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Code Issues Projects Releases Wiki Activity

Look! No BouncyCastle. Thanks to @macer1 for helping out with this.

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This commit is contained in:
md_5 2012-11-17 11:45:52 +11:00
parent 5906617a40
commit 596db51a8e
4 changed files with 16 additions and 29 deletions
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5
pom.xml
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@ -76,11 +76,6 @@
<artifactId>mendax</artifactId>
<version>1.4.4-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-ext-jdk15on</artifactId>
<version>1.47</version>
</dependency>
<dependency>
<groupId>org.yaml</groupId>
<artifactId>snakeyaml</artifactId>

22
src/main/java/net/md_5/bungee/EncryptionUtil.java
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@ -6,6 +6,7 @@ import java.io.InputStreamReader;
import java.math.BigInteger;
import java.net.URL;
import java.net.URLEncoder;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.KeyFactory;
@ -15,7 +16,6 @@ import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.SecureRandom;
import java.security.Security;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.X509EncodedKeySpec;
import java.util.Arrays;
@ -25,15 +25,10 @@ import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import net.md_5.bungee.packet.PacketFCEncryptionResponse;
import net.md_5.bungee.packet.PacketFDEncryptionRequest;
import org.bouncycastle.crypto.BufferedBlockCipher;
import org.bouncycastle.crypto.engines.AESFastEngine;
import org.bouncycastle.crypto.modes.CFBBlockCipher;
import org.bouncycastle.crypto.params.KeyParameter;
import org.bouncycastle.crypto.params.ParametersWithIV;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
/**
* Class containing all encryption related methods for the proxy.
@ -45,11 +40,6 @@ public class EncryptionUtil
private static final Random random = new Random();
private static KeyPair keys;
static
{
Security.addProvider(new BouncyCastleProvider());
}
public static PacketFDEncryptionRequest encryptRequest() throws NoSuchAlgorithmException
{
if (keys == null)
@ -106,16 +96,16 @@ public class EncryptionUtil
return "YES".equals(reply);
}
public static BufferedBlockCipher getCipher(boolean forEncryption, Key shared)
public static Cipher getCipher(int opMode, Key shared) throws InvalidAlgorithmParameterException, InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException
{
BufferedBlockCipher cip = new BufferedBlockCipher(new CFBBlockCipher(new AESFastEngine(), 8));
cip.init(forEncryption, new ParametersWithIV(new KeyParameter(shared.getEncoded()), shared.getEncoded(), 0, 16));
Cipher cip = Cipher.getInstance("AES/CFB8/NoPadding");
cip.init(opMode, shared, new IvParameterSpec(shared.getEncoded()));
return cip;
}
public static SecretKey getSecret()
{
byte[] rand = new byte[32];
byte[] rand = new byte[16];
secure.nextBytes(rand);
return new SecretKeySpec(rand, "AES");
}

9
src/main/java/net/md_5/bungee/InitialHandler.java
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@ -5,6 +5,9 @@ import java.io.OutputStream;
import java.net.Socket;
import java.util.ArrayList;
import java.util.List;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.SecretKey;
import net.md_5.bungee.packet.Packet2Handshake;
import net.md_5.bungee.packet.PacketFCEncryptionResponse;
@ -12,8 +15,6 @@ import net.md_5.bungee.packet.PacketFDEncryptionRequest;
import net.md_5.bungee.packet.PacketFFKick;
import net.md_5.bungee.packet.PacketInputStream;
import net.md_5.bungee.plugin.LoginEvent;
import org.bouncycastle.crypto.io.CipherInputStream;
import org.bouncycastle.crypto.io.CipherOutputStream;
public class InitialHandler implements Runnable
{
@ -66,8 +67,8 @@ public class InitialHandler implements Runnable
}
out.write(new PacketFCEncryptionResponse().getPacket());
in = new PacketInputStream(new CipherInputStream(socket.getInputStream(), EncryptionUtil.getCipher(false, shared)));
out = new CipherOutputStream(socket.getOutputStream(), EncryptionUtil.getCipher(true, shared));
in = new PacketInputStream(new CipherInputStream(socket.getInputStream(), EncryptionUtil.getCipher(Cipher.DECRYPT_MODE, shared)));
out = new CipherOutputStream(socket.getOutputStream(), EncryptionUtil.getCipher(Cipher.ENCRYPT_MODE, shared));
List<byte[]> customPackets = new ArrayList<>();
byte[] custom;
while (Util.getId((custom = in.readPacket())) != 0xCD)

9
src/main/java/net/md_5/bungee/ServerConnection.java
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@ -4,6 +4,9 @@ import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.security.PublicKey;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.SecretKey;
import net.md_5.bungee.packet.Packet1Login;
import net.md_5.bungee.packet.Packet2Handshake;
@ -13,8 +16,6 @@ import net.md_5.bungee.packet.PacketFCEncryptionResponse;
import net.md_5.bungee.packet.PacketFDEncryptionRequest;
import net.md_5.bungee.packet.PacketFFKick;
import net.md_5.bungee.packet.PacketInputStream;
import org.bouncycastle.crypto.io.CipherInputStream;
import org.bouncycastle.crypto.io.CipherOutputStream;
/**
* Class representing a connection from the proxy to the server; ie upstream.
@ -58,8 +59,8 @@ public class ServerConnection extends GenericConnection
throw new RuntimeException("Server did not send encryption enable");
}
in = new PacketInputStream(new CipherInputStream(socket.getInputStream(), EncryptionUtil.getCipher(false, myKey)));
out = new CipherOutputStream(out, EncryptionUtil.getCipher(true, myKey));
in = new PacketInputStream(new CipherInputStream(socket.getInputStream(), EncryptionUtil.getCipher(Cipher.DECRYPT_MODE, myKey)));
out = new CipherOutputStream(out, EncryptionUtil.getCipher(Cipher.ENCRYPT_MODE, myKey));
for (byte[] custom : user.loginPackets)
{