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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 org.apache.poi.poifs.filesystem.DocumentInputStream;
-
- /**
- * @author Maxim Valyanskiy
- */
- public class EncryptionVerifier {
- private final byte[] salt = new byte[16];
- private final byte[] verifier = new byte[16];
- private final byte[] verifierHash;
- private final int verifierHashSize;
-
- public EncryptionVerifier(DocumentInputStream is, int encryptedLength) {
- int saltSize = is.readInt();
-
- if (saltSize!=16) {
- throw new RuntimeException("Salt size != 16 !?");
- }
-
- is.readFully(salt);
- is.readFully(verifier);
-
- verifierHashSize = is.readInt();
-
- verifierHash = new byte[encryptedLength];
- is.readFully(verifierHash);
- }
-
- public byte[] getSalt() {
- return salt;
- }
-
- public byte[] getVerifier() {
- return verifier;
- }
-
- public byte[] getVerifierHash() {
- return verifierHash;
- }
- }
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