Basic Doubts in Digital Signatures ES

1) Revocation Checking : i read that the certifications will be checked(to see whether it has been cancelled) by checking the CRLs list. Where can i find this list?
2) What is the concept behind Long Term Validity in Digital Signatures ES.
Please help me in understanding Digital Signatures ES.

Revocation Checking : i read that the certifications will be checked(to see whether it has been cancelled) by checking the CRLs list. Where can i find this list?
ANSWER: The CRL typically resides on a server somewhere, and is accessible with an http URL. The URL is specified within the digital certificate itself. From an Acrobat point of view, when a CRL is acceesed during a revocation check, it may be cached on the client side. The cached CRLs are stored at:
C:\Documents and Settings\enteruserproflehere\Application Data\Adobe\Acrobat\9.0\Security\CRLCache
What is the concept behind Long Term Validity in Digital Signatures ES.
Long Term validation has to do with how are signatures validated many years down the road... When certificates expire (typically the validity period for a certificate is 1 year) the status of the signature can change. It does not mean that the signature is invalid, it just means that based on the current time, the certificate has expired and therefore this is reflected in the signature status. If the signature is validated in the future using "The time at which the signature was created" then it will report a Valid different status (assuming the document has not been tampered with.
The "time" used to validate signatures is a Preference setting in Acrobat and Reader (Edit > Preferences... > Security > Advanced Preferences... > Verification)
Regards
Steve

Similar Messages

Basic problem about Digital signature

hi
i am new to digital signature .
I am Developing onlinepurchasing demo.when customer order for quotation he recieves a quotaion pdf which is singed by delaler .now my quostion is how customer can validate that signature .do i need to send certificates to customer along with pdf . please help
can anyone suggest me good link to learn digital signature.
Thanks
Niraj

Niraj
The best solution for your scenario would be to "Certify" the PDF that you send to your customer. A certifying signature is a digital signature applied to a PDF (typically by the author of the document). Adobe partners with various Certificate Authorities that provide "Certified Document Service" credentials. If a PDF is certified by one of these credentials, the validation on the client side occurs seamlessly with no configuration required on the client as Acrobat and Reader ship with the Adobe Root Certificate installed.
For more information on the this, check out: http://www.adobe.com/security/partners_cds.html
also, http://blogs.adobe.com/security/2008/01/demo_certified_documents_in_ad.html
and, http://blogs.adobe.com/security/2008/11/livecycle_digital_signatures_t_1.html
Technically, you could certify a PDF with any credential, but you would need to distribute the certificate (public key) with instructions on how to install it and configure the trust settings in Acrobat or Reader.
Regards
Steve

Digital Signature only Release Status with 3(Approver) Signer

Hello SDN Folks
I have done all the basic settings for Digital Signature which is sawn in following link
http://wiki.sdn.sap.com/wiki/display/PLM/Digitalsignaturein+DMS
it is work fine with 1 RE (Release) status and 1 Signer
We have in process to implement Digital Signature with only two Status
our scenario is
Document Creator Create Document With Status CR
Document Approver Approve Document With Status RE
now we have scenario that For 1 Document we have 3 Approver and 3 approver must digitally sign on DIR
our status is
only CR(create)---->RE(release)
so how i can attached 3 digital signer with only 1 RE(Release) Status
is it possible to go with 3 digital signer with only 1 RE (Release) Status ????
Regards
Tushar Dave

Hi Tushar,
Your requirement of utilizing 3 different approvers for a single 'Release' status in a document type/s can be addressed via the approach proposed below:
1.Define 3 individual authorization groups
2.Define 3 individual signatures
3.Define a common signature strategy
4.Assign the above 3 individual signatures to the common signature strategy
5.Define the signature sequence(the order in which the 3 approvers must approve)
6.Define users and restrictions(signature assigned to relevant approvers/users)
7.For the document type in question for the 'Release' status,assign the above signature strategy and test.
For more detailed information on using digital signature effectively,refer the below link
http://help.sap.com/saphelp_470/helpdata/en/9f/857f3a1c7b11d294d200a0c92f024a/frameset.htm
Regards,
Pradeepkumar Haragoldavar

MS Visual Basic for Applications will not apply digital signatures

When using Microsoft Visual Basic for Applications within any office application (Excel in this case), i cannot see the certificate store when creating digital certificates. It appears to be localised to the operating system but can't seem to find the issue.
To create the digital signature within Excel i normally go to Developer > Visual Basic > Tools > Digital Signature. When i select 'Choose', the certificates are not presented.
Has anyone experienced this?
Thanks in advance.

