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8
votes
2answers
4k 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
48 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
585 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
445 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
8k 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 ...
1
vote
0answers
140 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 ...
3
votes
1answer
939 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 ...
1
vote
0answers
332 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
1answer
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.
6
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
773 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
242 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 ...
2
votes
1answer
2k views

What are the risks to disabling driver signature enforcement in Win 8?

In order to use the communication software for Arduino in Windows 8 I'm forced to permanently disable driver signature enforcement. I did this for sometime with windows 7 without contracting a virus ...
2
votes
2answers
695 views

Does Windows actually verify digital signatures in the Properties dialog?

When downloading executables from the Internet, I always check to see if they are digitally signed before I feel safe running them. In Windows, when right-clicking a digitally-signed file and ...
0
votes
1answer
523 views

openSSL tutorial not fully working - Can sign but cannot restore original file

I'm writing, and testing, a little tutorial for my groupmates involved in an openSSL homework. We have a bunch of PDF files, I'm the CA and each one should send me a signed PDF for me to be verified. ...
0
votes
1answer
821 views

comodo pdf sign doesn't verify in adobe, using JSignPdf

I am using jSignPDF to sign PDF with a PKCS12 i purchased from COMODO INC. But when viewing the signature in Adobe Acrobat i get, "Signature Verification Failed". How can i sign a PDF and get the ...
0
votes
1answer
890 views

Digitally Signing Software - self signing cerificate

I'd like to experiment with signing a software executable. I am afraid that there is something that escapes me. I will get to the point where I will acquire a certificate from a CA, but before then I ...
5
votes
2answers
3k views

Need a solution to verifying expired digital signatures

I use digital signatures for signing my invoices (required by law for digital invoicing in my country). The problem is, my local authority issues signing certificates that are only valid for a year ...
1
vote
0answers
67 views

Adobe Pro 9 form not digatally signable in Adobe Reader x

I created a form in Adobe Pro 9 with a digital signature block. When a Adobe Reader X user tries to sign document it does nothing? How do I correct without upgrading to Adobe Pro X?
1
vote
1answer
1k views

“Error encountered while BER decoding” in Adobe Acrobat Pro X when applying timestamp

I have a tedious problem with Acrobat Pro X 10.1.3.23: when I want to apply a timestamp to a document I always get that error. I have configured VeriSign TSA server ...
1
vote
0answers
7k views

Install microsoft Java VM on Windows 7 + IE8

I cannot install Microsoft Java VM on Windows 7 and IE8. File xmldso.cab is blocked because it does not have valid digital signature to verify its distributor. Can you use something like group ...
5
votes
3answers
3k views

Is it possible to sign archives?

I played with openssl to make a pub/prv key and create a signature of a file and validated it. I toyed with Cryptophane (windows gnupg frontend) and heard about keyservers+played with signing text. I ...
4
votes
1answer
2k views

Microsoft Word and digital signatures using PGP?

I have a document for a project that I am working on with my team, and I need to digitally sign the document in a way that can be verified by other members of the team. The catch is, internally, we ...
0
votes
1answer
175 views

Can't check PGP signature for the Linux kernel source package

Just now I downloaded the latest Linux kernel from the official site. With it I downloaded the .sign file. I found instructions on-line for how to check the file against the PGP signature. It's the ...
0
votes
3answers
2k views

Digital Signed Certificate error while connecting a remote service?

I am trying to connect Softlayer's Array SSL VPN, but I am getting this error I un-installed all the recently installed program. I am using this for last 6 months and I haven't got any trouble ...
0
votes
1answer
987 views

Windows cannot verify the digital signature for the drivers

I have been using 3G USB stick on my laptop which has Win7 64 bit installed. It worked fine for last 1 year and suddenly one morning when I tries to connect USB it said Please connect device. I ...
1
vote
1answer
308 views

Not having to type the passphrase in debsign

I'm building a debian package ( .deb ) with a continuous integration server ( Hudson ). It's work fine for building unsigned package. But i want my hudson-user to be able to sign the package ...
2
votes
1answer
327 views

Windows certificate valid even after expired

I have a signed executable. The certificate for that signature says it is usable until 2007, still Windows (7 Professional) says it is valid if I'm opening it via properties dialog. How is that ...
2
votes
1answer
152 views

What source document format can be exported to PDF and generate digital signature fields?

My team wants to send out to 3rd parties a contract in PDF format, with digital signature fields that could be signed using Adobe Reader. Every time we add a new 3rd party to the contract, we are ...
1
vote
1answer
2k views

How does gpg handle multiple keys in a keypair?

As I understand it, keypairs used with gpg generally have more than one associated key: one for signing and one for encryption. How are these multiple keys managed when using gpg (to push to a ...
5
votes
2answers
18k views

How to install unsigned drivers on Windows 7?

