scholarly journals Subject Review : Key Generation in Different Cryptography Algorithm

2019 ◽  
pp. 230-240 ◽  
Author(s):  
Zainab Khyioon Abdalrdha ◽  
Iman Hussein AL-Qinani ◽  
Farah Neamah Abbas
Keyword(s):  
Data Security ◽  
Communication Channels ◽  
Data Encryption ◽  
Key Generation ◽  
Essential Component ◽  
Encrypt Data ◽  
Encryption Algorithms

The importance of encryption in most organizations, therefore, it became necessary to encrypt data because data security is an essential component in order to maintain the security of data and information in various institutions. Encryption also helps to ensure the confidentiality and integrity of data during transmission through communication channels. Given the importance of the keys used in encryption as a key part in the strength of the algorithm and increase its security in most encryption algorithms, thus generating the key in many research the most important part in data encryption and its importance lies in the non-duplication of keys to ensure better results and theoretically impossible to break. In this paper, we try to describe and review many of the papers that were used to create the keys and compare them with each other.

Implementasi Algoritma Merkle-Hellman Knapsack dalam Penyandian Record Database

2020 ◽  
pp. 162-165
Author(s):  
Reni Rahmadani ◽  
Harvei Desmon Hutahaean ◽  
Ressy Dwitias Sari
Keyword(s):  
Data Security ◽  
Public Key Cryptography ◽  
Data Encryption ◽  
Key Generation ◽  
Software Developers ◽  
Data Owner ◽  
Encryption And Decryption ◽  
User Data ◽  
Np Complete ◽  
Knapsack Algorithm

A lot of data is misused without the data owner being aware of it. Software developers must ensure the security user data on their system. Due to the size of the market that houses data, the security of record databases must be of great concern. Cryptographic systems or data encryption can be used for data security. The Merkle-Hellman Knapsack algorithm is included in public-key cryptography because it uses different keys for the encryption and decryption processes. This algorithm belongs to the NP-complete algorithm which cannot be solved in polynomial order time. This algorithm has stages of key generation, encryption, and decryption. The results of this study secure database records from theft by storing records in the form of ciphertext/password. Ciphertext generated by algorithmic encryption has a larger size than plaintext.

scholarly journals RAW DATA SECURITY BY USING ELGAMAL AND SHA 256 PUBLIC KEY ALGORITHM

TEKNOKOM ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 1-6
Author(s):  
Indra Surya Permana ◽  
Taufik Hidayat ◽  
Rahutomo Mahardiko
Keyword(s):  
Data Security ◽  
Original Data ◽  
Data Encryption ◽  
Public Key ◽  
Data Delivery ◽  
Raw Data ◽  
Encrypted Data ◽  
Encrypt Data ◽  
Secure Data ◽  
Data Collections

The development of information technology has grown exponentially and various of data collections and its method has been obtained. In the era of big data, data has now become an asset that held important values, while in the implementation of data delivery, it clearly is not always safe. One of the method to secure data delivery is data encryption using Cryptography. Cryptography provides an encryption service to secure data delivery by transforming it to random values so that it can no longer be read. The goal in this study was to produce an application that could be used to encrypt data, using ElGamal's cryptography method and hash checking using the SHA256 algorithm. After encryption, to ensure the encrypted data is still the original data without any changes or manipulation by unauthorized 3rd party then done by checking the hash generated using SHA256 algorithm. The data used in this study was a sample of raw data from the ATPWTP survey (ability to pay and willing to pay) conducted by the BPS Cirebon (Central Statistics) in 2019 and the data was in the form of Excel and txt files. The encryption process resulted in a cipher larger than the plaintext and takes longer for the data encryption process than during the data cipher decryption process.

scholarly journals Data Security in Cloud Computing Using Elliptic Curve Cryptography

2020 ◽  
Author(s):  
Rosheen Qazi ◽  
Imran A. Khan
Keyword(s):  
Cloud Computing ◽  
Elliptic Curve ◽  
Data Security ◽  
Elliptic Curve Cryptography ◽  
Large Data ◽  
Data Encryption ◽  
Computational Power ◽  
Sensitive Data ◽  
Encrypt Data ◽  
Asymmetric Encryption

