Complete Guide to Text Cryptography & Data Security
Why Proper Encryption Matters
- 🔒 256-bit AES military-grade protection
- 📈 95% of data breaches involve weak encryption
- ⚖️ GDPR/HIPAA compliance requirements
Did You Know?
Base64 increases data size by 33%
Encryption Methods Comparison
Method | Security Level | Use Case | Speed |
---|---|---|---|
AES-256 | Military | Sensitive data | Fast |
RSA-4096 | Bank-grade | SSL/TLS | Slow |
SHA-256 | One-way hash | Passwords | Instant |
Security Best Practices
🔑 Key Management
- Use hardware security modules
- Rotate keys quarterly
🚨 OWASP Recommendations
- Validate input formats
- Prevent padding oracle attacks
📜 Compliance
- GDPR Article 32
- PCI DSS 3.2.1
Real-World Applications
🔐 Password Storage
SHA-256(salt + password)
Always salt before hashing
📨 Secure Messaging
AES-256-GCM encryption
With HMAC authentication
💳 Payment Processing
PCI DSS compliant tokens
Tokenization vs encryption
Encryption Implementation Checklist
Critical: Never store encryption keys in code!
- Choose FIPS 140-2 validated algorithms
- Use TLS 1.3 for data in transit
- Implement HSM for key storage
- Regular penetration testing
- Audit third-party crypto libraries
FAQ: Text Cryptography
Encoding (Base64/Hex) is for data transfer, encryption (AES) provides security.
Base64 != Encryption
Article 32 mandates encryption of personal data using state-of-the-art methods like AES-256 with proper key management.