| 摘要 |
Companies can save money by outsourcing processing to external third party application service providers (ASP). Where processes are performed internally on the companies network they have access to local information like internal IP addresses, directory group membership, user name and so on. This may be unavailable to external parties due to security/privacy concerns or network artefacts. The invention proposes encrypting and appending this secret data to messages to external third party servers so that they can undertake the processing tasks securely. This additional secret appendix may be embedded in the header or payload of the original message or transmitted separately and preferably does not affect the transit/utility of the original message.
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