z/OS User Exits › z/OS Server User Exits—CICS › TIRDCRYX—Server Decryption Exit › Customizing the Exit

Customizing the Exit

This exit is invoked when the cooperative buffer received from the client contains encrypted data. Decrypt the data pointed to DATA-BUFFER-PTR for the length BUFFER-SIZE bytes using the appropriate decryption algorithm. Ensure the DATA-BUFFER-PTR points to the location of the decrypted data and that the BUFFER-SIZE is updated with the correct data length. The maximum size of the decrypted data cannot exceed DECRYPTION-MAX-SIZE. Set the return code to DECRYPTION-USED.