Abstract
A security-enhanced optical cryptosystem is designed by introducing a time-varying nonlinear term in the encryption system based on joint transform correlator (JTC). The nonlinear term, which has no influence on the decryption of original image, is a real-valued distribution that is added to the encryption result of JTC-based encryption system. This term is not transmitted to receivers of ciphertexts, therefore, there is no need to manage and distribute it. The cryptosystem is demonstrated to be resistant to various attacks including ciphertext-only attacks, known-plaintext attacks and chosen-plaintext attacks. In addition, the cryptosystem is simple and has negligible computation cost, and the ciphertext is still non-negative real-valued, which is easy to transmit and store.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
