tpm2_nvwrite man page

tpm2_nvwrite(1) — Write data to a Non-Volatile (NV) index.

Synopsis

tpm2_nvwrite [Options] FILE

Description

tpm2_nvwrite(1) - Write data specified via FILE to a Non-Volatile (NV) index. If FILE is not specified, it defaults to stdout.

Options

Common Options

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

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.

Tcti Options

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

Password Formatting

Passwords are interpreted in two forms, string and hex-string. A string password is not interpreted, and is directly used for authorization. A hex-string, is converted from a hexidecimal form into a byte array form, thus allowing passwords with non-printable and/or terminal un-friendly characters.

By default passwords are assumed to be in the string form. Password form is specified with special prefix values, they are:

Examples

To write the file nv.data to index 0x150016:

tpm2_nvwrite -x 0x1500016 -a 0x40000001 nv.data

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)

Info

SEPTEMBER 2017 tpm2-tools General Commands Manual