Security Reference Tables

Quick reference data for security professionals, developers, and privacy-conscious users.

• Password Requirements by Website — Min length, character rules for popular sites
• Hash Algorithm Comparison — MD5, SHA-1, SHA-256, SHA-512
• ASCII Code Reference — Decimal, hex, and character for all 128 ASCII codes
• Special Characters for Passwords — Symbols and compatibility notes
• 2FA Methods Comparison — Security and convenience ratings
• Password Entropy Reference — Entropy by length and character set
• Common Password Patterns to Avoid — Patterns hackers exploit
• Password Manager Comparison — Features, pricing, and platform support
• Encryption Standards Comparison — AES, RSA, ChaCha20, and more
• Major Data Breaches Timeline — History of significant security incidents
• SSL Certificate Types — DV, OV, EV, and Wildcard compared
• Phishing Indicators Checklist — URL red flags and social engineering signs
• VPN Protocols Comparison — WireGuard, OpenVPN, IKEv2, and more
• OAuth vs SAML Comparison — Use cases and implementation differences
• Security Key Comparison — YubiKey, Google Titan, and FIDO2 devices