Strong cryptographic algorithms have been used for securing data communication. It is
considered as one of the best tools to help people to protect their sensitive information from …

Data security is an important issue in computer networks and cryptographic algorithms are
essential parts in network security. In this paper a new block-ciphering algorithm, JEA K-128 …

Cryptography is a security technique that must be applied in both communication sides to
protect the data during its transmission through the network from all kinds of attack. On the …

In this research work, implementation of three symmetric, block encryption algorithms
namely: DES, Triple-DES and Blowfish under Linux platform is presented. A comparison is …

In this era of information technology and e-commerce security is the key aspect while
transmitting confidential information over insecure network like internet. In order to protect …

When using a symmetric encryption algorithm, specifically the AES, the Block Cipher Mode
of Operation to be used must be specified. Usually choosing the mode of operation is …

The importance of cryptography applied to security in electronic data transactions has
gained essential relevance during the last few years. Everyday many users generate and …

In this paper, we propose an improved block cipher symmetric encryption algorithm that has
the same structure of encryption and decryption. So far, conventional cryptography …

Advanced Encryption Standard (AES), also known as Rijndael, is an encryption standard
used for securing information. AES was published by NIST (National Institute of Standards …

In this paper, a pair of symmetric block ciphers has been developed for encryption and
decryption of text file. The characters in the file are represented by the ASCII codes. A …