Changing the master key for two or more adapters that have the same master key, with shared CCA key storage

Because the verification pattern of the current master key (CMK) is stored in a header in key storage, changing the master key for a configuration of multiple adapters required extra care in prior releases.

Starting with the CCA 6.0 host library, the master key verification pattern in the key storage header is not checked with the purpose of allowing or disallowing the use of an adapter. Therefore, the old workaround ( change the master key for one card, move key storage files to a temporary location, change the master key for the other cards, move the key storage files back), is no longer needed. There is no change to the format of the key storage files themselves, the change is only to the key storage handling in the CCA host library.