asdf.js

(function () {
  
  encrypt = function(arguments) {
    newPromise = _getPublicKey();

    newPromise.success(function(results) {
      results.pubKey === 'Foobar'; // true
    })
  }

  _getPublicKey = function() {
    var httpPromise = $http.get('blah');

    var deferred = $q.defer();

    var newPromise = deferred.promise;

    httpPromise.success(function(response) {
      
      // Cache response
      newPromise.resolve( { pubKey: 'Foobar' } );

    });

    return newPromise;
  }
})();