An Optimized Rijndael Core Implementation for High-Throughput Network Interface Cards

International Journal of Computer Science and Technology Vol. 3, No. 5, May 2001 | pp. 33–40

DOI: 10.46882/2001/IJCST/000029

Research Article

Title: An Optimized Rijndael Core Implementation for High-Throughput Network Interface Cards

Names of Authors: Klaus Werner¹, Chen Wei²

Authors’ Affiliations: ¹Institute of Cyber Security, Technical University of Munich, Germany; ²School of Computer Science, Tsinghua University, Beijing, China.

Abstract:
High-speed network links require line-rate cryptographic processing to protect sensitive enterprise data packets without inducing severe system performance bottlenecks. Directly processing standard block ciphers via software layers introduces extreme packet latency and oversaturates system CPU cycles. This paper proposes a hardware-optimized, fully pipelined implementation of the Rijndael encryption standard designed for network interface hardware architectures. By restructuring the internal substitution-box transformations and consolidating matrix multiplications into an iterative lookup design, the cryptographic core reduces processing delays and gate counts. The proposed design was integrated into a programmable logic board to measure throughput speeds and chip resource utilization profiles. The empirical metrics indicate a 32.4% reduction in silicon gate usage and a 15.8% acceleration in cryptographic processing throughput relative to conventional baseline implementations. Security evaluation confirms that the core maintains robust protection against timing-analysis and power-analysis exploits while successfully meeting the line-rate constraints demanded by modern network routing matrices.

Keywords: Network Security, Cryptographic Hardware, Advanced Encryption Standard, Pipelined Architectures, Throughput Optimization, Logic Design.

Manuscript Timeline: Received: February 05, 2001; Revised: March 14, 2001; Accepted: April 08, 2001; Published: May 18, 2001.

Citation: Werner, K., & Wei, C. (2001). An Optimized Rijndael Core Implementation for High-Throughput Network Interface Cards. International Journal of Computer Science and Technology, 3(5), 33–40.

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