Chosen plaintext attack on double random-phase encoding in the Fresnel domain
Peng Xiang, Wei Heng-Zheng, Peng Zhang, (1)天津大学精密测试技术及仪器国家重点实验室，天津 300072; (2)天津大学精密测试技术及仪器国家重点实验室，天津 300072;深圳大学光电子学研究所，教育部光电子器件与系统重点实验室，深圳 518060; (3)中国建设银行总行电子银行部，北京 100032 · Acta Physica Sinica · 2007
This paper analyzes the security of double random phase encoding in fresnel domain from the viewpoint of cryptoanalysis. We demonstrate the encryption system is vulnerable to chosen-plaintext attack with a prior knowledge of diffraction distance and wavelength. With this attack an opponent can access double random phase keys with the help of the impulse functions as chosen plaintext. The significant feature of proposed attack is that the decryption process is lossless. Numerical simulations show good agreement with theoretical analysis.