In this paper, it is proved that the group generated by Bass units contains a subgroup of finite index in central <mml:mi class="M...

A new digital image encryption method based on fast compressed sensing approach using structurally random matrices and Arnold transform is proposed. Considering the natural images to be compressed in any domain, the fast compressed sensing based approach saves computational time, increases the quality of the image and reduces the dimension of the digital image by choosing even 25 % of the measu...

We have evaluated the practical feasibility of implementing part of a molecular codebreaker, a DNA computer that uses a known-plaintext attack to recover an encryption key. Molecular biology techniques such as ligation, gel electrophoresis, polymerase chain reaction (PCR), and graduated PCR were found to be feasible but currently have some limitations such as error accumulation. A so-called “er...

For every prime number p ≥ 3 p\geq 3 and intege...

Phase-only spatial light modulators (SLMs) are widely used in holographic display applications, including holographic image projection (HIP). Most phase computer generated hologram (CGH) calculation algorithms have an iterative structure with a high computational load, and also are prone to speckle noise, as a result of the random phase terms applied on the desired images to mitigate the encodi...

Abstract DNA has recently been investigated as a possible medium concerning ultra-compact information storage and ultra-scale computation. The development of secure image encryption systems received certain effective new direction from chaos-based cryptographic algorithms. This paper proposes novel algorithm, 2DNALM , based on double-dynamic sequence chaotic 2D logistic map. three phases regard...

We demonstrate content-addressable holographic data storage with security using random phase encoding in the Fresnel domain. The phase-based data pages are encrypted using a random phase mask in the Fresnel domain, and recorded on a photorefractive LiNbO3: Fe crystal using angular multiplexing. While content-searching through this database, the correct random phase mask and its position are cri...