I'd try to use tpm (trusted platform module) built in my laptop on Debian 8. Most of tpm_* programs gives back answer:root@debian:~# tpm_takeownership Enter owner password: Confirm password: Enter SRK password: Confirm password: Tspi_TPM_TakeOwnership failed: 0x00000008 - layer=tpm, code=0008 (8), The TPM target command has been disabledtcsd gives back:root@debian:~# tcsd -fTCSD TDDL ERROR: Could not find a device to open!modules are loaded:root@debian:~# lsmod | grep tpmtpm_tis                17231  0 tpm                    31511  2 tpm_tisAnd finally, dmesg gives back:root@debian:~# dmesg | grep tpm[    6.743307] tpm_tis 00:05: 1.2 TPM (device-id 0x0, rev-id 78)TPM is turned on in BIOS. Any clue?
TPM (device-id 0x0, rev-id 78)
tpm