A SC (stream cipher) is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (key stream). In a stream cipher each plaintext digit is encrypted one at a time with the corresponding digit of the key stream, to give a digit of the cipher text stream.
Published in Chapter:
Verifiable Response in Heterogeneous Cloud Storage: An Efficient KDC Scheme
Abdul Wahid (Maulana Azad National Urdu University, India), Mohatesham Pasha Quadri (Maulana Azad National Urdu University, India), Ahmad Talha Siddiqui (Maulana Azad National Urdu University, India), Mudasir M. Kirmani (Sher-e-Kashmir University of Agricultural Science and Technology of Kashmir, India), and Khaleel Ahmad (Maulana Azad National Urdu University, India)
Copyright: © 2015
|Pages: 18
DOI: 10.4018/978-1-4666-6559-0.ch005
Abstract
A Distributed Cloud Storage Provider (DCSP) is used for managing the client's data. However, the platform is vulnerable to security attacks, which results in huge losses of client data. The confidential data in an enterprise system may be illegally accessed through a remote interface provided by a heterogeneous-cloud and archives. The data may be lost or tampered with when it is stored in a storage pool outside the enterprise on a cloud. To achieve reliability, consistency, security, and confidentiality of user information Kerberos Protocol is used. The Kerberos protocol is designed to provide reliable authentication over open and insecure networks. The symmetric-key cryptography is maintained for transaction over the network. In this chapter, a cooperative Key-Distribution Center (KDC) scheme is proposed to support dynamic scalability on multiple storage servers. The results of the research work show that KDC provides effective security properties required by Kerberos protocol to mitigate the impact of various attacks in any cloud.