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Security Hardening Tools

Essential tools for analyzing and improving application security

Password Strength Analyzer

Analyze password strength with detailed scoring and recommendations.

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Security Headers Checker

Generate security headers (CSP, HSTS, X-Frame-Options) for your web applications.

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CORS Policy Generator

Generate CORS policy configurations for various frameworks and servers.

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JWT Decoder

Decode and inspect JWT tokens (header, payload, signature).

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Hash Identifier

Identify hash types (MD5, SHA-1, SHA-256, bcrypt, etc.) from hash strings.

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SSL Certificate Decoder

Decode and display SSL certificate information from PEM format.

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Secret Pattern Scanner

Scan text for potential secrets (API keys, passwords, tokens).

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Encryption Strength Guide

Reference guide for encryption algorithms and recommended key sizes.

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About Security Hardening

Security hardening is the process of securing a system by reducing its attack surface and implementing security best practices. This collection of tools helps developers and security professionals analyze, test, and improve application security.

Key Security Principles

Defense in Depth

Implement multiple layers of security controls. If one layer fails, others continue to provide protection.

Least Privilege

Grant only the minimum permissions necessary for users and systems to perform their functions.

Secure by Default

Configure systems with security in mind from the start, rather than adding security as an afterthought.

Fail Securely

When systems fail, they should fail in a secure manner that doesn't expose sensitive information or create vulnerabilities.

Common Security Headers

Content-Security-Policy (CSP): Prevents XSS attacks by controlling which resources can be loaded.
Strict-Transport-Security (HSTS): Forces browsers to use HTTPS connections only.
X-Frame-Options: Prevents clickjacking attacks by controlling iframe embedding.
X-Content-Type-Options: Prevents MIME type sniffing attacks.

Password Security Best Practices

  • Use at least 12 characters (16+ recommended)
  • Mix uppercase, lowercase, numbers, and special characters
  • Avoid common words and patterns
  • Use unique passwords for each service
  • Enable multi-factor authentication (MFA)
  • Use a password manager
  • Never share passwords or store them in plain text

API Security

  • Always use HTTPS/TLS for API communication
  • Implement proper authentication (OAuth 2.0, JWT)
  • Use rate limiting to prevent abuse
  • Validate and sanitize all input
  • Implement proper CORS policies
  • Never expose sensitive data in URLs
  • Use API versioning
  • Implement proper error handling (don't leak system information)
OWASP Top 10
  1. Broken Access Control
  2. Cryptographic Failures
  3. Injection
  4. Insecure Design
  5. Security Misconfiguration
  6. Vulnerable Components
  7. Identification & Auth Failures
  8. Software & Data Integrity Failures
  9. Security Logging Failures
  10. Server-Side Request Forgery
Security Checklist
  • Enable security headers
  • Use HTTPS everywhere
  • Implement CSRF protection
  • Validate all input
  • Use parameterized queries
  • Hash passwords properly
  • Keep dependencies updated
  • Implement logging & monitoring
  • Regular security audits
  • Backup data regularly
Security Resources