llvm-gcc-4.2/libjava/classpath/gnu/javax/net/ssl/PrivateCredentials.java - llvm-archive - Git at Google

 /* PrivateCredentials.java -- private key/certificate pairs.
    Copyright (C) 2006  Free Software Foundation, Inc.

 This file is a part of GNU Classpath.

 GNU Classpath 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.

 GNU Classpath 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 GNU Classpath; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
 USA

 Linking this library statically or dynamically with other modules is
 making a combined work based on this library.  Thus, the terms and
 conditions of the GNU General Public License cover the whole
 combination.

 As a special exception, the copyright holders of this library give you
 permission to link this library with independent modules to produce an
 executable, regardless of the license terms of these independent
 modules, and to copy and distribute the resulting executable under
 terms of your choice, provided that you also meet, for each linked
 independent module, the terms and conditions of the license of that
 module.  An independent module is a module which is not derived from
 or based on this library.  If you modify this library, you may extend
 this exception to your version of the library, but you are not
 obligated to do so.  If you do not wish to do so, delete this
 exception statement from your version.  */


 package gnu.javax.net.ssl;

 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.EOFException;
 import java.io.InputStream;
 import java.io.IOException;

 import java.math.BigInteger;

 import java.security.InvalidKeyException;
 import java.security.KeyFactory;
 import java.security.NoSuchAlgorithmException;
 import java.security.PrivateKey;
 import java.security.Security;
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
 import java.security.cert.X509Certificate;
 import java.security.spec.DSAPrivateKeySpec;
 import java.security.spec.InvalidKeySpecException;
 import java.security.spec.KeySpec;
 import java.security.spec.RSAPrivateCrtKeySpec;

 import java.util.Collection;
 import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;

 import javax.net.ssl.ManagerFactoryParameters;
 import javax.security.auth.callback.Callback;
 import javax.security.auth.callback.CallbackHandler;
 import javax.security.auth.callback.PasswordCallback;
 import javax.security.auth.callback.UnsupportedCallbackException;

 import gnu.javax.security.auth.callback.ConsoleCallbackHandler;
 import gnu.java.security.hash.HashFactory;
 import gnu.java.security.hash.IMessageDigest;
 import gnu.javax.crypto.mode.IMode;
 import gnu.javax.crypto.mode.ModeFactory;
 import gnu.javax.crypto.pad.WrongPaddingException;

 import gnu.java.security.der.DER;
 import gnu.java.security.der.DERReader;

 /**
  * An instance of a manager factory parameters for holding a single
  * certificate/private key pair, encoded in PEM format.
  */
 public class PrivateCredentials implements ManagerFactoryParameters
 {

   // Fields.
   // -------------------------------------------------------------------------

   public static final String BEGIN_DSA = "-----BEGIN DSA PRIVATE KEY";
   public static final String END_DSA   = "-----END DSA PRIVATE KEY";
   public static final String BEGIN_RSA = "-----BEGIN RSA PRIVATE KEY";
   public static final String END_RSA   = "-----END RSA PRIVATE KEY";

   private List privateKeys;
   private List certChains;

   // Constructor.
   // -------------------------------------------------------------------------

   public PrivateCredentials()
   {
     privateKeys = new LinkedList();
     certChains = new LinkedList();
   }

   // Instance methods.
   // -------------------------------------------------------------------------

   public void add(InputStream certChain, InputStream privateKey)
     throws CertificateException, InvalidKeyException, InvalidKeySpecException,
            IOException, NoSuchAlgorithmException, WrongPaddingException
   {
     CertificateFactory cf = CertificateFactory.getInstance("X.509");
     Collection certs = cf.generateCertificates(certChain);
     X509Certificate[] chain = (X509Certificate[]) certs.toArray(new X509Certificate[0]);

