Description

The download script for the nRF BLE stack does not perform checksum verification of any of the downloads. Obviously the checksums would have to be updated every time we bump the stack versions needed, but this could add some extra safety against, for instance, botched downloads.

In addition, much of the bash code is duplicative, and could be refactored.

Code Size

As the sha256sum etc commands are part of coreutils, I do not see this adding any additional dependencies, plus the refactoring should result in less code size / maintenance costs.

Implementation

I intend to implement this feature and would submit a Pull Request if desirable

Code of Conduct

Yes, I agree