Encryption helps in transmitting sensitive data over an insecure channel without any danger of data being lost or being manipulated by some unauthorized entity. Different Encryption schemes have been applied for Data security in a different environment. Many cryptosystems worked during different eras and evolved accordingly with time. This paper mainly focuses on asymmetric encryption which is also known as Public key encryption scheme or Holomorphic encryption. However, due to large key size asymmetric encryption is mostly used for Key exchange rather than data Encryption. Nowadays, Data security is the main issue in large data centers and Cloud computing. This paper uses Elliptic Curve Cryptography to encrypt data in the cloud environment because the size of the key used in Elliptic Curve Cryptography is very small. Due to the small key size of Elliptic Curve, computational power is reduced and this results into least energy consumption. This paper shows that elliptic curve cryptography is fast and more efficient for data protection in a cloud computing environment and reduces the computational power and also increases the efficiency.

scholarly journals Efficient Hybrid Cryptography Algorithm

2020 ◽  
Vol 55 (3) ◽  
Author(s):  
Mayes M. Hoobi
Keyword(s):  
Elliptic Curve ◽  
Elliptic Curve Cryptography ◽  
Search Space ◽  
Data Encryption ◽  
Key Generation ◽  
Data Encryption Standard ◽  
Standard Algorithm ◽  
Encryption Algorithms ◽  
Brute Force Attack ◽  
Complexity Increase

Cryptography is the operation of transferring a specific message to prevent an attacker from accessing the contents of a message. To increase the level of security in any communication, both parties must have a copy of the encryption key. The Data Encryption Standard algorithm is insufficient due to its weak key generation, so that the key must be reconfigured to make this algorithm more secure, effective, and stronger. The key for encryption enhances securities of the Data Encryption Standard algorithm. This research assumed a combination of two efficient encryption algorithms to achieve the goal of information security by adding a new level of security to the Data Encryption Standard algorithm using the elliptic curve cryptography algorithm. This aim was met by adding two new key functions; the first one is EncK(), and the second one is DecK() for an encryption and decryption key of the Data Encryption Standard algorithm to make this algorithm more secure against attackers. The results obtained from this research also demonstrate good resistance against a brute-force attack, which makes the system more effective by applying the elliptic curve cryptography algorithm to encrypt and decrypt keys using the Data Encryption Standard. In addition, these modifications enhance the degree of complexity, increase key search space, and make the ciphered message more difficult for an attacker to crack.

scholarly journals Analysis of Cryptography Algorithms Implemented in Android Mobile Application

2021 ◽  
Vol 50 (4) ◽  
pp. 786-807
Author(s):  
Alen Salkanovic ◽  
Sandi Ljubic ◽  
Ljubisa Stankovic ◽  
Jonatan Lerga
Keyword(s):  
Operating System ◽  
Mobile Application ◽  
Data Encryption ◽  
Performance Outcomes ◽  
Primary Objective ◽  
Symmetric Encryption ◽  
Variable Size ◽  
Encryption Algorithms ◽  
Android Operating System ◽  
Time Required

This paper evaluates the performances of numerous encryption algorithms on mobile devices running the Android operating system. The primary objective of our research was to measure and compare the relative performances of tested algorithm implementations (Data Encryption Standard (DES), 3DES, Advanced Encryption Standard (AES), ChaCha20, Blowfish, and Rivest Cipher 4 (RC4)) on the Android platform. The algorithms were compared in terms of CPU utilization by measuring the time required to encrypt and decrypt variable size text files. Besides evaluating the six common symmetric encryption ciphers, a comparison has been conducted for several Password-Based Encryption (PBE) algorithms. Diverse cipher transformations were evaluated for each algorithm by utilizing various feedback modes and padding schemes. Two smartphone devices were used for testing, with different versions of the Android operating system and hardware specifications. The summarized performance outcomes for various cipher transformations are presented to demonstrate the effectiveness of each algorithm.

scholarly journals Proxy Re-Encryption in cloud using ALBC (adaptive lattice based cryptography)

2019 ◽  
Vol 16 (3) ◽  
pp. 1455
Author(s):  
Chandrakala B M ◽  
S C Lingareddy
Keyword(s):  
Comparative Analysis ◽  
Data Sharing ◽  
Data Security ◽  
Key Generation ◽  
Encryption Scheme ◽  
Two Phase ◽  
Data Store ◽  
Learning With Errors ◽  
Lattice Based Cryptography

