Examples of java.security.Signature.update()

java.security.Signature.update()
Updates the data to be signed or verified by a byte. @param b the byte to use for the update. @exception SignatureException if this signature object is not initialized properly.

        
        final byte[] rawEphemeralPubkey = CryptoECCUtils.keyToRawdata(ephemeralKeyPair.getPublic());
        
        sig.update(rawMyPubkey);
          
        sig.update(rawEphemeralPubkey);
          
        final byte[] rawSign = sig.sign();
        
        final byte[] pad = new byte[random.nextInt(32)];

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        final byte[] IV = new byte[20 + random.nextInt(32)];
        
        random.nextBytes(IV);


        sig.update(IV);
        
        sig.update(sharedSecret);
        
        final byte[] rawSig = sig.sign();

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        random.nextBytes(IV);


        sig.update(IV);
        
        sig.update(sharedSecret);
        
        final byte[] rawSig = sig.sign();


        putBytes( buffer, IV, 65535 );

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    PrivateKey  priv = getMyPrivateKey( reason );
    
    Signature sig = CryptoECCUtils.getSignature( priv );
    
    try{
      sig.update( data );
      
      return( sig.sign());
      
    }catch( Throwable e ){

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    PublicKey  pub = CryptoECCUtils.rawdataToPubkey( public_key );
    
    Signature sig = CryptoECCUtils.getSignature( pub );
    
    try{
      sig.update( data );
      
      return( sig.verify( signature ));
      
    }catch( Throwable e ){

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    // key for signature is hash + version + size so we have some
    // control over auto-update process and prevent people from injecting
    // potentially huge bogus updates
  
    signature.update( encode( hash, version, size ));


    return( signature.sign());
  }
  
  protected static boolean

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    byte[]    sig )
  {
    try{
      Signature signature = CryptoECCUtils.getSignature( CryptoECCUtils.rawdataToPubkey( public_key ));
  
      signature.update( encode( hash, version, size ));
  
      return( signature.verify( sig ));
      
    }catch( Throwable e ){

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    try{
      Signature  verifier = Signature.getInstance("MD5withRSA" );
      
      verifier.initVerify( key_block_public_key );
      
      verifier.update( kb.getRequest() );


      if ( !verifier.verify( kb.getCertificate())){
      
        log.log( "KB: request verify failed for " + DHTLog.getString2( kb.getKey()));

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    try{
      Signature  verifier = Signature.getInstance("MD5withRSA" );
      
      verifier.initVerify( key_block_public_key );
      
      verifier.update( request );


      if ( !verifier.verify( signature )){
      
        return( false );
      }

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            Signature  sig = Signature.getInstance("MD5withRSA" );
            
            sig.initSign( key );
            
            sig.update( req );
            
            dhts[1].getTransport().getLocalContact().sendKeyBlock(
              new DHTTransportReplyHandlerAdapter()
              {
                public void

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