Confidentiality

 

A message exit at the sending end of a channel can encrypt the application data in a message and another message exit at the receiving end of the channel can decrypt the data. For performance reasons, a symmetric key algorithm is normally used for this purpose. For more information about how the symmetric key can be generated and distributed, see Confidentiality.

Headers in a message, such as the transmission queue header, MQXQH, which includes the embedded message descriptor, must not be encrypted by a message exit. This is because data conversion of the message headers takes place either after a message exit is called at the sending end or before a message exit is called at the receiving end. If the headers are encrypted, data conversion fails and the channel stops.

 

Parent topic:

Message exit

sy11290_