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http://dx.doi.org/10.3807/KJOP.2013.24.5.262

Optical CBC Block Encryption Method using Free Space Parallel Processing of XOR Operations  

Gil, Sang Keun (Department of Electronic Engineering, The University of Suwon)
Publication Information
Korean Journal of Optics and Photonics / v.24, no.5, 2013 , pp. 262-270 More about this Journal
Abstract
In this paper, we propose a modified optical CBC(Cipher Block Chaining) encryption method using optical XOR logic operations. The proposed method is optically implemented by using dual encoding and a free-space interconnected optical logic gate technique in order to process XOR operations in parallel. Also, we suggest a CBC encryption/decryption optical module which can be fabricated with simple optical architecture. The proposed method makes it possible to encrypt and decrypt vast two-dimensional data very quickly due to the fast optical parallel processing property, and provides more security strength than the conventional electronic CBC algorithm because of the longer security key with the two-dimensional array. Computer simulations show that the proposed method is very effective in CBC encryption processing and can be applied to even ECB(Electronic Code Book) mode and CFB(Cipher Feedback Block) mode.
Keywords
Optical encryption; Optical XOR logic; Cipher block chaining(CBC); Free-space parallel processing;
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Times Cited By KSCI : 1  (Citation Analysis)
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