Read more about using java keytool to import a keystore into another keystore. To change the password of a PKCS 12 keystore make sure to also change the password of the key, if not, the keystore will be corrupt , run the following commands:. When generating a keystore, the default alias is 1 if not explicitly set. This default value may vary based on the software used to generate the keystore. We have a focused post on changing an alias here for even more details on this command. To change the alias, run the following command:.
It is useful and recommended to verify any changes made to a keystore. The simplest way is to just list the contents. To list the contents of the PKCS 12 keystore run the following command:. Some software requires a stand alone private key instead of a keystore for authentication, signing, etc. To extract the private key from a keystore, run the following command:. Note that secret keys are not supported with openssl in a pkcs12 keystore. If you attempt to extract a secret key entry you will receive the following exception: Warning unsupported bag type: secretBag.
View the video on extracting a private key from a keystore with OpenSSL for a step by step walk through. Similar to requiring a stand alone key, some software requires stand alone certificate files to be used instead of a keystore. To extract a certificate or certificate chain from a PKCS12 keystore using openssl, run the following command:. View All How Tos. Handle sslcorp. Facebook Twitter Youtube Github.
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Privacy Overview. Keeping these cookies enabled helps us to improve our website. Next, generate a public key using the private key that you just created using the rsa sub-command. The syntax below will create a public key called rsa. On occasion you may need to generate a self-signed certificate. Self-signed certificates are fine to use for lab use but not a secure practice to use in a production environment.
To do so, enter the command below to create an X SSL certificate. The certificate will be saved to the working directory. Sometimes a wrong key may have been used to create a certificate, for example.
You may have the wrong identifying information in the certificate. Details such as country name, organizational name, and the email address you entered when creating the CSR at the beginning of this guide, should match precisely.
You can also check a certificate using the x sub-command with a couple of parameters:. There are occasions where an application does not use a particular certificate format. You can run into this issue with an application called HAproxy , for example that requires a PEM certificate when you may have a DER-formatted certificate. Use the code in the following code snippet to do so. This command below uses the x sub-command with the parameter of -inform which should match the format of the -in file followed by the -out format.
This is a file type that contain private keys and certificates. To convert to PEM format, use the pkcs12 sub-command. Using the -certfile option value MyCACert. OpenSSL comes with commands that make it a breeze to troubleshoot problems. OpenSSL also allows you to check certificates for file integrity and test for possible data corruption. You have also learned how to convert between different certificate formats and do some basic troubleshooting using built-in sub-commands.
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