diff --git a/Gemfile b/Gemfile
index ec8c558..385e48d 100755
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,4 @@
-source 'https://rubygems.org'
+source 'http://ruby.taobao.org'
 
 # Specify your gem's dependencies in qiniu-s3.gemspec
 gemspec
diff --git a/lib/qiniu/rs/auth.rb b/lib/qiniu/rs/auth.rb
index e7b2ca9..ff7aca8 100755
--- a/lib/qiniu/rs/auth.rb
+++ b/lib/qiniu/rs/auth.rb
@@ -38,7 +38,7 @@ module Qiniu
           @refresh_token = refresh_token
         end
 
-        def call(url, data, retry_times = 0)
+        def call_with_logged_in(url, data, retry_times = 0)
           raise MissingAccessToken if @access_token.nil?
           code, data = http_request url, data, {:access_token => @access_token}
           if code == 401
@@ -51,16 +51,25 @@ module Qiniu
             if code == 200
               retry_times += 1
               if Config.settings[:auto_reconnect] && retry_times < Config.settings[:max_retry_times]
-                return call(url, data, retry_times)
+                return call_with_logged_in(url, data, retry_times)
               end
             end
           end
           [code, data]
         end
 
+        def call_with_signature(url, data, retry_times = 0)
+          code, data = http_request url, data, {:signature_auth => true}
+          [code, data]
+        end
+
         def request(url, data = nil)
           begin
-            code, data = Auth.call(url, data)
+            if Config.settings[:access_key].empty? || Config.settings[:secret_key].empty?
+              code, data = Auth.call_with_logged_in(url, data)
+            else
+              code, data = Auth.call_with_signature(url, data)
+            end
           rescue [MissingAccessToken, MissingRefreshToken, MissingUsernameOrPassword] => e
             Log.logger.error e
             code, data = 401, {}
diff --git a/lib/qiniu/rs/config.rb b/lib/qiniu/rs/config.rb
index 7b1f6e4..28e5a73 100755
--- a/lib/qiniu/rs/config.rb
+++ b/lib/qiniu/rs/config.rb
@@ -21,9 +21,13 @@ module Qiniu
           :content_type    => 'application/x-www-form-urlencoded',
           :auth_url        => "https://acc.qbox.me/oauth2/token",
           :rs_host         => "http://rs.qbox.me:10100",
+          #:rs_host         => "http://localhost:10100",
           :io_host         => "http://iovip.qbox.me",
-          :client_id       => "",
-          :client_secret   => "",
+          #:io_host         => "http://localhost:10200",
+          :client_id       => "a75604760c4da4caaa456c0c5895c061c3065c5a",
+          :client_secret   => "75df554a39f58accb7eb293b550fa59618674b7d",
+          :access_key      => "",
+          :secret_key      => "",
           :auto_reconnect  => true,
           :max_retry_times => 5
         }
diff --git a/lib/qiniu/rs/utils.rb b/lib/qiniu/rs/utils.rb
index 0009cde..0175524 100755
--- a/lib/qiniu/rs/utils.rb
+++ b/lib/qiniu/rs/utils.rb
@@ -5,6 +5,7 @@ require 'json'
 require 'zlib'
 require 'base64'
 require 'rest_client'
+require 'hmac-sha1'
 require 'qiniu/rs/exceptions'
 
 module Qiniu
@@ -37,7 +38,12 @@ module Qiniu
           :accept => :json,
           :user_agent => Config.settings[:user_agent]
         }
-        header_options.merge!('Authorization' => "Bearer #{options[:access_token]}") if options[:access_token]
+        if options[:signature_auth] && options[:signature_auth] == true
+          signature_token = generate_qbox_signature(Config.settings[:access_key], Config.settings[:secret_key], url, data)
+          header_options.merge!('Authorization' => "QBox #{signature_token}")
+        elsif options[:access_token]
+          header_options.merge!('Authorization' => "Bearer #{options[:access_token]}")
+        end
         case options[:method]
         when :get
           response = RestClient.get url, header_options
@@ -124,6 +130,22 @@ module Qiniu
         File.open(filepath, "rb") { |f| Zlib.crc32 f.read }
       end
 
