Key Management Best Practices
Key management encompasses the generation, storage, distribution, rotation, and destruction of cryptographic keys. Poor key management can undermine even the strongest encryption.
Key Generation
- Use cryptographically secure random number generators
- Generate keys with sufficient length
- Use well-vetted libraries and algorithms
Key Storage
- Never hardcode keys in source code
- Use environment variables or dedicated secret managers
- Consider Hardware Security Modules (HSMs) for high-value keys
- Encrypt keys at rest
Key Rotation
- Rotate keys regularly
- Implement key versioning
- Plan for emergency rotation in case of compromise