Differential attack analysis and Entropy. These results can be fruitful for researchers working in this direction.