esign-cert

Provides an Alfresco Share action for signing PDF files (PAdES-BES format) and any other file (CAdES-BES format detached) via java applet (@firma miniApplet, opensource at https://github.com/ctt-gob-es/clienteafirma) or local application AutoFirma by protocol (http://forja-ctt.administracionelectronica.gob.es/web/clienteafirma) where applets are not possible (i. e. Google Chrome).

NEWS

Now with an Angular 5 Component based in Alfresco ADF Framework.

Available at esign-cert-ng2

PREVIOUS BACKGROUND

This addons includes a button to perform electronic signature based in electronic certificates from client computer. This addons has nothing to see with SSL or server electronic signature. Every user of Alfresco require a configured Personal Electronic Certificate (available to be picked from the browser) to use the addon

IMPORTANT NOTICE

If you installed alfresco-firma-pdf, it's required to uninstall it before using esign-cert addon.

java -jar alfresco-mmt.jar uninstall sign-document ../tomcat/webapps/alfresco.war  
java -jar alfresco-mmt.jar uninstall sign-document-share ../tomcat/webapps/share.war  

esign-cert features

AutoFirma local application for computers is currently supported only for Windows, Mac OS and Linux.

Available for download at AutoFirma
Source code available at clienteafirma

Cliente movil @firma local application for devices is currently supported for iOS and Android:

• Google Play - Cliente movil @firma
• App Store - Cliente @firma movil

Currently following browser and OS combinations are supported:

Windows

• IE Edge: not supported by now
• IE Classic: Local application / Applet
• Google Chrome: Local application
• Mozilla Firefox: Local application

Mac OS

• Mozilla Firefox: Applet
• Apple Safari: Local application (currently not working)
• Google Chrome: Local application (currently not working)

Linux Ubuntu

• Mozilla Firefox: Local application
• Google Chrome: Local application

iOS

• Apple Safari: Local application
• Google Chrome: Local application

Android

• Google Chrome: Local application

Notice: this module supersede previous one alfresco-firma-pdf

This module uses a software digital certificate or a cryptographic hardware supported by a smart card.

License
The plugin is licensed under the LGPL v3.0.

State
Current addon release 1.8.2 is PROD

Compatibility
The current version has been developed using Alfresco 5.0.d and Alfresco SDK 2.1.1, although it runs in Alfresco 5.1.x

• Use 1.7.1 for Alfresco 201707 (aka Alfresco 5.2)

• Use 1.8.0+ for Alfresco 201806 (aka Alfresco 6.0)

Browser compatibility: 100% supported (refer previous paragraph)

Languages
Currently provided in English,Spanish, Macedonian and Brazilian Portuguese.

No original Alfresco resources have been overwritten

Downloading the ready-to-deploy-plugin

The binary distribution is made of two amp files:

• repo AMP
• share AMP

You can install them by using standard Alfresco deployment tools

Building the artifacts

If you are new to Alfresco and the Alfresco Maven SDK, you should start by reading Jeff Potts' tutorial on the subject.

You can build the artifacts from source code using maven
$ mvn clean package

You can build the artifact repo with the dependency itextpdf 5.0.6, it works from Alfresco 5.0.d to 201704 $ mvn clean package -P5.0.d

Signing the applet

You can download plain applet from http://forja-ctt.administracionelectronica.gob.es/web/clienteafirma

Oracle jarsigner can be used to perform a signature on miniapplet-full_1_6_2.jar. To deploy this change, just replace current JAR for your signed JAR and rebuild the artifacts.

Below a sample jarsigner invocation is provided

$ jarsigner -storetype pkcs12 -keystore keensoft_sign_code_valid-until_20170811.pfx miniapplet-full_1_5.jar -tsa http://tss.accv.es:8318/tsa te-9b5d5438-2bb6-435f-8542-6d711bc9784f  

Running under SSL

Signature window is built on an IFRAME, so when running Alfresco under SSL, following JavaScript console error may appear:

Refused to display 'https://alfresco.keensoft.es/share/sign/sign-frame.jsp?mimeType=pdf' in a frame because it set 'X-Frame-Options' to 'DENY'.

If so, check your web server configuration in order to set appropiate X-Frame-Options header value.

For instance, Apache HTTP default configuration for SSL includes...

Header always set X-Frame-Options DENY

... and it should be set to SAMEORIGIN instead

Header always set X-Frame-Options SAMEORIGIN

Configuration

Before installation, following properties must be included in alfresco-global.properties

Sample configuration 1

# Native @firma parameters separated by tab (\t)  
esign.cert.params.pades=signaturePage=1\tsignaturePositionOnPageLowerLeftX=120\tsignaturePositionOnPageLowerLeftY=50\tsignaturePositionOnPageUpperRightX=220\tsignaturePositionOnPageUpperRightY=150\t  
esign.cert.params.cades=mode=explicit  
# Signature algorithm: SHA1withRSA, SHA256withRSA, SHA384withRSA, SHA512withRSA  
esign.cert.signature.alg=SHA512withRSA  
esign.cert.params.firstSignaturePosition=signaturePage={page}\tsignaturePositionOnPageLowerLeftX=50\tsignaturePositionOnPageLowerLeftY=45\tsignaturePositionOnPageUpperRightX=305\tsignaturePositionOnPageUpperRightY=69\t  
esign.cert.params.secondSignaturePosition=signaturePage={page}\tsignaturePositionOnPageLowerLeftX=310\tsignaturePositionOnPageLowerLeftY=45\tsignaturePositionOnPageUpperRightX=565\tsignaturePositionOnPageUpperRightY=69\t  
esign.cert.params.thirdSignaturePosition=signaturePage={page}\tsignaturePositionOnPageLowerLeftX=50\tsignaturePositionOnPageLowerLeftY=23\tsignaturePositionOnPageUpperRightX=305\tsignaturePositionOnPageUpperRightY=47\t  
esign.cert.params.fourthSignaturePosition=signaturePage={page}\tsignaturePositionOnPageLowerLeftX=310\tsignaturePositionOnPageLowerLeftY=23\tsignaturePositionOnPageUpperRightX=565\tsignaturePositionOnPageUpperRightY=47\t  
esign.cert.params.fifthSignaturePosition=signaturePage={page}\tsignaturePositionOnPageLowerLeftX=50\tsignaturePositionOnPageLowerLeftY=1\tsignaturePositionOnPageUpperRightX=305\tsignaturePositionOnPageUpperRightY=25\t  
esign.cert.params.sixthSignaturePosition=signaturePage={page}\tsignaturePositionOnPageLowerLeftX=310\tsignaturePositionOnPageLowerLeftY=1\tsignaturePositionOnPageUpperRightX=565\tsignaturePositionOnPageUpperRightY=25\t  
  
