Research and implementation of digital signature based on XML

XML is widely applied web service system, selecting XML digital signature technology to perform digital signature for the import elements in the XML document, this can ensure data integrity in net transmission, identity verification and not disavowing.The digital signature technology based on XML is researched.The working principle of XML digital signature is expounded and the flow of digital signature and verification is analyzed, then W3C digital signature standard and the digital signature document structure are described, at last how to implement the digital signature and verification through editing program in C#.NET is presented, and a XML digital signature document about shopping is listed.