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12 views

Run our own Certificate Authority for internal use only: safe or not? [migrated]

According to the guide at How to Run Your Own Certificate Authority, my company intends to issue our own digital certificates for internal use only (the Managers will sign PDF documents to send the ...
0
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0answers
19 views

Create a server based digital signature services on Windows

I want to develop a system for digital signature services. here is the summary of my system scenario: Private keys are stored on HSM(e.g. nShield Connect) rather than smart card HSM is connected ...
-1
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1answer
78 views

Is it possible to disable drive signature verification on Windows 8?

When installing drivers, sometimes we need for the system to not ask for confirmation to the user (i.e: unattended or remote installations). A good example of this is the TAP network driver for ...
0
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0answers
31 views

Why the digital signature is invalid?

I have signed a pdf digitally with a valid certificate installed as a personal certificate in the keystore. When I open the file in my computer the signature is valid and the signer is the current ...
0
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0answers
220 views

VirtualBox fails to start on Windows Server 2003

For reasons I cannot disclose, I need to install a Linux server within a VirtualBox host running in Windows Server 2003. Unfortunately, VirtualBox fails to start, giving me an error that seems to ...
0
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0answers
25 views

What is the use of validating certificate in Adobe Reader

I've received a PDF which is digitally signed and they provided a guideline to validate the signature. I have done those steps, the signature shows as valid. I saved it as a copy and sent it back to ...
2
votes
1answer
137 views

Delete the digital signature from a received Outlook message

My goal is to delete the digital signature in an Outlook message. My initial idea was to create a VBA script (which I have done below) to enumerate all attachments in the selected mail item and ...
2
votes
2answers
2k views

How do I disable digital signature checking for Windows 8.1 EFI files?

I'm trying to patch my bootmgfw.efi file to change the background color of the BitLocker password prompt and other Windows bootup screens. I found the values to search for and replace for the color ...
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vote
3answers
199 views

OpenSSL 0.9.8zc -> 0.9.8zd “broke” my certificates.

I have a self-signed certificate (and CA) created on a Mac using OpenSSL 0.9.8zc. I use the certificate to secure connection to my svn server. With the latest OS X update, OpenSSL was updated to ...
0
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0answers
49 views

Java Application Error while code signing for signing control in firefox

While code signing for Firefox crypto control, I was prompted with below error. Its a Java Script Application. psigntoolext_signArchiveFile(): xpsigntoolext_extractArchiveFile() failed - ex : ...
1
vote
2answers
19 views

Signed application fails to launch

On a particular Windows Vista PC, all programs signed with a particular certificate fail to launch from explorer, when it verifies the publisher. Only for a second or two, the hour glass is visible, ...
-1
votes
1answer
25 views

Is there any point signing/encrypting personal email? [closed]

It works fine for corporate mail where everyone in the organization would have a certificate issued to them, but does anyone use certificates to sign their personal mail (let alone use encryption ...
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0answers
42 views

Export P12 from GnuPG for PDF signing field

It seems to be possible to export a PGP .asc file to .p12, but I'm unable to use the generated .p12 file for a signature field in a PDF file. Is there a way to export it so it's usable for that field, ...
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0answers
77 views

Validate a PADES document with expired certificate

I have a problem. I have a PDF that has been signed with a certificate, and then it has been put a timestamp with a TSA. I want to validate this document, but now, the certificate which it was used ...
0
votes
1answer
137 views

Firefox/Thunderbird export public key

I have imported a .p12 file inside Firefox/Thunderbird, now I would like to export its public key (without using openssl or whatever command line code), so I can distribute it and people can ...
0
votes
0answers
49 views

Thawte digital signing certificate does not show chain of trust

We are using digital signing certificate from thawte . I am able to digitally sign the exe using the digital signing certificate . After signing exe I verified the sign by checking its chain of trust. ...
2
votes
1answer
46 views

Hang when launching digitally signed executable

We have a weird problem on 2 PCs with running a digitally signed 120 Mb executable. If user launches a digitally signed .exe - then the launching host (e.g. Explorer or cmd.exe) will enter infinite ...
2
votes
0answers
149 views

How can I sign an MS Word macro with a digital certificate from the local machine certificate store?

