whitespace; +svn:eol-style=native
git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1754784 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/ooxml/java/org/apache/poi/xssf/usermodel/helpers/XSSFPaswordHelper.java b/src/ooxml/java/org/apache/poi/xssf/usermodel/helpers/XSSFPaswordHelper.java
index fd6e2db..39ba2c6 100644
--- a/src/ooxml/java/org/apache/poi/xssf/usermodel/helpers/XSSFPaswordHelper.java
+++ b/src/ooxml/java/org/apache/poi/xssf/usermodel/helpers/XSSFPaswordHelper.java
@@ -1,130 +1,130 @@
-/*
- * ====================================================================
- * 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.xssf.usermodel.helpers;
-
-import java.security.SecureRandom;
-import java.util.Arrays;
-import java.util.Locale;
-
-import javax.xml.bind.DatatypeConverter;
-import javax.xml.namespace.QName;
-
-import org.apache.poi.poifs.crypt.CryptoFunctions;
-import org.apache.poi.poifs.crypt.HashAlgorithm;
-import org.apache.xmlbeans.XmlCursor;
-import org.apache.xmlbeans.XmlObject;
-
-public class XSSFPaswordHelper {
- /**
- * Sets the XORed or hashed password
- *
- * @param xobj the xmlbeans object which contains the password attributes
- * @param password the password, if null, the password attributes will be removed
- * @param hashAlgo the hash algorithm, if null the password will be XORed
- * @param prefix the prefix of the password attributes, may be null
- */
- public static void setPassword(XmlObject xobj, String password, HashAlgorithm hashAlgo, String prefix) {
- XmlCursor cur = xobj.newCursor();
-
- if (password == null) {
- cur.removeAttribute(getAttrName(prefix, "password"));
- cur.removeAttribute(getAttrName(prefix, "algorithmName"));
- cur.removeAttribute(getAttrName(prefix, "hashValue"));
- cur.removeAttribute(getAttrName(prefix, "saltValue"));
- cur.removeAttribute(getAttrName(prefix, "spinCount"));
- return;
- }
-
- cur.toFirstContentToken();
- if (hashAlgo == null) {
- int hash = CryptoFunctions.createXorVerifier1(password);
- cur.insertAttributeWithValue(getAttrName(prefix, "password"),
- String.format(Locale.ROOT, "%04X", hash).toUpperCase(Locale.ROOT));
- } else {
- SecureRandom random = new SecureRandom();
- byte salt[] = random.generateSeed(16);
-
- // Iterations specifies the number of times the hashing function shall be iteratively run (using each
- // iteration's result as the input for the next iteration).
- int spinCount = 100000;
-
- // Implementation Notes List:
- // --> In this third stage, the reversed byte order legacy hash from the second stage shall
- // be converted to Unicode hex string representation
- byte hash[] = CryptoFunctions.hashPassword(password, hashAlgo, salt, spinCount, false);
-
- cur.insertAttributeWithValue(getAttrName(prefix, "algorithmName"), hashAlgo.jceId);
- cur.insertAttributeWithValue(getAttrName(prefix, "hashValue"), DatatypeConverter.printBase64Binary(hash));
- cur.insertAttributeWithValue(getAttrName(prefix, "saltValue"), DatatypeConverter.printBase64Binary(salt));
- cur.insertAttributeWithValue(getAttrName(prefix, "spinCount"), ""+spinCount);
- }
- cur.dispose();
- }
-
- /**
- * Validates the password, i.e.
- * calculates the hash of the given password and compares it against the stored hash
- *
- * @param xobj the xmlbeans object which contains the password attributes
- * @param password the password, if null the method will always return false,
- * even if there's no password set
- * @param prefix the prefix of the password attributes, may be null
- *
- * @return true, if the hashes match
- */
- public static boolean validatePassword(XmlObject xobj, String password, String prefix) {
- // TODO: is "velvetSweatshop" the default password?
