Link Encryption Research Articles

Blockchain-based decentralized security using Crypto-Proof of Stake for securing sensitive personal health care records

The blockchain is tremendous technology for securing data transmission over a decentralized cloud environment. A PHR can offer easy data exchange and storage. However, unauthorised individuals may steal sensitive users' data from cloud devices, leading to significant privacy leakage risks. The main problem is that the non-authentication policy leads to key leakages due to unauthorised entries through intruders. To resolve this problem, we propose Blockchain-Based Decentralized Security (BCDS) using Crypto-Proof of Stake (CPoS) for securing sensitive Personal health care records. First, to process the security, the lattice construction phase is used based on blockchain decentralized. The Random shuffle block padding is intended to rehash the block to score with padding bits to block-level encryption. Then the sensitive terms are marginalized by threshold labels being highly encrypted by Optimized Starvation Point Link Encryption (OSPLE) to protect the data. By integrating Master Node Key Aggregation Policy (MNKAP) to verify the contact proof of staking authentication to the peer end to authenticate the security. The Delegate proof of stack provides higher security to protect the sensitive terms by accessing PHR records transactions to improve the integrity proofing to the admittance of the key to deliver the data. The key signature verification then validates the key for authentication to decrypt the protected data. This proves a higher security protocol and authentication principle than any other method as well as security proofing.

Optimization of Data Encryption Technology in Computer Network Communication

In recent years, computer network communication system has been widely used in many industrial fields, which brings great convenience to people’s daily life and work. Therefore, this paper describes and analyzes the current situation and characteristics of the application of data encryption technology in computer network communication security. This paper points out the common threats to the current network security, discusses the data encryption technology applied to the network communication security, including link encryption technology, node encryption technology and end-to-end encryption technology, and deeply analyzes the application of data encryption technology in the computer network communication security. The results show that the MSE value of data 1 is 42.453, that of data 2 is 87.324, and that of data 3 is 87.324674.

Research and Application of Substation Safety Communication Based on MMS Alternative Protocol

At present, most substations are constructed based on IEC 61850 standard. The communication protocols in the station mainly include MMS, GOOSE and SMV, which are gradually exposed in engineering practice. Some deficiencies and potential safety hazards have emerged. For this reason, based on the MMS alternative protocol, the function and security of its implementation are introduced. In terms of functions, MMS alternative protocol adds multiple services and optimizes the deficiencies of the existing MMS protocol; for security, the application layer of the MMS alternative protocol implements two-way identity authentication based on the SM2 algorithm and despatching certificate, preventing unauthorized devices to prevent illegal access and attacks from the source of protocol; the transport layer of the MMS alternative protocol implements full link encryption and authentication based on the SM2 algorithm and despatching certificate to ensure the transmitted data message is antiforgery and non-repudiation and antitheft, protect the confidentiality and integrity of data messages. Therefore, the MMS alternative protocol has been greatly optimized on function, and the security authentication and transmission encryption mechanism of the protocol are focused on the security aspect. The final experimental results prove that the MMS alternative protocol has a certain reference significance in engineering applications.

Analysis of Data Encryption Algorithms for Telecommunication Network‐Computer Network Communication Security

Nowadays, the development of information technology can be described as extremely rapid, especially with the widespread use of the Internet; the security of communications in the network has become an important issue we are facing. The purpose of this article is to solve the problems in today’s network security data encryption algorithms. Starting from the computer network communication security data encryption algorithm, we discuss the effects of several different encryption methods on improving network security. The research results show that it is known that the application of link encryption algorithm in network communication security encryption algorithm can increase the security index by 25%, the node encryption algorithm can increase the security index by 35%, and the end‐to‐end encryption algorithm can make the cyber activity safety index to increase by 40%. Among them, RSA algorithm and DES algorithm are two very representative algorithms; they represent different encryption systems. From the perspective of network data link, there are three methods of encryption algorithm, namely, link encryption algorithm, node encryption algorithm, and end‐to‐end encryption algorithm.

A Secure MANET Routing Protocol for Crisis Situations

Emergency and rescue operations are often carried out in areas where the network infrastructure cannot be relied on for message exchange between first responders. Since a fundamental feature of a Mobile Ad Hoc Network is the ability to operate independently of existing infrastructure, it is deemed a well-suited solution to first responders scenarios. In this article, the authors describe a security extension to the OLSR routing protocol specifically designed for first responder scenarios. The proposed protocol provides node authentication and access control using asymmetric encryption and digital certificates, and also offers a secure group communication scheme. A link encryption scheme is devised to allow for efficient encryption of data even in broadcast mode, without the need for a network-wide shared key. By utilising pairwise symmetric keys for link confidentiality, the authors' solution is both efficient and scalable.

Security Algorithms for Cloud Computing

With growing awareness and concerns regards to Cloud Computing and Information Security, there is growing awareness and usage of Security Algorithms into data systems and processes. This paper presents a brief overview and comparison of Cryptographic algorithms, with an emphasis on Symmetric algorithms which should be used for Cloud based applications and services that require data and link encryption. In this paper we review Symmetric and Asymmetric algorithms with emphasis on Symmetric Algorithms for security consideration on which one should be used for Cloud based applications and services that require data and link encryption.

