how do i add san to certificate request

Full Answer

How to add a San to an existing certificate?

Here`s a summary of the steps involved for adding a SAN: 1. Generate a new CSR. 2. Access the user portal. 3. Reissue Certificate from the user portal. 4. Contact support. 1. Generate a new CSR/private key pair. Anytime a SAN is added to an existing cert, a new CSR is required.

How do I configure a CA to accept a San attribute?

Configure a CA to accept a SAN attribute from a certificate request. Create and submit a certificate request to an enterprise CA. Create and submit a certificate request to a stand-alone CA. Create a certificate request by using the Certreq.exe tool. Create and submit a certificate request to a third-party CA.

How do I add San information to the CSR?

This method adds SAN information to the CSR in the form of a certificate request attribute. A certificate request attribute in this case can only be outside the signed portion of the original request, and is therefore not considered safe. Adding SAN information in this manner means that the SAN information can modified at any time, and by anyone.

How do I create and submit a certificate request?

To use the Certreq.exe utility to create and submit a certificate request, follow these steps: Create an .inf file that specifies the settings for the certificate request. To create an .inf file, you can use the sample code in the Creating a RequestPolicy.inf file section in How to Request a Certificate With a Custom Subject Alternative Name.

How do you add Subject Alternative Name to certificate request?

Adding Subject Alternative Name (SAN) to a digital certificateOpen the hosts. ... Add the loop back addresses and the host names. ... Verify if the hosts were added, by pinging each host in the Command prompt. ... Create a copy of the pscpki.More items...•

How do you add an additional SAN in CSR?

A safer option for adding SAN information to an already-signed CSR is to use an enrollment agent (EA) certificate to re-sign the original request. You can then specify the correct SAN information, and re-sign the original request with the EA certificate.

How do I add SAN to Openssl certificate?

TopicLog in to the command line.Change directories to the /var/tmp directory. ... Create a directory to store a modified openssl. ... Copy the default openssl. ... Edit the custom openssl.cnf file (/var/tmp/mySSL/myssl.cnf) and add the following information to the end of the file: ... Save the changes made to the custom openssl.More items...•

Is SAN mandatory in certificate?

Posted on: May 14, 2020 | Posted in: Certificates, security First of all, you must have the Subject Alternative Name (SAN) extension, this extension must contain DNS names of all the domain names the certificate was issued for. Browsers no longer trust the "CN" of the subject field.

Can you add a SAN to an existing certificate?

Anytime a SAN is added to an existing cert, a new CSR is required. The CSR must contain all the existing as well as new SANs. Consult your server manual for instructions on how to add SANs to the CSR. The common name for the CSR must be the same as the original certificate.

What is SAN in certificate request?

The Subject Alternative Name field lets you specify additional host names (sites, IP addresses, common names, etc.) to be protected by a single SSL Certificate, such as a Multi-Domain (SAN) or Extend Validation Multi-Domain Certificate.

How do I add a SAN to my self signed certificate?

4:4810:0717. How to create self signed SAN certificate in IIS 10 using PowerShellYouTubeStart of suggested clipEnd of suggested clipAs you switch happened DNS name and whatever DNS name or after dean you want to include in this selfMoreAs you switch happened DNS name and whatever DNS name or after dean you want to include in this self signed certificate you can specify here wh Sookie 19 - DC 0 1 .

How can I check my SAN certificate?

Browse to you Domain api.your-domain.com in your browser, click on the lock icon, and check the Cert's details.Checking your Subject Alternative Name (SAN)Internally Signed Certs/Self-Signed Certs.Publicly Signed Certs.

What is SAN in self signed certificate?

Create a self-signed certificate with Subject Alternative Name (SAN) when you want to use an SSL certificate for multiple domains. Create a file with the name domain.cnf and add the following configuration as per your requirement: [req]

How much does a SAN certificate cost?

SAN SSL or SAN Certificates starting at $18 per year.

How many SANs Can a certificate have?

100 SANsSAN certificate availability: DigiCert PKI Platform allows up to 100 SANs with a single certificate.

How do you create a CSR with multiple Sans?

