Hi All,
I have several questions. Thanks in advance for helping out.
1. I am trying to build a TF-M application for my platform with small profile with asymmetric signing module enabled. I tried using following command
cmake -S . -B build -G Ninja -DTFM_PLATFORM=MY/PLATFORM -DTFM_PROFILE="profile_small" -DCRYPTO_ASYM_SIGN_MODULE_ENABLED=y.
However, the asymmetric signing module is not included. More specifically, in trusted-firmware-m/secure_fw/partitions/crypto/crypto_asymmetric.c, the #if CRYPTO_ASYM_SIGN_MODULE_ENABLED is not true.
From what I understand, the -DCRYPTO_ASYM_SIGN_MODULE_ENABLED=y only define the macro, but not set it to 1, therefore, the #if CRYPTO_ASYM_SIGN_MODULE_ENABLED is not true. I am wondering if there is any way I can enable -DCRYPTO_ASYM_SIGN_MODULE_ENABLED module while still staying in small profile. I am aware that the default CRYPTO_ENGINE_BUF_SIZE might not be enough and I am willing to override it with a command line flag. Preferably, I would not want to enable asymmetric module in config.cmake as I only want to enable it for one specific application.
1. If to build with Zephyr and have TF-M as a module, is there anyway to enable asymmetric signing module given a small profile (I actually care more about this question than first question)
1. Just out of curiosity, how do you use menuconfig in TF-M. I did try -DMENUCONFIG=ON, but the compiler complains
CMake Error at config/kconfig.cmake:31 (file):
file STRINGS file
"trusted-firmware-m/config/../platform/ext/target/MY/PLATFORM/preload.cmake"
cannot be read.
Call Stack (most recent call first):
config/kconfig.cmake:174 (convert_normal_cmake_config_to_kconfig)
CMakeLists.txt:26 (include)
I thought preload.cmake is no longer required.
Thank you very much!
Best regards,
Hao
Hi,
I noticed this FIXME note in platform_sp.c. Is it still valid? If so, why does it only work with Isolation level 1? I thought system reset is typically an NVIC register write and platform SP should be able to do that.
enum tfm_platform_err_t platform_sp_system_reset(void)
{
/* FIXME: The system reset functionality is only supported in isolation
* level 1.
*/
tfm_platform_hal_system_reset();
return TFM_PLATFORM_ERR_SUCCESS;
}
Regards,
Brian Quach
SimpleLink MCU
Texas Instruments Inc.
Hi,
I'm doing a PoC on initial attestation for an university project using a
RP2350 board and I'm not really understanding why boot seed is stored in
OTP, shouldn't it be a value changing on each boot?
Pico SDK conveniently exposes one via a ROM function (rom_get_boot_random).
Another similar doubt I have is w.r.t. implementation id, couldn't it be
read from the board id (pico_get_unique_board_id)? Board id is factory
programmed in otp so it should actually be unique.
Best Regards,
Augusto Zanellato
Hi, is GCC 13.3 supported by the TFM build? Has anyone tried it? I see the documentation says v7.3.1+.
Regards,
Brian Quach
SimpleLink MCU
Texas Instruments Inc.
