A novel image encryption algorithm based on synchronized random bit generated in cascade-coupled chaotic semiconductor ring lasers

ARM-Embedded Implementation of a Novel Color Image Encryption and Transmission System Based on Optical Chaos

“…[22], this paper can resist differential attack better owing to larger NPCR and UACI, and nearer to ideal values than Refs. [21], [23], [34], [35]. Therefore our system has a good capacity to endure the differential attack.…”

“…Hence, the chaotic signal has natural concealment and unpredictability. In virtue of the excellent characteristics, chaos has been applied in almost every industry or trade: physical random bit generation [8], liquid level sensor [9], optical network security [10], intelligent image protection [11], and especially in image encryption field [12]- [14], [17]- [23]. A fast and secure symmetric image encryption scheme employed the 3D chaotic cat map to shuffle the positions of image pixels [12].…”

“…Compared to numerical simulations, hardware implementation for chaos-based secure image encryption is difficult to realize, thus some scholars attempted to implement myriad image encryption schemes on hardware platform to address this challenge, such as on advanced reduced instruction set computer machine (ARM) [18], [19], and on field-programmable gate array (FPGA) [20], [21]. Nevertheless, the aforementioned image encryption schemes are all implemented on the traditional chaotic systems, which are restricted by low speed, fast attenuation, and high implementation cost [23].…”

“…We adopted vertical-cavity surface emitting lasers (VCSELs) to constitute a fast and secure symmetric image encryption-then-transmission scheme [22]. Afterwards, a novel image encryption algorithm based on a cascade-coupled semiconductor ring lasers system was completed [23].However, the above schemes focused on theoretical research, there are almost no schemes on image encryption based on optical chaos in experiment. The direct cause behind this is that compared to numerical simulation, it is formidable to achieve hardware implementation for such a color image encryption and transmission system based on optical chaos.…”

“…In view of the fact that (a) ARMembedded platform has faster speed and lower power consumption, and that (b) the VCSEL subject to positive optoelectronic feedback (POEF) is more flexible and reliable compared with optical injection and optical feedback, we design and implement a novel color image encryption and transmission system combining the advantages of ARM-embedded platform and the VCSEL subject to POEF. Compared with the complex cascade laser system structure in the [22], [23], a VCSEL under POEF structure in this paper is more convenient, effective and cost-saving in the actual hardware implementation environment. Our system is mainly composed of three parts: the laser module, the hardware board module, and the cloud service module.…”