XML Digital Signature papers, The prospect of fully implementing legal digital signature in general commerce presents both benefits and costs.

*Institutional overhead, XML Digital Signature papers: The cost of establishing and utilizing certification authorities, repositories, and other important services, as well as assuring quality in the performance of their functions, see also electronic signature.

*Subscriber and Relying Party Costs, XML Digital Signature papers: A digital signer will require software, and will probably have to pay a certification authority some price to issue a certificate. Hardware to secure the subscriber's private key may also be advisable. Persons relying on signature software will incur expenses for verification software and perhaps for access to certificates and certificate revocation lists (CRL) in a repository. -XML Digital Signature papers

XML Digital Signature papers, the principal advantage to be gained is more reliable authentication of messages. xml signature, if properly implemented and utilized offer promising solutions to the problems of:

*Imposters, (see XML Digital Signature papers) by minimizing the risk of dealing with imposters or persons who attempt to escape responsibility by claiming to have been impersonated;

*Message integrity, by minimizing the risk of undetected message tampering and forgery, and of false claims that a message was altered after it was sent;

*Formal legal requirements, by strengthening the view that legal requirements of form, such as writing, signature, and an original document, are satisfied, since esignature are functionally on a par with, or superior to paper forms; and

*Open systems, by retaining a high degree of information security, even for information sent over open, insecure, but inexpensive and widely used channels, XML Digital Signature papers.

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