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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Win XP - “Windows Was Unable To Find A Certificate To Log You On To The Network”

A friend of mine has an old Toshiba Satellite laptop. I just re-installed XP on it and I am trying to get the computer online via WIFI (WPA-PSK / AES). When I try to connect I get the following ...
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56 views

Can an SSL cert (not self-signed) be used to create another SSL cert for another host in the same domain?

I have a regular SSL certificate issued by Network Solutions for a given host, say "host A". Can I create another SSL cert for the wiki host that has the host A cert in its trust path and therefore ...
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221 views

S/MIME email Public Certificate?

Is there a way to create a public certificate for a S/MIME email certificate? I would like to share the public key on my website so people can send me encrypted emails. However I can only find ...
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2k views

Authentication required by wireless network

I would like to use a wireless network from Ubuntu. In the network drop-down menu I select a network (this is a University network I have an account there). Then I get a windows with the following ...
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2k views

List installed personal certificates in command line

I use a few secure websites that require me to install a PFX certificate to access them. I have multiple computers I do this from, and I need a quick way of determining which ones in which I still ...
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1answer
58 views

Will the browser ask the Certificate Authorities each time I visit some HTTPS?

I have basic ideas of how asymmetric encryption works. I as to HTTPS, all articles makes me confusing. I want to know: Will the browser ask the Certificate Authorities each time I visit some ...
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153 views

When loading Hotmail from Windows 8 icon, I receive an error about its digital certificates

When I try to load Hotmail using the desktop icon on a newly installed Windows 8 PC, I receive this error. "We couldn't connect to myname@hotmail.com because of a problem with its digital ...
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How can I get a list of installed certificates on Windows?

I know I have some certificates installed on my Windows 7 machine, how can I see what they are, the nicknames they are known by, and browse detailed information (such as issuer and available usage)?
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339 views

Signature validation based on the XMLSec standard

I've run into issues verifying the signature of an XML file based on the XMLSec standard. I'm running: xmlsec1 1.2.19 (openssl) Here's the certificate used for validation: wget -O cert.pem ...
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1answer
4k views

Every website is showing untrusted certificate warning on all browsers

I'm on windows 7. Every website is showing untrusted security warning. I tried every browser that I have. I tried using https. This is extremely odd, it never happened before, well it could happen ...
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2k views

openssl pkcs12 keeps removing the PEM passphrase from keystore's entry?

OpenSSL 1.0.1e 11 Feb 2013 Generating a self-signed certificate: openssl req -x509 -newkey rsa:1024 -keyout key.pem -out cert.pem -days 365 During the process a PEM passphrase is ...
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SSL certificate for CNAME record

I have the CNAME record images.bob.com, which points to the images.susan.co.uk (images.bob.com. 1800 IN CNAME images.susan.co.uk.). I would like to ask for issuing SSL certificate for the ...
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Firefox “invalid certificate” error for a trusted website (sec_error_reused_issuer_and_serial)

I am connecting to a website (via Firefox 6.0.2 on Mac OS X 10.6.8) I know is legitimate, and the connection worked up till yesterday. However, when I connected to day I got the following error: ...
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419 views

Unable to continue after certificate error i IE

I am on a closed HP ILO network, and I am trying to access the web interface (https) of a HP c7000 Onboard Administrator (though I do not believe this is an issue specific to the equipment) through ...
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112 views

Bogus Chrome Installer?

Just a few days ago I tried to download Chrome (using IE 11) to a new Windows 7 system. I examined the certificate for the Chrome installer (clicking on the highlighted Google Inc. next to ...
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1answer
1k views

Can not combine two CA certificate files to a CA certificate chain

Ι' m trying to concatenate two valid self-signed CA pem files generated using openssl in order to import a single CA file in Firefox (client side), using the following command: cat CA_file0.pem ...
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1answer
490 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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612 views

How to make Firefox remember a self signed certificate is trusted

I'm using some private server with a self-signed certificate for https connections. Firefox 25.0 warns me about the certificate being untrusted every time. For some reason, I can't make it remember ...
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can UAC prevent reading a certficate?

Weird question with, hopefully, a short answer. I have this application running on windows 7 that calls a webservice through a .NET DLL. To be able to do that it needs to read some certificates, ...
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1answer
43 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 ...
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0answers
528 views

Chrome ignores some imported certificates

On Windows 7 with Chrome 30. I have a few websites running on localhost over SSL. Visiting them always displays the standard "The site's security certificate is not trusted!" message from Chrome. I ...
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1answer
93 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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3answers
446 views

Certificates signed by multiple CAs

Is it possible to have a OpenSSL Certificate signed by multiple CAs? Background: We have a CA to issue certificates mainly for our machine-to-machine communications. Now we need to make some services ...
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1answer
206 views

