Ssl Generate Private Key From Ca-bundle Or P7b Rating: 9,5/10 4135 votes

I need .pfx file to install https on website on IIS.

Generate private key and CSR on web server. Submit CSR to DigiCert. Get a signed certificate back as well as their root certificate and intermediate certificate (CA-BUNDLE). Upload the certificate and CA-BUNDLE to the webserver via cPanel, Plesk, we. My question is. Sep 13, 2019 SSL certificate is used to make a website a secure. Secured Socket Layer(SSL works on an algorithm to encrypt data exchanged between browser and server. It makes data between request unreadable and unbreakable for the interceptors or hackers. Third partyRead More→.

Sep 19, 2019 Comodo may send you a complete CA bundle in a zip file with a.ca-bundle extension or root and intermediate certificates separately. In case you have received the intermediate and root certificates as separate files, you should combine them into a single one to have a complete CAbundle. Jul 09, 2019 If the Private Key key file is lost, you’ll need to reissue your Certificate. Can I generate a new Private Key for my Certificate if I lose the old one? You can generate a new private key and CSR, or use the automatic CSR and key generation during Certificate reissue (this option is available for all Certificates except for the Multi. A PFX file is a binary format file for storing the server certificate, any intermediate certificates, and the private key in one encrypt-able file. Convert P7B to PFX. Note that in order to do the conversion, you must have both the certificates cert.p7b file and the private key cert.key file. $ openssl pkcs7 -printcerts -in cert.p7b -out cert.cer. I have an SSL certificate in.p7b format that I need to convert to.pfx. If I try this through the windows certificate managment the option to expert as a.pfx is disabled. Trying with openssl.

Ssl Generate Private Key From Ca-bundle Or P7b Download

I have two separate files: certificate (.cer or pem) and private key (.crt) but IIS accepts only .pfx files.

I obviously installed certificate and it is available in certificate manager (mmc) but when I select Certificate Export Wizard I cannot select PFX format (it’s greyed out)

Are there any tools to do that or C# examples of doing that programtically?

Answers:

You will need to use openssl.

openssl pkcs12 -export -out domain.name.pfx -inkey domain.name.key -in domain.name.crt

The key file is just a text file with your private key in it.

You can install openssl from here: openssl

Answers:

The Microsoft Pvk2Pfx command line utility seems to have the functionality you need:

Pvk2Pfx (Pvk2Pfx.exe) is a command-line tool copies public key and private key information contained in .spc, .cer, and .pvk files to a Personal Information Exchange (.pfx) file.
http://msdn.microsoft.com/en-us/library/windows/hardware/ff550672(v=vs.85).aspx

Note: if you need/want/prefer a C# solution, then you may want to consider using the http://www.bouncycastle.org/ api.

Answers:

Ssl Generate Private Key From Ca-bundle Or P7b To Crt

If you’re looking for a Windows GUI, check out DigiCert. I just used this and it was fairly simple.

Under the SSL tab, I first Imported the Certificate. Then once I selected the Certificate I was able to export as a PFX, both with and without a keyfile.

Answers:

You do NOT need openssl or makecert or any of that. You also don’t need the personal key given to you by your CA. I can almost guarantee that the problem is that you expect to be able to use the key and cer files provided by your CA but they aren’t based on “the IIS way”. I’m so tired of seeing bad and difficult info out here that I decided to blog the subject and the solution. When you realize what’s going on and see how easy it is, you will want to hug me 🙂

SSL Certs for IIS with PFX once and for all – SSL and IIS Explained – http://rainabba.blogspot.com/2014/03/ssl-certs-for-iis-with-pfx-once-and-for.html

Use IIS “Server Certificates” UI to “Generate Certificate Request” (the details of this request are out of the scope of this article but those details are critical). This will give you a CSR prepped for IIS. You then give that CSR to your CA and ask for a certificate. Then you take the CER/CRT file they give you, go back to IIS, “Complete Certificate Request” in the same place you generated the request. It may ask for a .CER and you might have a .CRT. They are the same thing. Just change the extension or use the . extension drop-down to select your .CRT. Now provide a proper “friendly name” (*.yourdomain.com, yourdomain.com, foo.yourdomain.com, etc..) THIS IS IMPORTANT! This MUST match what you setup the CSR for and what your CA provided you. If you asked for a wildcard, your CA must have approved and generated a wildcard and you must use the same. If your CSR was generated for foo.yourdomain.com, you MUST provide the same at this step.

