Protected key CPACF

Protected key CPACF blends the speed of CPACF with the secure key cryptography offered by the Crypto Express coprocessor feature. This function ensures the privacy of cryptographic key material when used by the CPACF for high-performance data encryption. Protected key CPACF helps ensure that key material is not visible to applications or by the operating system, maintaining the security of the key material used for the encryption operation. This capability provides better performance than secure key operations (that execute on the Crypto Express card) while providing better security than clear key operations. This function can work with the Crypto Express card to protect secure keys when they are used on the CPACF.