Multi-Mode Operator for SHA-2 Hash Functions

  title={Multi-Mode Operator for SHA-2 Hash Functions},
  author={Ryan Glabb and Laurent Imbert and Graham A. Jullien and Arnaud Tisserand and Nicolas Veyrat-Charvillon},
  journal={Journal of Systems Architecture},
We propose an improved implementation of the SHA-2 hash family to include a multi-mode of operation with minimal latency and hardware requirements over the entire operator. The multi-mode architecture presented is able to perform either a SHA-384 or SHA-512 hash or to behave as two independent SHA-224 or SHA-256 operators. We also demonstrate that our architecture achieves performance comparable to separate implementations while requiring much less hardware. This could be useful for a server… CONTINUE READING
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