Reference material/link is required on Digital signature

Hi
Can anyone provide me any link/ reference material related to digital signature.
I want to explore it for following tasks
1. How digital signature works.
2. How a pdf can be signed using workbench
3. How to sign entire pdf
4. How to sign/block only few fields in the pdf
Regards
Sunil Gupta

Sunil
Here is some information...
How digital signature works
http://www.adobe.com/devnet/acrobat/
Also, see attached socs.
How a pdf can be signed using workbench
Workbench is the development tool for creating LiveCycle ES2 processes. To sign a PDF on the server side (in an automated fashion) you need to have LiveCycle Digital Signatures ES2
For more info...
http://www.adobe.com/products/livecycle/
http://www.adobe.com/products/livecycle/digitalsignatures/
How to sign entire pdf
When a digital signature is applied to a PDF, the entire PDF is "signed". You cannot sign specific pages or sections.
How to sign/block only few fields in the pdf
You can specify "field collections" when creating a PDF with Adobe Designer. You then associate the field collection with a particular signature field. When the signature field is signed, the associated field can\will be locked.
Hope this helps
Steve

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Hi Nikhil,
please refer to this document:
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/e0fbaa71-cd8d-2910-5982-e30626035400&overridelayout=true
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What is meant by digital signature in form16

HI SAP Gurus
our client required digital signature in form 16 , i would like to know actually what is digital signature, how it will be done in sap, what is the main reasion to do this.
pls give me some inputs regarding this.
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Hi Suresh,
Please find below link for Information on Digital Signature.
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/media/uuid/40cacc80-c1fc-2a10-f8b5-9e33b1829552
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Digital signature for form-16

Hi Experts,
We have to implement digital signature for form-16 on only SAP system (not on portal). Can anyone write me steps to configure and impelement it in ECC6.0
I have read SAP Note 1168740 and tried to open the link
Steps to install these credetials is explained at following URL:
                         http://help.sap.com/saphelp_nw70/helpdata/en/db/ aafb211ead420faeeaa24e99eb5f41/frameset.htm
Further information on digital signature can be found at:
                         http://help.sap.com/saphelp_nw70/helpdata/EN/46/ 1ca382f3ec5873e10000000a11466f/frameset.htm
and also tried to get information on "Adobe Document Services Configuration Guide".
However, i am unable to get the details. Pls help me to resolve this.
Thanks & Regards,
Shree NP.
Edited by: SAP.HR.NP on Jan 4, 2012 11:20 AM

Hi Shree,
As mentioned in your post, the configuration given in the document is Basis related. However, the entire configuration for Digital Signature for Form 16 is available in Note 1168740. Are you facing some problem in opening the links mentioned in the Note?
You can try to visit the below links:
a) Uploading a digital signature in the system:
   You obtain your credentials and the corresponding public keys (as part of a certificate) for certifying and signing from a
   certification authority. Steps to install these credetials is explained at following URL:
http://help.sap.com/saphelp_nw70/helpdata/en/db/aafb211ead420faeeaa24e99eb5f41/frameset.htm
Further information on digital signature can be found at:
http://help.sap.com/saphelp_nw70/helpdata/EN/46/1ca382f3ec5873e10000000a11466f/frameset.htm
Also, go through the Note 1589254 (Form 16 central note for ADS configuration). In order to include digital signature to Form 16's PDF, some additional ADS configuration is required. This note provide check point of ADS configuration for Form16. Once done check the form 16 and let me know if you are getting some error on executing Form 16 with digital signature? Or are the signature not working at all?
Regards,
Nishtha

Some questions concerning the digital signature on an interactive form

I've just finished an interactive Advertising Contract with 128-bit encryption that will enable recipients to submit CC info safely to our publishing firm. Even though form fields at the top allow typing the name of an authorized person, the signature line at the bottom is presenting problems because in order for anyone to sign, they need a digital signature.
(1) Is this necessary? If so, is there any way of automating it for clients so they don't have to go through the process of creating one?
(2) How do I create a digital signature for my partner and have the SUBMIT button on the form channel the returns to his email address instead of mine (which it is doing because of another interactive form I created in which I was the point person for returns)? I couldn't find anything in the "properties" of the OK button that allowed me to enter an email address.
Thank you so much for your help here. This is time-sensitive, as we need to get the package out ASAP.

