Field-level encryption protects sensitive values inside a record, not just the record itself. Each field—email, SSN, credit card number—carries its own encryption at write time. Even if the database leaks, the raw values stay unreadable without proper keys.
An identity-aware proxy (IAP) controls access to those keys through identity verification. It sits between the user and the service, authenticating via SSO, OAuth, or other IAM providers. Once identity is confirmed, it enforces fine-grained policies before allowing any interaction with decrypted data.
When you combine field-level encryption with an IAP, you get a layered defense:
- Data is encrypted per field with unique keys.
- Access to keys is brokered only through authenticated identities.
- Role-based and context-aware rules determine if any decryption happens.
This pairing solves common gaps in traditional network security. Attackers breaching the perimeter meet ciphertext. Insiders without the right role see nothing but protected fields. Audit logs from the IAP show exactly who touched what, and when. With proper key management—rotating often, isolating storage, avoiding hard-coded secrets—the system minimizes the blast radius of any compromise.