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12

ASAP
2000
IEEE

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Bit Permutation Instructions for Accelerating Software Cryptography

13 years 9 months ago

Bit Permutation Instructions for Accelerating Software Cryptography

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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

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Arbitrary N-bit Permutations | Arbitrary Permutation | ASAP 2000 | Hardware | Instruction |

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Added	30 Jul 2010
Updated	30 Jul 2010
Type	Conference
Year	2000
Where	ASAP
Authors	Zhijie Shi, Ruby B. Lee

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