<p>In recent days, data sharing has provided the flexibility to share the data, store the data, and perform operation on data virtually as well as cost effectively. Data sharing in cloud is one of the feature, which is being popular and widely accepted. However, the concern here is to ensure the data security and this has led the researcher to research in this area. To provide the security several Proxy re-encryption scheme has been introduced, however all these method lacks of efficiency. Hence In this paper, we propose a scheme known as ALBC (Adaptive Lattice Based Cryptography), this scheme follows the two phase i.e. encryption and Re-encryption. Encryption phase has few algorithms such as Key_Gen, Enc, Dec. Similarly ALBC Re-Enc has five algorithm i.e. Key_Gen, Key_ReGen,  Enc, Re-Enc, Dec. our algorithm not only provides the security but also solves the problem of RL(Ring-learning) with errors problems. In order to evaluate, our algorithm is compared with the existing model in terms of encryption time, decryption time, re-encryption time, key generation  and key regeneration by varying the various key size. When we observe the comparative analysis, it is observed that our algorithm outperforms the existing algorithm.</p>

scholarly journals LLSFIoT: Lightweight Logical Security Framework for Internet of Things

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Isha Batra ◽  
Hatem S. A. Hamatta ◽  
Arun Malik ◽  
Mohammed Baz ◽  
Fahad R. Albogamy ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Data Security ◽  
Algorithm Design ◽  
Research Work ◽  
Generation Mechanism ◽  
Key Generation ◽  
Security Framework ◽  
Heavy Weight ◽  
Work First ◽  
Security Enhancements

Current research in Internet of Things (IoT) is focused on the security enhancements to every communicated message in the network. Keeping this thought in mind, researcher in this work emphasizes on a security oriented cryptographic solution. Commonly used security cryptographic solutions are heavy in nature considering their key size, operations, and mechanism they follow to secure a message. This work first determines the benefit of applying lightweight security cryptographic solutions in IoT. The existing lightweight counterparts are still vulnerable to attacks and also consume calculative more power. Therefore, this research work proposes a new hybrid lightweight logical security framework for offering security in IoT (LLSFIoT). The operations, key size, and mechanism used in the proposed framework make its lightweight. The proposed framework is divided into three phases: registration, authentication, and light data security (LDS). LDS offers security by using unique keys at each round bearing small size. Key generation mechanism used is comparatively fast making the compromise of keys as a difficult task. These steps followed in the proposed algorithm design make it lightweight and a better solution for IoT-based networks as compared to the existing solutions that are relatively heavy weight in nature.

scholarly journals Key Generation based on Henon map and Lorenz system

2020 ◽  
Vol 31 (1) ◽  
pp. 41
Author(s):  
Ansam Sabah Bader ◽  
Shaymaa Hameed ◽  
Maisa’a Abid Ali K.
Keyword(s):  
Lorenz System ◽  
New Method ◽  
Key Generation ◽  
Hénon Map ◽  
Henon Map ◽  
Data Authentication ◽  
Secure Information ◽  
Data Store ◽  
Significant Process ◽  
Encryption Algorithms

Securing information has been the most significant process for communication and data store. Orderly to secure information such as data authentication,  data integrity, and confidentiality must be verified based on algorithms of cryptography. Where, the most important part of any encryption algorithms is the key which specifies if the system is strong enough or not. The proposal of this paper is a new method to generate keys based on two kinds of chaos theory in order to improve the security of cryptographic algorithms. The base of this proposal is to investigate a new method for generating random numbers by using the 3D Lorenz system and 2D Henon map. The newly generated keys have successfully passed the National Institute of Standards and Technology (NIST) statistical test suite

scholarly journals Chaotic Rivest-Shamir-Adlerman Algorithm with Data Encryption Standard Scheduling

2017 ◽  
Vol 6 (3) ◽  
pp. 219-227
Author(s):  
Edwin R. Arboleda ◽  
Joel L. Balaba ◽  
John Carlo L. Espineli
Keyword(s):  
Data Encryption ◽  
Key Generation ◽  
Data Encryption Standard ◽  
Rsa Algorithm ◽  
Hybrid Data ◽  
Symmetric Key ◽  
Chaos System ◽  
Multiple Keys ◽  
Security Device ◽  
Provided Examples

Cryptography, which involves the use of a cipher, describes a process of encrypting information so that its meaning is hidden and thus, secured from those who do not know how to decrypt the information. Cryptography algorithms come with the various types including the symmetric key algorithms and asymmetric key algorithms. In this paper, the authors applied the most commonly used algorithm, which is the RSA algorithm together with the Chaos system and the basic security device employed in the worldwide organizations which is the Data Encryption Standard (DES) with the objective to make a hybrid data encryption. The advantage of a chaos system which is its unpredictability through the use of multiple keys and the secrecy of the RSA which is based on integer factorization’s difficulty is combined for a more secure and reliable cryptography. The key generation was made more secure by applying the DES schedule to change the keys for encryption. The main strength of the proposed system is the chaotic variable key generator that chages the value of encrypted message whenever a different number of key is used. Using the provided examples the strength of security of the proposed system was tested and demonstrated.

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