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2000
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Bit Permutation Instructions for Accelerating Software Cryptography

12 years 16 days ago
Bit Permutation Instructions for Accelerating Software Cryptography
Permutation is widely used in cryptographic algorithms. However, it is not well-supported in existing instruction sets. In this paper, two instructions, PPERM3R and GRP, are proposed for efficient software implementation of arbitrary permutations. The PPERM3R instruction can be used for dynamically specified permutations; the GRP instruction can be used to do arbitrary n-bit permutations with up to lg(n) instructions. In addition, a systematic method for determining the instruction sequence for performing an arbitrary permutation is described.
Zhijie Shi, Ruby B. Lee
Added 30 Jul 2010
Updated 30 Jul 2010
Type Conference
Year 2000
Where ASAP
Authors Zhijie Shi, Ruby B. Lee
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