Quantum cryptography concentrates on the solution of cryptography that is imperishable due
to the reason of fortification of secrecy which is applied to the public key distribution of …

This paper presents a new modification of the Twofish algorithm for strengthening security.
This is done by using two additional control keys during 16 rounds of the standard Feistel …

This paper proposes a new modification to the AES in order to ensure a high-level security.
This is accomplished by replacing the binary Exclusive OR (XOR) operation in each add …

Engineering and Technology Journal A Modification on Key Stream Generator for RC4
Algorithm Page 1 Engineering and Technology Journal Vol. 38, Part B (2020), No. ٠٢, Pages …

One of the most commonly used symmetric encryption methods is the Data Encryption
Standard (DES), but it has a number of flaws. For instance, the encryption method only …

In recent years, the need to develop encryption algorithms has led to an increase in the
working and efficiency of algorithms to protect the transmission and reception of information …

Steganography is the art of hiding data into a media in such a way that the presence of data
can't be detected when the communication is taking place. This paper provides a review of …

This paper presents two image encryption methods which aim to improve the CAST 128-bit
algorithm by increasing the security level of encrypted images. The first improvement uses a …

In this paper, cellular automata (CAs) are used to design a symmetric key cryptography
system based on Bluefish algorithm, CAs are applied to generate a multiple pseudo-random …

Blowfish is a block cypher algorithm used in many applications to enhance security, but it
includes several drawbacks. For example, the mix between the key and data is limited. This …