     String alg = null;
     String line = readLine(privateKey);
     String finalLine = null;
     if (line.startsWith(BEGIN_DSA))
       {
         alg = "DSA";
         finalLine = END_DSA;
       }
     else if (line.startsWith(BEGIN_RSA))
       {
         alg = "RSA";
         finalLine = END_RSA;
       }
     else
       throw new IOException("Unknown private key type.");

     boolean encrypted = false;
     String cipher = null;
     String salt = null;
     StringBuffer base64 = new StringBuffer();
     while (true)
       {
         line = readLine(privateKey);
         if (line == null)
           throw new EOFException("premature end-of-file");
         else if (line.startsWith("Proc-Type: 4,ENCRYPTED"))
           encrypted = true;
         else if (line.startsWith("DEK-Info: "))
           {
             int i = line.indexOf(',');
             if (i < 0)
               cipher = line.substring(10).trim();
             else
               {
                 cipher = line.substring(10, i).trim();
                 salt = line.substring(i + 1).trim();
               }
           }
         else if (line.startsWith(finalLine))
           break;
         else if (line.length() > 0)
           {
             base64.append(line);
             base64.append(System.getProperty("line.separator"));
           }
       }

     byte[] enckey = Base64.decode(base64.toString());
     if (encrypted)
       {
         enckey = decryptKey(enckey, cipher, toByteArray(salt));
       }

     DERReader der = new DERReader(enckey);
     if (der.read().getTag() != DER.SEQUENCE)
       throw new IOException("malformed DER sequence");
     der.read(); // version

     KeyFactory kf = KeyFactory.getInstance(alg);
     KeySpec spec = null;
     if (alg.equals("DSA"))
       {
         BigInteger p = (BigInteger) der.read().getValue();
         BigInteger q = (BigInteger) der.read().getValue();
         BigInteger g = (BigInteger) der.read().getValue();
         der.read(); // y
         BigInteger x = (BigInteger) der.read().getValue();
         spec = new DSAPrivateKeySpec(x, p, q, g);
       }
     else
       {
         spec = new RSAPrivateCrtKeySpec(
           (BigInteger) der.read().getValue(),  // modulus
           (BigInteger) der.read().getValue(),  // pub exponent
           (BigInteger) der.read().getValue(),  // priv expenent
           (BigInteger) der.read().getValue(),  // prime p
           (BigInteger) der.read().getValue(),  // prime q
           (BigInteger) der.read().getValue(),  // d mod (p-1)
           (BigInteger) der.read().getValue(),  // d mod (q-1)
           (BigInteger) der.read().getValue()); // coefficient
       }
     privateKeys.add(kf.generatePrivate(spec));
     certChains.add(chain);
   }

   public List getPrivateKeys()
   {
     if (isDestroyed())
       {
         throw new IllegalStateException("this object is destroyed");
       }
     return privateKeys;
   }

   public List getCertChains()
   {
     return certChains;
   }

   public void destroy()
   {
     privateKeys.clear();
     privateKeys = null;
   }

   public boolean isDestroyed()
   {
     return (privateKeys == null);
   }

   // Own methods.
   // -------------------------------------------------------------------------

   private String readLine(InputStream in) throws IOException
   {
     boolean eol_is_cr = System.getProperty("line.separator").equals("\r");
     StringBuffer str = new StringBuffer();
     while (true)
       {
         int i = in.read();
         if (i == -1)
           {
             if (str.length() > 0)
               break;
             else
               return null;
           }
         else if (i == '\r')
           {
             if (eol_is_cr)
               break;
           }
         else if (i == '\n')
           break;
         else
           str.append((char) i);
       }
     return str.toString();
   }

   private byte[] decryptKey(byte[] ct, String cipher, byte[] salt)
     throws IOException, InvalidKeyException, WrongPaddingException
   {
     byte[] pt = new byte[ct.length];
     IMode mode = null;
     if (cipher.equals("DES-EDE3-CBC"))
       {
         mode = ModeFactory.getInstance("CBC", "TripleDES", 8);
         HashMap attr = new HashMap();
         attr.put(IMode.KEY_MATERIAL, deriveKey(salt, 24));
         attr.put(IMode.IV, salt);
         attr.put(IMode.STATE, new Integer(IMode.DECRYPTION));
         mode.init(attr);
       }
     else if (cipher.equals("DES-CBC"))
       {
         mode = ModeFactory.getInstance("CBC", "DES", 8);
         HashMap attr = new HashMap();
         attr.put(IMode.KEY_MATERIAL, deriveKey(salt, 8));
         attr.put(IMode.IV, salt);
         attr.put(IMode.STATE, new Integer(IMode.DECRYPTION));
         mode.init(attr);
       }
     else
       throw new IllegalArgumentException("unknown cipher: " + cipher);

     for (int i = 0; i < ct.length; i += 8)
       mode.update(ct, i, pt, i);

