diff --git a/.gitmodules b/.gitmodules
index b908ae2786bf..d36a19fd45f8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -14,3 +14,6 @@
 [submodule "c-deps/protobuf"]
 	path = c-deps/protobuf
 	url = https://github.com/cockroachdb/protobuf.git
+[submodule "c-deps/cryptopp"]
+	path = c-deps/cryptopp
+	url = https://github.com/cockroachdb/cryptopp.git
diff --git a/c-deps/cryptopp b/c-deps/cryptopp
new file mode 160000
index 000000000000..c621ce053298
--- /dev/null
+++ b/c-deps/cryptopp
@@ -0,0 +1 @@
+Subproject commit c621ce053298fafc1e59191079c33acd76045c26