How do I extend the validity of a self-signed certificate?

Export the private key (with keytool & openssl or through the keystore-explorer UI, which is much simpler) Make a certificate signing request (with keytool or through the keystore-explorer UI) Sign the request with the private key (i.e. self-signed) Import the certificate in the store to replace the old (expired) one.

What is the Keytool command?

The Java Keytool is a command line tool which can generate public key / private key pairs and store them in a Java KeyStore. The Keytool executable is distributed with the Java SDK (or JRE), so if you have an SDK installed you will also have the Keytool executable. The Keytool executable is called keytool .

How do I know when my self-signed certificate expires?

Here’s how to check your SSL certificate’s expiration date on Google Chrome.

1. Click the padlock. Start by clicking the padlock icon in the address bar for whatever website you’re on.
2. Click on Valid. In the pop-up box, click on “Valid” under the “Certificate” prompt.
3. Check the Expiration Data.

Can a self-signed certificate expire?

Indeed, self-signed certificates have several key limitations. Most important among these are: Self-signed certificates cannot be revoked. Self-signed certificates never expire.

How do you change the validity period of a certificate?

Change expiration date of certificates issued by CA

1. Click Start, and then click Run.
2. In the Open box, type regedit, and then click OK.
3. Locate, and then click the following registry key:
4. In the right pane, double-click ValidityPeriod.
5. In the Value data box, type one of the following, and then click OK:

How long is a self-signed certificate good for?

for 90 days
Purpose. By default, All the self-signed certificate only valid for 90 days, then you will need to renew them every 90 days, which is very troublesome.

How do I know my keystore format?

In order to view/convert a KeyStore type, click on View/Convert KeyStore Type of the opened KeyStore window. The available KeyStore types are: jks – Java KeyStore (Oracle’s KeyStore format); pkcs12 – Public-Key Cryptography Standards #12 KeyStore (RSA’s Personal Information Exchange Syntax Standard);

How do I read a keystore file?

1 Answer

1. I think you can run the following command to list the content of your keystore file.
2. keytool -v -list -keystore .keystore.
3. If you are looking for a specific alias, you can also specify it in the command:
4. keytool -list -keystore .keystore -alias foo.
5. If the alias is not found, it will display an exception:

Do RSA private keys expire?

The RSA private/public key don’t have dates in them so they don’t expire. RSA Private/Public keys are used for asymmetric cryptography operations.

How do I check my certificate status?

To view certificates for the current user, open the command console, and then type certmgr. msc. The Certificate Manager tool for the current user appears. To view your certificates, under Certificates – Current User in the left pane, expand the directory for the type of certificate you want to view.

How do I remove expired self-signed certificate?

Delete an Expiring Certificate

1. Step One: Find the Expired Self-Signed Certificate. Click on ‘Setup’. Locate the ‘Security’ folder and select the ‘Certificate and Key Management’ option.
2. Step Two: Find the Identity Provider. Click on ‘Setup’.
3. Step Three: Delete the Certificate. Go back to the certificate.

How to create a self signed certificate using Java keytool?

Now that you know when to use a Keytool self signed certificate, let’s create one using a simple Java Keytool command: Open the command console on whatever operating system you are using and navigate to the directory where keytool.exe is located (usually where the JRE is located, e.g. c:Program FilesJavajre6bin on Windows machines).

How to change validation date of self signed certificate?

Easiest way to change the ‘valid’ dates, is to re-issue and reinstall the certificate with the dates you need. Was this post helpful? Thanks for your feedback! @bytesnake: I use certreq.exe from the Windows tools to create the request.

When does a self signed certificate expire in Windows?

Such a self-signed certificate will expire in 1 year from the date of its creation. You can set a different certificate validity period using the –NotAfter option. For example, you can issue an SSL/TLS certificate with a three-year validity period with the following commands:

What to do with a self signed certificate?

By default, a self-signed certificate is generated with the following settings: Cryptographic algorithm: RSA; Key length: 2048 bit; Acceptable key usage: Client Authentication and Server Authentication; The certificate can be used for: Digital Signature, Key Encipherment;