diff --git a/bin/blackbox_edit b/bin/blackbox_edit
new file mode 100755
index 0000000..9258e41
--- /dev/null
+++ b/bin/blackbox_edit
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+#
+# blackbox_edit.sh -- Decrypt a file temporarily for edition, then re-encrypts it again
+#
+
+. _blackbox_common.sh
+
+for param in """$@""" ; do
+  unencrypted_file=$(mktemp)
+  encrypted_file=$(get_encrypted_filename "$param")
+  echo ========== PLAINFILE "$unencrypted_file"
+
+  fail_if_not_on_cryptlist "$unencrypted_file"
+  fail_if_not_exists "$encrypted_file" "This should not happen."
+  if [[ ! -s "$unencrypted_file" ]]; then
+    rm -f "$unencrypted_file"
+  fi
+  if [[ -f "$unencrypted_file" ]]; then
+    echo SKIPPING: "$1" "Will not overwrite non-empty files."
+    continue
+  fi
+
+  prepare_keychain
+  decrypt_file "$encrypted_file" "$unencrypted_file"
+  $EDITOR $unencrypted_file
+
+  encrypt_file "$unencrypted_file" "$encrypted_file"
+  shred_file "$unencrypted_file"
+  
+  echo "========== UPDATED ${encrypted_file}"
+  echo "Likely next step:"
+  echo "    git commit -m\"${encrypted_file} updated\" $encrypted_file"
+done