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Sinadura 5 for Alfresco

Protocol based digital signature for Alfresco 5

During the past months, we implemented a new version of Sinadura, our popular digital signature desktop client. One of the main new features of the version 5 is the addition to the main installer of a new mini-client designed for the web. This mini client was developed for the replacement of the java applet technology, by a protocol-based signature registered in your operating system. As you probably know, java applets are not supported in Chrome since one year ago, from Chrome version 45. Besides, Mozilla intends to remove support for most NPAPI plugins in Firefox by the end of 2016, and Oracle plans to deprecate the Java browser plugin in Java Standard Edition Development Kit 9 (JDK 9). This deprecation is a warning for developers to stop using this technology in their systems, and this opportunity can be seized for integrating your ERP, CRM, or your custom web application with Sinadura 5.

Some years ago we did a digital signature integration in Alfresco with the cryptoapplet for signing PDF files. This is the evolution of this signature addon for Alfresco 4 and 5. Based on the features of Sinadura client, the new integration has many benefits, mainly:

  • The possibility of signing any type of file. Sinadura uses Pades for PDF files and Xades dettached for the other mimetypes.

  • Advanced signature properties, such as timestamps or digital signature validations.

  • Digital signature profiles, depending on your corporate certificates using custom images for signature stamps (for PDF only). You can also place these visible stamps in a customized position of the document.

  • Actions for signing one or several files in Alfresco Share client.

  • Previews of the digital signatures in Alfresco Share Preview (for PDF only).

The installers of Sinadura 5 are available for Linux and Windows, and they include the installation of sinadura protocol in the operating system. The sinadura protocol works via a third party service (sinaduraCloud.war) installed in a servlet container that can be the one of your Alfresco installation. Also, two AMP files are needed for Alfresco repository and Alfresco Share respectively. Another two AMPs are available for the validation of the digital signatures and the visualization of properties in Alfresco Share.

Below you can find some screenshots of the digital signature Actions in Alfresco Share and Sinadura digital signature client:

1. Actions in Alfresco Share: Signature and validation actions are available for one and multiple files:

2. Signature profiles: Sinadura is able to work with different signature profiles with custom preferences, as visible signatures and background images.

3. Where are you going to sign ? Sinadura allows to choose a particular place for the digital signature (only for PDFs).


  

4. Previews on Alfresco Share: Alfresco Previews and thumbnails shows the digital signatures.

5. Validation and signature details The details for digital signatures are shown in Edit Properties form.

Stay tuned for the forthcoming publication of the addon. We can show you a demo of this addon at Librecon 2016.

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