     int pad = pt[pt.length-1];
     if (pad < 1 || pad > 8)
       throw new WrongPaddingException();
     for (int i = pt.length - pad; i < pt.length; i++)
       {
         if (pt[i] != pad)
           throw new WrongPaddingException();
       }

     byte[] result = new byte[pt.length - pad];
     System.arraycopy(pt, 0, result, 0, result.length);
     return result;
   }

   private byte[] deriveKey(byte[] salt, int keylen)
     throws IOException
   {
     CallbackHandler passwordHandler = new ConsoleCallbackHandler();
     try
       {
         Class c = Class.forName(Security.getProperty("jessie.password.handler"));
         passwordHandler = (CallbackHandler) c.newInstance();
       }
     catch (Exception x) { }

     PasswordCallback passwdCallback =
       new PasswordCallback("Enter PEM passphrase: ", false);
     try
       {
         passwordHandler.handle(new Callback[] { passwdCallback });
       }
     catch (UnsupportedCallbackException uce)
       {
         throw new IOException("specified handler cannot handle passwords");
       }
     char[] passwd = passwdCallback.getPassword();

     IMessageDigest md5 = HashFactory.getInstance("MD5");
     byte[] key = new byte[keylen];
     int count = 0;
     while (count < keylen)
       {
         for (int i = 0; i < passwd.length; i++)
           md5.update((byte) passwd[i]);
         md5.update(salt, 0, salt.length);
         byte[] digest = md5.digest();
         int len = Math.min(digest.length, keylen - count);
         System.arraycopy(digest, 0, key, count, len);
         count += len;
         if (count >= keylen)
           break;
         md5.reset();
         md5.update(digest, 0, digest.length);
       }
     passwdCallback.clearPassword();
     return key;
   }

   private byte[] toByteArray(String hex)
   {
     hex = hex.toLowerCase();
     byte[] buf = new byte[hex.length() / 2];
     int j = 0;
     for (int i = 0; i < buf.length; i++)
       {
         buf[i] = (byte) ((Character.digit(hex.charAt(j++), 16) << 4) |
                           Character.digit(hex.charAt(j++), 16));
       }
     return buf;
   }
 }
	/* PrivateCredentials.java -- private key/certificate pairs.
	Copyright (C) 2006 Free Software Foundation, Inc.

	This file is a part of GNU Classpath.

	GNU Classpath 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.

	GNU Classpath 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 GNU Classpath; if not, write to the Free Software
	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
	USA

	Linking this library statically or dynamically with other modules is
	making a combined work based on this library. Thus, the terms and
	conditions of the GNU General Public License cover the whole
	combination.

	As a special exception, the copyright holders of this library give you
	permission to link this library with independent modules to produce an
	executable, regardless of the license terms of these independent
	modules, and to copy and distribute the resulting executable under
	terms of your choice, provided that you also meet, for each linked
	independent module, the terms and conditions of the license of that
	module. An independent module is a module which is not derived from
	or based on this library. If you modify this library, you may extend
	this exception to your version of the library, but you are not
	obligated to do so. If you do not wish to do so, delete this
	exception statement from your version. */


	package gnu.javax.net.ssl;

	import java.io.ByteArrayInputStream;
	import java.io.ByteArrayOutputStream;
	import java.io.EOFException;
	import java.io.InputStream;
	import java.io.IOException;

	import java.math.BigInteger;

	import java.security.InvalidKeyException;
	import java.security.KeyFactory;
	import java.security.NoSuchAlgorithmException;
	import java.security.PrivateKey;
	import java.security.Security;
	import java.security.cert.CertificateException;
	import java.security.cert.CertificateFactory;
	import java.security.cert.X509Certificate;
	import java.security.spec.DSAPrivateKeySpec;
	import java.security.spec.InvalidKeySpecException;
	import java.security.spec.KeySpec;
	import java.security.spec.RSAPrivateCrtKeySpec;

	import java.util.Collection;
	import java.util.HashMap;
	import java.util.LinkedList;
	import java.util.List;

	import javax.net.ssl.ManagerFactoryParameters;
	import javax.security.auth.callback.Callback;
	import javax.security.auth.callback.CallbackHandler;
	import javax.security.auth.callback.PasswordCallback;
	import javax.security.auth.callback.UnsupportedCallbackException;

	import gnu.javax.security.auth.callback.ConsoleCallbackHandler;
	import gnu.java.security.hash.HashFactory;
	import gnu.java.security.hash.IMessageDigest;
	import gnu.javax.crypto.mode.IMode;
	import gnu.javax.crypto.mode.ModeFactory;
	import gnu.javax.crypto.pad.WrongPaddingException;

	import gnu.java.security.der.DER;
	import gnu.java.security.der.DERReader;

