securityUtility createSSLCertificate

The securityUtility createSSLCertificate command supports TLS certificate creation for Open Liberty.

This command creates a default keystore that includes a self-signed TLS certificate for use in a server or client configuration. For version 19.0.0.3 and later, the default keystore location is the resource/security/key.p12 file of the server or client directory. Through version 19.0.0.2, the default keystore location is the resource/security/key.jks file of the server or client directory.

Usage example

Create a TLS certificate for the myserver server with the mypassword password. Set the validity period to 365 days:

securityUtility createSSLCertificate --server=myserver --password=mypassword --validity=365

Syntax

Run the command from the path_to_liberty/wlp/bin directory.

securityUtility createSSLCertificate --password=pwd [options]

--password=pwd: The keystore password, which must be at least six characters long. If no value is specified, you’re prompted for a value when you run this command.

Options

Options for the securityUtility createSSLCertificate command
Option	Description
--client=name	Specifies the name of the Open Liberty client for which the keystore and certificate are created. This option can’t be used if the `--server` option is specified.
--extInfo	Specifies any X.509 certificate extension information that is used to create the default certificate. By default, the Subject Alternative Name (SAN) extension is added to the certificate with the hostname of the server. If the `--extInfo` option is used, the value is passed directly to the keytool command. Use the syntax of the `--ext` flag on the `keytool` command. You can use more than one `--extInfo` option with a single command, for example, `--extInfo="san=dns:laptop" --extInfo="ExtendedKeyUsage=serverAuth,clientAuth"`.
--keySize=size	Specifies the certificate key bit size. The default value is `2048`.
--keyType=keystore_type	Specifies the keystore type to generate. By default, a PKCS12 keystore is generated. To generate a JKS keystore, specify this option with the value of `JKS`. To explicitly specify the generation of a PKCS12 keystore, specify this option with the value of `PKCS12`. A PKCS12 keystore has advantages over a JKS keystore. The PKCS12 keystore is more extensible, supports stronger cryptographic algorithms, and is widely adopted. Certificate authorities frequently issue certificates in the PKCS12 format.
--passwordEncoding=password_encoding_type	Specifies how to encode the keystore password. Supported encoding types are `xor` and `aes`. If this option isn’t specified, a default encoding type of `xor` is used.
--passwordKey=password_encryption_key	Specifies the key to use when you encode a password with AES encryption. This string is hashed to produce an encryption key that is used to encrypt and decrypt the password. You can provide the key by defining the `wlp.password.encryption.key` variable as the key value. If this option isn’t specified, a default key is used.
--server=name	Specifies the name of the Open Liberty server for which the keystore and certificate are created. This option can’t be used if the `--client` option is specified.
--sigAlg=signature_algorithm	Specifies the signature algorithm that is used to sign the self-signed certificate. By default, the signature algorithm is SHA256withRSA. The signature algorithm that is supported depends on what is supported by the underlying Java Runtime Environment (JRE). Stronger signature algorithms might require the JRE to have an unrestricted policy file in place. The command accepts the following signature algorithms: SHA256withRSA, SHA1withRSA, SHA384withRSA, SHA512withRSA, SHA1withECDSA, SHA256withECDSA, SHA384withECDSA, and SHA512withECDSA. The signature algorithms that end with RSA create certificates with RSA keys. The signature algorithms that end with ECDSA create certificates with Elliptical Curve (EC) keys. If you use certificates that are created with EC keys, then include a customized ciphers list that includes EC ciphers in your Transport Layer Security (TLS) configuration.
--subject=DN	Specifies the distinguished name (DN) for the certificate subject and issuer. If this option isn’t specified, a default value of `CN=<hostname>,OU=<server or client name>,O=ibm,C=us` is used. The DN value is retrieved by using a Java method to get the machine’s local hostname. If the hostname can’t be resolved, the IP address is returned.
--validity=days	Specifies the number of days that the certificate is valid, which must be equal to or greater than 365. If this option isn’t specified, a default value of `365` is used.

Exit codes

The following exit codes are available for the securityUtility createSSLCertificate command:

Exit codes for the securityUtility createSSLCertificate command
Code	Explanation
0	0 indicates successful completion of the requested operation.
1	1 indicates a generic error.
2	2 indicates that the server is not found.
3	3 indicates that the client is not found.
4	4 indicates that the path can not be created.
5	5 indicates that the file already exists.