Paper Details

Today data and information security is most challenging work in computer network system. In this paper weintegrate two asymmetric algorithm such as Nth prime RSA-CRT with LSB Stegnography and ECC ,one symmetricalgorithm AES, SHA-1 message digest function, and ECMQV for encrypt/decrypt data to extend the level of security. Weuses Elliptic Curve Cryptography (ECC) for key generation, AES and Nth prime RSA-CRT with LSB Stegnographyalgorithm for encryption, ECDSA for authentication, SHA-1 for integrity, and ECMQV for key exchange. It provide highamount of confidentiality, data integrity and privacy. RSA algorithm is enhanced by combination of CRT with LSBStegnography algorithm. Stegnography is the science that hiding the information in images involves communicatingsecret data in an appropriate multimedia carrier, e.g., image, audio, and video files. Due to this proposed system is muchmore efficient than existing system. This new security protocol has been designed for better security with integrity usinga combination of both symmetric and asymmetric cryptographic techniques.

Prity Kumari, Upendra Kumar, Shyam Krishna Singh, “N-tier Encryption/Decryption for Data Security”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 4, Issue 10, pp. 427-439, October 2017.