Keytool Generate Certificate And Private Key

  

To Create a CSR with keytool and Generate a SignedCertificate for the Certificate Signing Request

  1. Keytool Generate Certificate And Private Key Code
  2. Keytool Generate Certificate And Private Keyboard

  1. Perform the following operations from the command line.


  2. Generate the Certificate Signing Request.


  3. Generate a signed certificate for the associated Certificate SigningRequest.


  4. Use the keytool to import the CA certificate into the client keystore.


  5. Use the keytool to import the signed certificate for the associatedclient alias in the keystore.


    Caution –

    The following error will be generated if there is no certificatechain in the client certificate.


    This error is because the CA’s certificate was not imported intothe KeyStore first. You must import theCA's certificate (step 4), then import the client.cer file itself to forma certificate chain (step 5).

    Now that we have a private key and an associating certificate chainin the KeyStore clientkeystore, we canuse it as a KeyStore for client (adapter)authentication. The only warning is that the CA certificate must be importedinto the trusted certificate store of the web server to which you will beconnecting. Moreover, the web server must be configured for client authentication(httpd.conf for Apache, for example).

Use Java's Keytool to create a CSR and install your SSL/TLS certificate on your Tomcat (or other Java-based) server

Keytool -list -v -keystore keystore.jks The most important thing you want to see is that, under the private key alias, additional information is being displayed. You're looking for this: Certificate chain length: 2 How to import existing.key and.crt into.jks. Assume you have an existing.key and.crt from your Apache configuration. You do this: 1.

If at all possible I would consider creating a new keystore in OpenSSL and new keys rather than trying to pry out the private key from the Java keystore. By opening the Java keystore and extracting the private key one is moving beyond the designed security features. Apr 23, 2012  Generating a RSA Key with the Java Keytool Use the Java keytool to create public and private keys for RSA authentication if the client is in Java. RSA authentication uses public and private keys instead of passwords to authenticate with the ESP Server. To Use keytool to Create a Server Certificate. Run keytool to generate a new key pair in the default development keystore file, keystore.jks. This example uses the alias server-alias to generate a new public/private key pair and wrap the public key into a self-signed certificate inside keystore.jks. The key pair is generated by using an algorithm of type RSA, with a default. Keytool is a key and certificate management utility. It allows users to administer their own public/private key pairs and associated certificates for use in self-authentication (where the user authenticates himself/herself to other users/services) or data integrity and authentication services, using digital signatures.

  1. Keytool is a command-line utility that allows you to manage keystores, public and private keys, and SSL certificates for Java-based web servers, such as Tomcat or JBoss. Certificates and key pairs are stored in a secured keystore. This article explains how to create a new keystore and how to generate a Certificate Signing Request file using.
  2. The Java keytool utility creates both your private key and your certificate signing request, and saves them to two files: yourcommonname.jks, and yourcommonname.csr. You can then copy the contents of the CSR file and paste it into the CSR text box in our order form.

Use these instructions to generate your certificate signing request (CSR) and install your SSL/TLS certificate on your Tomcat server using Java’s Keytool.

Keytool Generate Certificate And Private Key Code

Restart Note: After you've installed your SSL/TLS certificate and configured the server to use it, you must restart the Tomcat service.

  1. To create your certificate signing request (CSR), see Tomcat Server: Create Your CSR with Java Keytool.

  2. To install your SSL certificate, see Tomcat Server: Install and Configure Your SSL/TLS Certificate.

To view these instructions in Spanish, see CSR para Tomcat and Tomcat Instalar Certificado SSL.

If you are looking for a simpler way to create CSRs, and install and manage your SSL/TLS certificates, we recommend using the DigiCert® Certificate Utility for Windows. You can use the DigiCert Utility to generate your CSR and prepare your SSL/TLS certificate file for installation on your Tomcat server. See Tomcat: Create CSR & Install SSL/TLS Certificate with the DigiCert Utility.