1. If you require a digital signature, then setting up a digital ID is necessary in order to sign a digital signature field. So the question is really more fundamental: Do you require that people sign the form with a digital signature? If you say yes, what are the reasons?
2. If you are using the distribution process in Acrobat so thatt you can collect the form data in a responses file, you should distribute the form using the other person's machine that has Acrobat installed on it.
If you don't want to do this and only want to collect the returned documents without placing the data in a responses file, you can set up your own submit button using any email address you want and not use the distribution process. You will have to Reader-enable the document and then email or otherwise get it to the users. How you set up the submit button depends on how you want it to work exactly, and which version of Acrobat you're using. More information can be found here: http://acrobatusers.com/tutorials/form-submit-e-mail-demystified
If you still want to go through the distribution process and want to change the email address that it uses, you can change it in: Edit > References > Identity > Email Address
You'll then have to redistribute the form using a copy of the form as it existed prior to your first distribution. The responses file will be on your machine.

Multiple digital signatures in one file

I have a client who wants me to combine 4 different forms into one--then--require a digital signature by the same person after each independent form. So that would be 4 digital signatures total. And all identical. I'm using a different name per each field so there's no conflict.
It appears to work fine until I have it submit dynamically with a PHP script via email inbox.
When I open the PDF (having crunched the info back in from an FDF) the data is there EXCEPT the digital signatures.
Can someone point me to a tutorial?
Best regards,
Mare

Hi Mare,
You cannot merge files and expect that the digital signatures will be preserved. When you sign a file you are signing all of the bytes in that file, and only that file. Once you combine files you are creating a new unsigned file. If someone were to sign the new file they are signing all of the bytes in the new file, not just some of the bytes. There is no "page level" signing in PDF files, only whole file signing.
You can however put the signed files into a Portfolio file. A Portfolio keeps the files separate. Think of a Portfolio like a file cabinet in the physical world. Just because you put different files into the file cabinet drawer, they don't merge.
Steve

Digital signatures with different versions of Reader

I have created a form which requires a digital signature for approval. Typically, an employee will complete the form in Reader and forward it to a supervisor for approval. The supervisor needs to sign it digitally and forward it to me.
The issue we are having is with those employees who are completing the form in Reader and the supervisor (or someone thereafter) has a more updated version of Reader and cannot sign the document. What can we do to stop this from happening? There is no practical way to keep everyone on the same version of Reader. We will have many more forms which require a signature, and we need this issue resolved. (I am using Adobe Acrobat 9 Pro to create the forms.)
Also, is there a way to verify the digital signature without using a third-party source? At this point, we know anyone can create a digital signature using someone's hand-written signature they found on another paper and we would like to prevent this from happening. We need to validate the person who used the digital signature is really that person.
Any help is appreciated! Thank you!

If you are creating your forms in Acrobat 9 Pro. and then Reader-enabling them for digital signatures, then recipients of the form will need to use at least version 8 of the Adobe Reader. Also, you'll need to do a few things during the authoring stage of your form, if your form changes by role (i.e., additional data is entered, annotations, or multiple signatures). Mainly you'll need to use a certification sig. for the first signature and set permitted changes after certifying.
You can find a lot more detail on best practices on developing forms for multiple signatures in the Digital Signature User Guide at:
http://www.adobe.com/devnet/acrobat/pdfs/acrobat_digsig_userguide_90.pdf
The guide also explains how to validate documents (authenticity validation and document integrity validation).

Digital Signatures - preserving throughout the process

I have a form with 4 parts, each part requiring a digital signature.
I just read the article on preserving digital signatures (http://www.adobe.com/devnet/livecycle/workflow/articles/lc_wf_preserve_digisig_tip.pdf), but I am still a little confused. Does this only work if I am sending the form as an email attachment (is that what the routes and attachments mean)?
We want to do everything on-line (using pdf's)? We want part 1 user to fill out the form on-line, digital sign it, then it submit the form where it gets routed to part 2 user. So, is it possible for user 1 to type in the last name to look up user 2 and then selects user 2 - user gets an email with a URL to fill put part 2 on-line, but the digital signature from user 1 needs to be preserved. Then user 2 will digital sign the form and route to user 3.
So, the basic question was, can we do all this on-line (using PDFs) or do we have to involve email attachments? I wouldn't think so, but I wanted to clarify.
Thank you,
Jennifer

