Title :
Collision in phase truncation based asymmetric cryptosystem in Fresnel domain
Author :
Mehra, Isha ; Rajput, Sudheesh K. ; Nishchal, Naveen K.
Author_Institution :
Dept. of Phys., Indian Inst. of Technol. Patna, Patna, India
Abstract :
We propose collision in asymmetric cryptosystem based on phase-truncated Fresnel transform. An arbitrary image can be generated from ciphertext or watermark embedded in a host image with the help of phase retrieval algorithm. Computer simulation results support the idea of the proposed collision.
Keywords :
Fourier transforms; cryptography; image retrieval; image watermarking; optical images; arbitrary image generation; arbitrary image watermarking; asymmetric cryptosystem; ciphertext; collision; phase retrieval algorithm; phase truncated Fresnel transform;
Conference_Titel :
Fiber Optics and Photonics (PHOTONICS), 2012 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4673-4718-1
