libtspi-dev 0.3.14+fixed1-1build1 (amd64 binary) in ubuntu focal

 TrouSerS is an implementation of the Trusted Computing Group's Software Stack
 (TSS) specification. You can use TrouSerS to write applications that make use
 of your TPM hardware. TPM hardware can create, store and use RSA keys securely
 (without ever being exposed in memory), verify a platform's software state
 using cryptographic hashes and more.
 .
 This package contains the development files.