Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.
Hello,I’m working on STM32H7 firmware using the STM32 Cryptographic Library (CryptoLib) for firmware decryption.I have the following scenario:Firmware is encrypted with AES128-GCM.Integrity and authenticity are verified separately using ECDSA + SHA-2...
To secure USB against unauthorized usage while maintaining regular operation, implement authentication and encryption for all USB communication, ensuring only authorized devices or users can access the interface for parameter and log management, open...
Hi All, Does anyone know how to enable the MCO2(PC9) output after secure manager enabled? its work in project without secure manager and it could be enabled in systemClock config function as below: ,but it's not work any more after secure manager o...
Hi,I am trying to send encrypted data between a C# application and STM32 in AES GCM mode.Currently, I am only doing encryption of a known test vector.Key and IV are both all zeros.AAD length is 0.My testvector is: 00 00 00 00 00 01 00 00 00 00 00 00 ...
Dear,For a given HDPL, how many 256-bit AHKs (Application Hardware Keys) can be stored in the option byte keys?And how many of those are:only usable by SAES?usable by software?The reference manual states the following:5.2 FLASH main features:"Up to 1...
How can the debug interface on the STM32H573 be permanently locked via nonvolatile configuration or fuse?The SBS chapter of the manual saysThe debug configuration can be locked thanks to DBGCFG_LOCK in SBS_DBGLOCKR.SBS_DBGCR is then no longer writabl...
Hello,We are working on an STM32F469/79-based device that uses SBSFU, which we are seeking to modify to use the STSAFE-A120 to perform the authentication and decryption algorithms.Section 2.7 of the STSAFE-A120 datasheet includes that the STSAFE-A120...
If, like me, you are attempting to use this device and believe there are gaps in the information available, you are correct. However, the information you seek, plus additional advice and assistance is available from ST, you simply have to ask via a t...
What is the meaning of the FLASH_OBKCR.NEXTKL field while executing within HDPL_0 (e.g., during execution of ST RSS)?This question might seem irrelevant to me as I'm a user and user code will never execute within HDPL_0, but it might be important fro...
Post edited by ST moderator to be inline with the community rules especially with the code sharing. In next time please use </> button to paste your code. Please read this post: How to insert source code Hello, I need to calculate SHA-256 on STM32L56...
