Decryption key dialog

Enter the key that was specified as the encryption key when the program was compiled. A specified key value of less than 16 bytes will be padded to 16 bytes with x'40'. If the key contains any characters which are not invariant over all code pages, ensure that the job CCSID is the same as the job CCSID used when the program was compiled, otherwise the key may not match, and the decryption will fail. A user has three attempts to enter a valid key. If a valid key is not entered within the three attempts, then source code will not be displayed.