How To Generate A CSR for Multi-Domain SSL Certificates?Create a copy of OpenSSL config file. ... Edit the config file and enable [ v3_req ] ... Enable SubjectAltName under [ v3_req ] section. ... Add Alt Name or SAN names in the config file. ... Generate the private key. ... Generate the CSR for multi-domain or SAN certificate. ... Test the CSR.

How do you add subject alternative name to CSR OpenSSL?

How to create a certificate using OpenSSL with Subject Alternative Name field (SAN)Download OpenSSL.Become a self-signing Certifying Authority (CA)Create a configuration file for the certificate with Subject Alternative Name.Create a Certificate Signing Request (CSR)Sign the request.More items...

How do I add a SAN to my self signed certificate?

4:4810:0717. How to create self signed SAN certificate in IIS 10 using PowerShellYouTubeStart of suggested clipEnd of suggested clipAs you switch happened DNS name and whatever DNS name or after dean you want to include in this selfMoreAs you switch happened DNS name and whatever DNS name or after dean you want to include in this self signed certificate you can specify here wh Sookie 19 - DC 0 1 .

How do I edit a CSR file?

Edit and view details about a CSR:Under Certificate Signing Requests on Server, click Edit & View in the Actions column. A new interface will appear that displays the description, the encoded CSR, and the decoded CSR.Enter any desired changes in the Description text box.Click Update Name.

How to submit a certificate request to a third party?

If you want to submit a certificate request to a third-party CA, first use the Certreq.exe tool to create the certificate request file. You can then submit the request to the third-party CA by using whatever method is appropriate for that vendor. The third-party CA must be able to process certificate requests in the CMC format.

What happens if a CA isn't configured to issue certificates automatically?

If the CA isn't configured to issue certificates automatically, a Certificate Pending webpage is displayed and requests that you wait for an administrator to issue the certificate that was requested.

What is LDAP certificate?

The LDAP certificate is submitted to a certification authority (CA) that is configured on a Windows Server 2003-based computer . The SAN lets you connect to a domain controller by using a Domain Name System (DNS) name other than the computer name.

How does the Request.inf file work?

When the request is created, the public and private key pair is automatically generated and then put in a request object in the enrollment requests store on the local computer.

Can a SAN be included in a certificate request?

When you submit a request to a stand-alone CA, certificate templates aren't used. Therefore, the SAN must always be included in the certificate request. SAN attributes can be added to a request that is created by using the Certreq.exe program. Or, SAN attributes can be included in requests that are submitted by using the web enrollment pages.

Does the CA need to issue certificates?

The CA must be configured to issue web server certificates. You may have to add the Web Server template to the Certificate Templates folder in the Certification Authority snap-in if the CA is not already configured to issue web server certificates.

How to add a SAN to a cert?

1. Generate a new CSR/private key pair. Anytime a SAN is added to an existing cert, a new CSR is required. The CSR must contain all the existing as well as new SANs . Consult your server manual for instructions on how to add SANs to the CSR. The common name for the CSR must be the same as the original certificate. 2.

What is SAN domain?

SAN (Subject Alternative Name) an additional domain that can be protected by a single certificate.

What does Cakemox say about editing certificates?

What cakemox said. If you could edit a certificate (that is, a signed CSR) after it had been signed, it would defeat the whole purpose of certificating authorities.

What to do if your chassis doesn't support SANs?

If your chassis doesn't support adding SANs, you'll need to get the key off the chassis and generate the CSR with openssl.

Can you edit a CSR after it's been generated?

The CSR is signed by the private key of the machine, so you can't edit it after it's been generated (or else it would fail to be signed anymore). It is possible that the CA edits the fields put in the public cert however; this is the only way to change the SAN field (which you have no control over if you're sending this to a public CA).

Can you generate an enrollment agent certificate for yourself?

When I tried this personally, I'm pretty sure I skipped the part about modifying the certificate template. Presuming you can generate an Enrollment Agent cert for yourself, the actual process looks something like this.

