Research Paper On Implementation Issues In Xml

Research Paper On Implementation Issues In Xml-6
An example would be when a SAML assertion is signed and then carried somewhere in a SOAP message.However, in the environment described above, problems can arise even when using Exclusive Canonicalization.The following capabilities are particularly useful. However, we have encountered a variety of issues relating to the use of XML Signature and XML Encryption both separately and in combination. While real problems in the field have been rare to date, it is our expectation that as applications begin to take advantage of the capabilities of these specifications and the ones that use them, problems will become more frequent.

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Consider signing this with Exclusive Canonicalization, including the foo prefix in the Inclusive Namespaces Prefix List.

If an intermediary introduces the use of this namespace prefix in an ancestor, then the signature will break because xmlns:foo will be canonicalized with the To Be Signed element instead of the Data element.

We have been shipping our implementations of XML Signature and XML Encryption in our products for several years now.

This paper reflects our experiences in implementing these standards, our customers experiences in using them and our experiences defining other standards which normatively reference them.

In practice, application software which understands if and where qnames have been used in content and security software responsible for performing Canonicalization are distinct layered components.

In principle it would be possible to define APIs to allow applications to specify prefixes to include in the Prefix List. For example, Canonicalization and hence a Prefix List may be associated with each element.To learn more or modify/prevent the use of cookies, see our Cookie Policy and Privacy Policy.BEA Systems is a vendor of distributed systems infrastructure software.This section describes issues relating to the use of XML Signature.Our concerns about Canonicalization Algorithms relate mostly to the handling of namespace declarations, which in fact is the primary difference between the two most commonly implemented Canonicalization Algorithms.Your access to the NCBI website at gov has been temporarily blocked due to a possible misuse/abuse situation involving your site.This is not an indication of a security issue such as a virus or attack.In any event, would be risky to assume that qnames will never be present in content when performing XML Canonicalization.The use of the Inclusive Namespaces Prefix List is intended to overcome this risk, but its use is problematic.These include SAML, XACML, Digital Signature Services, SPML, WS-Security, all developed at OASIS and the Basic Security Profile, developed at WS-I.Our uses of XML and XML security are primarily in the context of network protocols and our requirements are primarily shaped by the characteristics of such environments.


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