Digital Signatures Across the Network

Hello,
We are currently working on a digital signature implementation across our network. What we want to do is set Acrobat to look for digital signatures in a specific location across all machines and profiles. In what ways could we possible accomplish this with out adjusting these settings for each profile on every machine?
Any help is appreciated. Thanks.

What kind of icon do you mean? A icon on a application? Please provide more detail about your requirement.
Do you need this? http://www.sevenforums.com/network-sharing/110543-possible-change-folder-icon-across-network.html
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How to send a digital signature across sockets ?

i have wriiten java code for client server communication - the client sends a digital signature and the server verifies it using the public key .I have sent the signature as a string from the client to server.although the verification comes as true most of the times , some times it comes as "false" .i dont know why it comes that way .
so my question is ::: is there any problem in sending the digital signature as a string. if so , then how can i send it across sockets ?
i have used the necessary specs [ X509EncodedKeySpec , PKCS8EncodedKeySpec ] to write and read the private , public keys.so i dont think its a problem with the keys .
thank you :)
Edited by: itcoll on Dec 1, 2008 2:43 AM
Edited by: itcoll on Dec 1, 2008 2:54 AM

so my question is ::: is there any problem in sending the digital signature as a string.Depends how you constructed the string, how you sent it, and how you received it. Not knowing any of those things it is impossible to comment further.

Second digital signature invalidates the first one

Hello to all,
I'm having some troubles adding a second digital signature to an already digitally signed PDF. The library that I'm using in order to handle the PDFs is an open source one, so I'm programmatically editing the PDFs. The first PDF I produce, PDF1 (the PDF with one signature), has a valid digital signature. The second PDF I produce, PDF2 (the PDF with the two signatures), has the second signature marked as valid, but the first one as invalid with the following error:
Error during signature verification.
Unexpected byte range values defining scope of signed data.
Details: The signature byte range is invalid
I've read and applied all the "best practices" on PDF digital signature, so I'm adding the second signature in incremental mode and I'm sure that the second PDF has no changes in the first part, this because if I make a binary comparison of PDF1 and PDF2, the first part of the PDF2 equals PDF1. So if you remove the incremental part from PDF2 (after the first %%EOF), you obtain PDF1 again with the valid digital signature. So the problem seems to be in something new in the incremental part of PDF2 that makes Acrobat Reader X thinks that the first digital signature is invalid.
If you want to see the three PDFs, here are the links:
The original PDF: https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BzrgexS80Iq_ODQxZTY2MDk tNTQyYi00YTE0LTk0MTctYWMxNDFiOWY4MjA5&hl=en_US
PDF1: https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BzrgexS80Iq_ZDQ3MTk1ZmI tNWI4NS00YzdhLTkxNmUtODk1NjVmY2M2NTVh&hl=en_US
PDF2: https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0BzrgexS80Iq_ZGM1YmZhMWE tY2JiYi00YzZkLWE5ZjItNzgwM2RlNzExYWE1&hl=en_US
Any help will be very apreciated. Best regards.

Hi,
I'm not sure if this helps, but I found something unusual with your PDF2. Just at the beginning of the second incremental update (with the new signature), the first object is added without a carriage return. This make the last line of the previous update looks like this:
%%EOF3 0 obj
May this leads to incorrect parsing and then invalidates the signature? Not sure about that, but as far as I can read offsets, your byte ranges are correct.

Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code

I get this message when I check the Device manager for my Ipod
Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)
How do I resolve this I have reinstalled iTunes but it still doesn't recognise my ipod

I reinstalled Itunes a couple of times. I unistalled all programs that I never use, I updated all of my drivers, Windows swept my computer and found no problems. I have a yellow causion lite when I look at the USB-port with the phone connected. All other devices work without a problem.

