Public key certificate - also digital certificate or identity certificate. A document that contains information about a user's or machine's identity, matched up with its public key, and is validated and cryptographically signed by a certificate authority. Certificates are intended to provide a ...

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How to generate/obtain key for Gmail relay

I want to configure my server so that all emails are not meant for local users were relay through my Gmail account using Postfix. In all the examples I've found to do this you need a certificate to ...
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0answers
90 views

Can self-signed S/MIME certificates be renewed/extended?

When generating a self-signed S/MIME certificate, an expiration date is set. That way, if it gets lost at least it becomes invalid someday. Now, is it possible to extend the expiration date after the ...
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1answer
373 views

Alternatives to SSH x509 logon

I have a Windows 7 machine which is not part of domain, and a Linux machine. I want to login to Linux from Windows using an x509 certificate stored in windows certificate store. Is it possible? ...
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1answer
78 views

FireFox: force forget own client certificates

I'm using FireFox 22.0 on Windows 7 and have a couple of client certificates registered which are outdated now. When I go to Tools|Options|Advanced|Encryption|View Certificates|Your Certificates, ...
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35 views

How to only accept certificates issued by user-specified CA per domain?

Question Is it possible in Chromium or Firefox to only accept SSL certificates issued by a user-specified CA for a specific domain? Background When you have set up your own certificate authority ...
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1answer
572 views

How can I print/display the “User Principal Name” or UPN of a “p12” certificate on Linux?

My company sent me a certificate for my smart phone. The file name is "3274634.p12". The documentation says "Enter your User Principal Name (UPN) as login" and it describes how to get this value using ...
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1answer
248 views

In Mutt, how to extract key from a S/MIME signed message to reply encrypted?

I have a certificate signed message in my inbox. The public certificate of the sender should be available there. How do I extract and use it to send back an encrypted message? Note: I configured GPG ...
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1answer
58 views

How to make use of a free SSL certificate?

I'm using Network Solutions, who want me to give them $50 or $100 per year to have SSL protection with my hosting. I keep hearing about free SSL certificates though. Can I really use one of those with ...
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212 views

Setup Ubuntu L2TP VPN server and authenticate users with certificates

I am trying to setup an L2TP server on my Ubuntu VPS and use certificates to authenticate users rather than a password. The reason behind this choice is that I don't want to have plain text passwords ...
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1answer
48 views

Is it possible to use client certificates to identify a single workstation to a web site?

Basically, I need to uniquely identify a client PC from an intranet webserver for all users that log on. I am considering reliable methods of doing this and am currently considering using client ...
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1answer
290 views

Restrict export of private keys in the Windows certificate store using a password

In the Windows certificate store, I am looking for a way (if it is possible) to store a public/private pair and keep the private exportable, BUT restrict the export to only those that know a password. ...
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2answers
91 views

apply for SSL certificate for hidden websites [closed]

We have a proxy and several hidden web servers in different locations. Internet users can visit these hidden web servers only through the proxy, so only the proxy IP is public. The IPs of the web ...
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2answers
2k views

Example of invalid or expired certificate

Are there any sites that will give me invalid and expired certificate? I need to do some work dealing with those messages, but I can't seem to find any pages that will give me those errors. Do you ...
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0answers
63 views

Import a certificate on Linux

I need help with importing a certificate on my Linux. here is the status : I have a linux Centos 6.4 server with Apache installed. On a windows server, i have BSF. This BSF is secured and in order to ...
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1answer
65 views

x590cafile default location for gnutls-cli

I am using gnutls-cli from Cygwin, on a laptop running Windows XP Home (I have openssl from cygwin also). I am wondering where does gnutls-cli look for CA certificates if I don't specify option ...
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1answer
254 views

Certificate errors on irc.pirateirc.net

I'm having trouble making a secure connection to the IRC server at irc.pirateirc.net. gnutls doesn't recognise the SSL certificate issuer, even though the certificate is issued by a regular CA ...
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2answers
642 views

How to use the certificates on a smart card without the physical card?