Answers:

I got a link with your requirement.Combine CRT and KEY Files into a PFX with OpenSSL

Extracts from the above link:

First we need to extract the root CA certificate from the existing
.crt file, because we need this later. So open up the .crt and click
on the Certification Path tab.

Click the topmost certificate (In this case VeriSign) and hit View
Certificate. Select the Details tab and hit Copy to File…

Ssl Generate Private Key From Ca-bundle Or P7b 10

Select Base-64 encoded X.509 (.CER) certificate Save it as rootca.cer
or something similar. Place it in the same folder as the other files.

Rename it from rootca.cer to rootca.crt Now we should have 3 files in
our folder from which we can create a PFX file.

Here is where we need OpenSSL. We can either download and install it
on Windows, or simply open terminal on OSX.

EDIT:

  1. There is a support link with step by step information on how to do install the certificate.

  2. After successfully install, export the certificate, choose .pfx format, include private key.

    Important Note: : To export the certificate in .pfx format you need to follow the steps on the same machine from which you have requested the certificate.

  3. The imported file can be uploaded to server.

Answers:

You need to use the makecert tool.

Open a command prompt as admin and type the following:

Where <CertifcateName> = the name of your cert to create.

Then you can open the Certificate Manager snap-in for the management console by typing certmgr.msc in the Start menu, click personal > certificates > and your cert should be available.

Here is an article.

Answers:

This is BY FAR the easiest way to convert *.cer to *.pfx files:

Just download the portable certificate converter from DigiCert:
https://www.digicert.com/util/pfx-certificate-management-utility-import-export-instructions.htm

Execute it, select a file and get your *.pfx!!

Answers:

When you say the certificate is available in MMC, is it available under “Current User” or “Local Computer”? I’ve found that I can only export the private key if it is under Local Computer.

You can add the snap in for Certificates to MMC and choose which account it should manage certificates for. Choose Local Computer. If your certificate is not there, import it by right clicking the store and choosing All Tasks > Import.

Now navigate to your imported certificate under the Local Computer version of the certificate snap in. Right click the certificate and choose All Tasks > Export. The second page of the export wizard should ask if you want to export the private key. Select Yes. The PFX option will now be the only one available (it is grayed out if you select no and the option to export the private key isn’t available under the Current User account).

You’ll be asked to set a password for the PFX file and then to set the certificate name.

Answers:

(( relevant quotes from the article are below ))

Next, you have to create the .pfx file that you will use to sign your deployments. Open a Command Prompt window, and type the following command:

where:

(Optionally (and not for the OP, but for future readers), you can create the .cer and .pvk file from scratch) (you would do this BEFORE the above). note the mm/dd/yyyy are placeholders for start and end dates. see msdn article for full documentation.

Answers:

I created .pfx file from .key and .pem files.

Like this openssl pkcs12 -inkey rootCA.key -in rootCA.pem -export -out rootCA.pfx

Answers:

I was having the same issue. My problem was that the computer that generated the initial certificate request had crashed before the extended ssl validation process was completed. I needed to generate a new private key and then import the updated certificate from the certificate provider. If the private key doesn’t exist on your computer then you can’t export the certificate as pfx. They option is greyed out.

Answers:

I know a few users have talked about installing this and that and adding command lines programmes and downloading…

Personally I am lazy and find all these methods cumbersome and slow, plus I don’t want to download anything and find the correct cmd lines if I don’t have to.

Best way for me on my personal IIS server is to use RapidSSLOnline. This is a tool that’s on a server allows you to upload your certificate and private key and is able to generate a pfx file for you that you can directly import into IIS.

The link is here:
https://www.rapidsslonline.com/ssl-tools/ssl-converter.php

Below is the steps used for the scenario requested.

  1. Select Current Type = PEM
  2. Change for = PFX
  3. Upload your certificate
  4. Upload your private key
  5. If you have ROOT CA cert or intermediate certs upload them too
  6. Set a password of your choosing, used in IIS
  7. Click the reCaptcha to prove you’re not a bot
  8. Click Convert

And that’s it you should have a PFX downloaded and use this in your Import process on IIS.

