tpm

Environment

Board: APL UPSquared with PTT
OS: Ubuntu 20.04 (opensc 0.20.0-3)
tpm2-tss: 4.2.1 (tarball)
tpm2-pkcs11: 1.3.1 (tarball)
tpm2-tools: 4.1.3 (tarball)
tpm2-abrmd: Not installed
Token initialized with tpm2_ptool with label tpmhsm

Error message

id=`uuidgen | tr -d -`
pkcs11-tool --module /usr/lib/libtpm2_pkcs11.so --token-label tpmhsm --login --pin (redacted) --key-

This is a good first issue for someone who wants to get into OSS/TPM development.

We need a simple example to show TPM signature verification.

We already have examples for TPM2_Quote and TPM2_GetTime that can be used to generate signed TPM blob(data).

Details:

• Both TPM2_Quote and TPM2_GetTime produce similar output using TPM2B_ATTEST and TPMT_SIGNATURE structures.
• The TPMT_SIGNATU

The if statement always evaluates to true:

https://github.com/tpm2-software/tpm2-tss-engine/blob/8acc6181f27c1b60263ab9ad5e28f4638e0460ed/src/tpm2-tss-engine-common.c#L490