I'm trying to install FreeOTFE on 64bit Windows 7. FreeOTFE comes with many drivers for various encryption algorithms, that need to be installed. Windows gives me the error, that since those aren't ...
1
vote
1answer
146 views

Viewing hd location of installed certificates in firefox

I recently installed a digital id/certificate from verisign and was wondering if there is a way to view the certificate location on my computer. I installed it according to their instructions through ...
4
votes
1answer
1k views

How do I digitally sign a 64-bit kernel mode driver?

I have a kernel mode driver and I have to install it on 64 bit win 7. It needs to be digitally signed. I digitally signed it using the dseo13b.exe. But when I load the driver I get error in the system ...
3
votes
1answer
137 views

Can signature verification expose a rootkit?

I know that rootkits operate as part of the kernel, driver or service running on the system, injecting themself into DLLs or installing as a legitimate applications. If I were to scan the system with ...
23
votes
3answers
4k views

Is it possible to sign a file using an ssh key?

I use SSH (OpenSSH 5.5p1 on Linux, to be precise). I have a key, on which i have a passphrase. I use this for the usual logging in to computers stuff. Can i also use it to sign files? As i ...
1
vote
1answer
335 views

Multiple Enigmail User IDs for multiple accounts in Thunderbird?

I have multiple email accounts set up in Thunderbird 3.1.10 in Mac OS X 10.6.7, and have just installed latest GnuPG and Enigmail. The Enigmail setup wizard helped me set up a Key for signing emails, ...
2
votes
0answers
472 views

Outlook sends mail twice in a row

I have a problem with Outlook 2010. When I try to send a mail with digital signature, Outlook sends the mail twice in a row. Both mails look identical and both have the smime.p7s attachment. When I ...
2
votes
1answer
188 views

Can I use GnuPG to verify that a file is unmodified and comes from the correct sender?

Can I use GnuPG to verify that a file is unmodified and comes from the correct sender? Let's take a simple use case: I have this file with some important content, let's say it is in a .tar.gz file. ...
6
votes
2answers
2k views

How can I digitally sign a PDF document quickly and cheaply?

I need to digital sign a PDF document. However, Acrobat reader does not let me sign documents. I just need to sign the document, not edit it. Do I need to buy the full Acrobat software? Or is there ...
1
vote
1answer
862 views

Why would Process Explorer be unable to verify signature of PortableApps.exe?

i'm running a program called PortableApps, which includes an executable called PortableAppsPlatform.exe. The Portable Apps executable is digitally signed: And the digital certificate is valid and ...
1
vote
1answer
1k views

Qualified S/MIME signature with Thunderbird

Is it possible to send S/MIME digitally signed email with Mozilla Thunderbird using qualified digital signing smart card? How?
0
votes
1answer
388 views

How can I unzip a file which is compressed and encrypted with pkzip?

How can I unzip a file which is compressed with pkzip file format (pkware)? Does anyone know about pkware file compression and decryption? I have a file which is zipped with pkware, but I can't open ...
5
votes
5answers
5k views

GnuPG Command Line - Verifying KeePass Signature

I'm trying to verify the PGP Signature of the latest version of KeePass 2.14's setup file against this signature, but this is the output I receive: C:\Program Files (x86)\GNU\GnuPG>gpg.exe ...
0
votes
1answer
453 views

Are there only four Digital ID providers for Office 2007/2010?

Is there nobody else other than the four listed at http://office.microsoft.com/en-us/marketplace/CE001095531.aspx ? I am not looking for a buying recommendation, just alternatives.
0
votes
1answer
24k views

How can I electronically sign an MS Word Document on the Mac?

I'd like to electronically sign an MS Word document so I can send it over to someone without having to print it and manually sign it. I have no idea where to begin with this, though. How do you go ...
2
votes
1answer
344 views

Does a certificate authority (CA) have to be online constantly?

Does a CA has to be online all the time in order for the whole system to work? For example, if I go to a secure webpage that uses a certificate signed by a CA, I receive a public key along with the ...
0
votes
1answer
340 views

Email in Digital Signature

How do you add an email to your digital signature details? Digital signature details are found when a file is signed for instance by VeriSign. You then right-click on the file and choose "Digital ...
2
votes
1answer
218 views

Hardware digital signature

Is it possible to show how generate a digital signature, a checksum, or something along those lines based on your computer hardware using an Ubuntu Live CD? So, once the first digital signature is ...
1
vote
2answers
2k views

Is there a guide to setting up Mozilla Thunderbird to use my GPG keys to sign and/or encrypt email messages on Windows?

I see instructions on websites and questions here about using GPG keys with Thunderbird in Linux, but nothing on Windows. I have GPG, Kleopatra, and Thunderbird 3 installed on Windows, I made my GPG ...
2
votes
1answer
3k views

Relation between .p7b and .spc digital certificate files

My company have just renewed their digital certificate from Thawte. The previous certificate I was using had an 'spc' extension. The new certificate I've been handed ends in a 'p7b'. Although I can ...