I recently extracted the certificates from my smart card and imported them into Firefox. However, when I tried logging in to several smart-card-enabled websites, I received an error message (Error ...
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1answer
386 views

How to add self signed certificate to certificate bundle?

How to add self signed certificate to certificate bundle so that the Curl http client can verify the self signed certificate as valid one?
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2answers
78 views

Delete certificate for specific website

When I go to github, Chrome warns me that "The site's security certificate is not trusted!" I am sure I am using the correct URL. When I go to the same URL in Firefox, I don't get this issue. How do ...
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1answer
109 views

Pull certificate from Firefox without using Firefox

I have a Comodo email certificate installed in Firefox 20, and I've tried (and failed) many times to export the certificate as PKCS12 (error is "Failed to create the PKCS #12 backup file for unknown ...
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1answer
348 views

Eudora 7 says SSL certificate out of date

After using (sponsored) Eudora 7.1.0.9 on Windows 7 for years, it suddenly stopped importing new mail. Error message says the server certificate was rejected as one cert in the chain has expired. It ...
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1answer
184 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 ...
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1answer
49 views

Unrecognized root certificatication authority found

I was looking at the certificates on my local PC (Win 7 64-bit) and found one in the "trusted root certification authorities" section that has the same "Issued To" and "Issued By" names (as do most of ...
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1answer
8k views

How do I view the contents of a PFX file on Windows?

I have a PFX certificate file on my machine and I'd like to view the details before importing it. (The import utility doesn't actually tell you what the certificate is!). How do I view the details ...
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367 views

Recover certificate private key in Windows XP from backup files

Before an old Windows XP installation was removed all the files from Windows partition were backed up. A new Windows XP installation was then set up at the same partition. The certificate which is ...
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0answers
81 views

Windows Event Forwarding between two computer out of a domain

I've got two computers and I want to set up event forwarding between them. Source computer is out of a domain, another is in some Domain. I tried to configure source initiated event subscrption but it ...
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1answer
372 views

Windows: disable personal certificate from command line

In Windows XP I can do the following actions via UI: launch certmgr.msc from then select a certificate under Personal->Certificates, click on properties and select "Disable (or enable) for all ...
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1answer
86 views

How to determine if an application is signed with an extended validation (EV) code signing certificate

I know it is possible to view an application digital certificate by right-click->properties->digital signatures, but I cannot tell whether an application is signed with an EV or a regular code signing ...
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1answer
330 views

How do I create a private key when I have a certificate in a PKCS12 file?

I have client certificates for my email addresses from cacert.org and I have successfully stored themn as PKCS12 files and used them to sign emails in Thunderbird. However, when someone uses my ...
3
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1answer
224 views

How to make a self-signed client SSL certificate?

Well, how to make a client SSL certificate, which doesn't need an (external) certification authority? Is there a way and is any profit to use elliptic curves for that? What should i do to use it on ...
2
votes
1answer
47 views

How to monitor changes in security certificates?

We all like the pseudo-safety granted us by security certificates. It's beneficial in many ways, I'm not saying the contrary. However, I have a concern about my information privacy at my workplace. ...
2
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0answers
2k views

OpenVPN server certificate configuration instructions for DD-WRT router do not match user interface

I'm setting up the OpenVPN server daemon on a Buffalo N600 router which came stock with DD-WRT v.24 SP2. I'm following the instructions at VPN (The Easy Way) V24+ to set up the server side of things ...
2
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2answers
1k views

Cannot remove encryption from files on Windows 2008 R2

I have noticed that all of my web application files turned green color, which means they are encrypted. I have never applied encryption to these files. When I right-click the file, then go to ...
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0answers
101 views

Mac: Certificate expiration date is not consistent

In the Expires column of the Keychain Access application I can see the expiration date of certificates. Strangely these dates do not match the actual expiration. See below for an example. This ...
2
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1answer
72 views

What does renewing a certificate really mean?

