Message-Level Encryption Keys

Message-Level Encryption keys are required to send MLE encryption to message between the merchant and the
Cybersource
. To create an MLE key, go to the
Business Center
.
Key information:
  • Message-level encryption keys expire after 3 years.
  • Security keys can be used to make any request, including payments. Treat your security keys as you would any secure password.
  • You must use separate keys for the test and production environments.