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Ecto.Changeset.cast/3 whitelists permitted fields and coerces types, blocking mass-assignment attacks by construction — but it silently drops unknown keys and does no business validation. Here's how to use it well.
Learn how to implement the Principle of Least Privilege in Deno using fine-grained permission flags to secure your scripts against compromised dependencies.
Learn how Vyper implements native overflow protection and bounds checking to prevent common smart contract vulnerabilities without needing external libraries.
Authorization codes travel through browser redirects and can be intercepted. PKCE makes a stolen code useless — here's the mechanics, a verifiable worked example, and why it belongs on confidential clients too.
A decision guide for configuring TLS protocol versions and cipher suites in OpenSSL 3.x: enable TLS 1.2 and 1.3 only, understand how cipher selection differs between versions, deploy dual RSA/ECDSA certificates, and validate with concrete openssl commands.
Vyper makes overflow and underflow protection mandatory — no opt-out, no annotations. Here's what that costs in gas, what it buys in auditability, and when the trade-off matters.
Learn how Arch Linux’s Pacman enforces GPG signature verification, the minimal components involved, and how to maintain and troubleshoot the keyring.
Vyper’s checked arithmetic and explicit reentrancy lock reduce common smart‑contract bugs. A minimal vault example shows how default safety can replace Solidity’s opt‑in libraries.
Reentrancy attacks can drain a contract’s funds. The Checks‑Effects‑Interactions (CEI) pattern is a tried‑and‑true way to stop them. This post walks through a concrete withdraw example, shows how CEI works, and explains its limits and when to add a mutex.
ecto
vyper
openssl
archlinux
solidity