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4
votes
1answer
462 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
119 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
430 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
vote
0answers
110 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 ...
2
votes
1answer
109 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
138 views

Combining GPG key signatures into one key file

I need help with GnuPG command line commands related to building the web of trust. I would like to have five signature added to my public lock before uploading it to the server. Ho can A simmilar ...
0
votes
1answer
196 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
68 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
4k 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
948 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 doesn'...
1
vote
1answer
378 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. ...
8
votes
2answers
5k 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 --using-...
2
votes
0answers
52 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
701 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
492 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
9k 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
179 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
1k 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
344 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
3k 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
791 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
294 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 ...
3
votes
1answer
3k 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 ...
3
votes
2answers
903 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
565 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
923 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
972 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 (...
2
votes
0answers
71 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
2k 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 http://timestamp.verisign.com/...
1
vote
0answers
8k 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 ...
6
votes
3answers
5k 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
178 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
1k 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
343 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 himself,...
2
votes
1answer
351 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
156 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
19k 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
148 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
143 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 ...
25
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
356 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
482 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
200 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 ...