message encryption on STM32F407VE

No_Name · ‎2026-02-04

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:)

mƎALLEm · ‎2026-02-04

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.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

View solution in original post

mƎALLEm · ‎2026-02-04

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.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

No_Name · ‎2026-02-04

Okay, I'll try it.

mfgkw · ‎2026-02-04

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.