Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

World Wide Web Consortium Issues XML Signature as a W3C Recommendation

15.02.2002


Joint work with IETF produces XML-based solution for digital signatures, foundation for Secure Web services



The World Wide Web Consortium (W3C) has issued XML-Signature Syntax and Processing (XML Signature) as a W3C Recommendation, representing cross-industry agreement on an XML-based language for digital signatures. A W3C Recommendation indicates that a specification is stable, contributes to Web interoperability, and has been reviewed by the W3C Membership, who favor its widespread
adoption.

"XML Signature is a critical foundation on top of which we will be able to built more secure Web services," explained Tim Berners-Lee, W3C Director. "By offering basic data integrity and authentication tools, XML Signature provides new power for applications that enable trusted transactions of all sorts."



Digital Signatures are Essential to Web Services

Digital signatures are created and verified using cryptography, the branch of applied mathematics concerned with transforming messages into seemingly unintelligible forms and then back again. Digital signatures are created by performing an operation on information such that others can confirm both the identity of the signer, and the fidelity of the information. This capability is important to a growing number of XML protocol, publishing and commerce applications.

XML Signature Combines Data Integrity with Extensibility

While there are technologies one can use to sign an XML file, XML Signature brings two additional benefits.

First, XML Signature can be implemented with and use many of the same toolkits one is using for XML applications.

Second, XML Signature can process XML as XML instead of a single large document. This means multiple users may apply signatures to sections of XML, not simply the whole document.

As more commercial applications are used to send XML documents through a series of intermediaries, the ability to sign sections of a document without invalidating other portions is invaluable, whether for invoices, orders, or applications.

One may independently sign an XML payload from the XML envelope that carries it for a short period. As a result, when you remove, add or change the protocol envelope the signature on the payload itself is still valid.

Similarly, XML Signature provides flexibility when a signed XML form is delivered to a user. If the signature were over the full XML form, any change by the user to the default form values would invalidate the original signature. XML Signature permits both the original form and user`s entries to be independently signed without invalidating the other.

And of course, while XML Signature is tailored to XML processing, it can be used to sign any data, such as a PNG image.

XML Signature Supports XML Encryption and Key Management

XML Signature serves as the foundation for other ongoing W3C work including XML Encryption, which provides a mechanism to secure parts of XML documents, and XML Key Management, which provides a simple protocol for lightweight XML applications to obtain the key necessary for signature and encryption.

IETF/W3C Brings Together Industry Experts; Public Review

The XML Signature Working Group is the first joint W3C/IETF Working Group, and is the first W3C technical Working Group to operate entirely as a public group. This provided independent developers with a clear window on the XML Signature work in all stages of development, and brought a wide range of implementation experience. XML Signature already enjoys significant support and deployment, as highlighted in the testimonials.

Participants in the joint IETF/W3C Working Group included representatives from organizations whose lead research and commercial work in the area of digital signatures and security, including Accelio, Baltimore, Capslock, Citigroup, Corsec, Georgia State University, IAIK TU Graz, IBM, Microsoft, Motorola, Pure Edge, Reuters Health, Signio, Sun Microsystems, University of Siegen, University of Waterloo, VeriSign Inc., and XMLsec.

Marie-Claire Forgue | alphagalileo
Further information:
http://www.w3.org/

More articles from Information Technology:

nachricht Satellite data for agriculture
28.07.2017 | Julius-Maximilians-Universität Würzburg

nachricht Magnetic Quantum Objects in a "Nano Egg-Box"
25.07.2017 | Universität Wien

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Abrupt motion sharpens x-ray pulses

Spectrally narrow x-ray pulses may be “sharpened” by purely mechanical means. This sounds surprisingly, but a team of theoretical and experimental physicists developed and realized such a method. It is based on fast motions, precisely synchronized with the pulses, of a target interacting with the x-ray light. Thereby, photons are redistributed within the x-ray pulse to the desired spectral region.

A team of theoretical physicists from the MPI for Nuclear Physics (MPIK) in Heidelberg has developed a novel method to intensify the spectrally broad x-ray...

Im Focus: Physicists Design Ultrafocused Pulses

Physicists working with researcher Oriol Romero-Isart devised a new simple scheme to theoretically generate arbitrarily short and focused electromagnetic fields. This new tool could be used for precise sensing and in microscopy.

Microwaves, heat radiation, light and X-radiation are examples for electromagnetic waves. Many applications require to focus the electromagnetic fields to...

Im Focus: Carbon Nanotubes Turn Electrical Current into Light-emitting Quasi-particles

Strong light-matter coupling in these semiconducting tubes may hold the key to electrically pumped lasers

Light-matter quasi-particles can be generated electrically in semiconducting carbon nanotubes. Material scientists and physicists from Heidelberg University...

Im Focus: Flexible proximity sensor creates smart surfaces

Fraunhofer IPA has developed a proximity sensor made from silicone and carbon nanotubes (CNT) which detects objects and determines their position. The materials and printing process used mean that the sensor is extremely flexible, economical and can be used for large surfaces. Industry and research partners can use and further develop this innovation straight away.

At first glance, the proximity sensor appears to be nothing special: a thin, elastic layer of silicone onto which black square surfaces are printed, but these...

Im Focus: 3-D scanning with water

3-D shape acquisition using water displacement as the shape sensor for the reconstruction of complex objects

A global team of computer scientists and engineers have developed an innovative technique that more completely reconstructs challenging 3D objects. An ancient...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

 
Latest News

New 3-D imaging reveals how human cell nucleus organizes DNA and chromatin of its genome

28.07.2017 | Health and Medicine

Heavy metals in water meet their match

28.07.2017 | Power and Electrical Engineering

Oestrogen regulates pathological changes of bones via bone lining cells

28.07.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>