International Journal of Computer Applications in Engineering Sciences (IJCAES)
Cryptography plays a key role in ensuring the privacy and integrity of data. Cryptanalysis is the study of how to crack encryption algorithms and their implementations. Differential cryptanalysis is a plain text attack which occurs in the cryptographic system. Testing can control and observe the internal states of the system. While testing in the cryptographic system, by observing the input and output bit changes, the third persons may shift out key. To reduce the observability and to increase the security, Robust Secure Scan design (RSS) is proposed.