John D. Cook Consulting Substack

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2026-11-01

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John Cook

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12 recent issues

• Covers: Applied mathematics, cryptography algorithms, regex performance, logic formalization for privacy policies, and AI developments.
• For: Software engineers, data scientists, cryptographers, and applied mathematicians.
• Best for: Technical professionals seeking deep insights into mathematics, computing theory, and cryptography.
• Skip if: Non-technical business leaders looking for high-level management or operational advice.

Start with

• Polar triangles, elliptic curves, and bad certificates: Explores vulnerabilities and point calculation techniques in elliptic curve cryptography.
• Elements, Factorials, Ecclesiastes, and Keys: Demonstrates why regular expressions run at different speeds across various regex engines.
• Privacy, Logic, Categories, and a Triangle: Explains using temporal logic to mathematically formalize and analyze data privacy policies.

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