Methods and apparatus for hardware normalization and...

Electrical computers and digital processing systems: support – Data processing protection using cryptography

Reexamination Certificate

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C713S192000, C708S205000

Reexamination Certificate

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07062657

ABSTRACT:
Methods and apparatus are provided for efficiently normalizing and denormalizing data for cryptography processing. The normalization and denormalization techniques can be applied in the context of a cryptography accelerator coupled with a processor. Hardware normalization techniques are applied to data prior to cryptography processing. Context circuitry tracks the shift amount used for normalization. After cryptography processing, the processed data is denormalized using the shift amount tracked by the context circuitry.

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