I. Tomcat Server: Create Your CSR with Java’s Keytool

Use the instructions in this section to create a new keystore (.jks) file and to generate your CSR.

Recommended Method: Use the DigiCert Java Keytool CSR Wizard

Save yourself some time: Use the DigiCert Java Keytool CSR Wizard to generate a Keytool command to create your Tomcat keystore and CSR.

  1. Simply fill out the form, click Generate, and then paste your customized Java Keytool command into your terminal.

  2. The Java keytool utility creates both your private key and your certificate signing request, and saves them to two files: your_common_name.jks, and your_common_name.csr.

  3. You can then copy the contents of the CSR file and paste it into the CSR text box in our order form.

  4. Skip to Step 2, part 3: Save and Back-up Your Keystore File.

Do you prefer a more manual approach to generating your Tomcat keystore and CSR? Follow the instructions below.

Step 1: Use Keytool to Create a New Keystore

Important: We recommend you generate a new keystore following the process outlined in this section. Installing a new certificate to an old keystore often ends in installation errors or the SSL/TLS certificate not working properly. Before you begin this process, backup and remove any old keystores.

  1. Run Command

    1. Navigate to the directory where you plan to manage your keystore and SSL/TLS certificate.

    2. Enter the command below.

      In the command above, your_site_name should be the name of the domain you want to secure with this SSL/TLS certificate. When ordering a Wildcard certificate, do not include the asterisk (*) in the filename (e.g., your_site_name). The asterisk is not a valid keytool character.

    3. Create a Password

      1. When prompted, create a password for your Keystore.

        Note: You will specify this password in your Tomcat configuration file and then use it to generate your CSR and to import your certificate.

      2. Store this password somewhere safe, such as a trusted and secured password manager.

    4. Enter your SSL/TLS certificate information.

      Important: When prompted for the first and last name, DO NOT type your first and last name. Instead, type the Fully Qualified Domain Name (FQDN) for the site you are securing with this certificate (e.g., www.yourdomain.com, mail.yourdomain.com). Are you are ordering a Wildcard Certificate? Then your FQDN must begin with an asterisk (*). (e.g.,*.yourdomain.com).

    5. Enter your Organization information.

    6. When prompted to verify your information, type y or yes to confirm.

    7. When asked for a 'key password for <server>', press enter to use the password you just created for the keystore file.

  2. Your keystore file, your_site_name.jks, is now created and in your current working directory.

Step 2: Generate a Certificate Signing Request (CSR) from your New Keystore

Keytool Generate Certificate And Private Keyboard

  1. Run Command

    1. In Keytool, type the following command:

      In the command above, your_site_name should be the name of the keystore file you created in Step 1: Use Keytool to Create a New Keystore or when using the DigiCert Java Keytool CSR Wizard.

    2. When prompted, enter the password you created earlier (when you created your new keystore).

    3. In your current directory, csr.txt (e.g., your_site_domain.txt) now contains your CSR.

  2. Save and Back-up Your Keystore File

    1. Take note of the path to your keystore file (your_site_domain.jks) as your SSL/TLS certificate will be installed to it later.

    2. We recommend that you create a back-up copy of your Keystore file (your_site_domain.jks) before continuing. Having a back-up of the Keystore file can help resolve issues that may occur during certificate SSL/TLS installation.

  3. Order Your SSL/TLS Certificate

    1. Open the .csr file you created with a text editor.

    2. Copy the text, including the -----BEGIN NEW CERTIFICATE REQUEST----- and -----END NEW CERTIFICATE REQUEST----- tags, and paste it in to the DigiCert order form.

    3. Make sure that when you Select Server Software, you select Tomcat.

      4. Tomcat SSL/TLS Certificates, Guides, & Tutorials

      Buy NowLearn More

  4. Install Certificate

    After you’ve received your SSL/TLS certificate from DigiCert, you can install it on your Tomcat server.