디지털 홀로그램을 이용한 DES 알고리즘의 암호성능 개선

Abstract

Electrical, electronic and computer industries by developing personal and business use of electronic devices is increasing rapidly. National administration, finance, healthcare, education, welfare and community throughout the computerized systems were introduced. But the computer H/W due to the development of information security concerns have increased. Accordingly, various encryption algorithms have appeared. But with the development of the computer attempts to cracking was frequent, which the DES algorithm, the algorithm is vulnerable to brute-force attack has become. The length of the secret key is limited to 56Bits the system is vulnerable to brute-force attack is abandoned. To resolve this problem, increase the length of the secret key of DES should be considered measures.

In this paper, 2 DES, 3 DES, unlike in the other algorithms can be used to mix and arrange a way to investigate. So, by applying the private key of the digital holograms is proposed to increase the length. For digital holographic images or holograms to create three-dimensional object out of the data in the form of white noise is produced. Use this information for the three-dimensional objects can be extracted, and the hologram itself is composed in the form of white noise represents the effect of encryption. 64bits of data for each pixel of a hologram that is composed of complex data. DES process before applying the hologram length of the secret key is used to increase to 184bits. Thus, due to the convergence of the hologram and the DES D (H (p, k1), k2) to create structure out of the way encryption is proposed.