Hi,
As far as I know, If we want to use the digital signatures, we need to Digital Certificate for VBA Projects tool which a set of extra tools. I recommend we repair/reinstall the tool with a backup install CD.
Then, we may follow the below links to reset a digital signatures and add the digital signatures in the trust list(Location: File>Option>Trust center.) to test if it is helpful:
http://www.wiseowl.co.uk/blog/s240/digital_certificates_for_macros.htm
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
Regards,
George Zhao
TechNet Community Support

Excel 2013 crash - related to digital signature?

This is a cross-posting of a thread originally started in Microsoft Answers (Office- Excel) forum, advised to post in this forum by MS support engineer Mohan Suryanarayan (link to other forum: here).
I have a VB macro in file A (which otherwise contains only several Excel Tables with named ranges). My digital signature (for signing code) is attached to file A.
As the macro executes, the Open file dialog is called up so that the User can select a secondary file to open (file B or C).
Files B and C contain several sheets with formulas and Excel Tables, and also their own extensive VB macros. My digital signature is also attached to files B & C.
The remainder of the macro in file A simply executes an update of the Excel Tables in the secondary file, before saving & closing it.
I have been finding that during execution of the file A macro, Excel crashes and closes all open Excel files.
If I remove the digital signature from the secondary files then the macro in file A executes with no problem.
The macro was written in Excel 2007 and on a different laptop, with different digital signature, and used to have no problem at all. When a new laptop was purchased a new digital signature was obtained and placed into all of the files.
Execution of file A is a critical process - I need help with stopping the crash, while maintaining a digital signature in the secondary files (so that their own macros can execute).
Event Viewer error shows the following:
Faulting application name: EXCEL.EXE, version: 15.0.4667.1000, time stamp: 0x543d366c
Faulting module name: mso.dll, version: 0.0.0.0, time stamp: 0x5447696f
Exception code: 0xc0000602
Fault offset: 0x011aafdd
Faulting process id: 0x2d58
Faulting application start time: 0x01d01e17eafcd0bb
Faulting application path: C:\Program Files\Microsoft Office 15\root\office15\EXCEL.EXE
Faulting module path: C:\Program Files (x86)\Common Files\Microsoft Shared\Office15\mso.dll
JL Latham replied:
Tom, all I can give you is relatively non-information. I haven't experienced that type of behavior even in Excel 2013 with digitally signed macros in multiple workbooks. But my digital signature is a commercial one from DigiCert, not
self-cert. I'm not even sure what piece of Excel or Office processes the digital signature (that is, whether it is mso.dll or not). But your whole process has more moving parts than most of mine involving multiple workbooks do - I quite often turn
off .EnableEvents when doing things like that just so event driven macros in the other workbook(s) do not execute.
Do the macros in the 'B files' have to execute during all of this processing in file A? If not, have you tried turning interrupts off:
Application.EnableEvents = False
before starting to work with the B-files? Maybe something in them, such as a Worksheet_Change() or other event triggered process is messing things up?
If you do use Application.EnableEvents=False, remember that you MUST re-enable that later in the code with Application.EnableEvents=True to get responses to things like button clicks, changes in a worksheet or other event driven processes
to run 'normally' again.
Have you looked at this discussion:
http://answers.microsoft.com/en-us/office/forum/office_2013_release-excel/excel-2013-crashing-immediately-when-attempting-to/ea2ab100-5525-4a0d-a3cf-6977319f954f
Sounds very similar to yours - original signature created in 2007, and crashing in 2013. Some suggestions were made, but whether they fixed the issue or not is unknown: OP never came back and said "fixed it" or "didn't fix it".
I replied:
In answer, the secondary B files don't execute any part of their macros during the A file process, and I hadn't included an EnableEvents = False within the file A code. However, I have just tried it to check if it made any difference and unfortunately it didn't.
I had read the thread you gave a link to before posting, and also the sub threads given within that one, but didn't see anything I thought of immediate parallel other than an Excel 2013 crash.
The way I read the linked thread was that a User added a signature in Excel 2007 and when they tried to open the file Excel (2007?) crashes, although other people using Excel 2013 can open it (not clear whether it means others can open the one with
the 2007 signature or without it).
Anyway, the differences in my situation are that:
(1) my B-files were originally created in Excel 2007 on a different laptop to current and had their own signature attached. I maintain a 'stock' of B-file versions, some of which have the old signature and some the new. If I run the A-file macro
on one of the B-files with the old signature then it executes ok;
(2) I am able to open the B-files ok, no matter whether the signature in them derives from the old laptop with Excel 2007 or the new laptop with Excel 2013;
(3) the macros within the B-files execute ok (this includes any versions of the B-files which still have an old signature attached, by removing the old signature and replacing with the new and executing on the new laptop);
(4) the offending operation which triggers the crash (when the B-files have the new signature attached) is a Resize of the Excel Tables within the B-file. I understand that I may eventually have to find a workaround for this operation but initially
I want to sort out the signature issue (I'm reasonably sure the signature issue is not a red herring where the Resize is the 'real' problem).
Regards, Tom

