diff --git a/meta/classes/sign_package_feed.bbclass b/meta/classes/sign_package_feed.bbclass
new file mode 100644
index 0000000..4263810
--- /dev/null
+++ b/meta/classes/sign_package_feed.bbclass
@@ -0,0 +1,31 @@
+# Class for signing package feeds
+#
+# Related configuration variables that will be used after this class is
+# iherited:
+# PACKAGE_FEED_PASSPHRASE_FILE
+#           Path to a file containing the passphrase of the signing key.
+# PACKAGE_FEED_GPG_NAME
+#           Name of the key to sign with. May be key id or key name.
+# GPG_BIN
+#           Optional variable for specifying the gpg binary/wrapper to use for
+#           signing.
+# GPG_PATH
+#           Optional variable for specifying the gnupg "home" directory:
+#
+inherit sanity
+
+PACKAGE_FEED_SIGN = '1'
+
+python () {
+    # Check sanity of configuration
+    for var in ('PACKAGE_FEED_GPG_NAME', 'PACKAGE_FEED_GPG_PASSPHRASE_FILE'):
+        if not d.getVar(var, True):
+            raise_sanity_error("You need to define %s in the config" % var, d)
+
+    # Set expected location of the public key
+    d.setVar('PACKAGE_FEED_GPG_PUBKEY',
+             os.path.join(d.getVar('STAGING_ETCDIR_NATIVE'),
+                                   'PACKAGE-FEED-GPG-PUBKEY'))
+}
+
+do_package_index[depends] += "signing-keys:do_export_public_keys"