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Associate III
February 4, 2026
Solved

message encryption on STM32F407VE

  • February 4, 2026
  • 2 replies
  • 213 views

Hello, everyone.

Can the STM32F407VE encrypt multi-byte messages to maintain the confidentiality of messages between the host and client (stm32)? If so, what type of encryption can be run on this processor?

Thank you:)

Best answer by mƎALLEm

Hello,

STM32F407 doesn't have a hardware crypto accelerator. STM32F417 does.

X-CUBE-CRYPTOLIB could be used for devices without hardware crypto accelerator.

I'm not crypto expert but google says: you can use AES (Advanced Encryption Standard) for bulk data encryption combined with RSA or Elliptic Curve Cryptography (ECC) for secure key exchange.

2 replies

mƎALLEm
mƎALLEmBest answer
Technical Moderator
February 4, 2026

Hello,

STM32F407 doesn't have a hardware crypto accelerator. STM32F417 does.

X-CUBE-CRYPTOLIB could be used for devices without hardware crypto accelerator.

I'm not crypto expert but google says: you can use AES (Advanced Encryption Standard) for bulk data encryption combined with RSA or Elliptic Curve Cryptography (ECC) for secure key exchange.

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No_NameAuthor
Associate III
February 5, 2026

Okay, I'll try it.

Associate II
February 5, 2026

In fact you can use any encryption on F407 as well. It is just not acclerated then.

If you transfer not too much data you need no accleration for this and implement all in plain software.