How To Protect Your Blog Page Using Password

1. Login to your blogger Account >> Dashboard >> Edit Post >> Edit Pages

2. Now add the one of code given below to your page

<script language="JavaScript">
var password;
var pass1="PASSWORD-HERE";
password=prompt('Enter your password in order to view this page!',' ');
if (password==pass1) alert('Correct password, OK to enter!');
else {
  window.location="SITE-LINK";
}
</script>

Note: Replace PASSWORD-HERE with your password and SITE-LINK with your page

SITE-LINK : 2011/04/how-to-protect-your-blog-or-page-using.html

3.Now Save your "Page" and You are done,

cheers