DigiDoc

<h2 id="technical-description">Technical description</h2>
<p>DigiDoc container contains actual files and <a href="/facts/Metadata/qt35z79C">metadata</a>, including a <a href="/facts/Hash_function/rk6MlCt3">hash</a> that represents those files. When signing, software sends content hash using standardised <a href="/facts/PKCS_11/LLtvbEfb">PKCS 11</a> interface to the user's id-card. After verifying the user's PIN, id-card signs the hash internally and returns a signature which is then stored into DigiDoc container. 
</p><p>During the signing, the certificate validity of each signing party is checked, and a signed timestamp is retrieved, using an <a href="/facts/OCSP/0SuMER8c">OCSP</a> service. The signed timestamp makes it possible to prove later at what time a document was signed (as the timestamp is derived from the document hash) and that each signing certificate was not in <a href="/facts/Certificate_revocation_list/JSP12aR0">certificate revocation list</a> at the time of signing. Any signatures prior to the revocation are still valid (therefore, documents do not have to be resigned when the user receives new certificates).
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<h2 id="asic-e">ASiC-E</h2>
<p>ASiC-E (<i><a href="/facts/Associated_Signature_Containers/kg5z6yaH">Associated Signature Containers</a></i>) and its <a href="/facts/Associated_Signature_Containers/kg5z6yaH">extended</a> variant is the latest DigiDoc container format. Used <a href="/facts/Filename_extension/cJgfAym4">file extension</a> is .asice.
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<h2 id="bdoc">BDOC</h2>
<p>BDOC (<i>Binary Document</i>), of which the latest version is 2.1, is based on <a href="/facts/ETSI/8rJbbhPg">ETSI</a>'s ASiC signature container standards. It is official Estonian national standard <i>EVS 821:2014</i>.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> Files use the .bdoc file extension.
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<h2 id="ddoc">DDOC</h2>
<p>DDOC (<i>Digical document</i>) is the first generation DigiDoc format. Files use the .ddoc file extension.
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<h2 id="software">Software</h2>
<p>The most widely used application is the qDigiDoc graphical desktop software that runs on <a href="/facts/Microsoft_Windows/bwhAhuSL">Microsoft Windows</a>, <a href="/facts/Apple_Mac_OSX/Y93vVpTm">Apple Mac OSX</a> and on various <a href="/facts/Linux_distribution/0vVl4N4f">Linux distributions</a>. qDigiDoc is <a href="/facts/Open_Source_Software/HzTaB8E9">Open Source Software</a> that can be freely downloaded and installed. Applications also exist for Apple iPad tablet devices and Windows phones.
</p><p>Currently <a href="/facts/Estonia/PVjB16TI">Estonian</a>- and <a href="/facts/Finland/G5Ak6T91">Finnish</a> government issued cards work with qDigiDoc 3.x and later versions. 
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<ul><li><a href="https://installer.id.ee">installer.id.ee</a> qDigiDoc home page.</li>
<li><a href="https://web.archive.org/web/20150317063443/https://itunes.apple.com/fi/app/digidoc/id501943091">itunes.apple.com - DigiDoc for Apple iPad tablets</a></li>
<li><a href="http://www.windowsphone.com/en-us/store/app/digidoc/8141b0a2-9ff7-4e68-8501-a9a081050e73">windowsphone.com - DigiDoc for Windows phone</a></li></ul>
<h2 id="software-libraries">Software libraries</h2>
<p>Multiple programming languages are supported to create applications and services utilizing DigiDoc-format, including <a href="/facts/C%2B%2B/Et0F2qn9">C++</a>, C, Java, <a href="/facts/.NET/PDMQdfFu">.NET</a>, 
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<ul><li><a href="http://www.id.ee/?lang=en&id=36484">libdigidocpp</a> c++ library</li>
<li><a href="http://www.id.ee/?lang=en&id=35782">libdigidoc</a> C library</li>
<li><a href="http://www.id.ee/?lang=en&id=36972">digidoc4j</a> Java library</li></ul>
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Estonian_identity_card/4Vl0uxe9">Estonian identity card</a>
<ul><li><a href="/facts/Digital_signature_in_Estonia/6H2Vhln5">Digital signature in Estonia</a></li></ul></li>
<li><a href="/facts/Associated_Signature_Containers/kg5z6yaH">Associated Signature Containers</a></li>
<li><a href="/facts/Finnish_identity_card/CB0yogAV">Finnish identity card</a></li></ul>

<h2 id="external-links">External links</h2>
<ul><li><a href="https://id.ee/?lang=en&id=">id.ee - The World of DigiDoc</a></li>
<li><a href="https://id.ee/?lang=en&id=36110">id.ee - BDOC2.1 – new Estonian national standard on digital signatures</a></li>
<li><a href="https://id.ee/?lang=en&id=30486">id.ee - DigiDoc libraries</a></li>
<li><a href="https://installer.id.ee">installer.id.ee</a> qDigiDoc home page.</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>ria.ee Public Key Infrastructure PKI Archived 2015-02-24 at the Wayback Machine Competences of RIA: Is responsible for the functioning, development and management of the ID card base software. Is responsible for the mutual capacity of international electronic identities or the cross-country functioning, development and management of software solutions. Participates in work groups and in the development of the state’s PKI. Assures the existence of the user interface service of the ID card base software (www.id.ee). Referred at 2015-02-24 <a href="https://www.ria.ee/en/?id=27307" target="_blank">https://www.ria.ee/en/?id=27307</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
<li id="fn:2"><p>evs.ee EVS 821:2014 - BDOC Format for Digital Signatures The present document defines XML formats for advanced electronic signatures that remain valid over long periods and incorporates additional useful information for common use cases. This includes evidence to its validity even if the signer or verifying party later attempts to deny (repudiates) the validity of the signature. Referred: 2016-04-13 <a href="https://www.evs.ee/products/evs-821-2014" target="_blank">https://www.evs.ee/products/evs-821-2014</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li>
</ol>

DigiDoc open-in-new

DigiDoc