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Using APPC to Communicate with Other Systems › APPC Security › Conversation Level Security

Conversation Level Security

Conversation level security is used to verify the identity of the partner transaction program. The relevant security information (for example, user ID and password) is sent in the attach request and is verified by the receiving LU. If the correct security information is not supplied the request is rejected.

A TCT is used to define the level of conversation security required by a given transaction. When an NCL procedure issues an allocation request the TCT entry is used to determine the level of security information that needs to be included in the attach request to be sent to the remote LU.