: Because it produces predictable output, it is more vulnerable to frequency analysis attacks. It should only be used for data that absolutely must be searchable.
The active_record_encryption_deterministic_key serves as a bridge between strict cryptographic security and pragmatic database functionality. It allows Rails applications to encrypt sensitive data while maintaining the ability to query that data efficiently. However, this power comes with the cost of vulnerability to frequency analysis. Developers must treat the deterministic key with the highest level of secrecy and strictly limit its application to fields where the trade-off between queryability and privacy is acceptable. active_record_encryption_deterministic_key
# The :secret_notes attribute will use the primary_key (randomized) encrypts :secret_notes end : Because it produces predictable output, it is