persona 
Package for using persona in webapps.
store := persona.NewStore(cookieSecret)
persona := persona.New(store, "http://localhost:8080", []string{"john.doe@example.com"})
http.Handle("/", persona.Switch(SignInHandler, SignedOutHandler))
http.Handle("/secret", persona.Protect(SecretHandler))
http.Handle("/sign-in", persona.SignIn)
http.Handle("/sign-out", persona.SignOut)
then add this to your html,
<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
<script src="https://login.persona.org/include.js"></script>
<script>
function gotAssertion(assertion) {
// got an assertion, now send it up to the server for verification
if (assertion !== null) {
$.ajax({
type: 'POST',
url: '/sign-in',
data: { assertion: assertion },
success: function(res, status, xhr) {
window.location.reload();
},
error: function(xhr, status, res) {
alert("sign-in failure" + res);
}
});
}
};
jQuery(function($) {
$('#browserid').click(function() {
navigator.id.get(gotAssertion);
});
});
</script>