To Use keytool to Create a ServerCertificate
- Generate Public Key And Private Key Using Keytool Windows 7
- Private Key Definition
- Generate Public Key And Private Key Using Keytool
Apr 23, 2012 To create a private/public key with the alias specified by the user, enter: keytool -genkey -keyalg RSA -alias -keystore keystore.jks -storepass -keypass is the user-chosen alias for the private and public keys that will function as a user name for logging in using RSA.
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.
Note – RSA is public-key encryption technology developed by RSA DataSecurity, Inc.
From the directory in which you want to create the key pair, run keytool as shown in the following steps.
- 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.
- Export the generated server certificate in keystore.jks intothe file server.cer. Adobe acrobat xi pro serial number generator free download.Type the keytool commandall on one line:
- 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.
- 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:
- Type yes, then press the Enter or Return key.The following information appears:
If a code signer does not yet have a suitable private key for signing the code, the key must first be generated, along with a corresponding public key that can be used by the code receiver's runtime system to verify the signature.
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). Openssl generate csr config file.Type the following command in your command window to create a keystore named
examplestore
and to generate keys:You will be prompted to enter passwords for the key and keystore.
Subparts of the keytool Command
Let's look at what each of the
keytool
subparts mean.Generate Public Key And Private Key Using Keytool Windows 7
- The command for generating keys is -genkey.
- The -alias signFiles subpart indicates the alias to be used in the future to refer to the keystore entry containing the keys that will be generated.
- The -keystore examplestore subpart indicates the name (and optionally path) of the keystore you are creating or already using.
- The storepass value that you are promted for specifies the keystore password.
- The keypass value that you are prompted for specifies a password for the private key about to be generated. You will always need this password in order to access the keystore entry containing that key. The entry doesn't have to have its own password. When you are prompted for the key password, you are given the option of letting it be the same as the keystore password.
Note: For security reasons you should not set your key or keystore passwords on the command line, because they can be intercepted more easily that way.
Distinguished-Name Information
Private Key Definition
If you use the preceding
keystore
command, you will be prompted for your distinguished-name information. Following are the prompts; the bold indicates what you should type.Command Results
The
keytool
command creates the keystore named examplestore
(if it doesn't already exist) in the same directory in which the command is executed. The command generates a public/private key pair for the entity whose distinguished name has a common name of Susan Jones and the organizational unit of Purchasing.The command creates a self-signed certificate that includes the public key and the distinguished-name information. (The distinguished name you supply will be used as the 'subject' field in the certificate.) This certificate will be valid for 90 days, the default validity period if you don't specify a -validity option. The certificate is associated with the private key in a keystore entry referred to by the alias
signFiles
.Self-signed certificates are useful for developing and testing an application. However, users are warned that the application is signed with an untrusted certificate and asked if they want to run the application. To provide users with more confidence to run your application, use a certificate issued by a recognized certificate authority.
![Private key definition Private key definition](/uploads/1/2/5/8/125872183/145075675.png)
Generate Public Key And Private Key Using Keytool
Note: The command could be shorter if option defaults are accepted or you wish to be prompted for various values. Whenever you execute a
keytool
command, defaults are used for unspecified options that have default values, and you are prompted for any required values. For the genkey
command, options with default values include alias (whose default is mykey
), validity (90 days), and keystore (the file named .keystore
in your home directory). Required values include dname, storepass, and keypass.