Java Keystore Generate Private Key

To Use keytool to Create a ServerCertificate

Run keytool to generate a new key pair in the defaultdevelopment keystore file, keystore.jks. This exampleuses the alias server-alias to generate a new public/privatekey pair and wrap the public key into a self-signed certificate inside keystore.jks. The key pair is generated by using an algorithm oftype RSA, with a default password of changeit. For moreinformation and other examples of creating and managing keystore files, readthe keytool online help at http://download.oracle.com/javase/6/docs/technotes/tools/solaris/keytool.html.

Java Keystore Generate Private Key For Pfx

To create a private key and its corresponding public-key certificate using Java tools, you would do something like: $ keytool -genkeypair -keyalg rsa -keysize 2048 -alias jdavies -keystore jdavieskeys.jks -dname 'CN=Joshua Davies' $ keytool -certreq -alias jdavies -keystore jdavieskeys.jks jdaviescert.csr (get the CSR signed by a CA) $ keytool -import -alias jdavies -file jdaviescert.pem -keystore jdavieskeys.jks. The alias here must match the alias of the private key in the first command. Keytool -import -trustcacerts -alias mydomain -file mydomain.crt -keystore KeyStore.jks The keystore is now complete and can be used for signing code or deploying on a Java based web server depending on the product you ordered. Since this lesson assumes that you don't yet have such keys, you are going to create a keystore named examplestore and create an entry with a newly generated public/private key pair (with the public key in a certificate). Type the following command in your command window to create a keystore named examplestore and to generate keys. Therefore you will more often be storing public and private keys in a KeyStore than secret keys. Creating a KeyStore. You can create a Java KeyStore instance by calling its getInstance method. Here is an example of creating a KeyStore instance: KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType); This example creates a KeyStore instance of Java's.

Java Keytool Generate Private Key

Java Keytool stores the keys and certificates in what is called a keystore. By default the Java keystore is implemented as a file. It protects private keys with a password. A Keytool keystore contains the private key and any certificates necessary to complete a chain of trust and establish the trustworthiness of the primary certificate. When you are working with JAVA applications and JAVA based server, you may need to configure a Java key store (JKS) file. Self signed keystore can be easily created with keytool command. But if you have a private key and a CA signed certificate of it, You can not create a key store with just one keytool.

Keystore

Java Keytool Generate Public And Private Key

Note –

RSA is public-key encryption technology developed by RSA DataSecurity, Inc.

Java Keystore Generate Private Key

From the directory in which you want to create the key pair, run keytool as shown in the following steps.

  1. Generate the server certificate.

    Type the keytool command all on one line:


    When you press Enter, keytool prompts you to enterthe server name, organizational unit, organization, locality, state, and countrycode.

    You must type the server name in response to keytool’sfirst prompt, in which it asks for first and last names. For testing purposes,this can be localhost.

    When you run the example applications, the host (server name) specifiedin the keystore must match the host identified in the javaee.server.name property specified in the file tut-install/examples/bp-project/build.properties.

  2. Export the generated server certificate in keystore.jks intothe file server.cer.

    Type the keytool commandall on one line:


  3. If you want to have the certificate signed by a CA, read the exampleat http://download.oracle.com/javase/6/docs/technotes/tools/solaris/keytool.html.

  4. To add the server certificate to the truststore file, cacerts.jks, run keytool from the directory where you createdthe keystore and server certificate.

    Use the following parameters:


    Information on the certificate, such as that shown next, will appear:


  5. Type yes, then press the Enter or Return key.

    The following information appears: