An information security method that uses a digital holographic technique is presented. An encrypted image is stored as a digital hologram. The decryption key is also stored as a digital hologram. The encrypted image can be electrically decrypted by use of the digital hologram of the key. This security technique provides secure storage and data transmission. Experimental results are presented to demonstrate the proposed method.
© 2000 Optical Society of America
(070.4560) Fourier optics and signal processing : Data processing by optical means
(200.3050) Optics in computing : Information processing
(200.4740) Optics in computing : Optical processing
Bahram Javidi and Takanori Nomura, "Securing information by use of digital holography," Opt. Lett. 25, 28-30 (2000)