var vm = this;

  if (rememberMeService('7ZXYZ@L') && rememberMeService('UU@#90')) {
    vm.username = AuthenticationService.Base64.decode(rememberMeService('7ZXYZ@L'));
    vm.password = AuthenticationService.Base64.decode(rememberMeService('UU@#90'));
  }



  vm.rememberMe = function () {
    if (vm.remember) {

      rememberMeService('7ZXYZ@L', AuthenticationService.Base64.encode(vm.username));
      rememberMeService('UU@#90', AuthenticationService.Base64.encode(vm.password));
    } else {
      rememberMeService('7ZXYZ@L', '');
      rememberMeService('UU@#90', '');
    }}

var Base64 = {

        keyStr: 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=',

        encode: function (input) {
            var output = "";
            var chr1, chr2, chr3 = "";
            var enc1, enc2, enc3, enc4 = "";
            var i = 0;

            do {
                chr1 = input.charCodeAt(i++);
                chr2 = input.charCodeAt(i++);
                chr3 = input.charCodeAt(i++);

                enc1 = chr1 >> 2;
                enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
                enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
                enc4 = chr3 & 63;

                if (isNaN(chr2)) {
                    enc3 = enc4 = 64;
                } else if (isNaN(chr3)) {
                    enc4 = 64;
                }

                output = output +
                    this.keyStr.charAt(enc1) +
                    this.keyStr.charAt(enc2) +
                    this.keyStr.charAt(enc3) +
                    this.keyStr.charAt(enc4);
                chr1 = chr2 = chr3 = "";
                enc1 = enc2 = enc3 = enc4 = "";
            } while (i < input.length);

            return output;
        },

        decode: function (input) {
            var output = "";
            var chr1, chr2, chr3 = "";
            var enc1, enc2, enc3, enc4 = "";
            var i = 0;

            // remove all characters that are not A-Z, a-z, 0-9, +, /, or =
            var base64test = /[^A-Za-z0-9+/=]/g;
            if (base64test.exec(input)) {
                window.alert("There were invalid base64 characters in the input text.n" +
                    "Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='n" +
                    "Expect errors in decoding.");
            }
            input = input.replace(/[^A-Za-z0-9+/=]/g, "");

            do {
                enc1 = this.keyStr.indexOf(input.charAt(i++));
                enc2 = this.keyStr.indexOf(input.charAt(i++));
                enc3 = this.keyStr.indexOf(input.charAt(i++));
                enc4 = this.keyStr.indexOf(input.charAt(i++));

                chr1 = (enc1 << 2) | (enc2 >> 4);
                chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
                chr3 = ((enc3 & 3) << 6) | enc4;

                output = output + String.fromCharCode(chr1);

                if (enc3 != 64) {
                    output = output + String.fromCharCode(chr2);
                }
                if (enc4 != 64) {
                    output = output + String.fromCharCode(chr3);
                }

                chr1 = chr2 = chr3 = "";
                enc1 = enc2 = enc3 = enc4 = "";

            } while (i < input.length);

            return output;
        }
    };

<input data-ng-click="vm.rememberMe()" data-ng-model="vm.remember" name="remember" type="checkbox">   Remember Me