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For example, whitespace inside an XML Element is not syntactically significant, so that <Elem > is syntactically identical to <Elem>. Since the digital signature ensures data integrity, a single-byte difference would cause the signature to vary.
However, some file signatures can be recognizable when interpreted as text. In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available ...
XAdES-B-LT (Signature with Long Term Data), Certificates and revocation data are embedded to allow verification in the future even if their original source is not available. XAdES-B-LTA (Signature with Long Term Data and Archive timestamp), By using periodical timestamping (e.g. each year) compromising is prevented which could be caused by ...
One of the purposes of an electronic signature is to secure the data that it is attached to it from being modified. This can be done by creating a dataset that combines the signature with its signed data or to store the detached signature to a separate resource and then utilize an external process to re-associate the signature with its data.
XML Schema (XSD): SAML assertions and protocols are specified (in part) using XML Schema. XML Signature: Both SAML 1.1 and SAML 2.0 use digital signatures (based on the XML Signature standard) for authentication and message integrity.
In point-to-point situations confidentiality and data integrity can also be enforced on Web services through the use of Transport Layer Security (TLS), for example, by sending messages over HTTPS. WS-Security, however, addresses the wider problem of maintaining integrity and confidentiality of messages until after a message is sent from the ...
XPath is widely used in other core-XML specifications and in programming libraries for accessing XML-encoded data. XQuery (XML Query) is an XML query language strongly rooted in XPath and XML Schema. It provides methods to access, manipulate and return XML, and is mainly conceived as a query language for XML databases. XML Signature defines ...
CMS is a general framework for electronic signatures for various kinds of transactions like purchase requisition, contracts or invoices. [2] CAdES specifies precise profiles of CMS signed data making it compliant with the European eIDAS regulation (Regulation on electronic identification and trust services for electronic transactions in the internal market).