Digital Signature while approving a document in KM

Dear all,
We have a an approval enabled folder in KM. My question is, can we enable digital signature for documents in that folder?
Scenario will be like this. I'm an approver. When I approve I should be allowed to digitally sign on the document.
Is this possible in KM?
We are on EP 7.0 Ehp1 SP04.
Best Regards
Aparnna Prasad

Hi GLM,
Thank you for your view on this.
I've come across the following docupaedia link
[https://cw.sdn.sap.com/docs/DOC-44165]
I'm not sure how do I integrate 3rd party solutions?
Best Regards,
Aparnna Prasad

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Electronic signature while approving documents

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I have a client who is validating its SAP B1 implemented system in compliance with FDA 21 CFR part 11 (electronic records and electronic signatures).
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Furthermore, it also require a 'password' or user id of the signer' at the time of signing the document. In B1, it does not ask for user id / password at the time of approval and simply rely on login id / password. If user is already logged in, B1 simply allow the approver to approve a document and does not prompt for user id / password again.
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Thanks in advance,
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Does anyone know how to disallow someone from putting two digital signatures on a document when one signature is for the employee and the other is for the supervisor's approval? We have never allowed digital signatures because someone raised this question because they were able to create a digital signature in their supervisor's name and affix it on the document in the approval space. Is there any way to tell that both signatures were created by the same person? I only have LiveCycle Designer 9.0 and Adobe Acrobat Pro X. It seems that there should be some code in the signature details that shows that they were both created at the same source. I've checked the certificates details on multiple names that I created and they were different every time I affixed a signature (even one for my dog) so there was no way that I could see, that we could prove that the signatures were or weren't both affixed by the same person. Until I have a way to stop this from happening, we cannot use digital signatures on our documents. There needs to be a way to trace the signature back to the source.

There are many ways to generate a digital certificate (digital ID) that can be used to sign a document. In your post you are describing what are referred to as "self-signed" certificates. This means that any user can create their own identity (as you have discovered) and sign a document with it. Acrobat and many other utilities are available that can be used to generate self-signed certificates. Using self-signed certificates can be useful in a scenario where you have established some level of trust with the signer. Usually this involves a relationship with the signer where you have explicitly trusted their digital certificate by importing the public key portion of their digital id. This use of signatures is not suited for non-repudiation, but it does allow you to determine if the document was modified or tampered with after it was signed.
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Digital signatures for customer facing documents

Hello,
I am a pretty experienced user of Adobe TechComm Suite (FrameMaker, RoboHelp), but I've never needed to dig too deep into Acrobat, so I am a newbie when it comes to setting up digital signatures.
I am using Acrobat Pro XI on Windows 7 professional, and the people who need to approve documents only have the free Adobe Reader. I don't have access to any sort of workflow system at the moment, and we aren't using a content management system. Adobe EchoSign is not suitable for our documents because of size restrictions and because 3rd-party cloud storage violates corporate policy.
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What you want to do can be done with Acrobat, but it depends a bit on how many internal users will be needing to sign the documents. For Reader users (desktop versions on Windows and Mac) to digitally sign a document, it needs to be Reader-enabled with either Acrobat Pro (not Standard) or LiveCycle Reader Extensions. The latter is expensive server-based software.
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2002-2003 signatures were signed probably with Acrobat 5 or 6. Two questions:
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Hi dude,
I appreciate that your sharing your experience and solution here. And, I would report it through our internal channel. Thanks again.
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We are implementing digital signature to BBP documentation. The signatures can be successfully triggered and documents can be signed off and status changed. When trying to unlock the signed off documents, in the document attribute window, the unlock button is however not available. Therefore we can never get a signed document re-opened. I wonder how we could configure to get the button visible?
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HI Jason,
Thanks for the message. Yes the "document is locked" checkbox has been selected.
What is the role you mentioned? I created a role with authorization objects C_SIGN and C_SIGN_BGR, but it seemed not to help.
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I'm trying to make a BSP that signs a pdf document. I've seen the BSP SSFDEMODIGSIG but It only makes a encoded file with the PDF and the sign. What I need is to create a PDF document digitally signed. Is it possible to do it?. Thanks for your help

/people/sap.user72/blog/2004/11/10/bsphowto-generate-pdf-output-from-a-bsp
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Error encountered while BER decoding Digital Signatures