	/**
	* An instance of a manager factory parameters for holding a single
	* certificate/private key pair, encoded in PEM format.
	*/
	public class PrivateCredentials implements ManagerFactoryParameters
	{

	// Fields.
	// -------------------------------------------------------------------------

	public static final String BEGIN_DSA = "-----BEGIN DSA PRIVATE KEY";
	public static final String END_DSA = "-----END DSA PRIVATE KEY";
	public static final String BEGIN_RSA = "-----BEGIN RSA PRIVATE KEY";
	public static final String END_RSA = "-----END RSA PRIVATE KEY";

	private List privateKeys;
	private List certChains;

	// Constructor.
	// -------------------------------------------------------------------------

	public PrivateCredentials()
	{
	privateKeys = new LinkedList();
	certChains = new LinkedList();
	}

	// Instance methods.
	// -------------------------------------------------------------------------

	public void add(InputStream certChain, InputStream privateKey)
	throws CertificateException, InvalidKeyException, InvalidKeySpecException,
	IOException, NoSuchAlgorithmException, WrongPaddingException
	{
	CertificateFactory cf = CertificateFactory.getInstance("X.509");
	Collection certs = cf.generateCertificates(certChain);
	X509Certificate[] chain = (X509Certificate[]) certs.toArray(new X509Certificate[0]);

	String alg = null;
	String line = readLine(privateKey);
	String finalLine = null;
	if (line.startsWith(BEGIN_DSA))
	{
	alg = "DSA";
	finalLine = END_DSA;
	}
	else if (line.startsWith(BEGIN_RSA))
	{
	alg = "RSA";
	finalLine = END_RSA;
	}
	else
	throw new IOException("Unknown private key type.");

	boolean encrypted = false;
	String cipher = null;
	String salt = null;
	StringBuffer base64 = new StringBuffer();
	while (true)
	{
	line = readLine(privateKey);
	if (line == null)
	throw new EOFException("premature end-of-file");
	else if (line.startsWith("Proc-Type: 4,ENCRYPTED"))
	encrypted = true;
	else if (line.startsWith("DEK-Info: "))
	{
	int i = line.indexOf(',');
	if (i < 0)
	cipher = line.substring(10).trim();
	else
	{
	cipher = line.substring(10, i).trim();
	salt = line.substring(i + 1).trim();
	}
	}
	else if (line.startsWith(finalLine))
	break;
	else if (line.length() > 0)
	{
	base64.append(line);
	base64.append(System.getProperty("line.separator"));
	}
	}

	byte[] enckey = Base64.decode(base64.toString());
	if (encrypted)
	{
	enckey = decryptKey(enckey, cipher, toByteArray(salt));
	}

	DERReader der = new DERReader(enckey);
	if (der.read().getTag() != DER.SEQUENCE)
	throw new IOException("malformed DER sequence");
	der.read(); // version

	KeyFactory kf = KeyFactory.getInstance(alg);
	KeySpec spec = null;
	if (alg.equals("DSA"))
	{
	BigInteger p = (BigInteger) der.read().getValue();
	BigInteger q = (BigInteger) der.read().getValue();
	BigInteger g = (BigInteger) der.read().getValue();
	der.read(); // y
	BigInteger x = (BigInteger) der.read().getValue();
	spec = new DSAPrivateKeySpec(x, p, q, g);
	}
	else
	{
	spec = new RSAPrivateCrtKeySpec(
	(BigInteger) der.read().getValue(), // modulus
	(BigInteger) der.read().getValue(), // pub exponent
	(BigInteger) der.read().getValue(), // priv expenent
	(BigInteger) der.read().getValue(), // prime p
	(BigInteger) der.read().getValue(), // prime q
	(BigInteger) der.read().getValue(), // d mod (p-1)
	(BigInteger) der.read().getValue(), // d mod (q-1)
	(BigInteger) der.read().getValue()); // coefficient
	}
	privateKeys.add(kf.generatePrivate(spec));
	certChains.add(chain);
	}

