The restrictions for CSNBDRPG.
Support for three-key Triple-DES keys is not available in releases before
Release 5.4 and Release 6.2. Beginning with Release 5.4 and Release 6.2, this verb supports
triple-length DES keys. For a list of supported three-key Triple-DES key types beginning with
Release 5.4 and Release 6.2, see Table 1.