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LetsTrust

This site collect usefull scripts, links and TPM2 related stuff. Most relatet to the LetsTrust-TPM module for the Raspberry Pi. The latset update of the script installs also the tcti device for the LetsTrust-TPM2Go

News

1.1 LetsTrust-TPM With Raspbian Stretch Kernel >= 4.14.85 you'll get the TPM 2.0 support build in!

Six easy steps to activate your TPM on the Rapsberry Pi:

  • Step one:
    • Open a (whatever) term on your Pi.
  • Step two:
    • run a "sudo apt update && upgrade"
  • Step three:
    • open the /boot/config.txt with "sudo nano /boot/config.txt"
    • activate SPI with
      • "dtparam=spi=on"
    • and load the TPM device tree overlay with
      • "dtoverlay=tpm-slb9670"
  • Step four:
    • plug your LetsTrust-TPM on the right position and reboot your Raspberry Pi
  • Step fife:
    • Open a (whatever) term on your Pi and type "ls /dev/tpm" and
  • /dev/tpm0 and /dev/tpmrm0 will appear in yellow letters!
  • Step six:
    • Be happy about your success!

1.2 LetsTrust-TPM2Go

The tpm2_all.sh will also install everything for the LetsTrust-TPM2Go. Futher informations could be found here: https://github.com/PaulKissinger/LetsTrust-TPM2Go

Scripts

  • tpm2_all.sh

    • Installs the dependencies for tpm2-software [1]
    • Installs tpm2-tss (Tag: 4.1.3)
    • Installs tpm2-abrmd (Tag: 3.0.0)
    • Installs tpm2-tools (Tag: 5.7)

  • How to patch a kernel (folder)

    • Inlcude some scripts to patch your kernel, example for Raspbian

  • TPM_reset_with_GPIO.sh

    • Reset the LetsTrust-TPM with a pintoggle, only for development!

    [1] https://github.com/tpm2-software