Often one hears about "renewing an SSL certificate" or "renewing an X.509 certificate", but I wonder what this actually means. Usually, step #1 of the renewal process is "generate a new CSR". Doesn't ...
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1answer
92 views

Check site certificates from Linux CLI over SSH

Suppose that a website returns an invalid certificate, for which Firefox and Chrome give the user scary warnings. I would like to ensure that my local connection is not being man-in-the-middled (which ...
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0answers
417 views

Certificates in Iceweasel

I'm trying to make a backup of a certificate which is imported to iceweasel. So i#m following the steps Edit->Prereferences->Advanced->Encryption->View Certificates. Then I choose my certificate, and ...
3
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1answer
283 views

Why don't my certificates match?

I'm configuring a VPN with OpenVPN without interfaz, the problem is when I try to connect, it says: TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity) ...
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1answer
4k views

How to fix certificates verification creating a VPN (OpenVPN)?

Ok, I'll explain what I did... and at the end is the queston. THank you! To set up my VPN I installed OpenVPN in server and client machines. On server I configured the cert Authority in the file ...
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1answer
106 views

What is amsprd0311.outlook.com?

This morning when I opened my mail client I got a message saying that the identity of amsprd0311.outlook.com could not be verified. I tried searching for information about this but I haven't found ...
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3answers
18k views

How to turn off Opera server certificate messages?

While I'm browsing the Internet, Opera always pop out a lots of from these Server certificate expired boxes. Several times it pops out a tons from them and I have to click to Approve on each of them ...
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2answers
286 views

Find SSL Certificate in use

I would like to know which SSL certificate is used for accessing a certain website. In my browser (Chrome, FF), the icon next to the URL does not show a SSL connection. Also in Chrome it states "Your ...
2
votes
1answer
813 views

Windows 7: EFS and Windows backup (system image) - Certificates not included?

I just encrypted my C:\Users\Username folder with EFS. I also backed up my EFS certificate (.pfx). Now I wanted to do a backup of my computer on an external HDD. I want to use the integrated Windows ...
3
votes
1answer
246 views

Win 7 Certificate revocation information - correct way to handle it?

On one of my Win 7 (x64) computers I frequently get certifcate revocation dialogs. Most of them are somehow Java related, once in a while I get one for Xmarks. My main question is, what is the ...
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1answer
1k views

Why do I have untrusted certificates for Google, Yahoo, Mozilla and others?

In the HTTPS/SSL section of chrome://chrome/settings, I see the following: What does this mean, and is there something wrong? I have a basic understanding of SSL/TLS - I'm not claiming to be ...
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1answer
75 views

Redirected to piratenpartji.nl. What can I do?

a few hours ago, I found a link to Kickass Torrent, which is blocked in my country, Italy and went for it. The link worked just fine but wasn't able to save anything. I renounced and continued normal ...
0
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1answer
474 views

FTPS client certificate authentication

I'm installing FTPS server on debian with certificate-based authentication. I've set up ProFTPd and configured it to use TLS and a certificate (for testing purposed I use a self-signed one). Now I'd ...
2
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0answers
2k views

OpenVPN AUTH failure, but login data is correct

I installed OpenVPN on both windows 7 and ubuntu 12.10. In both cases I have the same problem. I have a .ovpn file and a .crt file which I need to connect to the vpn. I also have a username/password ...
2
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2answers
3k views

Receiving SSL certificate errors only from some clients

I am receiving SSL certificate errors from Chrome (latest version (23.0.1271.52 beta-m) and Internet Explorer 6 (not used) on my home desktop machine (Windows XP SP2). In Firefox, the site works fine ...
2
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1answer
8k views

Windows 7 root certificate updates

I work for a company that uses Windows 7 for end user computing. The Windows 7 computers are updated via a WSUS installation, and access to Microsoft Update is blocked. We have a problem with a ...