Which cryptographic token format should you use to meet these requirements?

Your company wants to determine what products they can build to help customers improve their credit scores depending on their age range. To achieve this, you need to join user information in the company’s banking app with customers’ credit score data received from a third party. While using this raw data will allow you to complete this task, it exposes sensitive data, which could be propagated into new systems.

This risk needs to be addressed using de-identification and tokenization with Cloud Data Loss Prevention while maintaining the referential integrity across the database .

Which cryptographic token format should you use to meet these requirements?
A . Deterministic encryption
B . Secure, key-based hashes
C . Format-preserving encryption
D . Cryptographic hashing

Answer: B

Explanation:

Reference: https://cloud.google.com/blog/products/identity-security/take-charge-of-your-data-how-tokenization-makes-data-usable-without-sacrificing-privacy