Secure Image Transmission Using Chaotic-Enhanced Elliptic Curve Cryptography

Abstract

In this paper, a novel scheme for secure and real time image transmission is introduced. The scheme uses a block-based elliptic curve (BBEC) public key encryption as a first stage of encryption so it solves the key distribution and management problem of symmetric key encryption in an efficient method. Then the security of first stage BBEC encryption is enhanced through a second stage of encryption which XOR the BBEC first stage output with a pseudo random sequence generated by a new designed multi chaotic pseudo random generator STH. It merges Sine, Ten and Henon maps (STH) and so it has five secret control parameters which increase the key space and hence the scheme security against brute force attacks. Both the key of the first stage BBEC image encryption and the control parameters of the second stage STH depend on two parts: EC Diffie-Hellman shared secret key and the input plain image itself which provides a good randomness and achieves a strong resistance against chosen plaintext attacks. After the two stages of encryption, the encrypted image is digitally signed in an efficient method to achieve integrity, authentication and non-repudiation. The results prove that the proposed scheme is more secure and faster than some other recent EC based schemes. It has low correlation, huge key space; key-dependent pixel value replacement and can resist statistical, differential and noise attacks.

JPEG Images Encryption Scheme Using Elliptic Curves and A New S-Box Generated by Chaos

“…There are research works that show that the elliptic curves such as those described in this paper are robust and adequate for the development of safe systems [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Figure 1 presents the complete algorithm for the search of the elliptic curves to be used in this research.…”

“…Finally, using a genetic algorithm based on DNA sequences, diffusion is applied to the previously obtained output. In [11], the authors propose an encryption scheme in two scenarios; both use an Elliptic Curves-Diffie-Hellman protocol and another key generated from the SHA-256 of the input image. Furthermore, in the encoding process, a triple chaotic STH map is used, and a digital signature is added to verify its origin before being decrypted.…”

Cryptosystem Based on the Elliptic Curve With a High Degree of Resistance to Damage on the Encrypted Images

“…(10). It follows that the probability of finding the generating element is 1 4 , so the failure probability is 3 4 . Using the binomial distribution, the total fail probability considering 32 threads is presented in Eq.…”

A Novel Approach based on Compressive Sensing and Fractional Wavelet Transform for Secure Image Transmission

“…In this paper, a joint compression and encryption algorithm is developed with the use of compressive sensing, chaotic map, FrWT and random pixel exchange [19]. A hybrid chaotic sine-tent-hénon (STH) [20] map is used to create the random measurement matrix. Then the CS technique is applied to ensure the initial encryption and compression.…”