Tokenization Model with External IV

The External IV value is set as a new parameter when calling protect, unprotect or reprotect API from the client application.

The following example explains how the tokenization is performed with the External IV defined. As mentioned before, the main characteristic of the External IV feature is obtaining different outputs for the same input. To have different outputs, you need to specify different IVs.

Note: The External IV is used, prior to protection, as input to modify the data to protect. The External IV is ignored when using encryption.