(3) Android

android.java

import java.security.MessageDigest;
import java.io.UnsupportedEncodingException;
import java.security.NoSuchAlgorithmException;

class android{
	private static final char[] keys = { '2', '4', '3', '5', '7', '0', 'B', 'E', 'D', '1', 'C', '6', '9', '8', 'F', 'A' };
	private static String getPass(String mailaddr, String passcode){
		mailaddr = mailaddr.trim();
		passcode = passcode.trim();
		String result="";
		try{
			MessageDigest md = MessageDigest.getInstance("SHA-1");
			byte[] cbytes = md.digest((mailaddr + passcode).getBytes("8859_1"));
			StringBuilder ptext = new StringBuilder();

			int i = 0;
			while (true){
				if (i >= 10){
					result = ptext.toString();
					break;
				}
				int n = cbytes[i] ^ cbytes[i + 10];
				ptext.append(keys[n >> 4 & 0xF]);
				ptext.append(keys[n & 0xF]);
				if (i % 2 == 1) ptext.append(' ');
				i += 1;
			}

		}catch (UnsupportedEncodingException localUnsupportedEncodingException){
		}catch (NoSuchAlgorithmException localNoSuchAlgorithmException){
		}
		return result;
	}
	public static void main( String [] args ){
		System.out.println(getPass(args[0], args[1]));
	}
}