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  2. Office Open XML - Wikipedia

    en.wikipedia.org/wiki/Office_Open_XML

    The Open Packaging Conventions (OPC), for the package model and physical package, is defined and used by various document types in various applications from multiple vendors. It defines core properties, thumbnails, digital signatures, and authorizations & encryption capabilities for parts or all of the contents in the package.

  3. XML Signature - Wikipedia

    en.wikipedia.org/wiki/XML_Signature

    The result is compared to the recorded DigestValue; if they do not match, validation fails. Signature Validation: The SignedInfo element is serialized using the canonicalization method specified in CanonicalizationMethod, the key data is retrieved using KeyInfo or by other means, and the signature is verified using the method specified in ...

  4. Digital signature - Wikipedia

    en.wikipedia.org/wiki/Digital_signature

    A digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents. A valid digital signature on a message gives a recipient confidence that the message came from a sender known to the recipient. [1] [2]

  5. Electronic signature - Wikipedia

    en.wikipedia.org/wiki/Electronic_signature

    An electronic signature, or e-signature, is data that is logically associated with other data and which is used by the signatory to sign the associated data. [1] [2] [3] This type of signature has the same legal standing as a handwritten signature as long as it adheres to the requirements of the specific regulation under which it was created (e.g., eIDAS in the European Union, NIST-DSS in the ...

  6. XAdES - Wikipedia

    en.wikipedia.org/wiki/XAdES

    An electronic signature that has been created in compliance with eIDAS has the same legal value as a handwritten signature. [2] An electronic signature, technically implemented based on XAdES has the status of an advanced electronic signature. [4] This means that it is uniquely linked to the signatory; it is capable of identifying the signatory;

  7. Microsoft Office 2010 - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_2010

    Additional Group Policy settings for File Block functionality in Excel, PowerPoint, and Word. [12] Cryptography improvements including support for Cryptography API: Next Generation in Access, Excel, InfoPath, OneNote, PowerPoint, and Word; Suite B support; and integrity validation of encrypted files. [12] Document time stamping of digital ...

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