STM32 MCUs Security

Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.

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SBSFU [SBOOT] System Security Check failed

Device: STM32L4S5Trying to run x-cube-aws v2.2.1I've successfully flashed the B-L4S5I-IOT01_STSAFE_Provisioning binary (output below)Start provisioning of STSAFE-A   Force STSAFE-A provisioning   Launching STSAFE-A pairing Check if Pairing Host keys...

DAzev.1 by Associate
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  • 1 replies
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Resolved! B-U585I-IOT02A definitely locked?

Hello STM32U5 community,I was making a few attemps with my B-U585I-IOT02A demo board and TF-M. I am afraid I have irreversibly locked the MCU.Here is what I did:run regression.shset RDP level 1 with the Programmer despite the warnings, because I forg...

ELuca.2 by Associate II
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  • 3 replies
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Issue with AES and CKS

In my application, I have a sequence which looks something like this:Load an AES key from CKS using SHCI_C2_FUS_LoadUsrKeyCall HAL_Cryp_Init, HAL_Cryp_Decrypt, and HAL_Cryp_DeInit to decrypt a block of dataUnload the key from CKS using SHCI_C2_FUS_Un...

crwper by Senior
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  • 6 replies
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RSA support for X509 utilities

Hi,I'm using some STM32 drivers code to parse X509 certificates. These drivers are based on ECC cryptography. I need to change to RSA. I need utilities such as parseCert()isValidCert()isParent()which exist for ECC, but I cannot find any equivalents f...

FOCal.1 by Associate
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  • 1 replies
  • 0 kudos