diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..7adf0af01
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "cisco-hash-sigs"]
+	path = cisco-hash-sigs
+	url = https://github.com/cisco/hash-sigs.git
diff --git a/cisco-hash-sigs b/cisco-hash-sigs
new file mode 160000
index 000000000..b0631b889
--- /dev/null
+++ b/cisco-hash-sigs
@@ -0,0 +1 @@
+Subproject commit b0631b8891295bf2929e68761205337b7c031726