Optical Implementation of Asymmetric Cryptosystem Combined with D-H Secret Key Sharing and Triple DES

다국어 초록 (Multilingual Abstract)

In this paper, an optical implementation of a novel asymmetrical cryptosystem combined with D-H secretkey sharing and triple DES is proposed. The proposed optical cryptosystem is realized by performingfree-space interconnected optical logic operations such as AND, OR and XOR which are implementedin Mach-Zehnder type interferometer architecture. The advantage of the proposed optical architectureprovides dual outputs simultaneously, and the encryption optical setup can be used as decryption opticalsetup only by changing the inputs of SLMs. The proposed cryptosystem can provide higher security strengththan the conventional electronic algorithm, because the proposed method uses 2-D array data, which canincrease the key length surprisingly and uses 3DES algorithm, which protects against “meet in the middle”attacks. Another advantage of the proposed asymmetrical cryptosystem is that it is free to change the user’stwo private random numbers in generating the public keys at any time. Numerical simulation andperformance analysis verify that the proposed asymmetric cryptosystem is effective and robust againstattacks for the asymmetrical cipher system

참고문헌 (Reference)

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