Start combining functionality.

src/com/android/keepass/keepasslib/BufferedBlockCipherOutputStream.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright 2009 Brian Pellin.
+ *     
+ * This file is part of KeePassDroid.
+ *
+ *  KeePassDroid 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, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDroid 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 KeePassDroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.android.keepass.keepasslib;
+
+import java.io.FilterOutputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+
+import org.bouncycastle.crypto.DataLengthException;
+import org.bouncycastle.crypto.InvalidCipherTextException;
+import org.bouncycastle.crypto.paddings.PaddedBufferedBlockCipher;
+
+public class BufferedBlockCipherOutputStream extends FilterOutputStream {
+
+	OutputStream mOS;
+	PaddedBufferedBlockCipher mCipher;
+	
+	public BufferedBlockCipherOutputStream(OutputStream out) {
+		super(out);
+		mOS = out;
+	}
+	
+	public BufferedBlockCipherOutputStream(OutputStream out, PaddedBufferedBlockCipher cipher) {
+		super(out);
+		mOS = out;
+		mCipher = cipher;
+	}
+
+	@Override
+	public void close() throws IOException {
+		byte[] block = new byte[2*mCipher.getBlockSize()];
+		int bytes;
+		try {
+			bytes = mCipher.doFinal(block, 0);
+		} catch (DataLengthException e) {
+			throw new IOException(e.getMessage());
+		} catch (IllegalStateException e) {
+			throw new IOException("IllegalStateException.");
+		} catch (InvalidCipherTextException e) {
+			throw new IOException("InvalidCipherText.");
+		}
+		if ( bytes > 0 ) {
+			mOS.write(block, 0, bytes);
+		}
+	}
+
+	@Override
+	public void write(byte[] buffer, int offset, int count) throws IOException {
+		int outputLen = mCipher.getUpdateOutputSize(count);
+		
+		if ( outputLen > 0 ) {
+			byte[] block = new byte[outputLen];
+			int bytes = mCipher.processBytes(buffer, offset, count, block, 0);
+			if ( bytes > 0 ) {
+				mOS.write(block, 0, bytes);
+			}
+		}
+	}
+
+	@Override
+	public void write(byte[] buffer) throws IOException {
+		int length = buffer.length;
+		int outputLen = mCipher.getUpdateOutputSize(length);
+		
+		if ( outputLen > 0 ) {
+			byte[] block = new byte[outputLen];
+			int bytes = mCipher.processBytes(buffer, 0, length, block, 0);
+			
+			if ( bytes > 0 ) {
+				mOS.write(block, 0, bytes);
+			}
+		}
+	}
+
+	@Override
+	public void write(int oneByte) throws IOException {
+		int outputLen = mCipher.getUpdateOutputSize(1);
+		
+		if ( outputLen > 0 ) {
+			byte[] block = new byte[outputLen];
+			int bytes = mCipher.processByte((byte)oneByte, block, 0);
+			
+			if ( bytes > 0 ) {
+				mOS.write(block, 0, bytes);
+			}
+		}
+	}
+
+}

src/com/android/keepass/keepasslib/NullOutputStream.java

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2009 Brian Pellin.
+ *     
+ * This file is part of KeePassDroid.
+ *
+ *  KeePassDroid 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, either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  KeePassDroid 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 KeePassDroid.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+package com.android.keepass.keepasslib;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class NullOutputStream extends OutputStream {
+
+	@Override
+	public void close() throws IOException {
+		super.close();
+	}
+
+	@Override
+	public void flush() throws IOException {
+		super.flush();
+	}
+
+	@Override
+	public void write(byte[] buffer, int offset, int count) throws IOException {
+		super.write(buffer, offset, count);
+	}
+
+	@Override
+	public void write(byte[] buffer) throws IOException {
+		super.write(buffer);
+	}
+
+	@Override
+	public void write(int oneByte) throws IOException {
+	}
+
+}