Can a CA sign a CSR?

So, while you could add those attributes to the text of the CSR, the the signature wouldn't match up with the contents, so no CA would sign it.

Does CA standard process allow SANs?

Our CA's standard process does not allow for adding SANs are signing time. They are willing to experiment, however I am trying to find a solution at our end as this will mean we won't have to rely on them having a non standard process for us - in my experience if they need to use a non standard process life will eventually get difficult. E.g. when a staff member who knows the non standard process is not present due to leave etc.

Can you have more than one SAN in CSR?

The web gui only allows for a single SAN in the CSR.

What will I cover in this post?

We will learn how to generate the Subject Alternate Name (or SAN) certificate in a simple way.

What is the SAN certificate?

The Subject Alternative Name (SAN) is an extension the X.509 specification. The specification allows to specify additional values for a SSL certificate. These values added to a SSL certificate via the subjectAltName field. A SSL certificate with SAN values usually called the SAN certificate.

How to create the SAN certificate?

The command below will create a pkcs12 Java keystore server.jks with a self-signed SSL certificate:

Export the certificate private and public keys

The Java keytool does not support export of a private key therefore we will need to use OpenSSL. The command below export the private key to the file serverkey.pem:

Take-aways

You should now have a better knowledge of what is SAN certificate and how to create SAN CSR

Do you need to restart CertSVC?

The CertSvc service may need to be restarted for changes to take effect.

Can you run certreq again?

Even if you've run the command, try running it again, make sure the CA service is stopped/restarted, and then request your certificate again. Your .inf file for Certreq.exe looks fine to me.

How to reissue a certificate for order?

On the Reissue Certificate for Order page, fill out the form: Add your CSR. Add SANs. Select payment method, signature hash, and server platform. Add a reason for the reissue. You are only charged if adding SANs occurs additional costs. When you are done, click Request Reissue.

Can you change domains on SSL/TLS?

Removing and changing domains on a multi-domain SSL/TLS certificate will revoke the original certificate and any of its duplicate certificates. See Reissue an SSL/TLS certificate.

Can you add SANS to Digicert?

DigiCert multi-domain certificates come with unlimited reissues. So, when needed, you can add SANS to your certificate.

Can Digicert reissue a domain?

If you added any new, unvalidated domains to the certificate reissue request (common name or SANs), you need to demonstrate control over those domains before DigiCert can reissue the certificate. See Demonstrate control over domains on a pending certificate order.

Where Can You See Subject Alternative Names in Action?

To see an example of Subject Alternative Names, in the address bar for this page, click the padlock in your browser to examine our SSL Certificate. In the certificate details, you will find a Subject Alternative Name extension that lists both www.digicert.com and digicert.com plus some additional SANs secured by our certificate.

What is subject alternative name?

The Subject Alternative Name field lets you specify additional host names (sites, IP addresses, common names, etc.) to be protected by a single SSL Certificate, such as a Multi-Domain (SAN) or Extend Validation Multi-Domain Certificate.

Can I host multiple SSL sites on one server?

Virtual Host Multiple SSL Sites on a Single IP Address: Hosting multiple SSL-enabled sites on a single server typically requires a unique IP address per site, but a Multi-Domain (SAN) Certificate with Subject Alternative Names can solve this problem. Microsoft IIS and Apache are both able to Virtual Host HTTPS sites using Multi-Domain (SAN) Certificates.

Can a wildcard certificate protect both a.example.com and a.example.?

However, a Wildcard Certificate cannot protect both www.example.com and www.example.net.

Summary

Create and Submit A Certificate Request

Use Certreq.Exe to Create and Submit A Certificate Request That Includes A San

• To use the Certreq.exe utility to create and submit a certificate request, follow these steps: 1. Create an .inf file that specifies the settings for the certificate request. To create an .inf file, you can use the sample code in the Creating a RequestPolicy.inf file section in How to Request a Certificate With a Custom Subject Alternative Name.SAN...

See more on docs.microsoft.com

Submit A Certificate Request to A Third-Party CA

References