Hybrid Cryptography Technique Research Articles

A Compact Hardware Design and Implementation on FPGA Based Hybrid of AES and Keccak SHA3-512 for Enhancing Data Security

Data security means protecting important information from unauthorised persons. In a security system, cryptography is the most secure method. Cryptography has many kinds, but the Advanced Encryption Standard (AES) is the most secure system. If combined with AES and Secure Hash Algorithm-3-512Bits (SHA3-512), it becomes compact, more secure, and more authenticated for data communications. The proposed methodology is a hybrid cryptography technique that combines AES with the SHA3-512 algorithm. This system becomes a strong, secure system and produces a strong cipher text. The proposed method AES/SHA3-512 is Hardware implementation on the Artix-7 FPGA family yields the lowest cost and highest hardware efficiency with a reduction in area usage of LUT 18.49%, Flip Flops 0.83%, and IO 3.8%. The proposed architecture is synthesised and simulated using the Vivado 2017.2 version Tool.

Hybrid AES model with elliptic curve and ID based key generation for IOT in telemedicine

With the aid of various medical sensors, a remote patient monitoring system will be designed for Internet of Things (IoT)-based telemedicine applications. With the aid of AI algorithms, the healthcare sensor data will eventually be identified and forecasted. In the current healthcare sector, a lot of sensitive data is exchanged. The integration of an increasing number of digital technologies in hospitals, together with laboratory and outpatient examinations of patients and their accompanying files, have all contributed to the growth of data related to patient care in recent years. Electronic health record systems are medical management systems that include all of a patient's personal and medical data. As a consequence, it is crucial that this data be stored and secured in the cloud. This paper describes a data storage and security solution that is well suited for the Internet of Medical Things. Because of the shorter key length, the improved Elliptic Curve Cryptography (ECC) approach using Blake2 hashing takes substantially less time to encrypt. The data is encrypted with the created key and the Advanced Encrypted Standard (AES). The proposed security approach is a hybrid cryptography technique that combines symmetric and asymmetric key encryption, resulting in a more secure system.

A Hybrid Cryptography Technique for Cloud Data Security

A Hybrid Cryptography Technique for Cloud Data Security

A hybrid cryptography technique for data storage on cloud computing

Cloud computing security has received great attention by researchers in the past few years due to the importance of the data used and the increasing use of cloud computing, which has become the provision of many services and in various fields. So, data Security is a major issue in storing data on clouds. Cryptography techniques are among the most important ways to provide data security on cloud. This paper presents a data protection model where data is encrypted using a hybrid cryptographic algorithm which is composed of Advanced Encryption Standard (AES), Blowfish and Message-Digest algorithm (MD5). Thus, this model provides speed and robust data encryption.

Triple phase hybrid cryptography technique in a wireless sensor network

Security in the wireless networks is the main factor when they are deployed in a harsh environment, and this is the crucial factor in the case of sensor networks. Cryptography has a significant role to achieve this in wireless sensor networks. Though there exist several cryptographic algorithms, but none of them provide desired results for security. In this paper, a new cryptographic technique has been developed that uses both symmetric and asymmetric methods. In the proposed algorithm, advanced encryption standard (AES), data encryption standard (DES), and modified Rivest–Shamir–Adleman (m-RSA) are used in different phases of the algorithm because symmetric techniques provide a high level of security and asymmetric ones provide easier key management. In phase 1 of an algorithm, AES has been used; in phase 2, DES has been used; and in the last phase, m-RSA has been used, and all three phases are executed in parallel. The proposed algorithm is compared with existing techniques in terms of total execution time and decryption time, and it has been analyzed that the proposed algorithm provides a better result as compared to the existing algorithm.

A New Hybrid Cryptography Technique in Wireless Sensor Network

The wireless sensor network is a large number of tiny nodes installed in insecure environment for monitoring, gathering and transferring data and are prone to security threats for its limited resources. In order to transmit the data and to protect from different attacks in the network maintained. To achieve confidentiality, authenticity and authorization of data which secure the data from different attacks cryptographic algorithm were used. The number of keys used in the cryptographic algorithm determines the secu the data. Cryptographic algorithms are broadly classified into two types symmetric cryptography and asymmetric the symmetric key cryptographic algorithm, a secret key is in the network and in asymmetric key cryptographic two keys are used for data security. In wireless symmetric key cryptography required more storage to store the key among all the nodes of the network and cryptography more computation time is require encryption and decryption. To avoid memory and computation overhead we proposed a hybrid cryptosystem to handle the security in the wireless sensor network. Initially shared key is exchanged among nodes using ECC which is a public key algorithm. Data is encrypted and decrypted using RC4 symmetric key algorithm. Various performance measures such as time taken for encryption and decryption process and memory needed for storing cipher text data. The proposed model shows faster encryption of data and takes less memory for key s compared to the traditional approach.

