Last modified by Aysegül Omus on 2024/04/22 12:50
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1 = Set Up Digital Signature =
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3 This [[Wiki Page>>https://xwiki.rbg.tum.de/bin/view/Informatik/Helpdesk/DigitaleUnterschriftValidieren]] describes how to validate a digital signature.
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7 {{toc/}}
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10 == 1. Mac OS X ==
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12 === Adobe Reader ===
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14 ==== Import Certificate ====
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16
17 You can download Adobe Reader for Mac OS X [[here>>https://get.adobe.com/de/reader/]].
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19 Start up the program 'Adobe Reader DC' and click on **Preferences**.
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21 [[image:Adobereaderpreferences.png||width="800"]]
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26 Choose **Signatures** from the dropdown menu.
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28 [[image:adobereadersignatures.png||width="500"]]
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33 Click on **More** in the **Identities & trusted Certificates** section.
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35 [[image:adobereadermore.png||width="800"]]
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40 Choose **Digital ID Files** and click on **Attach File** in order to import a certificate.
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42 [[image:digsigattfilefiles.png||width="800"]]
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47 Choose your certificate file.
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49 [[image:digsigzertopen.png||width="800"]]
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54 Enter the password that was previously set, when exporting the certificate.
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56 **Note**: If no password was set, during the exportation of the certificate this step can be skipped.
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58 [[image:digsigattfilepwd.png||width="800"]]
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63 The Certificate is now imported and can be used for digital signatures.
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65 [[image:digsigaddidfinish.png||width="800"]]
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68 You can also synchronize Adobe Reader with Keychain Access and import all certificates at the same time.
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72
73 ==== Using Digital Signature ====
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76 In order to sign a file with your digital signature, click on the blue field.
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78 [[image:adobereaderunterschrift.png||width="800"]]
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83 Choose your certificate.
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85 [[image:digsigzertauswaehlen.png||width="800"]]
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90 Enter the password set during exportation.
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92 [[image:digsigpasseingabe.png||width="800"]]
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97 Click on **Sign**.
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99 [[image:digsigpasswdsign.png||width="800"]]
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104 Next, save the File. This will confirm the digital signature.
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106 [[image:adobereaderpreferencesspeicherndatei.png||width="800"]]
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111 The digital signature looks as follows:
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113 [[image:adobereaderpreferencesdigitalunterschrieben wiki.png||width="800"]]
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117 == 2. Windows 10 ==
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119 You can download Adobe Reader [[here>>https://get.adobe.com/de/reader/otherversions/]]
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121
122 === Adobe Reader ===
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124 ==== Import Certificate ====
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127 The setup for digital signatures in Windows is parallel to Mac OS.
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129 Go to the **Preferences** Panel.
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131 [[image:adobewinpreferences.png||width="800"]]
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136 Click on **Signatures** and then on **More**.
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138 [[image:adobewinsignature.png||width="1000"]]
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143 You can now import your certificate. Choose **Digital ID Files** on the left hand side and **Attach File** in order to do so.
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145 [[image:adobewinatttach1.png||width="800"]]
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150 Once the certificate has been chosen, enter the corresponding password, set during the exportation process.
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152 **Note**: If no password was set, during the exportation of the certificate this step can be skipped.
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154 [[image:adobewinattachfile.png||width="800"]]
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158
159 ==== Using Digital Signature ====
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161 In order to sign a file with your digital signature, click on the field to which you wish to add the signature.
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163 [[image:adobereaderunterschrift.png||width="800"]] Choose your certificate.
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168 [[image:adobewindigidauswaehlen.png||width="800"]] Next, save the File. This will confirm the digital signature.
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173 [[image:adobereaderpreferencesdigitalunterschrieben wiki.png||width="800"]]
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177
178 === JSignPdf ===
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180 You can download this tool [[here>>https://sourceforge.net/projects/jsignpdf/files/latest/download]]. It will download an .exe file.
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182 Open it with a double click and install it:
183 [[image:windowssetup1.png||width="1200"]]
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188 [[image:windowsetup2.png||width="1200"]]
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192 [[image:windowssetup3.png||width="600"]] Start the program.
