NAME

       tpm2_nvread - read content from NV index, if any passwd option is missing, assume NULL.

SYNOPSIS

       tpm2_nvread[       COMMON       OPTIONS      ]      [      TCTI      OPTIONS      ]      [
       --index|--authHandle|--handlePasswd|--size|--offset|--passwdInHex| ]

       read content from NV index, if any passwd option is missing, assume NULL.

DESCRIPTION

       tpm2_nvread read content from NV index, if any passwd option is missing, assume NULL.

OPTIONS

       -x ,--index
              specifies the index of the NV area.

       -a ,--authHandle
              specifies the handle used to  authorize:   0x40000001  (TPM_RH_OWNER)    0x4000000C
              (TPM_RH_PLATFORM)   {NV_INDEX_FIRST:NV_INDEX_LAST}

       -P ,--handlePasswd
              specifies the password of authHandle.

       -s ,--size
              specifies the number of octets to read.

       -o ,--offset
              specifies octet offset into the area  This value shall be less than or equal to the
              size of the nvIndex data.

       -X ,--passwdInHex
              passwords given by any options are hex format

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

       -h, --help
              Display a manual describing the tool and its usage.

       -v, --version
              Display version information for this tool.

       -V, --verbose
              Increase the information that the tool prints to the console during its execution.

       [TCTI OPTIONS ]
              This collection of options are used to configure the varous TCTI modules available.

       -T, --tcti
              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.
              Supported TCTIs are or “device” or “socket” .

       -d, --device-file
              Specify the TPM device file for use by the device TCTI. The default is /dev/tpm0.

       -R, --socket-address
              Specify  the  domain  name  or  IP  address used by the socket TCTI. The default is
              127.0.0.1.

       -p, --socket-port
              Specify the port number used by the socket TCTI. The default is 2321.

       ENVIRONMENT: TCTI
              This collection of environment variables that may be used to configure  the  varous
              TCTI  modules  available.   The  values  passed  through  these  variables  can  be
              overridden on a per-command basis using the available command line options.

       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.
              See 'OPTIONS' section for the names of supported TCTIs.

       TPM2TOOLS_DEVICE_FILE
              Specify the TPM device file for use by the device TCTI.

       TPM2TOOLS_SOCKET_ADDRESS
              Specify the domain name or IP address used by the socket TCTI.

       TPM2TOOLS_SOCKET_PORT
              Specify the port number used by the socket TCTI.

EXAMPLES

       tpm2_nvread

              tpm2_nvread -x 0x1500016 -a 0x40000001 -P passwd -s 32 -o 0
              tpm2_nvread -x 0x1500016 -a 0x40000001 -P 1a1b1c -s 32 -o 0 -X