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STM32H5 locking password

Farhad13651
Associate II

‎2025-05-22 4:39 AM - last edited on ‎2025-05-22 4:42 AM by

Hi

We are developing a product that uses an STM32 microcontroller. In the microcontroller’s firmware, we have implemented a password that the user must enter at startup. If the user forgets the password, how will the program run? (Note: No software or hardware fallback has been implemented for this issue, and the source code is not accessible.)

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Peter BENSCH
ST Employee

‎2025-05-22 5:12 AM - edited ‎2025-05-22 5:12 AM

Well - the aim of passwords is to grant access only if the password is known.

A forgotten password is like a lost house key - you have to break the lock and install a new one. With the STM32H5, this is the same as completely erasing and reprogramming it. Anything else would not be good enough security, would it?

Regards
/Peter

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