ENHANCE DATA SECURITY IN CLOUD COMPUTING USING MACHINE LEARNING AND HYBRID CRYPTOGRAPHY TECHNIQUES

In Cloud computing, the user’s can access their important data via internet that is being stored on the remote servers. As technology is growing day by day, there is a rapid increase in the personal and crucial data. This brings up the need of securing the users data. Data can be of any type and each required different degree of protection. In this paper, we have proposed a model that classifies the data according to its security parameters. The performance of the existing KNN is improved by appending it with ensemble learning technique. The basic algorithms of ensemble learning i.e., base level-0 and meta level-1 are modified. This will improve prediction capability and classification accuracy of existing KNN technique. Also to secure sensitive data, the hybrid cryptography technique is used. The quantitative analysis show that the accuracy of ensemble learning when combines with existing KNN is 73.5% whereas the accuracy of KNN was 65.5%.

Improved Image Encryption for Real-Time Application over Wireless Communication Networks using Hybrid Cryptography Technique

Advances in communication networks have enabled organization to send confidential data such as digital images over wireless networks. However, the broadcast nature of wireless communication channel has made it vulnerable to attack from eavesdroppers. We have developed a hybrid cryptography technique, and we present its application to digital images as a means of improving the security of digital image for transmission over wireless communication networks. The hybrid technique uses a combination of a symmetric (Data Encryption Standard) and asymmetric (Rivest Shamir Adleman) cryptographic algorithms to secure data to be transmitted between different nodes of a wireless network. Three different image samples of type jpeg, png and jpg were tested using this technique. The results obtained showed that the hybrid system encrypt the images with minimal simulation time, and high throughput. More importantly, there is no relation or information between the original images and their encrypted form, according to Shannon’s definition of perfect security, thereby making the system much more secure.

Efficient Approach for Securing Message Communication in Wireless Sensor Networks from Node Clone Attack

Objectives: Security is a very decisive factor for Wireless Sensor Networks because of ever growing popularity in the tangible world. These types of resource constrained network suffers from physical attack, i.e. Node clone attack. Methods/Statistical Analysis: In Node clone attack an attacker capture a node, modify it and replicate clone node in WSNs. The main motive of these clone nodes to obtain mastery over the whole network and to aggravate various inside attacks against sensor networks. The message during communication from the one legitimate node to another legitimate node is also not secure thus altered by the attacker. Findings: In this paper, we propose an efficient algorithm for securing message communication in Wireless Sensor Networks (WSNs) from node clone attack. This algorithm makes use of the hybrid cryptography technique which consist of Advanced Encryption Standard (AES) and Elliptical Curve Cryptography (ECC) and lightweight hash function. In this algorithm, AES algorithm encrypts the message and digital signature whereas ECC algorithm encrypts the private key and generates digital signature. The lightweight hash function produces small and fixed size hash digest from the message. The analysis of the proposed algorithm is performed on the ground of parameters like computational overhead, communication overhead, storage overhead and high security level. Application/Improvements: The proposed algorithm authenticate message during communication with confidentiality. The analysis indicates that the suggested algorithm is suited for energy constrained sensor networks.

A Hybrid Cryptography Technique for Improving Network Security

The security of network and the network data is primary aspect of the network providers and service providers. Therefore during the data exchange the cryptographic techniques are utilized for securing the data during various communications. On the other hand the traditional cryptographic techniques are well known and the attackers are known about the solution. Therefore new kind of cryptographic technique is required which improve the security and complexity of data cipher. In this paper a hybrid cryptographic technique for improving data security during network transmission is proposed and their implementation and results are reported. The proposed secure cryptographic technique promises to provide the highly secure cipher generation technique using the RSA, DES and SHA1 technique. The implementation of the proposed technique is provided using the JAVA technology and their performance in terms of space and time complexity is estimated and compared with the traditional RSA cryptography. The proposed cryptographic technique found the efficient and improved cipher text during comparative performance analysis.

ADOPTING HYBRID CRYPTOGRAPHY TECHNIQUE FOR REDUCTION OF NETWORK OVERHEAD IN MANETS

Mobile Ad Hoc Network is a infrastructure less network it is one of the most important and highly unusual application, which is famous among critical operations like warfare use, emergency recovery because of its self configuring nature of nodes. MANETs does not require any centralized administration, it dynamically forms a temporary network with the changing topology. Due to its open environment and irregular distribution of nodes MANET is vulnerable to malicious attack hence a new intrusion detection system named EAACK is introduced. This scheme demonstrates the complexity of malicious behavior detection rate in certain situations without greatly affecting the network performance. EAACK is a acknowledgment based intrusion detection system it is required to ensure that all the acknowledgment packets are authentic and unattained hence all the packets are signed digitally before they are sent out and till the receiver accepts, due to the usage of both digital signature and acknowledgment packet it causes a great network overhead. This paper proposes and enforces a hybrid cryptography technique in order to minimize the network overhead caused by digital signature.

