STM32 MCUs Security

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Resolved! Using derived hardware key (DHUK) with AES on stm32u5

I've been trying to set up the AES peripheral so that it's only using the hardware derived key from the SAES peripheral (without setting any clear text key). However, the only method mentioned in the reference manual on using the DHUK is through the ...

jptuser44_0-1701456000989.png

Resolved! STM32U5 SAES/AES shared key in Trustzone with HAL

Hello,I'm trying to use the SAES/AES shared key functionality in a Trustzone (TZEN=1, RDP = 0), using the functions provided by the HAL library. The board I use is the B-U585I-IOT02A.The only project example I found is with Trustzone disabled, but it...

ptrchv by Associate II
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  • 2 replies
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AES ECB initialization fails

Hi,I'm trying to encrypt and decrypt in my device, running on a STM32H753, using AES ECB.I'm initializing crypto like this:  hcryp.Instance = CRYP; hcryp.Init.DataType = CRYP_DATATYPE_8B; hcryp.Init.KeySize = CRYP_KEYSIZE_256B; hcryp.Init...

TVare.1 by Associate III
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  • 5 replies
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Resolved! secure firmware update using USART

Hi everyone,I'm working in a Medical devices company and we use currently plenty of STM32s (F0,F1,F4, maybe soon H7). Until now, we didn't bother that much the cybersecurity topic for the firmwares but now the norms are forcing us :D.I checked a bit ...

TKopp.67 by Associate II
  • 2004 Views
  • 2 replies
  • 0 kudos