Secure image transmission is one of the most challenging problems in the age of
communication technology. Millions of people use and transfer images for either personal or …

In this paper, a new scheme for image encryption based on a double chaotic pseudo
random generator (DCPG), simple XOR and shift rotations operations is proposed. The …

This paper proposes several efficient techniques for multimedia encryption based on a
chaotic map. The proposed techniques use four types of chaotic maps and make …

we introduced image encryption algorithms with high sensitivity, such that even a single
alteration in a plain-text image would result in a complete transformation of the ciphered …

In the present time, Due to the rapid growth of digital communication and multimedia
application, security becomes an important issue of communication, storage and …

Image scrambling has wide application field in the protection of image information and
secret. To achieve a satisfactory level of security, this paper introduces a color image …

Digital sound security has limits on encrypting in Frequency Domain. Number Theoretic
Transform based on field (GF 2 521–1) improve and solve that problem. The algorithm for …

In open communication network, it is utmost crucial to keep sensitive information protected
from becoming vulnerable to unauthorized access. Encryption process provides high …

The new conceptions of more than one secret message and false digital image
steganography are presented in the current paper. One of the major ideas in these …

An image encryption approach is proposed in this paper. Initial random numbers are
generated by linear dynamic system which has a chaotic map**. Lorenz map can give us …