Bit-based cube rotation for text encryption

Comments on “An Image Encryption Scheme Based on Rotation Matrix Bit-Level Permutation and Block Diffusion”

Recently, an image encryption scheme based on rotation matrix bit-level permutation and block diffusion was proposed [Y Zhang, D Xiao. Commun Nonlinear Sci Numer Simulat. 2014, 19:74-82]. In this paper, this image encryption scheme was studied in detail and its defects of low encryption speed and weak security were pointed out. This scheme with one round was crypt-analyzed successfully with the...

An Image Encryption using Block based Transformation and Bit Rotation Technique

Along with the rapid increasing growth of computer and network technologies, images are being transmitted more and more frequently. Security of image is a big issue. Image information is lively and visual, and has been an important means of expressing information of person. There are many encryption algorithm had been available each one having some strength and weakness. In this paper we presen...

Key Rotation for Authenticated Encryption

A common requirement in practice is to periodically rotate the keys used to encrypt stored data. Systems used by Amazon and Google do so using a hybrid encryption technique which is eminently practical but has questionable security in the face of key compromises and does not provide full key rotation. Meanwhile, symmetric updatable encryption schemes (introduced by Boneh et al. CRYPTO 2013) sup...

Bit-level based secret sharing for image encryption

A Novel Image Encryption Using an Integration Technique of Blocks Rotation Based on the Magic Cube and the AES Algorithm

In recent years, several encryption algorithms have been proposed to protect digital images from cryptographic attacks. These encryption algorithms typically use a relatively small key space and therefore, provide safe, especially if they are of a dimension. In this paper proposes an encryption algorithm for a new image protection scheme based on the rotation of the faces of a Magic Cube. The o...