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Digitally signed documents management

sergi_l

Hi everyone!

We're starting an Alfresco project and I would appreciate if you all could help us with this concern.
Is Alfresco able to store digitally signed documents? I mean, for example: store the signature, validate that it's valid, etc.

Thanks in advance.
Regards,

Sergi

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Comments

mpetty

Is there any standard procedure for working with digital signed documents?

I mean, it shouldn't be too hard to wrap your own type of digital signature around things, but it would be helpful if there was some type of "official" way. This is a question that I also have.

uzbekjon

Hi everyone!

We're starting an Alfresco project and I would appreciate if you all could help us with this concern.
Is Alfresco able to store digitally signed documents? I mean, for example: store the signature, validate that it's valid, etc.

Thanks in advance.
Regards,

Sergi

According to this thread, there is a commercial version. I searched the web and alfresco forums but could not find any digital signature implementations. There is a project on alfresco forge however, but with no activity since 2007 or something…

I think digital signatures are a must feature for a document management system. Probably I don't get nuts and bolts in DS (yet) but some default DS implementations would be nice…

sergi_l

OK, thanks uzbekjon.
Looking for similar posts in the forum before opening a new one, I realized that the commercial extension is just for signing documents from Alfresco.
These documents could be signed outside and added later. What I meant was if Alfresco could manage the signed documents, showing through a property if a document has been signed or losing the signature if something is changed.

alarocca

What kind of signature do you need to manage, pdf or p7m (s/mime)? I developed some extensions to allow documents to be signed within the Alfresco Web Client using a smartcard or usb token. It seems you are looking for a module that, in case of pdf or p7m/m7m file, extracts signatures info and store them within custom properties. So you can view and search for.

BR,
Alessandro

OK, thanks uzbekjon.
Looking for similar posts in the forum before opening a new one, I realized that the commercial extension is just for signing documents from Alfresco.
These documents could be signed outside and added later. What I meant was if Alfresco could manage the signed documents, showing through a property if a document has been signed or losing the signature if something is changed.

alessandrolt

Hi alarocca,
Which module you are talking about? Where can I find it?

alarocca

It's something I did for a customer of mine. It is based on:

evalutor to make available this action only for PDF
dialog to sign the document (it also show if the document is already signed)
applet to create the signature

Best regards,
Alessandro

Hi alarocca,
Which module you are talking about? Where can I find it?

dacedos

It's something I did for a customer of mine. It is based on:

evalutor to make available this action only for PDF
dialog to sign the document (it also show if the document is already signed)
applet to create the signature
Best regards,
Alessandro

Hi Alessandro, I'm very interested about signing documents within Alfresco. Did you publish your module?

Can you please explain more detailed the way you develop it? Which libraries did you use?

If you want you can contact me by email

Thanks in advance.

gronfelt

I would also be very interested in learning more about this module, since it sounds like something that could be very useful to me.

alarocca

Hi, it was not pusblished since it is a commercial module.

Best regards,
Alessandro

It's something I did for a customer of mine. It is based on:

evalutor to make available this action only for PDF
dialog to sign the document (it also show if the document is already signed)
applet to create the signature
Best regards,
Alessandro

Hi Alessandro, I'm very interested about signing documents within Alfresco. Did you publish your module?

Can you please explain more detailed the way you develop it? Which libraries did you use?

If you want you can contact me by email

Thanks in advance.