Information Security using Cryptography and Image Processing

Meaning of Information security is protecting information and the systems from unauthorized access, use, disclosure, disruption, modification, inspection, recording or destruction. Therefore it is necessary to apply effective encryption/decryption methods to achieve data security. The user only needs to remember the short password to retrieve the key. The password can be forgotten and stolen. As Biometrics based authentication systems confirm an individual's identity based on the physiological and/or behavioral characteristics of the individual. It has advantages over password based methods. Biometrics based method provides direct link between the service and actual user. With biometrics, there is nothing to lose or forget, and it is relatively difficult to manipulate. Biometrics and cryptography are the two most prominent solutions for user authentication, data integrity preservation, and trustworthy verification. By combining biometrics with cryptography, high level of security can be achieved.