Chosen-plaintext attack on lensless double-random phase encoding in the Fresnel domain.
We demonstrate a method of chosen-plaintext attack on lensless double-random phase encoding (L-DRPE) in the Fresnel domain. With this attack an opponent can access two encryption keys with help of the impulse functions as chosen plaintexts. This shows that a lensless optical encryption scheme based on DRPE is vulnerable to chosen-plaintext attack. Cryptoanalysis also indicates that the security worry originates from the linearity of the encryption and decryption mechanism of the L-DRPE scheme. One of the interesting features of the proposed attack is that the decryption process is lossless. Numerical simulations show good agreement with theoretical analysis.
Peng
Xiang
X
Institute of Optoelectronics, Shenzhen University, 518060 Shenzhen, China. xpeng@szu.edu.cn
Wei
Hengzheng
H
Zhang
Peng
P