net.nicholaswilliams.java.licensing.encryption

Interface PublicKeyDataProvider

All Known Implementing Classes:

FilePublicKeyDataProvider

public interface PublicKeyDataProvider

Specifies an interface for retrieving the public key file data. This interface only needs to be implemented in the application using the licenses. It need not be implemented in the application generating the licenses.

Since:

1.0.0

Version:

1.0.0

Author:

Nick Williams

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getEncryptedPublicKeyData() This method returns the data from the file containing the encrypted public key from the public/private key pair.

Method Detail

getEncryptedPublicKeyData

byte[] getEncryptedPublicKeyData()
                                 throws KeyNotFoundException

This method returns the data from the file containing the encrypted public key from the public/private key pair. The contract for this method can be fulfilled by storing the data in a byte array literal in the source code itself.

It is imperative that you obfuscate the bytecode for the implementation of this class. It is also imperative that the byte array exist only for the life of this method (i.e., DO NOT store it as an instance or class field).

Returns:

the encrypted file contents from the public key file.

Throws:

KeyNotFoundException - if the key data could not be retrieved; an acceptable message or chained cause must be provided.