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tpm2_nvreadlock - lock the NV index for further reads until the machine

tpm2_nvreadlock(8) tpm2.0-tools tpm2_nvreadlock(8)

NAME

tpm2_nvreadlock - lock the NV index for further reads until the machine is restarted

SYNOPSIS

tpm2_nvreadlock[ COMMON OPTIONS ] [ TCTI OPTIONS ] [ --index|--authHandle| --handlePasswd|--passwdInHex| ]
lock the NV index for further reads until the machine is restarted

DESCRIPTION

tpm2_nvreadlock lock the NV index for further reads until the machine is restarted

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.
-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_nvreadlock
tpm2_nvreadlock -x 0x1500016 -a 0x40000001 -P passwd
tpm2_nvreadlock -x 0x1500016 -a 0x40000001 -P 1a1b1c -X

DECEMBER 2016 Intel