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The Moment I Finally Got Public Key Encryption: The Inverse Mod

The moment I got public-key encryption was when I understood a finite field, and that it was fairly simple. Even the words of “finite field” sounded grand. And when research papers started talking about a “Galois field”, I lost it a bit more. But it was really simple. The numbers were just groups of numbers, and where one group of numbers mapped to another group, and that these…

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