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196 [[image:windowsprogrammstart.png||width="800"]]
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201 Choose the **Keystore Type** **PKCS12-DEF-3DES-3DES** and the certificate you wish to use. Enter the corresponding password below and choose the file you wish to sign digitally. Click on **Settings**.
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203 **Note**: If no password was set, during the exportation of the certificate, no password needs to be entered here.
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205 [[image:jsignpdfeinstellungen.png||width="1000"]]
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210 Click on **Preview and Select**.
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212 [[image:digsignwinprewievselect.png||width="1000"]]
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217 Highlight the field in which to use the signature
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219 [[image:winddigsignfeldmark.png||height="528" width="1141"]]
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224 You can adjust the position of the signature with these parameters.
225 [[image:digsignwinprewievselectcloseneu.png||width="1000"]]
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230 Click on **TSA/OCSP/CLR** and activate **Use Timestamp Server**.
231 [[image:timestampdigsigwind.png||width="1000"]]
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236 Finally, click on **Sign It**.
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238 [[image:signitwindigsignat.png||width="1000"]]
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243 You can see the details in the Output Console of the program.
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245 [[image:digsignwindkonsole.png||width="1000"]]
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250 The digital signature looks as follows:
251 [[image:digsignwind.png||width="1000"]]
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253 The digitally signed file is automatically saved as a new file in the directory of the original file.
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258 == 3. Linux ==
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260 === JSignPdf ===
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262 You can download the tool [[here>>https://sourceforge.net/projects/jsignpdf/files/latest/download]]. This will download a .zip file. Unpack the file.
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264 Install Java via the console.
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266 {{html wiki="true"}}
267 {{code}}sudo apt-get install openjdk-8-jre{{/code}}
268 {{/html}}
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272 Go to the directory jsignpdf-1.6.4:
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274 {{html wiki="true"}}
275 {{code}}cd ~/jsignpdf-1.6.4/{{/code}}
276 {{/html}}
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280 and use this command:
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282 {{html wiki="true"}}
283 {{code}}java -jar JSignPdf.jar{{/code}}
284 {{/html}}
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289 This will launch the program. Choose the Keystore type **PKCS12-3DEF-3DES-3DES** , the desired **Certificate**, the corresponding P**assword** set while exporting it and the file to be digitally signed.
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291 **Note**: If no password was set, during the exportation of the certificate, no password needs to be entered here.
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293 Click on **TSA/OCSP/CRL**.
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295 [[image:JSIGNPDFLINUX-TSA:OCSP:CRL.png||width="1000"]]
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300 Activate **Use Timestamp Server**.
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302 [[image:timestempelserverlinux.png||width="1000"]]
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307 Open **Settings**.
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309 [[image:jsignpdfeinstellungenlinux.png||width="1000"]]
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314 Click **Preview & Select**.
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316 [[image:jsginpdflinuxprewievselect.png||width="1000"]]
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321 The PDF-File should open. Choose the filed in which you wish to insert your digital signature and click on **Close**.
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323 [[image:feldmarkierenlinux.png||width="1200"]]
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328 __**Signature name and Description**__
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330 Choose font size 6, in order to have enough space for the date to be displayed.
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332 [[image:jsignpdfbereichmanuellauswaehlenlinux.png||width="1000"]]
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337 __**Only Description**__
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339 Choose **Only Description** and click on **Close**.
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341 [[image:jsignpdfnurbeschreibunglinux8.png||width="1000"]]
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346 Click on **Sign**.
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348 [[image:jsignpdfsignierenlinux.png||width="1000"]]
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353 You can see the details in the Output Console of the program..
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355 [[image:jsignkonsolelinux.png||width="1000"]]
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360 The digitally signed file is automatically saved as a new file in the directory of the original file.
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362 The digital signature with the setup **Signature name and Description** and font size **8** in Adobe Reader looks as follows:
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364 [[image:jsginpdflinux8.png||width="1000"]]
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369 The digital signature with the setup **Signature name and Description** and font size **6** in Adobe Reader looks as follows.
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371 [[image:signpdf6linux.png||width="1000"]]
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376 The digital signature with the setup **Only Description** and font size **8** in Adobe Reader looks as follows:
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378 [[image:jsignnurbeschreibunglinux.png||width="1000"]]