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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1answer
851 views

Can I be a root certificate authority for my local network?

This may sound crazy, but can I be the root certificate authority? I mean, I have many computers and smart devices in my home. Remote Desktop warns for the certificate not being trusted, because it ...
3
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1answer
1k views

Outlook 2013, multiple email accounts and encrypted email: Only last S/MIME settings used

I have multiple email accounts properly setup in Outlook 2013 (can send/receive fine otherwise). Lets say they are: user1@domain1.com user2@domain2.com user3@domain3.com All belong to me and I have ...
0
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1answer
562 views

Event ID 91 — AD CS Active Directory Domain Services Connection

I have installed AD CA and I am getting this error(Event ID 91) : A connection to Active Directory Directory Services could not be established. Active Directory Certificate Services will try to ...
7
votes
1answer
8k views

Can self-signed SSL certificate be renewed? How?

I'm fairly new to SSL certificates and would like to know if a self-signed certificate which I use for HTTPS can be renewed to extend its expiry date without all clients of the site having to go ...
2
votes
2answers
3k views

What is the difference between a certificate and a key with respect to SSL?

Whenever I try to understand anything about SSL I always have a hard time keeping track of what "key" and "certificate" refer to. I fear many people use them incorrectly or interchangeably. Is there ...
4
votes
3answers
9k views

Check expiry date of ssl certificate for multiple remote servers

I can find out the expiry date of ssl certificates using this OpenSSL command: openssl x509 -noout -in <filename> -enddate But if the certificates are scattered on different web servers, how ...
2
votes
1answer
501 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? ...
1
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1answer
98 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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0answers
41 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 ...
0
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1answer
898 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
353 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 ...
0
votes
1answer
69 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 ...
2
votes
0answers
270 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 ...
0
votes
1answer
57 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 ...
0
votes
1answer
368 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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votes
2answers
99 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 ...
0
votes
0answers
87 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 ...
0
votes
1answer
80 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 ...
0
votes
1answer
383 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
1k 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 ...
0
votes
1answer
459 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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3answers
93 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 ...
2
votes
1answer
190 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 ...
0
votes
1answer
627 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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vote
1answer
324 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 ...
0
votes
1answer
70 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 ...
18
votes
1answer
15k 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 ...
0
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0answers
535 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
99 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 ...
3
votes
1answer
561 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 ...
0
votes
1answer
117 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 ...
0
votes
1answer
371 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
votes
1answer
273 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
56 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. ...
3
votes
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
votes
3answers
2k 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
106 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
votes
1answer
84 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 ...
0
votes
1answer
115 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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vote
0answers
596 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
votes
1answer
363 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) ...
1
vote
1answer
7k 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 ...
0
votes
1answer
110 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 ...
5
votes
3answers
26k 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 ...
1
vote
2answers
445 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
1k 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
345 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 ...
1
vote
1answer
2k 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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vote
1answer
76 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
votes
1answer
590 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 ...