+      def generate_qbox_signature(access_key, secret_key, url, params)
+        uri = URI.parse(url)
+        signature = uri.path
+        query_string = uri.query
+        signature += '?' + query_string if !query_string.nil? && !query_string.empty?
+        signature += "\n";
+        if params.is_a?(Hash)
+            total_param = params.map { |key, value| key.to_s+"="+value.to_s }
+            signature += total_param.join("&")
+        end
+        hmac = HMAC::SHA1.new(secret_key)
+        hmac.update(signature)
+        encoded_digest = urlsafe_base64_encode(hmac.digest)
+        %Q(#{access_key}:#{encoded_digest})
+      end
+
     end
   end
 end
diff --git a/lib/qiniu/rs/version.rb b/lib/qiniu/rs/version.rb
index 4a7eaf0..d72d0e4 100755
--- a/lib/qiniu/rs/version.rb
+++ b/lib/qiniu/rs/version.rb
@@ -2,6 +2,6 @@
 
 module Qiniu
   module RS
-    VERSION = "1.1.0"
+    VERSION = "2.0.1"
   end
 end
diff --git a/qiniu-rs.gemspec b/qiniu-rs.gemspec
index 5844ef0..ef1bb5f 100755
--- a/qiniu-rs.gemspec
+++ b/qiniu-rs.gemspec
@@ -5,8 +5,8 @@ require File.expand_path('../lib/qiniu/rs/version', __FILE__)
 Gem::Specification.new do |gem|
   gem.authors       = ["why404"]
   gem.email         = ["why404@gmail.com"]
-  gem.description   = %q{Qiniu Cloud Storage SDK for Ruby. See: http://docs.qiniutek.com/v1/sdk/ruby/}
-  gem.summary       = %q{Qiniu Cloud Storage SDK for Ruby}
+  gem.description   = %q{Qiniu Resource (Cloud) Storage SDK for Ruby. See: http://docs.qiniutek.com/v2/sdk/ruby/}
+  gem.summary       = %q{Qiniu Resource (Cloud) Storage SDK for Ruby}
   gem.homepage      = "https://github.com/why404/qiniu-rs"
 
   gem.files         = `git ls-files`.split($\)
@@ -17,11 +17,12 @@ Gem::Specification.new do |gem|
   gem.version       = Qiniu::RS::VERSION
 
   # specify any dependencies here; for example:
-  gem.add_development_dependency "rake"
-  gem.add_development_dependency "rspec"
-  gem.add_development_dependency "fakeweb"
-  gem.add_runtime_dependency "json"
-  gem.add_runtime_dependency "rest-client"
-  gem.add_runtime_dependency "mime-types"
-  gem.add_runtime_dependency "jruby-openssl" if RUBY_PLATFORM == "java"
+  gem.add_development_dependency "rake", "~> 0.9.2.2"
+  gem.add_development_dependency "rspec", "~> 2.10.0"
+  gem.add_development_dependency "fakeweb", "~> 1.3.0"
+  gem.add_runtime_dependency "json", "~> 1.7.3"
+  gem.add_runtime_dependency "rest-client", "~> 1.6.7"
+  gem.add_runtime_dependency "mime-types", "~> 1.19"
+  gem.add_runtime_dependency "ruby-hmac", "~> 0.4.0"
+  gem.add_runtime_dependency "jruby-openssl", "~> 0.7.7" if RUBY_PLATFORM == "java"
 end
diff --git a/spec/qiniu/rs/image_logo_for_test.png b/spec/qiniu/rs/image_logo_for_test.png
new file mode 100644
index 0000000..571c069
Binary files /dev/null and b/spec/qiniu/rs/image_logo_for_test.png differ
diff --git a/spec/qiniu/rs/image_spec.rb b/spec/qiniu/rs/image_spec.rb
index dc96723..9075040 100755
--- a/spec/qiniu/rs/image_spec.rb
+++ b/spec/qiniu/rs/image_spec.rb
@@ -2,14 +2,15 @@
 
 require 'spec_helper'
 require 'qiniu/rs/auth'
-require 'qiniu/rs/rs'
+require 'qiniu/rs'
 require 'qiniu/rs/image'
 
 module Qiniu
   module RS
     describe Image do
 
-      before :all do
+      before :each do
+=begin
         code, data = Qiniu::RS::Auth.exchange_by_password!("test@qbox.net", "test")
         code.should == 200
         data.should be_an_instance_of(Hash)
@@ -17,20 +18,30 @@ module Qiniu
         data["refresh_token"].should_not be_empty
         data["refresh_token"].should_not be_empty
         puts data.inspect
+=end
 
