[BPO] Please backport tpm2-tss-engine 1.1.0-2 (universe) from jammy

[Luca Boccassi]

[Impact]

There is an upcoming Azure-related project that would like to support Ubuntu
20.04 LTS out of the box, and one of the requirements is the tpm2-tss-engine package.
The library is available in jammy, but not in focal.
It would be great if it could be uploaded to focal-backports, so that it can
be used out of the box.

[Scope]

Backport from 22.04 jammy to 20.04 focal-backports

[Other Info]
The only change needed to get a working build is to downgrade debhelper-compat from 13 to 12 in debian/control. Everything else works out of the box. Tested on a focal image:

root@focal:~# tpm2tss-genkey /tmp/key -t device:/dev/tpmrm0 -v
Engine name: TPM2-TSS engine for OpenSSL
Init result: 1
Generating the key
Generating RSA key using TPM
Key generated
Writing key to disk
*** SUCCESS ***

PPA build:

https://launchpad.net/~bluca/+archive/ubuntu/tpm2-tss-engine

[Jim Sievert (james-sievert)]

Having this functionality in Focal would be an asset to our organization too. We maintain a local compilation of a different OpenSSL TPM engine. Having _any_ OpenSSL TPM engine as part of Focal would eliminate the use of this local build and maintenance.