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A novel method with M-sequence code in optical code-division multiple-access (OCDMA) network, called pseudo-random number mapping/coding (PRNMC) algorithm, includes chaos equation, HCC/EHCC algorithm, two mapping methods. An approximately symmetric scheme is used to transmit and receive the secret key in private channel from encoder to decoder. By combining those algorithms appropriately, the security...
In order to overcome the impracticability of encrypting video sequence prior to compression as those done in most conventional schemes, a dynamic scrambling methodology configured with wavelength division multiple-passive optical network (WDM-PON) is proposed to implement a cross-layer video encryption scheme. Unlike the data encryption using traditional ciphers directly without compression consideration...
In order to enhance the confidentiality of AWG-based optical code division multiple access (OCDMA) scheme, the dynamic reconfigurable coding/decoding scheme based on chaos sequence is proposed to control optical switches and simple electrical shift registers. Since the chaos sequence is characterized with the property of pseudo random and maximum period time, the security mechanism of changing M-sequence...
In order to overcome vulnerability to eavesdropping of on-off-keying based OCDMA scheme, a new multi-code keying reconfiguration is presented to enhance confidentiality over two dimensional time-spreading and wavelength-hopping (2D TS/WH) optical code division multiple access (OCDMA) schemes. The time-shifted carrier-hopping prime codes (CHPCs) are proposed and assigned as signature address code....
Dynamic signature codes reconfiguration is proposed to combat with eavesdroppers to enhance confidentiality over optical code-division multiple-access (OCDMA) networks. The code reconfiguration is achieved by exclusively assigning to each user a set of M codes and randomly selecting one among them to represent each user's signature. A central node station is assumed to monitor network traffic condition...
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