# Property for disable sign other docs  
esign.cert.signOtherDocs=false  
  
# Sign Purpose (Default enabled=false)  
esign.cert.params.signPurpose.enabled=false  
  
# Enable or disable download signature resume on pdf files (Default false)  
esign.download.signature.report.enabled=true  
  
# Web application URL to download signed document by CSV (Default null)  
esign.csv.url=  
  
# CSV image position to print(Default null).  
esign.download.signature.report.default.csv.place=  
  
# Signature resume position to print (Default Default null).  
esign.download.signature.report.default.signature.info.place=  

If no signature position selection form is required, signaturePosition properties must be declared blank. PDF signature will be performed by using esign.cert.params.pades in this scenario.

Sample configuration 2

# Native @firma parameters separated by tab (\t)  
esign.cert.params.pades=signaturePage=1\tsignaturePositionOnPageLowerLeftX=120\tsignaturePositionOnPageLowerLeftY=50\tsignaturePositionOnPageUpperRightX=220\tsignaturePositionOnPageUpperRightY=150\t  
esign.cert.params.cades=mode=explicit  
# Signature algorithm: SHA1withRSA, SHA256withRSA, SHA384withRSA, SHA512withRSA  
esign.cert.signature.alg=SHA512withRSA  
esign.cert.params.firstSignaturePosition=  
esign.cert.params.secondSignaturePosition=  
esign.cert.params.thirdSignaturePosition=  
esign.cert.params.fourthSignaturePosition=  
esign.cert.params.fifthSignaturePosition=  
esign.cert.params.sixthSignaturePosition=  
  
# Property for disable sign other docs  
esign.cert.signOtherDocs=false  
  
# Sign Purpose (Default enabled=false)  
esign.cert.params.signPurpose.enabled=false  
  
# Enable or disable download signature resume on pdf files (Default false)  
esign.download.signature.report.enabled=false  
  
# Web application URL to download signed document by CSV (Default null)  
esign.csv.url=https://www.google.es  
  
# CSV image position to print(Default null).  
esign.download.signature.report.default.csv.place=csv.all.pages  
  
# Signature resume position to print (Default Default null).  
esign.download.signature.report.default.signature.info.place=signature.info.first.page  

Usage

Every document is including a Sign action to perform a client signature depending on the mime type:

• PDF files are signed as PAdES (with a visible signature)
• Other files are signed as CAdES (detached)

Both documents include also signer metadata:

Format: CAdES-BES Detached  
Date: Wed 2 Mar 2016 22:31:32  
Signer: CN=NOMBRE BORROY LOPEZ ANGEL FERNANDO - NIF 25162750Z, OU=500050546, OU=FNMT Clase 2 CA, O=FNMT, C=ES  
Serial number: 1022640006  
Caducity: Tue 12 Apr 2016  
Issuer: OU=FNMT Clase 2 CA, O=FNMT, C=ES  

PDF files can be signed up to 6 times on 6 different positions. Once a PDF is signed in a certain position that position is no longer available for signing. The signatures positions are defined in alfresco-global.properties.

To enable download signature report action, is necessary set to true property esign.download.signature.report.enabled on alfresco-global.properties. Then, you can configure default position of CSV and/or signature resume watermarks with properties esign.download.signature.report.default.csv.place and/or esign.download.signature.report.default.signature.info.place.

Availables values are:

• esign.download.signature.report.default.signature.info.place
• signature.info.first.page
• signature.info.last.page
• signature.info.all.pages
• signature.info.none
• esign.download.signature.report.default.csv.place
• csv.first.page
• csv.last.page
• csv.all.pages
• csv.none

If you don't set those properties, Alfresco asks user the position of CSV and signature resume.

Download signature report action is only available for nodes with next features:

• PDF nodes.
• Documents signed on this Alfresco instance. (Documents signed only by your organization).

Web service is available to verify documents with csv:
http://localhost:8080/alfresco/s/alfatec/document-csv?csv=textCSV
You should be replace with the CSV (sign:csv) instance of 'textCSV'

Todo

Pending features to be included (aka "wishlist"):

• Signatures associated to workflow steps (Activiti)
• Massive signature over a set of documents in one action
• Signature formats: XAdES, ODF, OOXML
• Visible signature including custom image for PAdES
• Signature verification
• AdES signatures elevation
• LTA integration

Contributors

• Daniel E. Fernández
• Douglas C. R. Paes
• Vasil Iliev
• Pedro González
• Alberto Ramírez Losilla
• Mikel Asla
• Maria Tsiakmaki
• Sergio Campoy