Hi,
According to your description, this issue occurred with some particular files that stored in SharePoint site. Did the user download the file to local disk to print?
Based on the event log >>Faulting module name: EXCEL.EXE<<, it does not show the root Faulting module. Thus, please try to follow this KB to do general troubleshooting:
https://support.microsoft.com/en-us/kb/2758592
Then, if you have used "printer status application", please go to Device settings -> Installable options -> Printer Status notification and select disable.
If this issue still exists, we may need to collect the App crash dump file:
https://technet.microsoft.com/en-us/sysinternals/dd996900.aspx
You can try to analyze dump by yourself if you would like to：
How to analyze app crash dump file:
http://blogs.technet.com/b/askperf/archive/2007/05/29/basic-debugging-of-an-application-crash.aspx
Regards,
George Zhao
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

How do I create a digital signature on a TCP or a UDP flow?

I am trying to convert samples of a voice signal, which is intercepted from the microphone, into fixed length digital signature bytes (using Hash, or) and attach these fixed length bytes to a communication session between two terminals (UDP or TCP "HTTP"). The other receving end should be able to identify the person at the sending side.
Any thoughts how I could do this?
Any help is most appreciated.
Sam

Sam,
If you have the Sound and Vibration toolkit it may make some things easier for you regarding the voice-recording aspect, but if you aren't recording and playing back the actual sounds, just using this for detection and digital signatures, you shouldn't need to worry about this.
1. For this you are going to be doing some form of Analog Input. Then you will be storing this data to a file. There are examples for both of these aspects in the NI Example Finder from within LabVIEW.
2. If you are going to be doing the FFT, there is a VI under the Mathematics Palette that performs this operation. Again you can use the same example for saving data to the file.
3. You would need to figure out what needs to be done to create a digital signature for this. There may be something in the Sound and Vibration toolkit for this, but I do not know.
4. For the UDP or TCP transfers, there are several examples for doing this and they cover how to create the connection and transfer / receive data. These too are in the NI Example Finder
5. This goes back to number 4, this would indeed be a separate program, but everything else would just be one project and one program.
6. This would depend on how the ID was created in step 3, again whether you do the algorithm on yourself or not. For comparing to the table, you would use a Search Array and some comparison functions, all depending on how you stored the data initially.
7. Graphs are all available on your Front Panel of your VIs and you would just wire up the data that you'd like and have it displayed on the graph.
There will not be an example for everything that you are wanting to do. The examples are meant to help you get started. Have you used LabVIEW before? I would recommend doing the 3 Hour LabVIEW Introduction Course to help you get started. This will cover some of the basic concepts that you will need to know in order to create your application.
Unfortunately I cannot write the code for you, only guide and direct you. LabVIEW is a programming language and does require the user to lay out and create their own program. You will not be able to just find three or four pre-built code-snippets and connect them together to get your appliction working the way you want it. You will need to develop the applications yourself.
Regards,
Jared Boothe
Staff Hardware Engineer
National Instruments

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 Signatures: Multiple Tasks and Signers

Hello, All-
Context: We have a repair and overhaul operation that has several technicians performing maintenance. Basic workflow: product comes in, gets the paperwork for the specific maintenance, and then travels through the facility to be broken down, serviced, rebuilt, tested, and returned to service. We would like the "paperwork" to be all electronic (which we can do with Acrobat by using PDF documents), but there are several tasks that require a technician's signature. Not a digital signature for the WHOLE document, just a task in the document.
Objective: Multiple technicians signing off on mutilple tasks, all in one document.
Questions: Can we modify the document (i.e., add/insert pages) in Acrobat after a digital signature is applied using the Reader? Do those signing off on the tasks only need the Reader to create and apply the signature files? Can multiple signature files be stored in a centralized location, since technicians use work station machines (rather than a computer issued specifically to them)?
Doing some investigation for the best solution. Sorry for the series of long questions.

