test: add test case for secure update with FE case

tools/test_apps/security/signed_app_no_secure_boot/pytest_signed_app_no_secure_boot.py

@@ -1,5 +1,6 @@
 # SPDX-FileCopyrightText: 2023-2025 Espressif Systems (Shanghai) CO LTD
 # SPDX-License-Identifier: Unlicense OR CC0-1.0
+
 import pytest
 from pytest_embedded import Dut
 from pytest_embedded_idf.utils import idf_parametrize
@@ -9,6 +10,14 @@ from pytest_embedded_idf.utils import idf_parametrize
 @idf_parametrize('target', ['esp32c2', 'esp32c3'], indirect=['target'])
 def test_examples_security_on_update_no_secure_boot(dut: Dut) -> None:
     dut.expect(
-        "This app is not signed, but check signature on update is enabled in config. It won't be possible to verify any update.",
+        "This app is not signed, but check signature on update is enabled in config. It won't be possible to verify any update.",  # noqa : E501
         timeout=10,
     )
+
+
+@pytest.mark.host_test
+@pytest.mark.qemu
+@pytest.mark.parametrize('config', ['secure_update_with_fe'], indirect=True)
+@idf_parametrize('target', ['esp32c3'], indirect=['target'])
+def test_examples_secure_update_with_fe_qemu(dut: Dut) -> None:
+    dut.expect('Example for secured signed with no secure boot', timeout=60)

tools/test_apps/security/signed_app_no_secure_boot/sdkconfig.ci.secure_update_with_fe

@@ -0,0 +1,4 @@
+CONFIG_SECURE_FLASH_ENC_ENABLED=y
+CONFIG_SECURE_BOOT_BUILD_SIGNED_BINARIES=y
+CONFIG_PARTITION_TABLE_OFFSET=0xc000
+CONFIG_NVS_ENCRYPTION=n

tools/test_apps/security/signed_app_no_secure_boot/secure_boot_signing_key.pem

@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----
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+6aAMN/0YR2Fw3+5Cz4Zsn+pe/N6/rqoCVMxS5vsgbmIAZ6537ENMwA==
+-----END RSA PRIVATE KEY-----