I am trying to find out how I can digitally sign a Microsoft Word macro using a valid 3rd party CA issued VBA code-signing certificate that is installed into the machine rather than the user ...
0
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0answers
191 views

Why does sigverif find a non-signed driver which does not exist on disk?

I noticed my windows 8.1 were suddenly in test mode and I can't find the offending driver. I tried sigverif.exe which found one file: setup.msi in folder c:\ibtwu the folder does not exist on my ...
1
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1answer
59 views

Why is Signature Displayed Inside White Rectangle in Adobe Document After Printing?

I am using latest Adobe Reader XI and after appying signature and printing .PDF document, I get signature displayed inside white rectangle and it covers what should be not covered. It looks as if ...
0
votes
1answer
42 views

Enforce encryption in Outlook 2010 for specific E-Mail addresses

There is a specific E-Mail address which I have to send data always encrypted and signed. I already configured everything, such that the E-Mails get encrypted and signed, but I often forget to turn on ...
-1
votes
1answer
70 views

Acrobat digital signature -mark as read only not working

I am using Acrobat XI Pro. I have created a simple form where the top half should be filled in then digitally signed by user 1. Then the bottom half should be filled by user 2, but user 2 should not ...
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1answer
5k views

How to sign gmail email with digital signature?

I have my personal digital signature on the special card and the according reader. How can I sign an email (sending it with gmail) with this signature? I am on the latest OSX and use Google Chrome ...
2
votes
0answers
664 views

Okular: how to sign a pdf?

How do I sign a PDF in Okular? I tried searching for about 20 mins, but I can't find any answers... I have a .png of my signature, and I basically want to insert it into the document on the dotted ...
0
votes
1answer
975 views

How to add unsigned driver without prompt?

I want to install printer on a huge amount of Windows 7 machines. Some drivers are signed by recognized publishers, other not. When there are not, and I do the manual process, I get the message ...
0
votes
0answers
15 views

how can i grab digital signature expiration info from binaries - recursively (windows)

how can i grab info regarding digital signature expiration, (in addition to signed/not signed and issuer) in Window O/S. I've tired with sysinternals SIGCHECK however it can't provide info regarding ...
1
vote
1answer
224 views

Can I use a “Microsoft Office” Digital ID / certificate to sign PDFs in Adobe Acrobat?

I've been needing to sign PDFs lately - fortunately everyone's been fine with me using a self-signed certificate, however I feel it's unprofessional. I'm looking for a personal certificate I can use ...
3
votes
1answer
63 views

How to merge several detached signatures from different people into one?

A group of people wants to publish a file and they all want to digitally sign the file as different recipients of the file will have different chains of trust. For simplicity, it's desired that there ...
4
votes
1answer
269 views

How to make computer (or user) trust signed software

I have an application, which I sign and timestamp using a code-signing certificate issued by thawte, with intermediate authority Thawte code signing CA - G2. The signature is OK (as it shows in file ...
2
votes
1answer
84 views

How can an unsigned driver affect the Windows OS?

There are lot of signed drivers (signed by Microsoft) that don't affect the Windows OS. If an unsigned driver is installed in a Windows machinehow can it affect the stability of the operating system, ...
1
vote
2answers
258 views

Generate a public key certificate signed by CA with OpenSSL

I am working on a webservice that requires a signature in the sent and received messages. After sending a certificate request to the entity that will consume the webservice, they sent me (in addition ...
1
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0answers
76 views

Microsoft Digital Signature Expiration in Active Directory

We have a large number of users on our network that need to sign forms digitally from time to time with Microsoft digital signatures that are set up to expire each year. Some of our users however are ...
1
vote
1answer
89 views

Can I sign my emails with both S/MIME and PGP/GPG?

And if it possible, is there any benefit from doing so in one order or the other? signWithSMIME(signWithPGP(message)) versus signWithPGP(signWithSMIME(message)) Also, are there any reason not to ...
0
votes
1answer
143 views

How does advanced digital signature on pdf work by concept (on receiver side)?

