Request for a tool to update device tree locally.

This ( seems to be a wonderful tool, but I am not a python guy, and using it fails for me, complaining about missing packages :

nvidia@devkit-jp451:~/nv-tegra-sign$ ./ /boot/dtbfile /tmp/dtbfile.encrypt
Traceback (most recent call last):
  File "./", line 3, in <module>
    from cryptography.hazmat.backends.openssl import backend
ImportError: No module named cryptography.hazmat.backends.openssl

How do I install the missing dependencies ?


sudo apt install python-pip

installs the needed package(s)

hi, there is a version on С:

1 Like

Thank you, tested and approved ! It helps me work around the bug described at