src/com/android/keepass/keepasslib/PwManagerOutput.java

@@ -57,43 +57,20 @@ public class PwManagerOutput {
 		mDebug = debug;
 	}
 	
-	/*
-	public void close() throws PwManagerOutputException {
-		try {
-			mOS.close();
-		} catch (IOException e) {
-			throw new PwManagerOutputException("Failed to close stream.");
-		}
-	}
-	*/
-
 	public byte[] getFinalKey(PwDbHeader header) throws PwManagerOutputException {
-
-		// Write checksum Checksum
-		MessageDigest md = null;
 		try {
-			md = MessageDigest.getInstance("SHA-256");
-		} catch (NoSuchAlgorithmException e) {
-			assert true;
-			throw new PwManagerOutputException("SHA-256 not implemented here.");
+			return ImporterV3.makeFinalKey(header.masterSeed, header.masterSeed2, mPM.masterKey, mPM.numKeyEncRounds);
+		} catch (IOException e) {
+			throw new PwManagerOutputException("Key creation failed: " + e.getMessage());
 		}
-		NullOutputStream nos = new NullOutputStream();
-		DigestOutputStream dos = new DigestOutputStream(nos, md);
-
-		byte[] transformedMasterKey = ImporterV3.transformMasterKey(header.masterSeed2, mPM.masterKey, mPM.numKeyEncRounds); 
-		try {
-			dos.write(header.masterSeed);
-			dos.write(transformedMasterKey);
-		} catch ( IOException e ) {
-			throw new PwManagerOutputException("Failed to build final key.");
-		}
-		
-		return md.digest();
-		
 	}
 	
-	public byte[] getFinalKey2(PwDbHeader header) {
-		return ImporterV3.makeFinalKey(header.masterSeed, header.masterSeed2, mPM.masterKey, mPM.numKeyEncRounds);
+	public byte[] getFinalKey2(PwDbHeader header) throws PwManagerOutputException {
+		try {
+			return ImporterV3.makeFinalKey(header.masterSeed, header.masterSeed2, mPM.masterKey, mPM.numKeyEncRounds);
+		} catch (IOException e) {
+			throw new PwManagerOutputException("Key creation failed: " + e.getMessage());
+		}
 	}
 	
 	public void output() throws PwManagerOutputException, IOException {
@@ -151,7 +128,7 @@ public class PwManagerOutput {
 		}
 
 		try {
-			cipher.init( Cipher.ENCRYPT_MODE, new SecretKeySpec(mPM.finalKey, "AES" ), new IvParameterSpec(header.encryptionIV) );
+			cipher.init( Cipher.ENCRYPT_MODE, new SecretKeySpec(finalKey, "AES" ), new IvParameterSpec(header.encryptionIV) );
 			CipherOutputStream cos = new CipherOutputStream(mOS, cipher);
 			outputPlanGroupAndEntries(cos);
 			cos.close();

src/org/phoneid/keepassj2me/ImporterV3.java

@@ -27,8 +27,10 @@ package org.phoneid.keepassj2me;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.UnsupportedEncodingException;
+import java.security.DigestOutputStream;
 import java.security.InvalidAlgorithmParameterException;
 import java.security.InvalidKeyException;
+import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 
 import javax.crypto.BadPaddingException;
@@ -49,6 +51,8 @@ import org.phoneid.PhoneIDUtil;
 import android.util.Log;
 
 import com.android.keepass.keepasslib.InvalidKeyFileException;
+import com.android.keepass.keepasslib.NullOutputStream;
+import com.android.keepass.keepasslib.PwManagerOutput.PwManagerOutputException;
 
 /**
  * Load a v3 database file.
@@ -267,17 +271,23 @@ public class ImporterV3 {
     return newManager;
  }
 
-  public static byte[] makeFinalKey(byte[] masterSeed, byte[] masterSeed2, byte[] masterKey, int numRounds) {
-	    byte[] transformedMasterKey = transformMasterKey(masterSeed2, masterKey, numRounds );
+  public static byte[] makeFinalKey(byte[] masterSeed, byte[] masterSeed2, byte[] masterKey, int numRounds) throws IOException {
 
-	    // Hash the master password with the salt in the file
-	    SHA256Digest md = new SHA256Digest();
-	    md.update( masterSeed, 0, masterSeed.length );
-	    md.update( transformedMasterKey, 0, transformedMasterKey.length );
-	    byte[] finalKey = new byte[md.getDigestSize()];
-	    md.doFinal(finalKey, 0);
-	    
-	    return finalKey;
+	  // Write checksum Checksum
+		MessageDigest md = null;
+		try {
+			md = MessageDigest.getInstance("SHA-256");
+		} catch (NoSuchAlgorithmException e) {
+			throw new IOException("SHA-256 not implemented here.");
+		}
+		NullOutputStream nos = new NullOutputStream();
+		DigestOutputStream dos = new DigestOutputStream(nos, md);
+
+		byte[] transformedMasterKey = ImporterV3.transformMasterKey(masterSeed2, masterKey, numRounds); 
+		dos.write(masterSeed);
+		dos.write(transformedMasterKey);
+		
+		return md.digest();
   }
 
   /**