| 摘要 |
A method of controlling the processing of data, is provided comprising defining security controls for a plurality of data items, and applying individualised security rules to each of the data items based on a measurement of integrity of a computing entity to which the data items are to be made available. For example, data items 52,54,56,60 are transmitted according to specific security rules in a definitions section 50, the rules specifying how data is transferred for each field according to an assessed level of trust or integrity of the location to which the data is to be transferred. The security/usage control could be more complex to apply masking means such as an encryption key for masking and/or encrypting an item of data.
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