A modification detection code (MDC) can be used to provide a form of support for data integrity.

Use the MDC generate callable service to generate a 128-bit modification detection code (MDC) for an application-supplied text string.

The returned MDC value should be securely stored and/or sent to another user. To validate the integrity of the text string at a later time, the MDC generate callable service is again used to generate a 128-bit MDC. The new MDC value is compared with the original MDC value. If the values are equal, the text is accepted as unchanged.