ICSF will exploit the performance of the CP Assist for Cryptographic Functions using encrypted AES and DES keys stored in the CKDS. Symmetric Key Encipher (CSNBSYE, CSNBSYE1, CSNESYE and CSNESYE1) and Symmetric Key Decipher (CSNBSYD, CSNBSYD1, CSNESYD and CSNESYD1) callable services will accept the label of a encrypted key as the key identifier.