NVME-CHECK-DHCHAP() NVME-CHECK-DHCHAP()

# [NAME](#NAME)

nvme-check-dhchap-key - Check a host DH-HMAC-CHAP secret (deprecated)

# [SYNOPSIS](#SYNOPSIS)

```
nvme [<global-options>] check-dhchap-key [--key=<secret> | -k <secret>]
```

# [DESCRIPTION](#DESCRIPTION)

Deprecated alias for [**nvme-keys-check-kxchap-secret**(1)](/man/os/nvme-cli/nvme-keys-check-kxchap-secret.1), kept for scripts written against nvme-cli versions older than 3.0. It takes the one option nvme-cli 2.x took, *--key*/*-k*, and passes the secret to that command. Exit codes match 2.x, but *Key is valid*, *Key is loaded* and *Key is not loaded* are now *Secret is ...*, and the validation errors say secret where they said key, so a script matching the old wording needs updating.

*--keydata*, *--keyring*, *--keytype* and *--identity* are reachable only under *nvme keys check-kxchap-secret*. With no *--key* the secret is read from stdin, where 2.x reported *Key not specified*.

New scripts should use *nvme keys check-kxchap-secret* instead. This alias prints a deprecation warning on stderr and may be removed in a future release.

See [**nvme-keys-check-kxchap-secret**(1)](/man/os/nvme-cli/nvme-keys-check-kxchap-secret.1) for the full option reference.

# [GLOBAL OPTIONS](#GLOBAL_OPTIONS)

The following options are defined at the top-level nvme command and are available to this subcommand:

--dry-run

Print the command that would be executed, but do not actually execute it.

--no-ioctl-probing

Disable probing for 64-bit IOCTL support.

--no-retries

Disable retry logic on transient errors.

-o &lt;fmt&gt;, --output-format=&lt;fmt&gt;

Set the reporting format to *normal*, *tabular, 'json*, or *binary*. Only one output format may be used at a time.

--output-format-version=&lt;version&gt;

Select the output format version. Version *1* uses the original field naming, while version *2* (default) provides more consistent and script-friendly field names.

--timeout=&lt;ms&gt;

Set the timeout for the command in milliseconds.

-v, --verbose

Increase the level of detail in the output. May be specified multiple times to further increase verbosity.

These options can also be set as machine-wide defaults in [nvme-cli.conf(5)](/man/os/nvme-cli/nvme-cli.conf.5). A command-line flag always overrides the file.

# [EXAMPLES](#EXAMPLES)

No Examples

# [NVME](#NVME)

Part of the nvme-user suite

# [SEE ALSO](#SEE_ALSO)

[**nvme-keys-check-kxchap-secret**(1)](/man/os/nvme-cli/nvme-keys-check-kxchap-secret.1)

---

Document: nvme-check-dhchap-key(1) from nvme-cli 3.1-r1 (Chainguard OS)
Source: https://github.com/linux-nvme/nvme-cli