Meeting the Security Requirements of Electronic Medical Records in the ERA of High-Speed Computing

This study has two objectives. First, it aims to develop a system with a highly secured approach to transmitting electronic medical records (EMRs), and second, it aims to identify entities that transmit private patient information without permission. The NTRU and the Advanced Encryption Standard (AES) cryptosystems are secured encryption methods. The AES is a tested technology that has already been utilized in several systems to secure sensitive data. The United States government has been using AES since June 2003 to protect sensitive and essential information. Meanwhile, NTRU protects sensitive data against attacks through the use of quantum computers, which can break the RSA cryptosystem and elliptic curve cryptography algorithms. A hybrid of AES and NTRU is developed in this work to improve EMR security. The proposed hybrid cryptography technique is implemented to secure the data transmission process of EMRs. The proposed security solution can provide protection for over 40years and is resistant to quantum computers. Moreover, the technique provides the necessary evidence required by law to identify disclosure or misuse of patient records. The proposed solution can effectively secure EMR transmission and protect patient rights. It also identifies the source responsible for disclosing confidential patient records. The proposed hybrid technique for securing data managed by institutional websites must be improved in the future.

Hybrid Cryptography Enhanced Adaptive Acknowledgment (HCEAACK) Intrusion Detection System

A mobile Ad-hoc network (MANET) is a wireless network that does not rely on any fixed infrastructure (i.e., routing facilities, such as wired networks and access points), and whose nodes must coordinate among themselves to determine connectivity and routing. The traditional way of protecting networks is not directly applicable to MANETs. Many conventional security solutions are ineffective and inefficient for the highly dynamic and resource-constrained environments where MANETs use might be expected. Since prevention techniques are never enough, intrusion detection systems (IDSs), which monitor system activities and detect intrusions, are generally used to complement other security mechanisms. So, it is crucial to develop efficient intrusion-detection mechanisms to protect MANET from attacks. To provide high security for information on MANETs, Intrusion Detection Systems (especially that based on acknowledgment packets) used different types of cryptographic algorithms to protect the acknowledgment packets from attacks of intruder. These cryptographic algorithms are required to provide data security and user's authenticity. In this paper we proposed an intrusion-detection model to protect MANETs from attacks named Hybrid Cryptography Enhanced Adaptive Acknowledgment (HCEAACK) based on acknowledgment packets. In order to ensure the integrity and high level of security of the proposed model, acknowledgment packets encrypted and digitally signed by its sender before they are sent out and verified by its receiver until they are accepted, for this purpose we use hybrid cryptography Technique. This hybrid cryptography Technique has been used to detect hacking on the acknowledgment packets in intrusion detection systems like RSA hacking problem that appears in other pervious system. We used two algorithms to implement our Hybrid Cryptography technique, Advanced Encryption Standard (AES) algorithm and RSA algorithm. The two algorithms are cooperated to give more security to acknowledgment packets. The proposed model has been compared with other popular mechanisms like watchdog, Two Acknowledgment (Two-ACK), Adaptive Acknowledgment (AACK) and Enhanced Adapted Acknowledgment (EAACK) through simulation by Network Simulator NS 2.34. To evaluate the performance of IDS for existing and proposed technique we estimated the values of three performance metrics Packet delivery factor (PDF), Routing Overhead (OH) and Average end-to-end delay (D) in many scenarios. Compared to contemporary approaches, our proposed model demonstrates higher malicious-behavior-detection rates in certain circumstances while does not greatly affect the network performances.

SECURITY ANALYSIS OF FBDK BLOCK CIPHER FOR DIGITAL IMAGES

Network security is one of the major concerns in th e modern world. In this regard, a strong security tis required to protect user data. Cryptography techniques plays an importa nt role in secured transmission through encryption of data and thus ensuring integrity, authenticity, confidentiality of informa tion. Several encryption algorithms have been propo sed like AES (Advanced Encryption Standard), DES (Data Encryption Standard ) and RSA. These provide very good encryption for t ext applications. However, these encryption schemes appear not to be ideal for image applications. Some algorithms like GKSBC and RC6 provide very goo d encryption for digital images. New techniques are ethat are aimed at providing secured transmi ssion of images over networks. The FBDK (Fixed Block with Dynamic Key Si ze) block cipher is a new cryptography technique de signed using simple operations like XOR, substitutions, circular shifti ng. The FBDK algorithm is applicable for blocks of any size with key size being dynamic for each block. It does not involve any com plex mathematical operations like modular exponenti ation. It is a hybrid cryptography technique based on symmetric key and akey cryptosystems. This paper investigate s the security of FBDK block cipher for digital images against brute-force attack, statistical analysis and Differential analysis attacks. In this paper, various security analysis tests has been discussed which ar e helpful in finding out whether the FBDK encryptio n algorithm can do secure encryption or not. Experimental results proves the security and efficiency of FBDK cipher for images against all aforementioned types of attacks which justifies its consideration for real time image applications.