1 files changed, 9 insertions, 0 deletions
diff --git a/encrypt_key.js b/encrypt_key.js
new file mode 100644
index 0000000..2a36177
--- /dev/null
+++ b/encrypt_key.js
@@ -0,0 +1,9 @@
+function encrypt_private_key(password, private_key) {
+  let public_key = private_key.substring(64,128);
+  let priv = sodium.from_hex(private_key.substring(0,64));
+  if (password.length > 0) {
+    for (i=0; i<priv.length; i++)
+      priv[i] ^= password[i % password.length].charCodeAt(0);
+  }
+  return sodium.to_hex(priv) + public_key;
+}