Re-entering Master Keys after they have been cleared

In these situations, the Enterprise PKCS #11 coprocessor clears the master key registers so that the master key values are not disclosed:
Although the values of the master keys are cleared, the secure keys in the TKDS are still enciphered under the cleared P11 master key. Therefore, to recover these secure keys, you must reenter the same master keys and activate the P11-MK. For security reasons, you may then want to change all the master keys.
Note: A TKE workstation is required to load key parts for the P11 master key. See Entering master key parts using TKE and the z/OS Cryptographic Services ICSF TKE Workstation User's Guide for details.