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 Improved Structure of Data Encryption Standard Algorithm

2020 ◽  
Vol 55 (5) ◽  
Author(s):  
Mays M. Hoobi
Keyword(s):  
Data Encryption ◽  
Encryption Algorithm ◽  
Key Generation ◽  
Brute Force ◽  
Generation System ◽  
Data Encryption Standard ◽  
Standard Algorithm ◽  
Standard Data ◽  
Cipher Text ◽  
Major Data

The Internet is providing vital communications between millions of individuals. It is also more and more utilized as one of the commerce tools; thus, security is of high importance for securing communications and protecting vital information. Cryptography algorithms are essential in the field of security. Brute force attacks are the major Data Encryption Standard attacks. This is the main reason that warranted the need to use the improved structure of the Data Encryption Standard algorithm. This paper proposes a new, improved structure for Data Encryption Standard to make it secure and immune to attacks. The improved structure of Data Encryption Standard was accomplished using standard Data Encryption Standard with a new way of two key generations. This means the key generation system generates two keys: one is simple, and the other one is encrypted by using an improved Caesar algorithm. The encryption algorithm in the first 8 round uses simple key 1, and from round 9 to round 16, the algorithm uses encrypted key 2. Using the improved structure of the Data Encryption Standard algorithm, the results of this paper increase Data Encryption Standard encryption security, performance, and complexity of search compared with standard Data Encryption Standard. This means the Differential cryptanalysis cannot be performed on the cipher-text.

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.

scholarly journals Comparison of AES and DES Algorithms Implemented on Virtex-6 FPGA and Microblaze Soft Core Processor

2018 ◽  
Vol 8 (5) ◽  
pp. 3544
Author(s):  
G. Renuka ◽  
V. Usha Shree ◽  
P. Chandra Sekhar Reddy
Keyword(s):  
Dominant Role ◽  
Data Encryption ◽  
Soft Core ◽  
Advanced Encryption Standard ◽  
Description Language ◽  
Important Data ◽  
Data Encryption Standard ◽  
Software Implementations ◽  
Hardware Description ◽  
Encryption Algorithms

Encryption algorithms play a dominant role in preventing unauthorized access to important data. This paper focus on the implementations of Data Encryption Standard (DES) and Advanced Encryption Standard (AES) algorithms on Microblaze soft core Processor and also their implementations on XC6VLX240t FPGA using Verilog Hardware Description language. This paper also gives a comparison of the issues related to the hardware and software implementations of the two cryptographic algorithms.

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