Hope this helps other like minded, lazy tech people.

Answers:

In most of the cases, if you are unable to export the certificate as a PFX (including the private key) is because MMC/IIS cannot find/don’t have access to the private key (used to generate the CSR). These are the steps I followed to fix this issue:

  • Run MMC as Admin
    • Generate the CSR using MMC. Follow this instructions to make the certificate exportable.
  • Once you get the certificate from the CA (crt + p7b), import them (PersonalCertificates, and Intermediate Certification AuthorityCertificates)
  • IMPORTANT: Right-click your new certificate (PersonalCertificates) All Tasks..Manage Private Key, and assign permissions to your account or Everyone (risky!). You can go back to previous permissions once you have finished.
  • Now, right-click the certificate and select All Tasks..Export, and you should be able to export the certificate including the private key as a PFX file, and you can upload it to Azure!

Hope this helps!

Answers:

Although it is probably easiest to generate a new CSR using IIS (like @rainabba said), assuming you have the intermediate certificates there are some online converters out there – for instance:
https://www.sslshopper.com/ssl-converter.html

This will allow you to create a PFX from your certificate and private key without having to install another program.

Tags: file

While Encrypting a File with a Password from the Command Line using OpenSSLis very useful in its own right, the real power of the OpenSSL library is itsability to support the use of public key cryptograph for encrypting orvalidating data in an unattended manner (where the password is not required toencrypt) is done with public keys.

The Commands to Run

Generate a 2048 bit RSA Key

You can generate a public and private RSA key pair like this:

openssl genrsa -des3 -out private.pem 2048

That generates a 2048-bit RSA key pair, encrypts them with a password you provideand writes them to a file. You need to next extract the public key file. You willuse this, for instance, on your web server to encrypt content so that it canonly be read with the private key.

Export the RSA Public Key to a File

This is a command that is

openssl rsa -in private.pem -outform PEM -pubout -out public.pem

The -pubout flag is really important. Be sure to include it.

Next open the public.pem and ensure that it starts with-----BEGIN PUBLIC KEY-----. This is how you know that this file is thepublic key of the pair and not a private key.

To check the file from the command line you can use the less command, like this:

less public.pem

Do Not Run This, it Exports the Private Key

A previous version of the post gave this example in error.

openssl rsa -in private.pem -out private_unencrypted.pem -outform PEM

The error is that the -pubout was dropped from the end of the command.That changes the meaning of the command from that of exporting the public keyto exporting the private key outside of its encrypted wrapper. Inspecting theoutput file, in this case private_unencrypted.pem clearly shows that the keyis a RSA private key as it starts with -----BEGIN RSA PRIVATE KEY-----.

Visually Inspect Your Key Files

It is important to visually inspect you private and public key files to makesure that they are what you expect. OpenSSL will clearly explain the nature ofthe key block with a -----BEGIN RSA PRIVATE KEY----- or -----BEGIN PUBLIC KEY-----.

You can use less to inspect each of your two files in turn:

  • less private.pem to verify that it starts with a -----BEGIN RSA PRIVATE KEY-----
  • less public.pem to verify that it starts with a -----BEGIN PUBLIC KEY-----

The next section shows a full example of what each key file should look like.

The Generated Key Files

The generated files are base64-encoded encryption keys in plain text format.If you select a password for your private key, its file will be encrypted withyour password. Be sure to remember this password or the key pair becomes useless.

The private.pem file looks something like this:

The public key, public.pem, file looks like:

Protecting Your Keys

Depending on the nature of the information you will protect, it’s important tokeep the private key backed up and secret. The public key can be distributedanywhere or embedded in your web application scripts, such as in your PHP,Ruby, or other scripts. Again, backup your keys!

Remember, if the key goes away the data encrypted to it is gone. Keeping aprinted copy of the key material in a sealed envelope in a bank safety depositbox is a good way to protect important keys against loss due to fire or harddrive failure.

Oh, and one last thing.

If you, dear reader, were planning any funny business with the private key that I have just published here. Know that they were made especially for this series of blog posts. I do not use them for anything else.

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