         @bucket = "test_images"
-        @key = "test_image.jpg"
-        code2, data2 = Qiniu::RS::RS.get(@bucket, @key)
-        code2.should == 200
-        data2["url"].should_not be_empty
-        puts data2.inspect
+        @key = "image_logo_for_test.png"
 
-        @download_url = data2["url"]
+        local_file = File.expand_path('../' + @key, __FILE__)
+
+        put_url = Qiniu::RS.put_auth(10)
+        put_url.should_not be_false
+        put_url.should_not be_empty
+        result = Qiniu::RS.upload :url => put_url,
+                                  :file => local_file,
+                                  :bucket => @bucket,
+                                  :key => @key,
+                                  :enable_crc32_check => true
+        result.should be_true
       end
 
       context ".info" do
         it "should works" do
-          code, data = Qiniu::RS::Image.info(@download_url)
+          result = Qiniu::RS.get(@bucket, @key)
+          result["url"].should_not be_empty
+          puts result.inspect
+          code, data = Qiniu::RS::Image.info(result["url"])
           code.should == 200
           puts data.inspect
         end
diff --git a/spec/qiniu/rs/io_spec.rb b/spec/qiniu/rs/io_spec.rb
index 7e4b042..0563ca8 100755
--- a/spec/qiniu/rs/io_spec.rb
+++ b/spec/qiniu/rs/io_spec.rb
@@ -10,6 +10,7 @@ module Qiniu
     describe IO do
 
       before :all do
+=begin
         code, data = Qiniu::RS::Auth.exchange_by_password!("test@qbox.net", "test")
         code.should == 200
         data.should be_an_instance_of(Hash)
@@ -17,6 +18,7 @@ module Qiniu
         data["refresh_token"].should_not be_empty
         data["refresh_token"].should_not be_empty
         puts data.inspect
+=end
 
         code2, data2 = Qiniu::RS::IO.put_auth()
         code2.should == 200
diff --git a/spec/qiniu/rs/rs_spec.rb b/spec/qiniu/rs/rs_spec.rb
index f48ba29..960ab85 100755
--- a/spec/qiniu/rs/rs_spec.rb
+++ b/spec/qiniu/rs/rs_spec.rb
@@ -11,6 +11,7 @@ module Qiniu
     describe RS do
 
       before :all do
+=begin
         code, data = Qiniu::RS::Auth.exchange_by_password!("test@qbox.net", "test")
         code.should == 200
         data.should be_an_instance_of(Hash)
@@ -18,6 +19,7 @@ module Qiniu
         data["refresh_token"].should_not be_empty
         data["refresh_token"].should_not be_empty
         puts data.inspect
+=end
 
         code2, data2 = Qiniu::RS::IO.put_auth()
         code2.should == 200
diff --git a/spec/qiniu/rs_spec.rb b/spec/qiniu/rs_spec.rb
index 2ba7500..61ac14e 100755
--- a/spec/qiniu/rs_spec.rb
+++ b/spec/qiniu/rs_spec.rb
@@ -12,12 +12,14 @@ module Qiniu
       @domain = 'cdn.example.com'
     end
 
+=begin
     context ".login!" do
       it "should works" do
         result = Qiniu::RS.login!("test@qbox.net", "test")
         result.should be_true
       end
     end
+=end
 
     context ".put_auth" do
       it "should works" do
@@ -136,7 +138,7 @@ module Qiniu
 
     context ".image_info" do
       it "should works" do
-        data = Qiniu::RS.get("test_images", "test_image.jpg")
+        data = Qiniu::RS.get("test_images", "image_logo_for_test.png")
         data.should_not be_false
         data.should_not be_empty
         puts data.inspect
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index a025c73..4161bd4 100755
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -6,7 +6,7 @@ require 'rspec'
 
 RSpec.configure do |config|
   config.before :all do
-    Qiniu::RS.establish_connection! :client_id     => "abcd0c7edcdf914228ed8aa7c6cee2f2bc6155e2",
-                                    :client_secret => "fc9ef8b171a74e197b17f85ba23799860ddf3b9c"
+    Qiniu::RS.establish_connection! :access_key => "3fPHl_SLkPXdioqI_A8_NGngPWVJhlDk2ktRjogH",
+                                    :secret_key => "bXTPMDJrVYRJUiSDRFtFYwycVD_mjXxYWrCYlDHy"
   end
 end