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arXiv · 1308.0219

Instruction sequence expressions for the secure hash algorithm SHA-256

J. A. Bergstra·C. A. Middelburg
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Abstract

The secure hash function SHA-256 is a function on bit strings. This means that its restriction to the bit strings of any given length can be computed by a finite instruction sequence that contains only instructions to set and get the content of Boolean registers, forward jump instructions, and a termination instruction. We describe such instruction sequences for the restrictions to bit strings of the different possible lengths by means of uniform terms from an algebraic theory.

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J. A. Bergstra, C. A. Middelburg. 2013-08-01. Instruction sequence expressions for the secure hash algorithm SHA-256. https://arxiv.org/abs/1308.0219

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