1 files changed, 36 insertions, 0 deletions
diff --git a/lib/openssl/pkey.rb b/lib/openssl/pkey.rb
new file mode 100644
index 00000000..007934f8
--- /dev/null
+++ b/lib/openssl/pkey.rb
@@ -0,0 +1,36 @@
+module OpenSSL
+  module PKey
+    if defined?(OpenSSL::PKey::DH)
+
+    class DH
+      DEFAULT_512 = new <<-_end_of_pem_
+-----BEGIN DH PARAMETERS-----
+MEYCQQD0zXHljRg/mJ9PYLACLv58Cd8VxBxxY7oEuCeURMiTqEhMym16rhhKgZG2
+zk2O9uUIBIxSj+NKMURHGaFKyIvLAgEC
+-----END DH PARAMETERS-----
+      _end_of_pem_
+
+      DEFAULT_1024 = new <<-_end_of_pem_
+-----BEGIN DH PARAMETERS-----
+MIGHAoGBAJ0lOVy0VIr/JebWn0zDwY2h+rqITFOpdNr6ugsgvkDXuucdcChhYExJ
+AV/ZD2AWPbrTqV76mGRgJg4EddgT1zG0jq3rnFdMj2XzkBYx3BVvfR0Arnby0RHR
+T4h7KZ/2zmjvV+eF8kBUHBJAojUlzxKj4QeO2x20FP9X5xmNUXeDAgEC
+-----END DH PARAMETERS-----
+      _end_of_pem_
+    end
+
+    DEFAULT_TMP_DH_CALLBACK = lambda { |ctx, is_export, keylen|
+      warn "using default DH parameters." if $VERBOSE
+      case keylen
+      when 512  then OpenSSL::PKey::DH::DEFAULT_512
+      when 1024 then OpenSSL::PKey::DH::DEFAULT_1024
+      else
+        nil
+      end
+    }
+
+    else
+      DEFAULT_TMP_DH_CALLBACK = nil
+    end
+  end
+end