Example - Creating a FPE Data Element

Create a FPE data element.

This example shows how to create an FPE data element that is used to encrypt Plaintext Alphabet data.

To create a structured FPE data element:

  1. On the ESA Web UI, navigate to Policy Management > Data Elements & Masks > Data Elements.

  2. Click Add New Data Element.

    The New Data Element screen appears.

  3. Select Structured from Type.

  4. Enter a unique name for the data element in the Name textbox.

The maximum length of the data element name is 55 characters.

  1. Type the description for the data element in the Description textbox.

  2. Select FPE NIST 800-38G from the Method drop-down.

  3. Select a data type from the Plaintext Alphabet drop-down.

  4. Configure the minimum input length from the Minimum Input Length text box.

  5. Select the tweak input mode from the Tweak Input Mode drop-down.

    For more information about the tweak input mode, refer to the section Tweak Input in the Protection Methods Reference Guide.

  6. Select the short data configuration from the Allow Short Data drop-down.

    Note: FPE does not support data less than 2 bytes, but you can set the minimum message length value accordingly.

    For more information about length preservation and short tokens, refer to section Length Preserving in Protection Methods Reference Guide from the Legacy Documents section.

    If you are create a short data token in a policy and then deploy the policy, the Forensics displays a policy deployment warning indicating that the data element has unsupported settings.

  7. Enter the required input characters to be retained in the clear in the From Left and From Right text box.

    For more information about this setting, refer to the section Left and Right Settings in the Protection Methods Reference Guide from the Legacy Documents section.

  8. Configure any special numeric data handling request, such as Credit Card Number (CCN), in the Special numeric alphabet handling drop-down.

    For more information about handling special numeric data, refer to the section Handling Special Numeric Data in the Protection Methods Reference Guide from the Legacy Documents section.

  9. Click Save.

A message Data Element has been created successfully appears.

Last modified February 7, 2025