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Secure XML: The New Syntax for Signatures and Encryption by Kitty Niles, Donald E. Eastlake

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1.2. The Need for Secure XML

Many XML uses today need security, particularly in terms of authentication and confidentiality. Consider commercial transactions. It should be clear why purchase orders, payments, delivery receipts, contracts, and the like need authentication. In many cases, particularly when the transaction involves multiple parties, different parts of a message need different kinds of authentication for different recipients. For example, the payment portion of an order from a customer to a merchant could be extracted and sent to a payment clearing system and then to the customer's bank. Likewise, court filings, press releases, and even personal messages need authentication as a protection against forgery.

Confidentiality is also ...

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