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- /* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You under the Apache License, Version 2.0
- (the "License"); you may not use this file except in compliance with
- the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
- ==================================================================== */
- package org.apache.poi.poifs.crypt;
-
- import java.io.IOException;
- import java.io.OutputStream;
- import java.security.GeneralSecurityException;
-
- import javax.crypto.SecretKey;
-
- import org.apache.poi.poifs.filesystem.DirectoryNode;
- import org.apache.poi.poifs.filesystem.NPOIFSFileSystem;
- import org.apache.poi.poifs.filesystem.OPOIFSFileSystem;
- import org.apache.poi.poifs.filesystem.POIFSFileSystem;
-
- public abstract class Encryptor {
- protected static final String DEFAULT_POIFS_ENTRY = Decryptor.DEFAULT_POIFS_ENTRY;
- private SecretKey secretKey;
-
- /**
- * Return a output stream for encrypted data.
- *
- * @param dir the node to write to
- * @return encrypted stream
- */
- public abstract OutputStream getDataStream(DirectoryNode dir)
- throws IOException, GeneralSecurityException;
-
- // for tests
- public abstract void confirmPassword(String password, byte keySpec[], byte keySalt[], byte verifier[], byte verifierSalt[], byte integritySalt[]);
-
- public abstract void confirmPassword(String password);
-
- public static Encryptor getInstance(EncryptionInfo info) {
- return info.getEncryptor();
- }
-
- public OutputStream getDataStream(NPOIFSFileSystem fs) throws IOException, GeneralSecurityException {
- return getDataStream(fs.getRoot());
- }
- public OutputStream getDataStream(OPOIFSFileSystem fs) throws IOException, GeneralSecurityException {
- return getDataStream(fs.getRoot());
- }
- public OutputStream getDataStream(POIFSFileSystem fs) throws IOException, GeneralSecurityException {
- return getDataStream(fs.getRoot());
- }
-
- public SecretKey getSecretKey() {
- return secretKey;
- }
-
- protected void setSecretKey(SecretKey secretKey) {
- this.secretKey = secretKey;
- }
- }
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