Length-preserving encryption for database tables

Embodiments are directed to encrypting data of a database table. Embodiments receive the database table, the database table including a plurality of rows, each row including a unique primary key and at least one column of unencrypted data. Embodiments convert each unique primary key into a unique initialization vector ("IV"). For a current row, embodiments encrypt the unencrypted data using a corresponding unique IV for the row, the encrypting including length-preserving encryption. Within each column, embodiments replace the unencrypted data with the encrypted data.