Protection of DPX files (transmission)

OneSpan offers two methods to protect a DIGIPASS export file (DPX) file during the transmission from OneSpan to the customer.

Standard DPX file encryption

With standard DPX file encryption, the DPX file is encrypted with a cryptographic key that resides in the software. This cryptographic key is called the software-level DPX transport key.

Double DPX file encryption

With double DPX file encryption, a DPX file is encrypted twice:

• Hardware-based. The DPX file is encrypted with a cryptographic key that resides in the HSM. This cryptographic key is called the HSM-level DPX transport key.
• Software-based. The DPX file is encrypted with a cryptographic key that resides in the software. This cryptographic key is called the software-level DPX transport key.