If someone like an Agency or something wants me to send a pdf signed with an advanced electronic signature, what does that mean for the receiver? I could now make a local keystore and use any program ...
0
votes
1answer
55 views

Signature not removed from keyserver

I noticed that an on uid of my GPG certificate is two times signed with my key. I thought that doesn't make much sense and cleaned the key (gpg --edit-key and then clean). Then i send the key to the ...
1
vote
2answers
3k views

Multiple Digital Signatures in Word 2010 Sometimes Fail

I regularly have a requirement to obtain multiple digital signatures on a Word 2010 docx file. The document is prepared by the author with Insert->Signature Line for each signatory before any of the ...
3
votes
1answer
681 views

Embed a GPG Signature in a PDF File

Is it possible to embed GPG signatures in PDF files the way it can be done with X.509 signatures? (I've been using JSignPDF to sign my invoices so far, but now the law has relaxed a bit, and it ...
1
vote
1answer
265 views

Digital ID for internal communication

We are looking for a simple solution where we can create digital ID of our staff member [3-4] only. And then we install their ID in Outlook and can use to send encrypted and digitally signed Emails. ...
6
votes
2answers
3k views

GPG - verifying signatures without creating trust chain?

Is it possible to ask gpg (or gpg4win) to just verify whether a file was signed by a particular public key file, without having to import and sign and trust that key? i.e. something like gpg ...
2
votes
0answers
47 views

Why do large organisations still not sign various EXEs? [closed]

We run a controlled Windows 7 environment and have several applications that are digitally signed by the publisher that run under user context fine. However, even now we still get vendors large and ...
2
votes
1answer
490 views

Digital Certificate (Signature) Verification in Software Installation

I need to know what exactly happens during digital certificate (signature) verification when a software is installed by the operating system. I understand that this is a asymmetric key process and I ...
1
vote
1answer
405 views

Merge multiple digitally signed versions of Word 2010 document

I have a document that I want to be digitally signed by multiple clients, and sent back to me. Since no client precedes another in rank, ideally I would like to send the document to all clients ...
5
votes
1answer
7k views

Windows 7 claims driver is not digitally signed, but it is

On this system the WLAN AutoConfig service will not start: In error log/system: "The WLAN AutoConfig service depends on the NativeWiFi Filter service which failed to start because of the following ...
0
votes
0answers
109 views

Multiple electoric signatures using Word 2003

Searching for an answer whether Office Word 2003 files can support multiple electronic signatures each resource that i came up with mentions that it can be done on Word 2007+... Here are but a few ...
2
votes
1answer
751 views

Preventing PDF document from having a digital signature added with long term signature validation?

I'm running into a new issue with PDF file sizes. It seems that Acrobat X and above now have by default enabled a preference called "Include Signature’s Revocation Status When Signing". Essentially ...
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vote
0answers
311 views

Why does 64-bit Win7 still warn after having chosen “disable driver signature enforcement”?

I have a test driver that must run on 64-bit Windows 7. According to MSDN, there are two methods to disable OS to check driver's digital signature: Method 1. Connect the machine to a debugger, such ...
2
votes
0answers
2k views

Export Microsoft Word document for Adobe Acrobat signature

When I save a MS Word document (.docx) as a PDF, I am not able to sign it in Adobe Acrobat. Is there a way to export an MS Word doc to a signable PDF? Third party products are an option as well.
5
votes
3answers
6k views

Where to find the latest digitally signed Synaptics touchpad driver?

In the past, Synaptics provided their touchpad drivers in a digitally-signed self-extracting executable. For example, here is an older version of the driver hosted on the official Synaptics website, ...
2
votes
1answer
727 views

Does software for Windows 8 on Surface always have to be signed? [duplicate]

Possible Duplicate: Install a Windows 8 Modern UI app without the Windows Store We want to program for Windows 8 for Surface and have problems signing the software before installing for ...
1
vote
1answer
179 views

Is it possible for a digitally signed application to be infected by a virus?

I downloaded "java development kit" from my college computer, the computer that I used to download the software was full of virus and malware. I scanned the software with antivirus program the ...