import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class MD5Hash {
private static MessageDigest md;
static {
try {
md = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
// do nothing
}
}
public static byte[] encode(String str) {
if (str == null) {
return null;
}
return digest(str.getBytes());
}
public static byte[] encode(byte[] bytes) {
if (bytes == null) {
return null;
}
return digest(bytes);
}
private static byte[] digest(byte[] msg) {
md.reset();
return md.digest(msg);
}
}
