cannot send out sms

[nickyeng]

I have this following code which it makes me cannot send sms in my j2me application.

import com.sun.midp.ssl.CryptoException;

public class Encrypter {
	
	public static String toHexString(byte [] ab) {
		StringBuffer sb = new StringBuffer(ab.length * 2) ;

		 for(int i=0; i<ab.length; ++i) {
		 String sTemp = Integer.toHexString(0xFF & ab[i]) ;
		 if(1==sTemp.length()) {
		 sb.append("0") ;
		 }
		 sb.append(sTemp) ;
		 }
		 System.out.println(sb.toString());
		 
		 return sb.toString() ;
		 }

	public static String genHash(String s)
		  {
			 
		
		 byte[] ab = new byte[25];
		
		 try {
			 com.sun.midp.ssl.MessageDigest md = com.sun.midp.ssl.MessageDigest.getInstance(com.sun.midp.ssl.MessageDigest.ALG_SHA, true);
			
			 md.update(s.getBytes(), 0, s.length()) ;
 
			 System.out.println("in genHash method");
			 System.out.println("\t" + s);
			 System.out.println("\t" +md);
		
			 short sh = md.doFinal(s.getBytes(), 0, s.length(), ab, 0 );
			
			 System.out.println("\tsh = "+ sh);
			 
		 } catch (CryptoException e) {
			
			// TODO Auto-generated catch block
			e.printStackTrace();
		 } catch (Exception e) {
			 e.printStackTrace();
		 }
 
		 
		 return toHexString(ab) ;
	}

}

In my main class code i call this:

// the following line of code somehow hit error in my phone but not in Eclipse emulator.
String enc = Encrypter.genHash("SMS ME 12 12");

// String enc = "nwjefjf2wejfjwefjj23rj23jr32jf23f23f23jf23j";

boolean sent = message.sendSMS(smsc_number, enc);
		 				if(sent==true) {
		 					Alert info1=new Alert("Message Sent", enc ,null,AlertType.CONFIRMATION);
		 					info1.setTimeout(5000); 	
		 					display.setCurrent(info1,menu_list);	
		 				} else {
		 					Alert info2=new Alert("Sending Fail", "Could not sending out messsage.", null, AlertType.CONFIRMATION);
		 					info2.setTimeout(5000);
		 					display.setCurrent(info2, menu_list);
		 				}

when i click send button, my phone fail to sms out.

instead i test with

String enc = "nwjefjf2wejfjw efjj23rj23jr32j f23f23f23jf23j" ;

it successfully send out.

So the problem is in that Encrypter class.

Can anyone know where is wrong?

kindly
nickyeng