com.license4j

Class LicenseManager

java.lang.Object

com.license4j.LicenseManager

public class LicenseManager
extends java.lang.Object

LicenseManager is used to create key pair and a license. DSA, RSA and EC algorithms are supported and all supported key pair and signature algorithms and key sizes are statically defined in LicenseManager class and they should be used.

Constructor Summary

Constructors

Constructor and Description
LicenseManager()

Method Summary

Methods

Modifier and Type	Method and Description
static LicenseKeyPair	createKeyPair(java.lang.String name, java.lang.String description, java.lang.String keypairAlgorithm, java.lang.String signatureAlgorithm, int keysize) Creates and returns new LicenseKeyPair object which includes public and private keys.
static java.lang.String	generateLicenseKey(LicenseKeyPair keypair, LicenseKey licenseKeyObject) Generates cryptographically secure license key from given license key object and key pair.
static java.lang.String	generateLicenseKey(java.lang.String publickey, LicenseKey licenseKeyObject) Generates basic license key from given license key object and public key.
static java.lang.String	generateLicenseText(LicenseKeyPair keypair, LicenseText licenseTextObject) Generates license text from given license text object and key pair.
static java.lang.String	getLibraryVersion() License4J library version info.
static LicenseKeyPair	loadKeyPair(java.lang.String keypairString) Loads key pair.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LicenseManager

public LicenseManager()

Method Detail

createKeyPair

public static LicenseKeyPair createKeyPair(java.lang.String name,
                           java.lang.String description,
                           java.lang.String keypairAlgorithm,
                           java.lang.String signatureAlgorithm,
                           int keysize)
                                    throws LicenseSecurityException

Creates and returns new LicenseKeyPair object which includes public and private keys.

Parameters:

name - key pair descriptive name

description - description

keypairAlgorithm - one of the key pair algorithms below

• LicenseKeyPair.KEYPAIR_ALGORITHM_DSA
• LicenseKeyPair.KEYPAIR_ALGORITHM_RSA

signatureAlgorithm - one of the signature algorithms below

• LicenseKeyPair.SIGNATURE_ALGORITHM_SHA1withDSA
• LicenseKeyPair.SIGNATURE_ALGORITHM_MD5withRSA
• LicenseKeyPair.SIGNATURE_ALGORITHM_SHA256withRSA
• LicenseKeyPair.SIGNATURE_ALGORITHM_SHA512withRSA

keysize - one of the defined key sizes below

• LicenseKeyPair.KEYSIZE_512
• LicenseKeyPair.KEYSIZE_768
• LicenseKeyPair.KEYSIZE_1024
• LicenseKeyPair.KEYSIZE_2048

Returns:

LicenseKeyPair object

Throws:

LicenseSecurityException

loadKeyPair

public static LicenseKeyPair loadKeyPair(java.lang.String keypairString)
                                  throws LicenseSecurityException

Loads key pair.

Parameters:

keypairString - key pair as string

Returns:

LicenseKeyPair object

Throws:

LicenseSecurityException

generateLicenseText

public static java.lang.String generateLicenseText(LicenseKeyPair keypair,
                                   LicenseText licenseTextObject)
                                            throws LicenseSecurityException

Generates license text from given license text object and key pair.

Parameters:

keypair -

licenseTextObject -

Returns:

license text string

Throws:

LicenseSecurityException

generateLicenseKey

public static java.lang.String generateLicenseKey(LicenseKeyPair keypair,
                                  LicenseKey licenseKeyObject)
                                           throws LicenseSecurityException

Generates cryptographically secure license key from given license key object and key pair.

Parameters:

keypair -

licenseKeyObject -

Returns:

license key string

Throws:

LicenseSecurityException

generateLicenseKey

public static java.lang.String generateLicenseKey(java.lang.String publickey,
                                  LicenseKey licenseKeyObject)

Generates basic license key from given license key object and public key.

Parameters:

publickey -

licenseKeyObject -

Returns:

license key string

getLibraryVersion

public static java.lang.String getLibraryVersion()

License4J library version info.

Returns:

License4J library version string