How to Maximize Software Performance of Symmetric Primitives on Pentium III and 4

Abstract. This paper discusses the state-of-the-art software optimization methodology for symmetric cryptographic primitives on Pentium III and 4 processors. We aim at maximizing speed by considering the internal pipeline architecture of these processors. This is the first paper studying an optimization of ciphers on Prescott, a new core of Pentium 4. Our AES program with 128-bit key achieves 251 cycles/block on Pentium 4, which is, to our best knowledge, the fastest implementation of AES on Pentium 4. We also optimize SNOW2.0 keystream generator. Our program of SNOW2.0 for Pentium III runs at the rate of 2.75

• Type: Journal
• Year: 2006
• Where: IEICET
• Authors: Mitsuru Matsui, Sayaka Fukuda
• Keywords: IEICET 2006, Pentium 4, Pentium III, Symmetric Cryptographic Primitives