diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..b26143331
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "m3crypto"]
+	path = m3crypto
+	url = git@github.com:research/m3crypto.git
diff --git a/m3crypto b/m3crypto
new file mode 160000
index 000000000..d4e8a6c42
--- /dev/null
+++ b/m3crypto
@@ -0,0 +1 @@
+Subproject commit d4e8a6c42a63219113099b8611197622c0d24294