public class DESHelperTest {
@Test
public void testEncrypt() throws Exception {
DESHelper desHelper = DESHelper.getInstance("abcdefgh");
String src = "q3rgtasdfgqet83tseflgasdf^@$FSGaweg";
byte[] destBuf = desHelper.encrypt(src.getBytes("utf-8"));
byte[] srcBuf = desHelper.decrypt(destBuf);
Assert.assertEquals(src, new String(srcBuf, "utf-8"));
}