TCTI-CMD(7)                   TPM2 Software Stack                  TCTI-CMD(7)

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/.

Intel                              MAY 2020                        TCTI-CMD(7)