<[email protected]> ha scritto nel messaggio news:[email protected].. >I have a form with 4 parts, each part requiring a digital signature. > > I just read the article on preserving digital signatures > (http://www.adobe.com/devnet/livecycle/workflow/articles/lc_wf_preserve_digisig_tip.pdf), > but I am still a little confused. Does this only work if I am sending the > form as an email attachment (is that what the routes and attachments > mean)? > > We want to do everything on-line (using pdf's)? We want part 1 user to > fill out the form on-line, digital sign it, then it submit the form where > it gets routed to part 2 user. So, is it possible for user 1 to type in > the last name to look up user 2 and then selects user 2 - user gets an > email with a URL to fill put part 2 on-line, but the digital signature > from user 1 needs to be preserved. Then user 2 will digital sign the form > and route to user 3. > > So, the basic question was, can we do all this on-line (using PDFs) or do > we have to involve email attachments? I wouldn't think so, but I wanted to > clarify. > I think that in your specific case, also the process via email would not preserse digital signatures, because every step that required a new digsign would change the hash value. Bye, Alessio

Digital signature help

I have a created a PDF in Acrobat 8.0 that requires multiple digital signatures. I am emailing the file to the people and asking for their digital signature. When I try to save the file with Person1's signature to a file with Person's2 digital signature, it deletes Person's1 signature and inserts Person2's signature. How can I save the file so both signatures are retained?
I need help ASAP. It is driving me crazy.

Hi,
You can't merge signed files because it modifies the PDF layer which would break the signature. One of the limitations of digital signatures is they are serial operations, that is one signature follows the previous signature. You cannot do this in parallel and merger the contents into one file. You could put the multiple files into a single Package (later renamed to Portfolio in Acrobat 9) file, but each signed copy would still be a stand alone file attachment within the Package.
The bottom line is, if you really need all of the different digital signatures in the same PDF file you need to send it to the first recipient, have them sign it, and then forward the file to the next recipient (or back to you).
Steve

Digital Signature Authentication

We have developed a form that requires multiple digital signatures. With each signature, it is forwarded on to the next manager via a submit button and the form attaches to a new email. Last week I updated the form and added a new person's email address to the drop-down menu along with their email address. I extended the rights for users and it seemed to be working beautifully. However, as of late yesterday users were getting a message stating they could not sign and some previous signatures had the ? mark as those signatures could not be authenticated. HELP! I don't know if its a problem with the digital signature or I did or didn't do something??

Hi Sandi,
First up, I highly doubt that this is related to the validity of the Reader Extension credential, nor is that something you even need to worry about.
If one of the signatures is in an unknown state (the question mark icon) then there is a prompt to warn the next signer that they are signing a file with signature problems, but it doesn't prevent signing from occurring. Let's get some background information to help figure this out.
First up, do you know what application is being used (e.g. Acrobat or Adobe Reader)? Next, what is the version of the application? Finally, this message that users are getting, can you tell me what it says verbatim?
Thanks,
Steve

Pdf fillable form - multiple digital signatures

I have a fillable pdf form that requires multiple digital signatures. Is there a way to send the form to multiple parties and merge it back to one form upon receipt of the signature from each party? Does that be accomplished with a javascript or do I need to use a different software? Thank you.

That's not how digital signatures work, so the answer is "no". When multiple people need to sign a document, they need to sign the same document in sequence.

Digital Signatures for mutliple company code

Hi,
Our client have multiple company codes & they want to use digital signature for all the company code and there be individual authorised digital signatory for each comp code.
Now the question is , whether we have procure different digital signature for individual company codes & if so how system will identifies which authorised ditigatl signature should be assigned to respective company code...?
=> We are not able to download Adobe Form local & aslo is it mandatory to have digital signature to download Form 16 on a local system.
System details : ECC 6
SP Level : 38
Thanks & Regrads,

Digital Signature is person specific
You have to take the Digital signature ( A number assigned for each signatory with the tool),from an authorized services provided by NSDL
In a single company code if you have 2/3 signatories , first you need to make groups based on the signing authorities, in combination of PA/PSA/EG/ESG/BA etc
The form 16 is to be generated on the above criteria applicable.
3 file of form16 will be generated and send accross to 3 signing authorities
The signing authority can open the form using the tool ,digitial signatory software install and can authenticate the form16.
As per NSDL form16 is now not an statuory doucment. Its just an Tax Information of an Employee.
which is not required to be attached with your ITR's also
So why do you require the Digital signature to be printed on the form16 . Pls check this up with your finance team
Thansk & Regards
Hemant V. Mahale

Configuring Digital Signatures

I have configured ADS for my development ECC. I need to configure digital signatures for Form 16. Please can anybody guide me how to go about this. I am unable to find a proper document.

hi Sridevi Anujan ,
use this link for configuring the digital signature for form 16 . hope this will help you ,
[http://www.saptechies.com/digital-signature-for-form-16/]
regards
chinnaiya

Reference material/link is required on Digital signature

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