diff --git a/.gitmodules b/.gitmodules
index 85d6354..7ddc446 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -17,3 +17,10 @@
 [submodule "deps/curl"]
 	path = deps/curl
 	url = https://github.com/curl/curl.git
+
+[submodule "deps/libtomcrypt"]
+	path = deps/libtomcrypt
+	url = https://github.com/libtom/libtomcrypt.git
+[submodule "deps/libtommath"]
+	path = deps/libtommath
+	url = https://github.com/libtom/libtommath.git
diff --git a/deps/libtomcrypt b/deps/libtomcrypt
new file mode 160000
index 0000000..b96e96c
--- /dev/null
+++ b/deps/libtomcrypt
@@ -0,0 +1 @@
+Subproject commit b96e96cf8b22a931e8e91098ac37bc72f9e2f033
diff --git a/deps/libtommath b/deps/libtommath
new file mode 160000
index 0000000..7f96509
--- /dev/null
+++ b/deps/libtommath
@@ -0,0 +1 @@
+Subproject commit 7f96509df1a6b44867bbda56bbf2cb92524be8ef