	public List getPrivateKeys()
	{
	if (isDestroyed())
	{
	throw new IllegalStateException("this object is destroyed");
	}
	return privateKeys;
	}

	public List getCertChains()
	{
	return certChains;
	}

	public void destroy()
	{
	privateKeys.clear();
	privateKeys = null;
	}

	public boolean isDestroyed()
	{
	return (privateKeys == null);
	}

	// Own methods.
	// -------------------------------------------------------------------------

	private String readLine(InputStream in) throws IOException
	{
	boolean eol_is_cr = System.getProperty("line.separator").equals("\r");
	StringBuffer str = new StringBuffer();
	while (true)
	{
	int i = in.read();
	if (i == -1)
	{
	if (str.length() > 0)
	break;
	else
	return null;
	}
	else if (i == '\r')
	{
	if (eol_is_cr)
	break;
	}
	else if (i == '\n')
	break;
	else
	str.append((char) i);
	}
	return str.toString();
	}

	private byte[] decryptKey(byte[] ct, String cipher, byte[] salt)
	throws IOException, InvalidKeyException, WrongPaddingException
	{
	byte[] pt = new byte[ct.length];
	IMode mode = null;
	if (cipher.equals("DES-EDE3-CBC"))
	{
	mode = ModeFactory.getInstance("CBC", "TripleDES", 8);
	HashMap attr = new HashMap();
	attr.put(IMode.KEY_MATERIAL, deriveKey(salt, 24));
	attr.put(IMode.IV, salt);
	attr.put(IMode.STATE, new Integer(IMode.DECRYPTION));
	mode.init(attr);
	}
	else if (cipher.equals("DES-CBC"))
	{
	mode = ModeFactory.getInstance("CBC", "DES", 8);
	HashMap attr = new HashMap();
	attr.put(IMode.KEY_MATERIAL, deriveKey(salt, 8));
	attr.put(IMode.IV, salt);
	attr.put(IMode.STATE, new Integer(IMode.DECRYPTION));
	mode.init(attr);
	}
	else
	throw new IllegalArgumentException("unknown cipher: " + cipher);

	for (int i = 0; i < ct.length; i += 8)
	mode.update(ct, i, pt, i);

	int pad = pt[pt.length-1];
	if (pad < 1 \|\| pad > 8)
	throw new WrongPaddingException();
	for (int i = pt.length - pad; i < pt.length; i++)
	{
	if (pt[i] != pad)
	throw new WrongPaddingException();
	}

	byte[] result = new byte[pt.length - pad];
	System.arraycopy(pt, 0, result, 0, result.length);
	return result;
	}

	private byte[] deriveKey(byte[] salt, int keylen)
	throws IOException
	{
	CallbackHandler passwordHandler = new ConsoleCallbackHandler();
	try
	{
	Class c = Class.forName(Security.getProperty("jessie.password.handler"));
	passwordHandler = (CallbackHandler) c.newInstance();
	}
	catch (Exception x) { }

	PasswordCallback passwdCallback =
	new PasswordCallback("Enter PEM passphrase: ", false);
	try
	{
	passwordHandler.handle(new Callback[] { passwdCallback });
	}
	catch (UnsupportedCallbackException uce)
	{
	throw new IOException("specified handler cannot handle passwords");
	}
	char[] passwd = passwdCallback.getPassword();

	IMessageDigest md5 = HashFactory.getInstance("MD5");
	byte[] key = new byte[keylen];
	int count = 0;
	while (count < keylen)
	{
	for (int i = 0; i < passwd.length; i++)
	md5.update((byte) passwd[i]);
	md5.update(salt, 0, salt.length);
	byte[] digest = md5.digest();
	int len = Math.min(digest.length, keylen - count);
	System.arraycopy(digest, 0, key, count, len);
	count += len;
	if (count >= keylen)
	break;
	md5.reset();
	md5.update(digest, 0, digest.length);
	}
	passwdCallback.clearPassword();
	return key;
	}

	private byte[] toByteArray(String hex)
	{
	hex = hex.toLowerCase();
	byte[] buf = new byte[hex.length() / 2];
	int j = 0;
	for (int i = 0; i < buf.length; i++)
	{
	buf[i] = (byte) ((Character.digit(hex.charAt(j++), 16) << 4) \|
	Character.digit(hex.charAt(j++), 16));
	}
	return buf;
	}
	}