CTGKM0595E Key alias cannot exceed 12 characters in length.
Explanation
A key alias for a set of multiple keys has a prefix that
must be 3 characters long. If you create only one key,
the value for the alias cannot exceed 12 characters.
System action
The secret key or keys are not created.
Administrator response
Specify an alias that does not exceed the character
limit. Then, try the operation again.