A Reliable Lightweight Two Factor Mutual Authenticated Session Key Agreement Protocol for Multi-Server Environment

Wireless Personal Communications - Today's hyper-connected digital environment makes two-way authentication and secured key agreement a fundamental requirement for a secure connection. The...     

Amorphous Cobalt-Boron Alloy Electrodeposition and Dissolution

Co-B alloy has been deposited on steel from an alkaline citrate bath. Uniform deposits have been obtained in the current density range of 8–15 Adm ^?2.Cvclic voltammetric studies on platinum from this bath reveal that the cobalt citrate complexes undergo stepwise electronation with the participation of hydroxyl ions. The borates undergo reduction to boron in the alloy deposition. The hydrogen evolution reaction has been found to be hindered by cobalt and borate ions. Stripping voltammetric curves on the alloy film suggest the dissolution of cobalt from a cobalt rich phase.     

Improved Secure Identification-Based Multilevel Structure of Data Sharing in Cloud Environments

The Cloud Computing Environment (CCE) developed for using the dynamic cloud is the ability of software and services likely to grow with any business. It has transformed the methodology for storing the enterprise data, accessing the data, and Data Sharing (DS). Big data frame a constant way of uploading and sharing the cloud data in a hierarchical architecture with different kinds of separate privileges to access the data. With the requirement of vast volumes of storage area in the CCEs, capturing a secured data access framework is an important issue. This paper proposes an Improved Secure Identification-based Multilevel Structure of Data Sharing (ISIMSDS) to hold the DS of big data in CCEs. The complex file partitioning technique is proposed to verify the access privilege context for sharing data in complex CCEs. An access control Encryption Method (EM) is used to improve the encryption. The Complexity is measured to increase the authentication standard. The active attack is protected using this ISIMSDS methodology. Our proposed ISIMSDS method assists in diminishing the Complexity whenever the user’s population is increasing rapidly. The security analysis proves that the proposed ISIMSDS methodology is more secure against the chosen-PlainText (PT) attack and provides more efficient computation and storage space than the related methods. The performance of the proposed ISIMSDS methodology provides more efficiency in communication costs such as encryption, decryption, and retrieval of the data.     

Enforcing a Source-end Cooperative Multilevel Defense Mechanism to Counter Flooding Attack

The exponential advancement in telecommunication embeds the Internet in every aspect of communication. Interconnections of networks all over the world impose monumental risks on the Internet. A Flooding Attack (FA) is one of the major intimidating risks on the Internet where legitimate users are prevented from accessing network services. Irrespective of the protective measures incorporated in the communication infrastructure, FA still persists due to the lack of global cooperation. Most of the existing mitigation is set up either at the traffic starting point or at the traffic ending point. Providing mitigation at one or the other end may not be a complete solution. To insist on better protection against flooding attacks, this work proposes a cooperative multilevel defense mechanism. The proposed cooperative multilevel defense mechanism consists of two-level of mitigation. In the first level, it is proposed to design a Threshold-based rate-limiting with a Spoofing Resistant Tag (TSRT), as a source end countermeasure for High-Rate Flooding Attacks (HRFA) and spoofing attacks. In the second level, the accent is to discriminate normal traffic after Distributed Denial of Service (DDoS) traffic and drop the DDoS traffic at the destination end. Flow Congruence-based Selective Pushback (FCSP), as a destination-initiated countermeasure for the Low Rate Flooding Attack (LRFA). The source and the destination cooperate to identify and block the attack. A key advantage of this cooperative mechanism is that it can distinguish and channel down the attack traffic nearer to the starting point of the attack. The presentation of the agreeable cooperative multilevel safeguard mechanism is approved through broad recreation in NS-2. The investigation and the exploratory outcomes show that the proposed plan can effectively identify and shield from the attack.