> "No. However, this can't be done in Reader under any circumstances... Reader is just that, a reader of PDF files. It can't edit them in any meaningful way, like add new pages (unless a special template was set up for this purpose)."
- I should have clarified: we would like to modify the document using the full Acrobat Suite after digital signature. Signing once locks the entire document from further edits.
> "Not 100% sure about that, but I think the answer is no. Signatures have to located on the local machine."
- That's a problem: then every technician needs a digital signature on every machine. Not suitable at an enterprise/department level.
I just found an answer to the basic concept, as it was answered just yesterday (http://forums.adobe.com/thread/1338837): I can leverge the Stamp feature and create a custom stamp to act as a signature. I can still modify the document after applying the stamp.
Now the test: can others remove my stamp?
Edit: Thanks for the help, BTW. I see you edited your answer to question #1. Again, maybe the stamp feature is sufficient?

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!

Acrobat 9 Standard and the Digital Signature usage right

Acrobat 9 Standard is apparently able to apply certain usage rights to a document. I am trying to confirm whether or not the digital signature usage right is included. The
Acrobat 9 product comparison seems to indicate it is not, but the online help implies that it is.
Can someone with Acrobat 9 Standard confirm this for me by testing a document that you've enabled for use with Reader by attempting to sign a digital signature field with Reader?
George

In the office area, the Pro version might be good to have for the forms and other features. For the general library, Reader is probably adequate. Actually allowing PDF creation on public machines can be an issue. In a small libary system, Acrobat might be reasonable where you do not have to deal with a large, diverse population. However, for basic PDF creation, only Std is needed. Having both AA8 and AA9 on the same machine can lead to problems. However, if you remove one, you will likely have to repair the other.
The problem with older versions is that they may not properly read some of the newer PDFs that might be downloaded. For the latter, you could install the latest version of Reader, but you need to be aware that you may have to deal with issues of right clicking (windows) on a file and selecting which application to open a PDF with. For forms and some editing, the Pro version would be good to have. You also have PDF Optimize and PreFlight with the Pro version that generally are not including in the Std version.
To help compatibility with the files you create, you can select Start>Printers>Adobe PDF preferences (right click on printer). In the settings tab>Default settings> select at least Std or better Press or Print and then push edit. Under the general tab select the compatibility and set it to AA8 so that every thing is compatibile with the oldest version of Acrobat you have.
If you have more than one computer in the office, you might consider having AA8 on one and AA9 on the other. Do check and be sure you have licenses for whatever you have and that someone has not come in and installed a pirated version. Also be sure you keep the original CDs and licenses (or if they were downloaded, burn the downloaded version to a CD as an archive and write the SN on the label).
Now that I have confused you, are there more questions?

Adobe Reader 9, Form Fields, Digital Signature

I have already posted this in Adobe Reader forum and had no replies... probably the wrong area...
We are a software company and we are developing a simple application, as follows:
Any number of pdf documents are provided by a third party (our customer / customers). Each form contains any number of fields and a digital signature field.
Our application must fill the fields with values obtained by a back-end database
Using Adobe Reader 9, our application must display each pdf document filled in step 2, for users to sign using a Topaz tablet.
The "blank", original pdf document can be easily completed by hand and signed using the Topaz tablet - thanks to the Adobe Reader plug-in.
Also, we can quite easily fill all the doument's fields using the popular iTextSharp libraries - we extract relevant data from our back-end database, we set the field values, and we display the document in Adobe Reader 9 (note that after filling the form, we have experimented with "flattened" and "non-flattened" documents....with the same results)...
Here we start having some problems:
As soon as the "filled" document is displayed in Adobe Reader, the message "This document enables Reader capabilities that are no longer enabled in this Reader version." is displayed. And the signature field is disabled and the Topaz plug-in is never invoked.
It seems that the simple task of programmatically filling the form with data.... disable the most important feature of the form (the signature line).
Unfortunately, my knowledge of the Adobe product line is somewhat limited....
After hours of research I think I understand why (even though I find the behavior incredibly strange and restrictive). I still would like, if possible, summary and clear information on what we (and/or the provider of the pdf forms) need to do to accomplish the goal of our application.
Thanks in advance for any suggestion.
Giorgio

jmo here
In context of your description, use of Acrobat Pro to "enable" PDFs for use by Adobe Reader appears to be contrary to the Acrobat EULA (if nothing else, the "500" limit for forms).
If that's the case then I suspect your only option would be LiveCycle ES.
Back down the Forum's timeline, someone mention $50K for a seat.
But LC ES has many variations (modules if you will) so the price point may be higher.
Basically, it is expensive (although worth the $$ to the IRS and other large entities).
Worth noting are the posts in this forum that allude to Adobe's legal actions taken against those who have, it seems, violated the Acrobat EULA.
If your client(s) are associated with a corporate entity they may be exposed to legal "road hazards"; but, that's speculative, eh?
Regardless, it does sort of appear that you may be on thin ice vis-a-vis "enable" of PDFs for use by Adobe Reader.
Be well...

