User: starksm 
  Date: 02/03/22 19:35:47

  Added:       src/main/org/jboss/test/security/interceptors
                        ClientEncryptionInterceptor.java
                        ServerEncryptionInterceptor.java
  Log:
  Interceptors used by the SRPUnitTestCase
  
  Revision  Changes    Path
  1.1                  
jbosstest/src/main/org/jboss/test/security/interceptors/ClientEncryptionInterceptor.java
  
  Index: ClientEncryptionInterceptor.java
  ===================================================================
  package org.jboss.test.security.interceptors;
  
  import java.io.Serializable;
  import java.security.GeneralSecurityException;
  import java.util.Arrays;
  import java.util.Iterator;
  import java.util.Set;
  import javax.crypto.Cipher;
  import javax.crypto.SealedObject;
  import javax.crypto.SecretKey;
  import javax.crypto.spec.IvParameterSpec;
  import javax.security.auth.Subject;
  
  import org.apache.log4j.Category;
  
  import org.jboss.invocation.Invocation;
  import org.jboss.proxy.Interceptor;
  import org.jboss.security.SecurityAssociation;
  import org.jboss.security.srp.SRPParameters;
  
  /** A client side interceptor that encrypts
  
  @author [EMAIL PROTECTED]
  @version $Revision: 1.1 $
  */
  public class ClientEncryptionInterceptor
     extends Interceptor
  {
     /** The is initialized the first time */
     private Cipher encryptCipher;
     private Cipher decryptCipher;
     private Category log = Category.getInstance(ClientEncryptionInterceptor.class);
  
     /** Creates a new instance of EncryptionInterceptor */
     public ClientEncryptionInterceptor()
     {
     }
     
     public Object invoke(Invocation mi) throws Throwable
     {
        if( encryptCipher == null )
        {
           Subject subject = SecurityAssociation.getSubject();
           initCipher(subject);
        }
  
        log.debug("invoke mi="+mi.getMethod());
        // Check for arguments to encrypt
        Object[] args = mi.getArguments();
        int length = args != null ? args.length : 0;
        for(int a = 0; a < length; a ++)
        {
           if( (args[a] instanceof Serializable) == false )
              continue;
           Serializable arg = (Serializable) args[a];
           SealedObject sarg = new SealedObject(arg, encryptCipher);
           args[a] = sarg;
           log.debug(" Sealed arg("+a+"): "+arg);
        }
  
        Interceptor next = getNext();
        Object value = next.invoke(mi);
        if( value instanceof SealedObject )
        {
           SealedObject svalue = (SealedObject) value;
           value = svalue.getObject(decryptCipher);
        }
        return value;
     }
  
     private void initCipher(Subject subject) throws GeneralSecurityException
     {
        Set credentials = subject.getPrivateCredentials(SecretKey.class);
        Iterator iter = credentials.iterator();
        SecretKey key = null;
        while( iter.hasNext() )
        {
           key = (SecretKey) iter.next();
        }
        if( key == null )
        {
           System.out.println("Subject: "+subject);
           throw new GeneralSecurityException("Failed to find SecretKey in 
Subject.PrivateCredentials");
        }
  
        credentials = subject.getPrivateCredentials(SRPParameters.class);
        iter = credentials.iterator();
        SRPParameters params = null;
        while( iter.hasNext() )
        {
           params = (SRPParameters) iter.next();
        }
        if( params == null )
           throw new GeneralSecurityException("Failed to find SRPParameters in 
Subject.PrivateCredentials");
  
        encryptCipher = Cipher.getInstance(key.getAlgorithm());
        IvParameterSpec iv = new IvParameterSpec(params.cipherIV);
        encryptCipher.init(Cipher.ENCRYPT_MODE, key, iv);
        decryptCipher = Cipher.getInstance(key.getAlgorithm());
        decryptCipher.init(Cipher.DECRYPT_MODE, key, iv);
     }
  }
  
  
  
  1.1                  
jbosstest/src/main/org/jboss/test/security/interceptors/ServerEncryptionInterceptor.java
  
  Index: ServerEncryptionInterceptor.java
  ===================================================================
  package org.jboss.test.security.interceptors;
  
  import java.io.Serializable;
  import java.security.GeneralSecurityException;
  import java.util.Arrays;
  import java.util.Iterator;
  import java.util.Set;
  import javax.crypto.Cipher;
  import javax.crypto.SealedObject;
  import javax.crypto.SecretKey;
  import javax.crypto.spec.IvParameterSpec;
  import javax.security.auth.Subject;
  
  import org.jboss.ejb.Container;
  import org.jboss.ejb.Interceptor;
  import org.jboss.ejb.plugins.AbstractInterceptor;
  import org.jboss.invocation.Invocation;
  import org.jboss.security.SecurityAssociation;
  import org.jboss.security.srp.SRPParameters;
  
  /** A server side interceptor that encrypts
  
  @author [EMAIL PROTECTED]
  @version $Revision: 1.1 $
  */
  public class ServerEncryptionInterceptor extends AbstractInterceptor
  {
     /** The is initialized the first time */
     private Cipher decryptCipher;
     private Cipher encryptCipher;
     private Container container;
  
     /** Creates a new instance of EncryptionInterceptor */
     public ServerEncryptionInterceptor()
     {
     }
  
     public void setContainer(Container container)
     {
        this.container = container;
     }
  
     public Container getContainer()
     {
        return container;
     }
  
     public Object invoke(Invocation mi) throws Exception
     {
        if( decryptCipher == null )
        {
           Subject subject = SecurityAssociation.getSubject();
           initCipher(subject);
        }
  
        log.debug("invoke mi="+mi.getMethod());
        // Check for arguments to decrypt
        Object[] args = mi.getArguments();
        int length = args != null ? args.length : 0;
        for(int a = 0; a < length; a ++)
        {
           if( (args[a] instanceof SealedObject) == false )
              continue;
           SealedObject sarg = (SealedObject) args[a];
           Object arg = sarg.getObject(decryptCipher);
           args[a] = arg;
           log.debug(" Unsealed arg("+a+"): "+arg);
        }
        // We must set the arguments because args[] may be a copy
        mi.setArguments(args);
  
        Interceptor next = getNext();
        Object value = next.invoke(mi);
        if( value instanceof Serializable )
        {
           Serializable svalue = (Serializable) value;
           value = new SealedObject(svalue, encryptCipher);
        }
        return value;
     }
  
     private void initCipher(Subject subject) throws GeneralSecurityException
     {
        Set credentials = subject.getPrivateCredentials(SecretKey.class);
        Iterator iter = credentials.iterator();
        SecretKey key = null;
        while( iter.hasNext() )
        {
           key = (SecretKey) iter.next();
        }
        if( key == null )
           throw new GeneralSecurityException("Failed to find SecretKey in 
Subject.PrivateCredentials");
  
        credentials = subject.getPrivateCredentials(SRPParameters.class);
        iter = credentials.iterator();
        SRPParameters params = null;
        while( iter.hasNext() )
        {
           params = (SRPParameters) iter.next();
        }
        if( params == null )
           throw new GeneralSecurityException("Failed to find SRPParameters in 
Subject.PrivateCredentials");
  
        encryptCipher = Cipher.getInstance(key.getAlgorithm());
        IvParameterSpec iv = new IvParameterSpec(params.cipherIV);
        encryptCipher.init(Cipher.ENCRYPT_MODE, key, iv);
        decryptCipher = Cipher.getInstance(key.getAlgorithm());
        decryptCipher.init(Cipher.DECRYPT_MODE, key, iv);
     }
  }
  
  
  

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