Java tutorial
/************************************************************************* * Copyright 2009-2012 Eucalyptus Systems, Inc. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 3 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see http://www.gnu.org/licenses/. * * Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta * CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need * additional information or have any questions. * * This file may incorporate work covered under the following copyright * and permission notice: * * Software License Agreement (BSD License) * * Copyright (c) 2008, Regents of the University of California * All rights reserved. * * Redistribution and use of this software in source and binary forms, * with or without modification, are permitted provided that the * following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE * THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL, * COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE, * AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING * IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, * SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, * WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION, * REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO * IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT * NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS. ************************************************************************/ package com.eucalyptus.blockstorage.util; import java.security.PrivateKey; import java.security.PublicKey; import javax.crypto.Cipher; import org.apache.log4j.Logger; import org.bouncycastle.util.encoders.Base64; import com.eucalyptus.blockstorage.Storage; import com.eucalyptus.bootstrap.Hosts; import com.eucalyptus.component.ComponentId; import com.eucalyptus.component.Components; import com.eucalyptus.component.Partition; import com.eucalyptus.component.Partitions; import com.eucalyptus.component.ServiceConfiguration; import com.eucalyptus.component.ServiceConfigurations; import com.eucalyptus.component.Topology; import com.eucalyptus.component.auth.SystemCredentials; import com.eucalyptus.component.id.Eucalyptus; import com.eucalyptus.context.Contexts; import com.eucalyptus.crypto.Ciphers; import com.eucalyptus.util.EucalyptusCloudException; public class BlockStorageUtil { private static Logger LOG = Logger.getLogger(BlockStorageUtil.class); /** * Returns the corresponding partition for the requested componentId class running on the local host * @param compClass * @return */ public static <C extends ComponentId> Partition getPartitionForLocalService(Class<C> compClass) throws EucalyptusCloudException { try { return Partitions.lookup(Components.lookup(compClass).getLocalServiceConfiguration()); } catch (Exception e) { LOG.error("Error finding partition for local component: " + compClass.getCanonicalName()); throw new EucalyptusCloudException("Failed lookup", e); } } public static String encryptNodeTargetPassword(String password, Partition partition) throws EucalyptusCloudException { try { if (partition == null) { throw new EucalyptusCloudException("Invalid partition specified. Got null"); } else { PublicKey ncPublicKey = partition.getNodeCertificate().getPublicKey(); Cipher cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.ENCRYPT_MODE, ncPublicKey); return new String(Base64.encode(cipher.doFinal(password.getBytes()))); } } catch (Exception e) { LOG.error("Unable to encrypt storage target password: " + e.getMessage(), e); throw new EucalyptusCloudException("Unable to encrypt storage target password: " + e.getMessage(), e); } } public static String encryptSCTargetPassword(String password) throws EucalyptusCloudException { PublicKey scPublicKey = SystemCredentials.lookup(Storage.class).getKeyPair().getPublic(); Cipher cipher; try { cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.ENCRYPT_MODE, scPublicKey); return new String(Base64.encode(cipher.doFinal(password.getBytes()))); } catch (Exception e) { LOG.error("Unable to encrypted storage target password"); throw new EucalyptusCloudException(e.getMessage(), e); } } public static String decryptSCTargetPassword(String encryptedPassword) throws EucalyptusCloudException { PrivateKey scPrivateKey = SystemCredentials.lookup(Storage.class).getPrivateKey(); try { Cipher cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.DECRYPT_MODE, scPrivateKey); return new String(cipher.doFinal(Base64.decode(encryptedPassword))); } catch (Exception ex) { LOG.error(ex); throw new EucalyptusCloudException("Unable to decrypt storage target password", ex); } } //Encrypt data using the node public key public static String encryptForNode(String data, Partition partition) throws EucalyptusCloudException { try { if (partition == null) { throw new EucalyptusCloudException("Invalid partition specified. Got null"); } else { PublicKey ncPublicKey = partition.getNodeCertificate().getPublicKey(); Cipher cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.ENCRYPT_MODE, ncPublicKey); return new String(Base64.encode(cipher.doFinal(data.getBytes()))); } } catch (Exception e) { LOG.error("Unable to encrypt data: " + e.getMessage(), e); throw new EucalyptusCloudException("Unable to encrypt data: " + e.getMessage(), e); } } //Decrypt data using the node private key. Primarly for VMwareBroker public static String decryptForNode(String data, Partition partition) throws EucalyptusCloudException { try { if (partition == null) { throw new EucalyptusCloudException("Invalid partition specified. Got null"); } else { PrivateKey ncPrivateKey = partition.getNodePrivateKey(); Cipher cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.DECRYPT_MODE, ncPrivateKey); return new String(cipher.doFinal(Base64.decode(data))); } } catch (Exception e) { LOG.error("Unable to dencrypt data with node private key: " + e.getMessage(), e); throw new EucalyptusCloudException("Unable to encrypt data with node private key: " + e.getMessage(), e); } } //Encrypt data using the cloud public key public static String encryptForCloud(String data) throws EucalyptusCloudException { try { PublicKey clcPublicKey = SystemCredentials.lookup(Eucalyptus.class).getCertificate().getPublicKey(); Cipher cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.ENCRYPT_MODE, clcPublicKey); return new String(Base64.encode(cipher.doFinal(data.getBytes()))); } catch (Exception e) { LOG.error("Unable to encrypt data: " + e.getMessage(), e); throw new EucalyptusCloudException("Unable to encrypt data: " + e.getMessage(), e); } } //Decrypt data encrypted with the Cloud public key public static String decryptWithCloud(String data) throws EucalyptusCloudException { PrivateKey clcPrivateKey = SystemCredentials.lookup(Eucalyptus.class).getPrivateKey(); try { Cipher cipher = Ciphers.RSA_PKCS1.get(); cipher.init(Cipher.DECRYPT_MODE, clcPrivateKey); return new String(cipher.doFinal(Base64.decode(data))); } catch (Exception ex) { LOG.error(ex); throw new EucalyptusCloudException("Unable to decrypt data with cloud private key", ex); } } }