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Hmm, if you are not using Oracle Payroll, what are you using for payroll? I am wondering why you could not use your payroll system, whatever it is, to handle this reimbursement program.
Well, you may want to talk to Oracle support about how to handle this in Oracle iExpense. You can certainly handle advances for Expense Reports. You would then apply the advance to the expense report items. The catch is I don't think you can stop expense item entry after the adavance is satisfied. You would have to set up a work flow process of some kind to have the expense reports reviewed and only approve expenses that are applied to the advance, is what I am thinking. Not your ideal solution, but something to think about. It could be the Oracle folks might know of a sneaky way to handle this. What you are trying to do is unusual. Employee advances are common, but the idea of not being able to exceed the advance amount is what unusual about this. Normally you will accept any expenses over the advance amount and reimburse the employee for those extra amounts not advanced.
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Also got posted in '10.3 or earlier' community, where other posts are regarding this issue ... I get "digital signature on the update is missing or invalid" trying to install 10.6.8 combo on MacBook currently using 10.6.3. Have used Disk Utility, Restart, Shut Down, with no luck. Used Software Update from 2 different avenues, and also downloaded from apple site. Also searched support.apple, no luck. Thoughts?

ok. i've done the moving of those plist files, restarted and tried again. it hasn't worked, but thank you for your suggestion. i got excited for a minute or two.
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TS2972 I cannot seem to get all of my music shared across the network from my MacBook Pro to my iPad. This was not an issue a few days ago. Can anyone help?

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To print Digital signature on the Purchase Order

How to print Digital Signature, on the PO Print copy (PDF).
It will be based on release strategy. Whoever is approving the PO, his signature should be printed automatically on the Purchase Order.
How to achieve this ??
Please let me know in detail
thanks
amit

Hi Amit,
I am not sure on how to get the the signature of the person who released the PO, because as per my understanding the Relase Strategy i.e the Relase code is attached to a Basis profile.
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Here are the Highlevel steps
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reward if useful.
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Hello,
I'm creating a form for someone who wants to be able to use a digital signature OR free type within the same field.
I've tried creating a new combo box with the free type as the first option, but can't seem to figure out a way to have a digital signature as the second option.
Does anyone know if it's possible to get both options in one field?
Thanks in advance.

Thanks, George. You've helped me several times in the past and I know you're a power user, so if you say it's not possible, I know I'm barking up the wrong tree! Appreciate the reply.

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I'm facing a very odd problem. A week ago I've installed a 3750x on a client.
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By the day of the activation, everything works great. I have at this first moment,
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Carlos
The short answer is you can't as far as i know. You need to do NAT to able to do this and i don't think the Nexus switches support NAT.
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View/Change User Accounts From Across The Network - Do not have Server

Is there a program or utility that can be run in Mac OS X Tiger or Leopard to manage user accounts on other Macs that are located across the network? Is there anything that will do this that is free, or not too much money?
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Hope this helps

Digital signature on the update is missing? So cannot load updates for MacBook or synch Ipad - Help

Digital signature on the update is missing or invalid.This message appeared when trying to up date ITunes in order to Synch with a new IPad.

Wondering how to download from update site? I have 10.6.8 and need to upgrade, do I jump to the most recent version, or to 10.7?
Also, if the automatic update doesn't work, what do I do to use something from the download site?

Digital signature increases the file size

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Actually, it sounds normal. Try turning off the preference "Include Signature’s Revocation Status When Signing" but be sure you understand the consequences... that space is being used for something that might be important.

"Windows cannot verify the digital signature for the drivers required for this device."

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Windows cannotverify the digital signature for the drivers required for this device. A recenthardware or software change might have installed a file that is signedincorrectly or damaged, or that might be malicious software from an unknownsource. (Code 52)

I would uninstall and reinstall the Apple software. See the following. The following also has a link for Win7/Vista
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP

Windows cannot verify the digital signature for the drivers required for this device. Code 52

Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52).
I have reinstalled, uninstalled, the whole 9 yards.

See the driver topic of:
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I would start with:
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Digital Signatures Across the Network

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