- if (password == null) return false;
-
- XmlCursor cur = xobj.newCursor();
- String xorHashVal = cur.getAttributeText(getAttrName(prefix, "password"));
- String algoName = cur.getAttributeText(getAttrName(prefix, "algorithmName"));
- String hashVal = cur.getAttributeText(getAttrName(prefix, "hashValue"));
- String saltVal = cur.getAttributeText(getAttrName(prefix, "saltValue"));
- String spinCount = cur.getAttributeText(getAttrName(prefix, "spinCount"));
- cur.dispose();
-
- if (xorHashVal != null) {
- int hash1 = Integer.parseInt(xorHashVal, 16);
- int hash2 = CryptoFunctions.createXorVerifier1(password);
- return hash1 == hash2;
- } else {
- if (hashVal == null || algoName == null || saltVal == null || spinCount == null) {
- return false;
- }
-
- byte hash1[] = DatatypeConverter.parseBase64Binary(hashVal);
- HashAlgorithm hashAlgo = HashAlgorithm.fromString(algoName);
- byte salt[] = DatatypeConverter.parseBase64Binary(saltVal);
- int spinCnt = Integer.parseInt(spinCount);
- byte hash2[] = CryptoFunctions.hashPassword(password, hashAlgo, salt, spinCnt, false);
- return Arrays.equals(hash1, hash2);
- }
- }
-
-
- private static QName getAttrName(String prefix, String name) {
- if (prefix == null || "".equals(prefix)) {
- return new QName(name);
- } else {
- return new QName(prefix+Character.toUpperCase(name.charAt(0))+name.substring(1));
- }
- }
-}
+/*
+ * ====================================================================
+ * 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.xssf.usermodel.helpers;
+
+import java.security.SecureRandom;
+import java.util.Arrays;
+import java.util.Locale;
+
+import javax.xml.bind.DatatypeConverter;
+import javax.xml.namespace.QName;
+
+import org.apache.poi.poifs.crypt.CryptoFunctions;
+import org.apache.poi.poifs.crypt.HashAlgorithm;
+import org.apache.xmlbeans.XmlCursor;
+import org.apache.xmlbeans.XmlObject;
+
+public class XSSFPaswordHelper {
+ /**
+ * Sets the XORed or hashed password
+ *
+ * @param xobj the xmlbeans object which contains the password attributes
+ * @param password the password, if null, the password attributes will be removed
+ * @param hashAlgo the hash algorithm, if null the password will be XORed
+ * @param prefix the prefix of the password attributes, may be null
+ */
+ public static void setPassword(XmlObject xobj, String password, HashAlgorithm hashAlgo, String prefix) {
+ XmlCursor cur = xobj.newCursor();
+
+ if (password == null) {
+ cur.removeAttribute(getAttrName(prefix, "password"));
+ cur.removeAttribute(getAttrName(prefix, "algorithmName"));
+ cur.removeAttribute(getAttrName(prefix, "hashValue"));
+ cur.removeAttribute(getAttrName(prefix, "saltValue"));
+ cur.removeAttribute(getAttrName(prefix, "spinCount"));
+ return;
+ }
+
+ cur.toFirstContentToken();
+ if (hashAlgo == null) {
+ int hash = CryptoFunctions.createXorVerifier1(password);
+ cur.insertAttributeWithValue(getAttrName(prefix, "password"),
+ String.format(Locale.ROOT, "%04X", hash).toUpperCase(Locale.ROOT));
+ } else {
+ SecureRandom random = new SecureRandom();
+ byte salt[] = random.generateSeed(16);
+
+ // Iterations specifies the number of times the hashing function shall be iteratively run (using each
+ // iteration's result as the input for the next iteration).
+ int spinCount = 100000;
+
+ // Implementation Notes List:
+ // --> In this third stage, the reversed byte order legacy hash from the second stage shall
+ // be converted to Unicode hex string representation
+ byte hash[] = CryptoFunctions.hashPassword(password, hashAlgo, salt, spinCount, false);
+
+ cur.insertAttributeWithValue(getAttrName(prefix, "algorithmName"), hashAlgo.jceId);
+ cur.insertAttributeWithValue(getAttrName(prefix, "hashValue"), DatatypeConverter.printBase64Binary(hash));
+ cur.insertAttributeWithValue(getAttrName(prefix, "saltValue"), DatatypeConverter.printBase64Binary(salt));
+ cur.insertAttributeWithValue(getAttrName(prefix, "spinCount"), ""+spinCount);
+ }
+ cur.dispose();
+ }
+
+ /**
+ * Validates the password, i.e.
+ * calculates the hash of the given password and compares it against the stored hash
+ *
+ * @param xobj the xmlbeans object which contains the password attributes
+ * @param password the password, if null the method will always return false,
+ * even if there's no password set
+ * @param prefix the prefix of the password attributes, may be null
+ *
+ * @return true, if the hashes match
+ */
+ public static boolean validatePassword(XmlObject xobj, String password, String prefix) {
+ // TODO: is "velvetSweatshop" the default password?
+ if (password == null) return false;
+
+ XmlCursor cur = xobj.newCursor();
+ String xorHashVal = cur.getAttributeText(getAttrName(prefix, "password"));
+ String algoName = cur.getAttributeText(getAttrName(prefix, "algorithmName"));
+ String hashVal = cur.getAttributeText(getAttrName(prefix, "hashValue"));
+ String saltVal = cur.getAttributeText(getAttrName(prefix, "saltValue"));
+ String spinCount = cur.getAttributeText(getAttrName(prefix, "spinCount"));
+ cur.dispose();
+
+ if (xorHashVal != null) {
+ int hash1 = Integer.parseInt(xorHashVal, 16);
+ int hash2 = CryptoFunctions.createXorVerifier1(password);
+ return hash1 == hash2;
+ } else {
+ if (hashVal == null || algoName == null || saltVal == null || spinCount == null) {
+ return false;
+ }
+
+ byte hash1[] = DatatypeConverter.parseBase64Binary(hashVal);
+ HashAlgorithm hashAlgo = HashAlgorithm.fromString(algoName);
+ byte salt[] = DatatypeConverter.parseBase64Binary(saltVal);
+ int spinCnt = Integer.parseInt(spinCount);
+ byte hash2[] = CryptoFunctions.hashPassword(password, hashAlgo, salt, spinCnt, false);
+ return Arrays.equals(hash1, hash2);
+ }
+ }
+
+
+ private static QName getAttrName(String prefix, String name) {
+ if (prefix == null || "".equals(prefix)) {
+ return new QName(name);
+ } else {
+ return new QName(prefix+Character.toUpperCase(name.charAt(0))+name.substring(1));
+ }
+ }
+}
