Security concepts explained — encryption algorithms, hashing functions, password security, OAuth 2.0, web vulnerabilities, and the OWASP Top 10.
A clear guide to Zero Trust security: the principles of never trust / always verify, micro-segmentation, identity-centric access, and practical implementation steps.
A practical guide to two-factor authentication: how TOTP works, WebAuthn and passkeys, SMS vulnerabilities, and MFA implementation best practices.
A clear guide to Single Sign-On: how SSO works, SAML vs OpenID Connect, identity federation, and practical implementation considerations.
A practical web security guide for developers: SQL injection, XSS, CSRF, SSRF, insecure auth, and OWASP Top 10 prevention techniques.
A complete guide to SQL injection: how it works, types of SQLi attacks, prevention with parameterized queries, ORM considerations, and layered defenses.
A practical guide to OAuth 2.0 and JWT: flows, token structure, verification, refresh tokens, scopes, and common security mistakes.
A deep dive into cryptographic hash functions: MD5 vs SHA-1 vs SHA-256, hash collisions, rainbow tables, salting, HMAC, and bcrypt for passwords.
A developer-friendly guide to VPNs: how tunneling works, encryption protocols, WireGuard vs OpenVPN, split tunneling, and practical use cases.
A clear explanation of HTTPS: how TLS works, what SSL certificates do, and why every site needs HTTPS.
A clear breakdown of encoding, encryption, and hashing: what they are, how they differ, when to use each, and the mistakes developers make by confusing them.
A developer's guide to password security: proper hashing with bcrypt and Argon2, entropy, secrets management, API key generation, and common mistakes to avoid.
A comprehensive guide to Cross-Site Scripting: how XSS works, the three types of XSS, prevention with output encoding and CSP, and common mistakes.
A clear comparison of AES and RSA encryption: symmetric vs asymmetric, how each works, performance, TLS hybrid encryption, and when to use each algorithm.
A practical guide to API security: authentication and authorisation, rate limiting, input validation, OWASP API Security Top 10, and common vulnerabilities.
SysCast reviews tools.fun — a comprehensive collection of 25+ web-based developer utilities.
LinuxCIO explores how tools.fun utilities complement enterprise Linux management.
CodePush guide to implementing over-the-air mobile updates using tools.fun developer utilities.