diff --git a/jni/openssl/crypto/bn/todo b/jni/openssl/crypto/bn/todo
new file mode 100644
index 0000000..e47e381
--- /dev/null
+++ b/jni/openssl/crypto/bn/todo
@@ -0,0 +1,3 @@
+Cache RECP_CTX values
+make the result argument independant of the inputs.
+split up the _exp_ functions