how to implement TDES DPA with stm32u5 in TFM

zqizh.1 · ‎2025-02-26

Hi ,

I can find AES DPA in TFM demo application, but can't find TDES DPA implementation in TFM.

Please advise how to implement TDES DPA.

Jocelyn RICARD · ‎2025-02-28

Hello @zqizh.1 ,

The AES DPA is based on a DPA resistant IP in STM32U5 SAES.

This IP does not support TDES for the reason mentioned by Peter.

Best regards

Jocelyn

View solution in original post

Peter BENSCH · ‎2025-02-27

Why would anyone invest time in implementing an encryption that is considered insecure and has long since been cracked?

Regards
/Peter

In order 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.

Jocelyn RICARD · ‎2025-02-28

Hello @zqizh.1 ,

The AES DPA is based on a DPA resistant IP in STM32U5 SAES.

This IP does not support TDES for the reason mentioned by Peter.

Best regards

Jocelyn