vTPM testing

One can use a virtual TPM (vTPM) to run testing without affecting a physical device and risking to brick a system with an invalid manipulation of the TPM2 device.

Start the vTPM simulator

Get the simulator from git:

$ sudo apt install git snapcraft
$ git clone git@github.com:liuqun/tpm2-ibmswtpm.git
$ snapcraft
$ sudo snap install --dangerous tpm20softwaresimulator_*.snap

Then run tpm20softwaresimulator from the snap.

$ tpm20softwaresimulator
TPM command server listening on port 2321
Platform server listening on port 2322

Start a resource manager using the simulator

$ sudo apt install tpm2-abrmd
$ sudo tpm2-abrmd --allow-root --tcti=mssim --logger=stdout
[...]

And you'll see Client accepted in the output for the tpm2 simulator, or some similar message.

Run commands

$ tpm2_pcrlist 
sha1:
  0 : 0x0000000000000000000000000000000000000003
  1 : 0x0000000000000000000000000000000000000000
  2 : 0x0000000000000000000000000000000000000000
  3 : 0x0000000000000000000000000000000000000000
  4 : 0x0000000000000000000000000000000000000000
  5 : 0x0000000000000000000000000000000000000000
  6 : 0x0000000000000000000000000000000000000000
  7 : 0x0000000000000000000000000000000000000000
  8 : 0x0000000000000000000000000000000000000000
  9 : 0x0000000000000000000000000000000000000000
  10: 0x0000000000000000000000000000000000000000
  11: 0x0000000000000000000000000000000000000000
  12: 0x0000000000000000000000000000000000000000
  13: 0x0000000000000000000000000000000000000000
  14: 0x0000000000000000000000000000000000000000
  15: 0x0000000000000000000000000000000000000000
  16: 0x0000000000000000000000000000000000000000
  17: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  18: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  19: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  20: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  21: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  22: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  23: 0x0000000000000000000000000000000000000000
sha256:
  0 : 0x0000000000000000000000000000000000000000000000000000000000000003
  1 : 0x0000000000000000000000000000000000000000000000000000000000000000
  2 : 0x0000000000000000000000000000000000000000000000000000000000000000
  3 : 0x0000000000000000000000000000000000000000000000000000000000000000
  4 : 0x0000000000000000000000000000000000000000000000000000000000000000
  5 : 0x0000000000000000000000000000000000000000000000000000000000000000
  6 : 0x0000000000000000000000000000000000000000000000000000000000000000
  7 : 0x0000000000000000000000000000000000000000000000000000000000000000
  8 : 0x0000000000000000000000000000000000000000000000000000000000000000
  9 : 0x0000000000000000000000000000000000000000000000000000000000000000
  10: 0x0000000000000000000000000000000000000000000000000000000000000000
  11: 0x0000000000000000000000000000000000000000000000000000000000000000
  12: 0x0000000000000000000000000000000000000000000000000000000000000000
  13: 0x0000000000000000000000000000000000000000000000000000000000000000
  14: 0x0000000000000000000000000000000000000000000000000000000000000000
  15: 0x0000000000000000000000000000000000000000000000000000000000000000
  16: 0x0000000000000000000000000000000000000000000000000000000000000000
  17: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  18: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  19: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  20: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  21: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  22: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  23: 0x0000000000000000000000000000000000000000000000000000000000000000
sha384:
  0 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003
  1 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  2 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  3 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  4 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  5 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  6 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  7 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  8 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  9 : 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  10: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  11: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  12: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  13: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  14: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  15: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  16: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
  17: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  18: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  19: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  20: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  21: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  22: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
  23: 0x000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000