Package org.dcache.xrootd.plugins.authn.gsi

Class DHBufferHandler

java.lang.Object

org.dcache.xrootd.plugins.authn.gsi.DHBufferHandler

All Implemented Interfaces:

BufferDecrypter, BufferEncrypter

public class DHBufferHandler
extends java.lang.Object
implements BufferEncrypter, BufferDecrypter

Uses established shared secret from a Diffie Hellman session to encrypt or decrypt the buffer.

Constructor Summary

Constructors

Constructor	Description
DHBufferHandler(DHSession session, java.lang.String cipherSpec, java.lang.String keySpec, int blocksize)

Method Summary

Modifier and Type	Method	Description
byte[]	decrypt(byte[] encrypted)
byte[]	encrypt(byte[] unencrypted)

Methods inherited from class java.lang.Object

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

Constructor Detail

DHBufferHandler

public DHBufferHandler(DHSession session,
                       java.lang.String cipherSpec,
                       java.lang.String keySpec,
                       int blocksize)

Method Detail

decrypt

public byte[] decrypt(byte[] encrypted)
               throws java.security.InvalidKeyException,
                      java.lang.IllegalStateException,
                      java.security.NoSuchAlgorithmException,
                      javax.crypto.NoSuchPaddingException,
                      javax.crypto.IllegalBlockSizeException,
                      javax.crypto.BadPaddingException,
                      java.security.InvalidAlgorithmParameterException,
                      java.security.NoSuchProviderException

Specified by:

decrypt in interface BufferDecrypter

Throws:

java.security.InvalidKeyException

java.lang.IllegalStateException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

java.security.InvalidAlgorithmParameterException

java.security.NoSuchProviderException

encrypt

public byte[] encrypt(byte[] unencrypted)
               throws java.security.InvalidKeyException,
                      java.lang.IllegalStateException,
                      java.security.NoSuchAlgorithmException,
                      javax.crypto.NoSuchPaddingException,
                      javax.crypto.IllegalBlockSizeException,
                      javax.crypto.BadPaddingException,
                      java.security.InvalidAlgorithmParameterException,
                      java.security.NoSuchProviderException

Specified by:

encrypt in interface BufferEncrypter

Throws:

java.security.InvalidKeyException

java.lang.IllegalStateException

java.security.NoSuchAlgorithmException

javax.crypto.NoSuchPaddingException

javax.crypto.IllegalBlockSizeException

javax.crypto.BadPaddingException

java.security.InvalidAlgorithmParameterException

java.security.NoSuchProviderException