NAME

       tcti-cmd - TPM2 Sub-process Command TCTI library

SYNOPSIS

       A TPM Command Transmission Interface (TCTI) module for interaction with a sub-process.

DESCRIPTION

       tcti-cmd  is  a  library  that  abstracts  the  details  of  direct communication with the
       interface and protocol exposed by a sub-process that can receive  and  transmit  raw  TPM2
       command and response buffers. The interface exposed by this library is defined in the “TSS
       System Level API and TPM Command Transmission Interface Specification” specification.

EXAMPLES

       For example, if you wanted to use the tpm2_send(1) command as the sub-process to send data
       to and from the TPM, one could do so like this:
       tpm2_getrandom -T "cmd:tpm2_send -s" --hex 4

       A  more  useful  example would be connecting to a remote machine using ssh and interacting
       with the remote machine's TPM as if it were local. This  uses  tpm2_send(1)  on  a  remote
       machine  and  uses  ssh  as the sub-process to create the tunnel to the remote machine. If
       encrypted sessions are used, the remote machine is blinded to  the  TPM  data  and  cannot
       interpose on that traffic.
       tpm2_getrandom -T "cmd:ssh remotehost tpm2_send" -s --hex 4

AUTHOR

       TPM2 Software Project <https://github.com/tpm2-software/tpm2-tss>

SEE ALSO

       Tss2_Tcti_Device_Init(3),       Tss2_Tcti_Socket_Init(3),      Tss2_TctiLdr_Initialize(3),
       Tss2_TctiLdr_Finalize(3), tcti-device(7), tcti-socket(7), tcti-tabrmd(7), tpm2-abrmd(8)

COLOPHON

       This page is part of release 4.0.1 of Open Source implementation of the TCG TPM2  Software
       Stack  (TSS2).  A  description  of  the project, information about reporting bugs, and the
       latest version of this page can be found at https://github.com/tpm2-software/tpm2-tss/.