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XML is expected to facilitate Internet B2B messaging because of its simplicity and flexibility. One big concern that customer may have in doing Internet B2B messaging is security. Therefore considering some security features in XML such as element-wise encryption, access control and digital signature that are beyond the capability of the transport-level security protocol such as SSL is of interest. We describe element-wise encryption of XML documents by performing some cryptographic transformations on it. For this reason, XSLT (Extensible Stylesheet Language Transformations) may well have sufficient functionality to perform all reasonable cryptographic transformations.
In this paper we implement element wise encryption operation in the document using XSLT. Extension functions of XSLT are made use to enhance the abilities of XSLT to include the encryption and decryption functions.