Hello -
I work for a GOV agency and we use Common Access Cards/Smart Cards to login to our PC's and we subsequently use them to digitally sign PDF documents.
We have just recently switched to Adobe Acrobat 9.x Pro. Before this, we had Adobe 7.x Pro and had no troubles digitally signing documents, clearing those digital signature to reuse old documents, etc.
We first got Acrobat 9.x and had issues with digital signatures right away. We had to import this into the registry, which I believe I found on adobe forum.
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cASPKI\cASPKI\cCustomCertPrefs\c4974BB0C5EBA7AFE0254EF7BA0C695C60980 7096]
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cASPKI\cASPKI\cCustomCertPrefs\c4974BB0C5EBA7AFE0254EF7BA0C695C60980 7096\cAdobe_OCSPRevChecker]
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cASPKI\cASPKI\cCustomCertPrefs\c4974BB0C5EBA7AFE0254EF7BA0C695C60980 7096\cAdobe_OCSPRevChecker\cURL]
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cASPKI\cASPKI\cCustomCertPrefs\c4974BB0C5EBA7AFE0254EF7BA0C695C60980 7096\cAdobe_OCSPRevChecker\cURL\c0]
"sValue"=hex:68,74,74,70,3a,2f,2f,6f,63,73,70,2e,64,69,73,61,2e,6d,69,6c,00
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cASPKI\cASPKI\cCustomCertPrefs\c4974BB0C5EBA7AFE0254EF7BA0C695C60980 7096\cAdobe_OCSPRevChecker\cURLToConsult]
[HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\9.0\Security\cASPKI\cASPKI\cCustomCertPrefs\c4974BB0C5EBA7AFE0254EF7BA0C695C60980 7096\cAdobe_OCSPRevChecker\cURLToConsult\c0]
"iValue"=dword:00000001
Lately we've had trouble verifying signatures. Once we sign a document and then click the signature, we get the attached error.
Error during signature verification
Error encountered while validating
Error encountered while BER decoding
When we started to notice this we were on Acrobat 9.2. I think we may have went from 9.0 to 9.1.3 and then to 9.2 pretty quick. I removed it and installed our base load of Acrobat 9.0 and everything was working fine. I then updated to 9.1, 9.1.1, 9.1.2, 9.1.3 and none of them worked or fixed the issue. We have recently approved the update to 9.3, but that didn't fix it either. Because of this BER decoding issue, we cannot right click the signature field and clear a signature as well. Even after updates I could clear a signature field signed under Adobe 9.0.
Adobe, what should I do? Do we have a problem elsewhere, outside of Acrobat?
Again, we use smart card's to sign the documents, thus cannot change certificates.
Thanks, Nick

Hi Nick,
When you mentioned that upgrading to 9.3 didn't fix the problem, did you mean when creating a new signature in Acrobat/Reader 9.3 or did you mean opening a previously signed file and doing the signature verification?
If you meant the later, no version of Acrobat will be able to decode the signature if it was created incorrectly, which is what I fear you are referring to. What happened was Acrobat 9.0 changed the default digest method from the older SHA-1 to the the new SHA-256, but if the device that encrypts the digest (the actual signing operation) cannot handle the larger digest Acrobat is supposed to fall back to the older, smaller SHA-1 digest. There was a bug where Acrobat wasn't re-computing the digest if the smart card couldn't handle SHA-256 and creating a corrupt signature. Once this corrupt signature is written out to the PDF file there is no getting around it. Update 9.3 fixes the problem at signature creation and you should be able to successfully sign using your CAC card, but sadly there is no fixing the existing corrupt signatures.
Steve

How to Create a PDF Document and apply Digital Signature in C# using the Adobe SDK?

Hi Everybody!
I have to do two distinct tasks here:
1) How can I create a PDF document using the Adobe SDK in my .NET Applications(C# - 2.0)?
I just need a basic sample to create a document with a simple text, for example. I did not find any useful information in the adobe documentation. I have the Acrobat Professional 8.0 in my computer, but it's very dificult to work whith de Acrobat.dll and .NET with a poor documentaion.
2)How can I apply digital signature in a existent pdf document?
I need to sign documents using the SDK, just a basic sample in c# would be helpful to start!
Anybody could help?
Thank in advance!

Leonard Rosenthol or anybody that can help, sorry to insist.
I will explain better my problem:
I have an ASP.NET WebPAge (C# - 2.0). In this page, the user make a request. The request should generate a PDF document with the informations of the request and with a field to add a digital signature. The document created will be send to a approver that will confirm the approval applying his digital signature (I need to do too, a webpage where the approver open the page, choose the pdf document, and sign, just selecting his own certificate and clicking in the button SIGN... but this is another problem).
That's the reason that I have to create a PDF document. If I create a WORD or HTML document, and then convert to PDF, how can I add a field to digital signature in this pdf document?
Is there any solution using Acrobat SDK?
Thank you very much!

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Thank you for an answer.
>Do you want to actually sign the PDF or just place a signature field?
I want to actually sign the PDF.
>Do you want to do this on a desktop or a server (you mentioned command line)?
I want to do this on a server(Windows server).

Digital Signature while approving a document in KM

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