Provided by: tpm2-tools_3.1.3-2_amd64 bug

NAME

       tpm2_createpolicy(1)  -  Creates simple assertion authorization policies based on multiple
       pcr indices values across multiple enabled banks.

SYNOPSIS

       tpm2_createpolicy [OPTIONS]

DESCRIPTION

       tpm2_createpolicy(1) - Creates simple assertion authorization policies based  on  multiple
       pcr  indices  values  across  multiple  enabled  banks.   It  can then be used with object
       creation and or tools using the object.

OPTIONS

       These options control creating the policy authorization session:

       · -f, –policy-file=POLICY_FILE: File to save the policy digest.

       · -P, –policy-pcr: Identifies the PCR policy type for policy creation.

       · -g, –policy-digest-alg=HASH_ALGORITHM: The hash algorithm used  in  computation  of  the
         policy    digest.    Algorithms   should   follow   the   “formatting   standards,   see
         section”Algorithm Specifiers“. Also, see section”Supported Hash Algorithms" for  a  list
         of supported hash algorithms.

       · -L,  –set-list=PCR_LIST:  The  list  of pcr banks and selected PCRs' ids (0~23) for each
         bank.

       · -F, –pcr-input-file=PCR_FILE: Optional Path or Name of the file containing expected  pcr
         values for the specified index.  Default is to read the current PCRs per the set list.

       · -e, –extend-policy-session: Retains the policy session at the end of operation.

       · -a, –auth-policy-session: Start a policy session of type TPM_SE_POLICY.  Default without
         this option is TPM_SE_TRIAL.

COMMON OPTIONS

       This collection of options are common to many programs and provide information  that  many
       users may expect.

       · -h,  –help: Display the tools manpage.  This requires the manpages to be installed or on
         MANPATH, See man(1) for more details.

       · -v, –version: Display version information for this tool, supported tctis and exit.

       · -V, –verbose: Increase the information that the tool prints to the  console  during  its
         execution.  When using this option the file and line number are printed.

       · -Q, –quiet: Silence normal tool output to stdout.

       · -Z,  –enable-errata: Enable the application of errata fixups.  Useful if an errata fixup
         needs to be applied to commands sent to the TPM.  # TCTI ENVIRONMENT

       This collection of environment variables that may be used to configure  the  various  TCTI
       modules available.

       The  values  passed through these variables can be overridden on a per-command basis using
       the available command line options, see the TCTI_OPTIONS section.

       The variables respected depend on how the software was configured.

       · TPM2TOOLS_TCTI_NAME: Select the TCTI used for communication with the next component down
         the  TSS stack.  In most configurations this will be the TPM but it could be a simulator
         or proxy.  The current known TCTIs are:

         · tabrmd      -      The      new      resource       manager,       called       tabrmd
           (https://github.com/01org/tpm2-abrmd).

         · socket  -  Typically  used  with  the  old  resource manager, or talking directly to a
           simulator.

         · device - Used when talking directly to a TPM device file.

       · TPM2TOOLS_DEVICE_FILE: When using the device TCTI, specify the  TPM  device  file.   The
         default is “/dev/tpm0”.

         Note:  Using  the  tpm directly requires the users to ensure that concurrent access does
         not occur and that they manage the tpm resources.  These tasks are usually managed by  a
         resource  manager.   Linux  4.12  and  greater supports an in kernel resource manager at
         “/dev/tpmrm”, typically “/dev/tpmrm0”.

       · TPM2TOOLS_SOCKET_ADDRESS: When using the socket TCTI, specify  the  domain  name  or  IP
         address used.  The default is 127.0.0.1.

       · TPM2TOOLS_SOCKET_PORT:  When  using  the socket TCTI, specify the port number used.  The
         default is 2321.

TCTI OPTIONS

       This collection of options are used to configure the varous TCTI modules available.   They
       override any environment variables.

       · -T, –tcti=TCTI_NAME[:TCTI_OPTIONS]: Select the TCTI used for communication with the next
         component down the TSS stack.  In most configurations this will be the resource manager:
         tabrmd  (https://github.com/01org/tpm2-abrmd)  Optionally,  tcti  specific  options  can
         appended to TCTI_NAME by appending a : to TCTI_NAME.

         · For the device TCTI, the TPM device file for use by the device TCTI can be  specified.
           The default is /dev/tpm0.  Example: -T device:/dev/tpm0

         · For  the socket TCTI, the domain name or IP address and port number used by the socket
           can  be   specified.    The   default   are   127.0.0.1   and   2321.    Example:   -T
           socket:127.0.0.1:2321

         · For the abrmd TCTI, it takes no options.  Example: -T abrmd

Supported Hash Algorithms

       Supported hash algorithms are:

       · 0x4 or sha1 for TPM_ALG_SHA1 (default)

       · 0xB or sha256 for TPM_ALG_SHA256

       · 0xC or sha384 for TPM_ALG_SHA384

       · 0xD or sha512 for TPM_ALG_SHA512

       · 0x12 or sm3_256 for TPM_ALG_SM3_256

       NOTE: Your TPM may not support all algorithms.

Algorithm Specfiers

       Options  that  take algorithms support “nice-names”.  Nice names, like sha1 can be used in
       place of the raw hex for sha1: 0x4.  The nice names are converted by stripping the leading
       TPM_ALG_  from  the  Algorithm  Name  field and converting it to lower case.  For instance
       TPM_ALG_SHA3_256 becomes sha3_256.

       The    algorithms    can    be    found     at:     <https://trustedcomputinggroup.org/wp-
       content/uploads/TCG_Algorithm_Registry_Rev_1.24.pdf>

EXAMPLES

       Create a authorization policy tied to a specific PCR index:

       tpm2_createpolicy -P -L 0x4:0 -f policy.file -F pcr0.bin

RETURNS

       0 on success or 1 on failure.

BUGS

       Github Issues (https://github.com/01org/tpm2-tools/issues)

HELP

       See the Mailing List (https://lists.01.org/mailman/listinfo/tpm2)