Renew a Certificate with the Same Key (2024)

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Renew a Certificate with the Same Key

Renewing a certificate with the same key provides maximum compatibility with past uses of the accompanying key pair, but it does not enhance the security of the certificate and key pair.

Users or local Administrators is the minimum group membership required to complete this procedure. Review the details in "Additional considerations" in this topic.

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To renew a certificate with the same key

Open the Certificates snap-in for a user, computer, or service.
In the console tree, expand the Personal store, and click Certificates.
In the details pane, select the certificate that you are renewing.
On the Action menu, point to All Tasks, point to Advanced Operations, and then click Renew this certificate with the same key to start the Certificate Renewal Wizard.
See Also
Certificate Renewal - Windows Client Management Configure listener-specific SSL policies on Azure Application Gateway through portal SSL Offloading 101: Definition, Processes & Objectives | Okta GoDaddy - Renewing my SSL Certificate
If more than one certificate is listed in the Request Certificates window, select the certificate that you want to renew. Do one of the following:
- Use the default values to renew the certificate.
- Click Details, and then click Properties to provide your own certificate renewal settings. You need to know the certification authority (CA) issuing the certificate.
Click Enroll. After the Certificate Renewal Wizard has successfully finished, click Finish.

Additional considerations

User certificates can be managed by the user or by an administrator. Certificates issued to a computer or service can only be managed by an administrator or user who has been given the appropriate permissions.
To open the Certificates snap-in, see Add the Certificates Snap-in to an MMC.
Once renewed, the old certificate will be archived.
You can use this procedure to request certificates from an enterprise CA only. To request certificates from a stand-alone CA, you need to request certificates by using Web pages. The Web pages for a Windows-based CA are located at http://servername/certsrv, where servername is the name of the server that hosts the CA.

â‡’â‡’Certificate Manager "certmgr.msc" Manual

✍: Microsoft

2016-07-28, 39244🔥, 0💬

FAQs

Should I renew a certificate with the same key? ›

It is important to note that renewing a certificate with the same key should not impact any services that are currently using the certificate. However, it is always recommended to test the new certificate thoroughly before deploying it in a production environment.

Read On ›

Does renewing a certificate change the public key? ›

Public key certificates have a limited lifespan. If a public key certificate has expired or is about to expire, it should be renewed or deleted. Renewing a public key certificate does not affect the key pair.

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Should I change the private key when renewing a certificate? ›

When you renew a certificate using a new private key, you retire the private key and replace it with a new one. This process is commonly called certificate rekeying or key rollover. You choose this option to prevent a private key from being overused.

Can I use the same CSR to renew certificate? ›

You can reuse the same CSR and private key for certificate renewals. However, it's always a good practice to check with your specific CA or certificate provider to ensure their renewal process aligns with this approach.

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How do I rekey my certificate? ›

Rekey my Certificate

Generate a Certificate Signing Request (CSR) on your hosting server. ...
Log in to the control panel for the service provider which issued your SSL Certificate and select “Rekey your certificate.”
You can then paste your new CSR into the corresponding field then save the changes made.

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Does a renewed certificate have the same thumbprint? ›

No, it is incorrect. Certificate thumbprint is calculated over entire certificate, not just public key. When you renew the certificate, it is changed. At least, validity period will be different as the result, thumbprint on renewed certificate will be different as well.

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Can I reuse public key? ›

Your private key is never sent to the other site so it's perfectly safe to reuse the public key. It's also OK to reuse the same key your local computers. However, bear in mind that if someone steals the key, they then have access to all of them. This may or may not be a concern.

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Does renewing an SSL certificate invalidate the old one? ›

Beyond labeling that relationship, there is no operational correspondence between the "original" and "renewed" certificates. So no, renewing a cert doesn't revoke the old one, and you shouldn't revoke the old one--just let it expire. Only revoke a cert if you suspect its private key has been compromised.

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Can I generate a new private key for my certificate if I lose the old one? ›

If you still can't find the Private Key, you will need to get your SSL reissued. Because the in-browser CSR generation method creates the Private Key directly on your device, there's no way of restoring it if it's lost. This is why it's essential to save your Private Key and back it up if you choose this method.

What happens when you renew a certificate? ›

Renewing your certificate validates your website's identity. It makes sure the encryption you use is up to date, which keeps user's data secure during transit.

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Can two certificates have the same private key? ›

It is definitely possible at a technical level to use one private key for many different certificates.

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Do public keys expire? ›

All PKI certificates expire. Knowing how to check your PKI certificate expiration date ensures you can always access websites, documents, or other sources requiring a PKI certificate.

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Can you renew a certificate without a CSR? ›

Q: Do I need to create a new CSR when I renew my SSL/TLS certificate? A: Yes. Best practices are to generate a new certificate signing request (CSR) when renewing your SSL/TLS certificate. Generating a new CSR creates a new unique keypair (public/private) for the renewed certificate.

Get More Info Here ›

Can you use the same CSR twice? ›

To install the same certificate on multiple servers, first install the certificate files to the server where the CSR was originally generated. Then import the files (along with the private key) to the respective servers.

What is the difference between certificate reissue and renewal? ›

When your current certificate is about to expire, a Renewal is required. A Revoke & Replace (Reissue) is when you cancel a current, valid certificate and request a new one.

Do certificate keys expire? ›

They expire because the information you used to create the SSL certificate is no longer accurate and needs to be updated.

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What is the relationship between certificates and keys? ›

The owner of the key pair makes the public key available to anyone, but keeps the private key secret. A certificate verifies that an entity is the owner of a particular public key. Certificates that follow the X. 509 standard contain a data section and a signature section.

How to renew the root CA certificate with the same key? ›

Technically a root CA certificate cannot be renewed once expired. We can only generate a new CA certificate but when created using the existing key, it can be used to sign existing server certificates.

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