ESYAE-imza Kütüphaneleri

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<h1>Concepts</h1> <div class="level1"> </div> <h2>Signature Types According to Signature Structure</h2> <div class="level2"> <p> Signatures can be categorized into three classes according to the signature structure </p> <span class='np_break'> </span> <div class="table"><table class="inline"> <tr class="row0"> <th class="col0"> Enveloping<br/> </th><td class="col1"> The data takes place in the signature as XML or Base64. </td> </tr> <tr class="row1"> <th class="col0"> Enveloped<br/> </th><td class="col1"> The data contains the signature. </td> </tr> <tr class="row2"> <th class="col0"> Detached<br/> (Ayrık) </th><td class="col1"> Signature and the signed data are seperate from each other. Especially for large data this type of signature is suggested. </td> </tr> </table> <span class='np_break'> </span> </div> </div> <h2>Signature Types</h2> <div class="level2"> <span class='np_break'> </span> <div class="table"><table class="inline"> <tr class="row0"> <td class="col0"> <b>BES</b> <br/> (Basic Electronic Signature) </td><td class="col1"> The simplest form of signature with no timestamp </td> </tr> <tr class="row1"> <td class="col0"> <b>EPES</b> <br/> (Explicit Policy Based Electronic Signature) </td><td class="col1"> A special form of BES which includes policy signature information. </td> </tr> <tr class="row2"> <td class="col0"> <b>ES-T</b> <br/> (Electronic Signature with Time) </td><td class="col1 leftalign"> EST signatures are created by adding a timestamp to a BES signature. </td> </tr> <tr class="row3"> <td class="col0"> <b>ES-C</b> <br/> (Electronic Signature with Complete Validation Data References) </td><td class="col1"> It is derived from ES-T by adding references to validation data. </td> </tr> <tr class="row4"> <td class="col0"> <b>ES-X</b> <br/> (EXtended Electronic Signature) </td><td class="col1"> Similar to ES-C,which additionally includes a timestamp over the validation references or the whole signed document. </td> </tr> <tr class="row5"> <td class="col0"> <b>ES-XL</b> <br/> ((EXtended Long Electronic Signature) </td><td class="col1"> Different from ES-C, it contains the validation data itself not the reference. </td> </tr> <tr class="row6"> <td class="col0"> <b>ES-A</b> <br/> (Archival Electronic Signature) </td><td class="col1"> A special form of signature which is protected by periodically generated timestamps against the danger of weakened cryptographich algorithms. </td> </tr> </table> <span class='np_break'> </span> </div> </div>