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

Digital Signatures in Workspace

Hello,
I'm trying to apply multiple digital signatures to a document in Workspace. Basically, I have a form that dynamically shows/hide signature blocks based on a dropdown. So, if the form needs 3 approvers the user selects 3 from the dropdown and 3 signature blocks are shown (along with 3 fields to key approver ids). So, my process basically loops through the approvers and assigns a task to them. When the approver opens it in workspace they are supposed to apply their signature and click complete. All works fine except when the next approver opens the form in workspace the previous approvers signature is gone.
Can anybody fill me in on what I need to do to make something like this happen? It seems that this would be a common use case for LiveCycle.
Thanks!
Bryan

Jasmin - I got all the working. Now I'm trying to extract the XML data from the DocumentForm in order to make some routing decisions from it.
I've tried using processFormSubmission and exportData. In both cases I'm saving the output from the operation to a document then copying it to an xml variable.
When I use processFormSubmission my xml variable is always null.
When using exportData it looks like I'm getting in my xml variable. I can see the xml but I can't seem to xpath to the Signer1 to in my User action. Any thoughts?
xml document from exportData.
2007-08-02 09:55:13,565 INFO [STDOUT] [PID:1,405] /process_data/xmlData - XML Document:
            905
            21FDEC80-5549-F780-7010-06A4E6418D18
            [email protected]
            http://localhost:8080/workspace-server/submit
            1
            2
                apink
                kvarsen
        http://localhost:8080/workspace-server/submit

Variable numbers of digital signatures in a form?

I'm trying to build a template form that can be used to propose new projects. I have a dynamic table where the author can add rows to add offices that will be involved in the project. I also have a table at the end that represents a "workflow" that the final proposal will go through so that all the offices involved can approve the document. Right now, when a row is added to the offices table, a corresponding row is added to the workflow table. But I can't place digital signatures in the repeating portion of the workflow table. I understand this is not supported, but does anyone know of another way to achieve the same effect? Basically I need a form that can support a variable number of digital signatures.

Jennah
I'm not sure I fully understand your question. Are you looking to add signatures in an automated fasion in an ad hoc fasion, or did you want to design the forms with signature fields already on the PDF form?
Assuming you are using LiveCycle Designer to create the forms, you can ad signature field(s) to the form when you create the forms. When a user clicks on the signature field, they will be prompted to select a digital certificate to sign the form with. Note that if the end users only have Reader, the form will need to be Reader Extended (to enable the ability to sign a PDF with reader)
There are other third party methods to sign PDF documents such as CIC's SignIt.
here are some links that may be of use:
http://www.adobe.com/security/
http://partners.adobe.com/public/developer/security/index_security_partners.html
http://www.adobe.com/security/digsig.html
Regards
Steve

Can ILM_TOOLKIT be used standalone for Digital Signatures on result sets

Hello
Looking for means to digitally sign rolled out PL/SQL software I found the Digital Signature functions of ILM Assistant.
We probably won’t be using the basic functions of ILM as there’s already an application data lifecycle process in place, but the “Immutability” functions look very interesting.
A digital signature, for our purpose, could perhaps be created with a query against DBA_SOURCE.
So far I found the procedures
ILM_TOOLKIT.create_sql_result_set
ILM_TOOLKIT:delete_sql_result_set
ILM_TOOLKIT.load_sql_result_set
which might do what we want. But I haven’t found any published documentation yet
Does anyone know if the ILM_TOOLKIT can be installed and used standalone (i.e. without apex and browser GUI) in order to be called directly and if there’s any documentation on it.
Thank you very much
Klaus

Hi,
You can certainly install the toolkit without the gui, but you would have to modify the installation scripts to keep it from installing the APEX application after the toolkit has been installed.
There is no published documentation; however, I could give you some insight into what you would need to do. Let me know if this still interests you.
Thanks,
Greg

Basic Doubts in Digital Signatures ES

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