XML Security: A Who's Who
Besides being able to use standard methods of encryption when transmitting XML documents, the W3C and IETF propose a standard for encrypting the XML data and tags within a document. This would let you encrypt portions of a document, with the idea that only sensitive information needs to be protected. Encrypting portions of a document with different keys would allow you to distribute the same XML document to various recipients, but the recipients would only be able to decrypt the parts relevant to them.
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