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