Design of Multimode Block Cryptosystem for Network Security 


Vol. 28,  No. 11, pp. 1077-1087, Nov.  2003


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  Abstract

In this paper, we proposed an architecture of a cryptosystem with various operating modes for the network security and implemented in hardware using the ASIC library. For configuring a cryptosystem, the standard block ciphers such as AES, SEED and 3DES were included. And the implemented cryptosystem can encrypt and decrypt the data in real time through the wired/wireless network with the minimum latency time (minimum 64 clocks, maximum 256 clocks). It can support CTR mode which is widely used recently as well as the conventional block cipher modes such as ECB, CBC and OFB, and operates in the multi-bit mode (64, 128, 192, and 256 bits). The implemented hardware bas the expansion possibility for the other algorithms according to the network security protocol such as IPsec and the included ciphering blocks can be operated simultaneously. The self-ciphering mode and various ciphering mode can be supported by the hardware sharing and the programmable data-path. The global operation is programmed by the serial communication port and the operation is decided by the control signals decoded from the instruction by the host. The designed hardware using VHDL was synthesized with Hynix O.25um CMOS technology and it used the about 100,000 gates. Also we could assure the stable operation in the timing simulation over 100MHz using NC-verilog.

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  Cite this article

[IEEE Style]

Y. Seo, S. Park, S. Choi, Y. Jeong, D. Kim, "Design of Multimode Block Cryptosystem for Network Security," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 11, pp. 1077-1087, 2003. DOI: .

[ACM Style]

Young-Ho Seo, Sung-Ho Park, Sung-Soo Choi, Yong-Jin Jeong, and Dong-Wook Kim. 2003. Design of Multimode Block Cryptosystem for Network Security. The Journal of Korean Institute of Communications and Information Sciences, 28, 11, (2003), 1077-1087. DOI: .

[KICS Style]

Young-Ho Seo, Sung-Ho Park, Sung-Soo Choi, Yong-Jin Jeong, Dong-Wook Kim, "Design of Multimode Block Cryptosystem for Network Security," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 11, pp. 1077-1087, 11. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880