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-4
votes
2answers
41 views

About digital signatures. Are they really secure? [closed]

Let's suppose I want to send you an encrypted and signed message, to demonstrating authenticity and integrity, together with the natural security of asymmetric key cryptography. The procedure is, if ...
2
votes
1answer
498 views

Bad signatures or NOKEY errors on RPMs I just signed

I'm having serious problems getting RPM signing working for RHEL / CentOS 5 hosts. TL;DR: RPM signing isn't working, and it's working in a variety of insane and erratic ways depending on the exact ...
3
votes
2answers
135 views

Does Hyper-V support digital signatures with VHD disk files?

Does Hyper-V provide a mechanism (like ESX/vSphere) to identify digitally signed VHD files? Is it even possible to sign a VHD file? Background: I am trying to provide a virtual appliance to my ...
0
votes
1answer
34 views

Using DKIM in my server for multiple domains (websites)

As I couldn't find this exact tutorial in Stack, I share my findings with al of you. I always get things solved thanks to this comunity. Thanks! Original question: I've read the tutorial posted by ...
2
votes
1answer
64 views

How does one configure Windows not to execute tampered binaries?

To illustrate the benefits of digitally signing certificates, I wrote an .NET executable "demo.exe" which calls a function in "demo.core.dll". I digitally signed both executables. When executed, it ...
0
votes
1answer
92 views

.NET Window Service won't start when Signed with PFX file Windows Server 2012

I've successfully installed my Windows Service on a Server 2012 environment. It starts and works without issue when the Service executable is not signed. When I apply a PFX signing to the Service, it ...
1
vote
1answer
186 views

Code signing certificate not available to sign macros

We are trying to give one of our user the ability to sign his macros in Excel with a certificate issued by Certficate Authority. The Certificate Authority role is installed on the Domain Controller ...
2
votes
1answer
240 views

How to disable signature prompt for third-party provider in Microsoft Word?

In Microsoft Word if you click on Insert> SignatureLine, you will see this message: We provided our client the ability to sign their document via certificates automatically genereated using our ...
-3
votes
2answers
235 views

how to sign a binary in Linux? [closed]

I have a Linux device that needs to be able to perform a software update of some binaries that may be coming from an insecure source I'd like to find a way to sign these binaries using a ...
4
votes
1answer
1k views

RemoteApp shows no certificate available but RD Session host finds it fine

I am trying to set up remote app for a internal domain. I have a Root CA that is trusted my all of the end computers, that cert has signed a wildcard cert I am trying to use for the server. I added ...
0
votes
4answers
736 views

Is it possible to sign email with digital signature on server side?

I have nice iRedMail server (postfix, dovecot, policyd). One of my client apps sends email via this server. And client want to sign it with digital signature on server side. Is it even possible to do ...
0
votes
2answers
84 views

Support by Microsoft on Unsigned Driver

What is the support of Microsoft about unsigned drivers? They support a System with them? I'm looking for a document with the Windows Policy support and what they said about not drivers.
3
votes
2answers
277 views

Digitally signed FreeBSD package

In nasty world of Windows you can digitally sign installation package (exe) and during installation check if its authentic or not. Any idea how to check same under FreeBSD(preferably in conjunction ...
8
votes
4answers
4k views

Validating signature trust with gpg?

We would like to use gpg signatures to verify some aspects of our system configuration management tools. Additionally, we would like to use a "trust" model where individual sysadmin keys are signed ...
1
vote
1answer
193 views

Digital Certificate - changing encryption algorithm

Sorry if this is a silly question, but I'm new to all these certificates stuff :) Let's say I have a digital certificate issued by my company (for email) with: Signature algorithm: md5RSA Public ...
1
vote
2answers
442 views

RPM issues after signing JDK 1.6 64-bit

I'm trying to sign the Java JDK 1.6u21 64-bit RPM on CentOS 5.5 for use with Spacewalk and I'm running into problems. It seems to sign okay, but then when I check the signature it seems to be missing ...
5
votes
2answers
1k views

What are the advantages of DKIM?

After making my server sign outgoing email I started to wonder what the benefits are. This is the opposite of a previously asked question. Naively I see two benefits: We can throw away all emails ...
4
votes
2answers
438 views

Digital signatures and encryption in GMail

I just wonder if there is a way to use SSL certificates or PGP keys for signing my email. At the moment I have to setup S/MIME in Outlook (or another thick client) to send signed messages via SMTP. ...
0
votes
2answers
453 views

Digital signature service for individual users (signing documents)?

The environment is a Windows domain. Windows Server 2003 is the controller and all clients are running WinXP or better. Office 2003 (2007 soon) is used to create most documents. What I'm looking ...