Signatures

Mar 04, 2026 TypeScript

TypeScript Index Signatures: Dynamic Property Types

When you’re working with objects whose property names aren’t known until runtime—API responses, user-generated data, configuration files—TypeScript needs a way to type-check these dynamic structures….

Feb 09, 2025 Security

Digital Signatures: RSA and ECDSA

Digital signatures solve a fundamental problem in distributed systems: how do you prove that a message came from who it claims to come from, and that it hasn’t been tampered with? Unlike encryption…