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1
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1answer
26 views

Word 2007 - two digital signatures (with a change in between)

In Word 2007, I'm trying to create a form for providing a procedure to deviate from rules. A user would enter some information and sign the form. Someone else would then select APPROVED or REJECTED ...
0
votes
1answer
41 views

How do I verify a Microsoft Visual C++ Redistributable installation

I recently installed a (digitally signed) program and the installer launched an internally packaged Microsoft Visual C++ redistributable installer halfway in. I scanned the program and checked its ...
1
vote
1answer
31 views

Is necessary digitally sign a document more than once?

I usually sign a lot of documents digitally to send over email, and usually I just sign the document digitally once. But recently I've been told that I need to paste a digital sign in every place I ...
3
votes
2answers
1k views

How to sign a pdf in Okular or other FOSS program?

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
0answers
18 views

Fill & sign in Acrobat DC Pro like in Acrobat DC

The usual instructions on how to draw a signature seem to apply to Acrobat DC, not Acrobat Pro DC. This is how it looks like: But in Acrobat Pro DC this item doesn't exist: So how do I fill &...
-1
votes
2answers
47 views

When trying to create an MSI getting error has no digital signature, or has a digital signature that is not verified

When we are trying to generate an MSI using a tool supplied by HP ALM, we get the following error This is happening only on one machine but works fine on other machine so we think something is wrong ...
1
vote
1answer
79 views

Windows Explorer file property does NOT show digital signature info for some system file, why?

For example, PEauth.sys on Windows 7 and 8.1. Windows Explorer file property dialog does not show Digital Signature tab for this file, but Sysinternal sigcheck.exe says it is digitally signed. Can ...
3
votes
2answers
5k 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 (...
3
votes
1answer
131 views

Git can't invoke gpg-agent to sign commits

I have Git 2.8.1 running in Ubuntu 15.10, and I've set it up to GPG sign all of my commits using my keybase key. It used to work well. At one point, I'm not sure what caused it, I started getting ...
0
votes
2answers
100 views

Lotus Notes: issue when import Symantec/Verisign certificate

In order to sign/encrypt Email I have installed Verisign S-Mime Certificate from Verisign and exported it from IE as a .pfx (PKCS #12). My problem is when I tried to import it in Security > My ...
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
0answers
36 views

Digital certificate - “A smart card was detected but is not the one required for the current operation”

I need to sign a document digitally on a website using a certificate installed on my computer. When I try to sign I get "A smart card was detected but is not the one required for the current operation"...
2
votes
0answers
317 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 ...
1
vote
0answers
35 views

Digitally sign latex pdf document with CA

I would like to know, if it is possible to digitally invisible sign a pdf created by latex automatically after each time I create the document (I'm using Texnic Center) or after I created the ...
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 ...
0
votes
0answers
64 views

Getting error when trying sign data1.cab file using signtool.exe

I am getting below error when tried to sign Data1.cab file using signtool.exe with some test certificate. SignTool Error: An unexpected internal error has occurred. Error information: "Error: ...
3
votes
2answers
472 views

Signtool can't do SHA256 signing on Windows 7

I have been using SHA1 signing for many years, but from 2016, Windows is forcing developers to use SHA256. Windows Enforcement of Authenticode Code Signing and Timestamping By using Windows 7 SDK ...
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.
1
vote
0answers
27 views

Word to Pdf with assigned location for pdf signature [closed]

I've been able to add digital signature locations on both word an pdf files for a while now. However some of my word files are automaticly generated and than saved as PDF. when this file is saved I ...
0
votes
1answer
12 views

Is enrollment certificate a result of an export of the signing certificate

Newbie on digital signatures... Does the certificate that users would import come from me exporting from the signing certificate?
-1
votes
1answer
254 views

Disable driver signature enforcement for single driver installation only?

