Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
I'm currently investigating SBSFU options for STM32 and it seems like the base package incorporates authentication of the firmware based on on digital signatures (ECDSA, edDSA etc.) but does not incorporate firmware encryption. I have an additional r...
Hello Dear Friends! I use STM32F439 MCU and it has AES encryption peripheral. I tried to encrypt data in the format of uint32_t and it encrypted data and I tested it successfully on online tools. However, I wanted to encrypt data in the format of cha...
I was looking over the example projects that come with CryptoLib v4.0 in the package en.STM32CubeExpansion_Crypto_v4.0.1 for examples related to X.509 certificate handling and was not able to find anything in that regard. I wanted to confirm whether ...
I couldn't find any clear explanation for the term loader on an5056 and um2262.Maybe it is so obvious for others but unfortunately not for me:\ So here is my questions regarding loader and appreciate you helping me understand it well.What is the load...
Hi, I want to port SBSFU to my project which was written for the STM32F756VGT microcontroller by Keil.So I have some questions regarding this situation.At first, I took the `STM32F769I-Discovery` example of SBSFU as a base project that I need to make...
What .c file has the code for the YMODEM portion of the SBSFU pictured below ?I have found the string "File> Transfer> YMODEM> Send" a few times, but when I changed the string to test if I found the correct area, nothing changes in the picture above....
Is there a way to support X09 certs for Secure Boot and Secure Firmware Authentication (SBSFU) features on STM32 MCU's? All the examples I've seen on this use bare public keys rather than certificates. Thanks!
Hi, I am implementing ECDSA signing functionality based on some sample code in the package en.STM32CubeExpansion_Crypto_v4.0.1. I am getting the following linker error. What am I missing? Thanks! c:\st\stm32cubeide_1.6.1\stm32cubeide\plugins\com.st.s...
I'm trying to add a authentication mechanism with a symmetric key stored in the system memory but I'm not sure if it's the right way and i also don't know how to store this key in the system memory.I read about SBSFU but not sure about it.Kindly advi...
If not, what is the TPC used for?
