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Reversing a Finite Field Multiplication Optimization

blog.quarkslab.com | research | #cryptography | #reverse-engineering | #aes-gcm | #optimization | #quarkslab | #finite-fields
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Summary

Reversing an unpublished optimization for 128-bit finite-field multiplication in AES-GCM: recovering the higher-level algorithm, explaining its constants, and reusing it with other parameters.
Published
Collected

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