고속 영상데이터 암호화에 적합한 SES Alarmed 링크 암호동기 방식

CCSDS 규격은 국제 우주 통신 분야에서 하나의 규격으로 폭넓게 사용되고 있다. 이 규격에서 암호화는 계층별로 고유의 암호 프로토콜을 수행해 통신 채널에서 보안 요구사항을 만족하도록 하고 있고, 동기화를 위해서는 암호화된 데이터의 시작부에 암호화 동기를 삽입하여 수행한다. 그러나 예외적인 상황(타이밍 지터링, 시스템의 비정상적인 종료 등)의 발생 시 수신 장비는 데이터를 수신하더라도 정상적인 데이터를 복원할 수 없게 되는 문제점을 가지고 있다. 본 논문에서는 송수신 도중에 문제가 발생할 경우 송신측에 SES Alarm 신호를 전송하여 정상적인 송수신이 이루어지도록 하는 SES Alarmed 링크 암호동기 방식을 제안하고, 성능 분석을 통하여 SES Alarm 신호를 위한 최적의 조건을 제시하였다. CCSDS Standard is widely used in international space telecommunication area. In this standard, Encryption is realized using a unique hierarchical encryption protocol and satisfied security requirements of communication channels. For synchronization, encryption sync is attached in the beginning of encrypted data. But exceptional case(timing jittering, abnormal system shutdown, etc.) is occurred, receiving equipment cannot decrypt received data. In this paper, we propose a SES Alarmed link encryption synchronization method for sending warning signal to the transmitter when some problems have been occurred during the transmission and we also suggest optimum conditions for SES Alarm signal through performance analysis.

On link encryption against wiretapping attack in network coding

Network coding has been shown to offer an intrinsic security advantage in terms of node-based wiretapping attack. Previous literature explored the security advantage by defining and investigating the security level at an arbitrary intermediate node. As pointed out in other studies and observed by us, in order to achieve the security level at all intermediate nodes, it is necessary to have an admissible link encryption scheme to prevent all links from eavesdropping. “Admissibility” here promises that an adversary cannot obtain more meaningful (decoded or decodable) information about the original message than that disclosed at the node he controls. In this article, we study a similar problem but focus on link encryption. We propose an admissible link encryption scheme LNCLE; in conjunction with LNCLE, linear network coding achieves its security level at all intermediate nodes. In comparison with a trivial link encryption scheme (TLE) which is based on classical link encryption, LNCLE is more efficient in the sense that both key size and computation cost are greatly reduced.

Key challenges in securing WiMAX mesh networks

AbstractWorldwide interoperability for microwave access (WiMAX), designed by the IEEE 802.16 standards group, is one of the most promising broadband wireless technologies with respect to delivering high‐speed connectivity in the last mile. A mesh network configuration was added for improved coverage and throughput. We describe security concerns for WiMAX mesh mode such as malicious sponsor nodes and privacy. We also seek to reduce the processing load as a result of the use of link encryption. We introduce two different types of attacks as a result of different types of malicious sponsor nodes. The first type of attack occurs when the malicious sponsor node has not actually joined the current mesh network but solicits new nodes to join the mesh network through it. The second type of attack occurs when the malicious node is a member of the mesh network and selectively drops data from its child nodes. To prevent the first attack, we propose a new security protocol that adds to the standard control messages a pair of secret authorization keys (AK). To handle the second attack, we propose a reputation‐based scheme that is specific to WiMAX mesh networks. We conduct a numerical analysis and simulations to highlight the strengths of the proposed schemes. The proposed reputation‐based scheme uses the MSH‐NCFG control message that is used in the WiMAX standard to send reputation information about nodes in the mesh network. Nodes that are joining the mesh network receive and process MSH‐NCFG messages and decide which sponsor node through which to join the network. We conduct a numerical analysis to determine the amount of time for reputation information to propagate through the mesh network, thus allowing joining nodes to avoid malicious sponsor nodes. The simulation results show that the proposed scheme can reduce the overall data drop rate in WiMAX mesh networks in the presence of the aforementioned attacks from malicious sponsor nodes. Copyright © 2009 John Wiley & Sons, Ltd.

Defense data network security architecture

The Department of Defense (DOD) is changing the security structure of the Defense Data Network. Existing classified backbones are merging to form a single segment. DISNET, that uses a new host - to - host encryption system. When completed, DISNET will carry classified data of all security levels, while MILNET continues to carry unclassified traffic. MILNET is being strengthened by link encryption devices on trunk and access lines. Subscriber computers and network elements in both DISNET and MILNET will have to satisfy at least Class C2 (Controlled Access Protection) of the DOD Trusted Computer System Evaluation Criteria. There are no similar plans for the Internet.

Communication security in a distributed network

In order for a distributed network to function securely, the integrity of the data transmitted over the communication links must be maintained. The use of either link encryption or end-to-end encryption will help to maintain the integrity of transmitted data, although there are differences in the level of security which they provide. This paper begins with an analysis of link encryption and end-to-end encryption. Five communication security goals are then described which concern the protection of transmitted data through the use of these encryption techniques.