diff --git a/signature.gemspec b/signature.gemspec
new file mode 100644
index 0000000..c70de53
--- /dev/null
+++ b/signature.gemspec
@@ -0,0 +1,57 @@
+# Generated by jeweler
+# DO NOT EDIT THIS FILE DIRECTLY
+# Instead, edit Jeweler::Tasks in Rakefile, and run the gemspec command
+# -*- encoding: utf-8 -*-
+
+Gem::Specification.new do |s|
+  s.name = %q{signature}
+  s.version = "0.1.1"
+
+  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.authors = ["Martyn Loughran"]
+  s.date = %q{2010-07-20}
+  s.description = %q{Simple key/secret based authentication for apis}
+  s.email = %q{me@mloughran.com}
+  s.extra_rdoc_files = [
+    "LICENSE",
+     "README.md"
+  ]
+  s.files = [
+    ".document",
+     ".gitignore",
+     "LICENSE",
+     "README.md",
+     "Rakefile",
+     "VERSION",
+     "lib/signature.rb",
+     "spec/signature_spec.rb",
+     "spec/spec.opts",
+     "spec/spec_helper.rb"
+  ]
+  s.homepage = %q{http://github.com/mloughran/signature}
+  s.rdoc_options = ["--charset=UTF-8"]
+  s.require_paths = ["lib"]
+  s.rubygems_version = %q{1.3.6}
+  s.summary = %q{Simple key/secret based authentication for apis}
+  s.test_files = [
+    "spec/signature_spec.rb",
+     "spec/spec_helper.rb"
+  ]
+
+  if s.respond_to? :specification_version then
+    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
+    s.specification_version = 3
+
+    if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
+      s.add_runtime_dependency(%q<ruby-hmac>, [">= 0"])
+      s.add_development_dependency(%q<rspec>, [">= 1.2.9"])
+    else
+      s.add_dependency(%q<ruby-hmac>, [">= 0"])
+      s.add_dependency(%q<rspec>, [">= 1.2.9"])
+    end
+  else
+    s.add_dependency(%q<ruby-hmac>, [">= 0"])
+    s.add_dependency(%q<rspec>, [">= 1.2.9"])
+  end
+end
+