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Handling Encrypted Message Buffers
In general, TMQUEUE and TMQFORWARD handle encrypted message buffers without decrypting them. However, there are situations where the /Q component needs to decrypt enqueued message buffers, as described in Compatibility/Interaction with /Q.
As mentioned in the "Compatibility/Interaction with /Q" discussion, a non-transactional tpdequeue() operation has the side effect of destroying an encrypted queued message if the invoking process does not hold a valid decryption key. Thus, application programmers need to open a decryption key for a process before the process calls tpdequeue() to retrieve an encrypted message; otherwise, the message will be lost.
For information on opening a decryption key, see Initializing Decryption Keys Through the Plug-ins and Writing Code to Receive Encrypted Messages in Using BEA Tuxedo Security.
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