1 files changed, 68 insertions, 0 deletions
diff --git a/scripts/keygeneration/accessory/create_new_gsc_key.sh b/scripts/keygeneration/accessory/create_new_gsc_key.sh
new file mode 100755
index 00000000..674f8530
--- /dev/null
+++ b/scripts/keygeneration/accessory/create_new_gsc_key.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+
+# Copyright 2022 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Load common constants and functions.
+. "$(dirname "$0")/../common.sh"
+
+usage() {
+  cat <<EOF
+Usage: ${PROG} [options]
+
+Options:
+  -o, --output_dir <dir>:    Where to write the keys (default is cwd)
+EOF
+
+  if [[ $# -ne 0 ]]; then
+    die "$*"
+  else
+    exit 0
+  fi
+}
+
+generate_rsa3070_key() {
+  local output_dir="$1"
+  local base_name="gsc_3070"
+  local len="3070"
+
+  echo "creating ${base_name} key pair..."
+
+  # Make the RSA key pair.
+  openssl genrsa -F4 -out "${base_name}.pem" "${len}"
+  openssl rsa -in "${base_name}.pem" -outform PEM \
+    -pubout -out "${base_name}.pem.pub"
+}
+
+main() {
+  set -euo pipefail
+
+  local output_dir="${PWD}"
+
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+    -h|--help)
+      usage
+      ;;
+    -o|--output_dir)
+      output_dir="$2"
+      if [[ ! -d "${output_dir}" ]]; then
+        die "output dir (${output_dir}) doesn't exist."
+      fi
+      shift
+      ;;
+    -*)
+      usage "Unknown option: $1"
+      ;;
+    *)
+      usage "Unknown argument $1"
+      ;;
+    esac
+    shift
+  done
+
+  generate_rsa3070_key "${output_dir}"
+}
+
+main "$@"