I just finished troubleshooting How can I enable two finger scrolling on Synaptic TouchPad in Windows 10? and sites: http://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_devices/...
1
vote
0answers
77 views

Setting up secure email on Thunderbird

I'm trying to set Thunderbird up to send/receive encrypted emails. Here is a screenshot from the screen where you can select certificates: However, it doesn't really explain the difference between ...
1
vote
1answer
19 views

Is there a way to make cygwin setup remember the -K option

I'm using cygwin 64-bit on Windows 8. I've also gotten some packages from the Cygwin Ports project. The instructions on the Cygwin Ports site for running cygwin setup include: cygstart -- /path/to/...
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 ...
1
vote
2answers
7k 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 ...
2
votes
2answers
73 views

Why is package/code signing considered more secure, and how does it work?

Kind of a noob question, but I've been reading about signing and how it makes linux distros more secure. Docker recently added image signing, which seems cool. Why is this so important? Just because I ...
1
vote
0answers
106 views

How to verify a software package using SHA256 checksums and PGP or GnuPG keys, on Windows?

I'd like to verify the Vagrant installation method using their recommended verification method. On the installation page it says: You can find the SHA256 checksums for Vagrant 1.7.4 online and you ...
0
votes
1answer
91 views

Verify that a GPG-encrypted file is signed by particular user(s)

I've got a file encrypted and signed by GPG. In the man page for gpg, for the --decrypt option, it says: If the decrypted file is signed, the signature is also verified. I'd like to do more ...
0
votes
1answer
968 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 ...
2
votes
1answer
199 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. ...
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 ...
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 ...
0
votes
1answer
264 views

Verify signed file using GPG by passing in signature hosted online rather than stored locally (i.e. in keyring)?

Is it possible to pass the URL of a GnuPG signature when executing a verify query against a signed file? For example, instead of: gpg --verify file.txt Is there a variation of something like: gpg ...
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 ...
2
votes
1answer
125 views

How much information is included with a GPG signature?

Let's say you verify someone's signature with GPG: $ gpg --decrypt statement.txt.sig "I am not a crook." gpg: Signature made 17 Nov 1973 9:31:50 AM CDT using RSA key ID 92861D99 gpg: Good signature ...
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 ...
0
votes
1answer
137 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 ...
2
votes
1answer
904 views

Sign & Encrypt vs. Encrypt & Sign - What does GPG do?

I’ve already read the discussion Should we sign-then-encrypt, or encrypt-then-sign? and the paper Defective Sign & Encrypt in S/MIME, PKCS#7, MOSS, PEM, PGP, and XML. My question has to do with ...
3
votes
1answer
588 views

gpg: Can't check signature (FreeBSD)

I follow this SA https://www.freebsd.org/security/advisories/FreeBSD-SA-14:18.openssl.asc [FreeBSD 10.0] <= My FreeBSD version fetch <link>/openssl-10.0.patch fetch <link>/openssl-...
0
votes
1answer
918 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 ...
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 ...
2
votes
1answer
23 views

What is the minimum amount of data I need to sign a file?

Let's say I have a multi-gigabyte file on a work computer, and (2) I have my private GnuPG key on my home computer. I want to sign the really big file with my private key. I trust my home computer ...
6
votes
3answers
4k 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 ...
0
votes
0answers
254 views

How to disable test mode while keeping warning for unsigned drivers (Windows 10)

I looked online but what I found are only ways to disable driver signature verification on Windows 8, 10 to be able to use unsigned drivers. This is not what I need. In my case (Windows 10 64 bit) I ...
1
vote
0answers
54 views

How do I automatically sign HTML emails with Enigmail and Thunderbird?

I can't sign HTML messages with Enigmail. Even though "Sign messages" is checked as the default, when I look at the source of the draft or sent messages, there is no signature. View Source ...
7
votes
1answer
13k 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 (...
0
votes
0answers
80 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 ...
2
votes
1answer
367 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 ...
-1
votes
1answer
129 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 ...