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I have some data in a non-XML format (could be any data such as a JPEG, word processor, database or spreadsheet file). How do I sign it?

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I have some data in a non-XML format (could be any data such as a JPEG, word processor, database or spreadsheet file). How do I sign it?

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• If the data is addressable by a URI, you could create a detached signature. The SignedInfo Reference would include a URI to the data. • Alternately, if you have a copy of the data in some temporary file or memory buffer, you can put the data in an enveloping signature. The data must be base-64 encoded before putting it an Object element in Signature (because it is not XML).

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