Intermediate SSL Cert

I have an SSL certificate that is self-signed, and therefore uses an intermediate certificate. I am using Node.js and returning both the certificate as well as the certificate chain which includes ...
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1answer
5k views

Cannot send encrypted message to others using Outlook 2010

I am unable to send encrypted messages to others in Outlook 2010. I get the following error: "Microsoft Outlook had problems encrypting this message because the following recipients had missing ...
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332 views

Remove Virus certificate attachments from Emails

When I'm receiving emails from PC having AVG antivirus, it's coming with virus certificate attachment file, to prove that there is no virus inside the email. I want to remove all those certificate ...
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2k views

The site's security certificate is not trusted! in Chrome

I'm behind my college firewall which uses a separate firewall.cer certificate. I was able to install in my firefox. So, gmail opened without any issues in firefox. But, i get the error and i'm unable ...
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464 views

Google.com Certificate Revoked

A few days ago, I noticed some issue with my internet connection. Some pages weren't loading all the way, and some connections needed to be restarted several times before they would resolve. I assumed ...
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1answer
97 views

Multiple certificates issued to localhost

My local build environment has a certificate issued to local host. I also had another one issued to localhost to run MVC in a browser (IIS express). These certificates interferred with each other, so ...
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2answers
112 views

Given one can IMAP upload emails to Gmail, how can one prove gmail content is original?

Given that one can upload emails to gmail via IMAP, via methods such as: http://email.about.com/od/gmailtips/qt/How_to_Import_Mail_from_Mozilla_Thunderbird_in_Gmail.htm Is there a method to prove ...
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0answers
55 views

SSL Certificate updates

In Windows or Linux system, how does the SSL certificate gets "updated" or "revoked"? By default some certificate comes while installing the OS / Browser. But later when that needs to be updated how ...
2
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2answers
498 views

How to restrict the usage flags for primary key-pairs in OpenPGP certificates?

More than one time I read recommendations to use the primary key-pair in my OpenPGP certificate only to sign sub-key-pairs and not for general daily use (even to keep the private key stored on a ...
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77 views

Recover Encrypted Files / Certificate

I have backup up some encrypted files onto an external HDD and forgotten to back up the certificate. I still have the original, unchanged HDD containing Win7 64, but as I've changed motherboard/CPU ...
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2answers
781 views

Parameters to create a self-signed DSA certificate on Ubuntu 12.04?

I would like to create a self-signed DSA certificate on Ubuntu 12.04 for use with a webserver and TLS 1.2 (HTTPS) connection. I found that you can run the following command to create an RSA one: ...
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1answer
266 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
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1answer
426 views

Outlook certificate error and separate send/receive error

I run a laptop with Vista 32bit and MS Office 2010. Outlook has two profiles, both configured as POP3/SMTP and neither go through an exchange server. Recently, one of the mail servers (hosted with ...
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1answer
228 views

Pages don't load after installing a certificate on tomcat, restart required

I posted this question before but not in the correct forum. I have configured tomcat7 to use SSL and have made it point to a keystore. The keystore has a self signed certificate by default. There are ...
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4answers
840 views

How to know if a new website can be trusted? [closed]

I am trying to find a way how to know if I can trust an internet site. Example 1: http://www.booksgreatchoice.com/ payment redirects to digitalbooksplace.com - bad thing only card in payment - bad ...
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1answer
33 views

Certificates not accessible while there are no active logins on webserver

My mvc application uses a certificate (stored in the Local Computer's 'Root Certification Authority' store), but cannot seem to access it while the web-server doesn't have any active users logged in ...
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1answer
75 views

Using my ssl certificate to a sub domain

I have a webshop build in Wordpress hosted in Apache. I have created a new version for my front end, build in Google App Engine. What I want to achieve is my naked domain to point at App Engine and a ...
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1answer
356 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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1answer
2k views

Error installing certificates with private keys

I got a PFX file with a private key (it was imported from another Windows installation and the button "Export Private Keys" was pressed). I installed it, and got the message that the import was ...
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1answer
854 views

Windows certificate manager restore private key somehow

This is may sounds very strange but let me explain a situation: I was using my PKI Private Key installed at Windows Certificate Storage I get token, so I decided to load them to token and delete them ...
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1answer
789 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 ...
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15k views

Remote Desktop Connection - How to get the certificate prompt back?

I just tried remoting to my work PC from home and got the "identity cannot be verified" prompt like the one below. I marked the "Don't ask me again for connections to this computer" box, and then ...
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1answer
4k views

“A system-level error occurred while verifying trust” windows update

I get this message when trying to update windows. After some research and reading some posts (there aren't that many knocking about) i found out that the problem could possibly be my ...
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1answer
541 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 ...
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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 ...
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2answers
2k 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 ...
5
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1answer
830 views

Host-based snakeoil certificates in Ubuntu

How to create snakeoil a certificate and a key for a given host in Ubuntu?