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  <title>FIDO_DEV_ENABLE_ENTATTEST(3)</title>
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<body>
<table class="head">
  <tr>
    <td class="head-ltitle">FIDO_DEV_ENABLE_ENTATTEST(3)</td>
    <td class="head-vol">FreeBSD Library Functions Manual</td>
    <td class="head-rtitle">FIDO_DEV_ENABLE_ENTATTEST(3)</td>
  </tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<code class="Nm">fido_dev_enable_entattest</code>,
  <code class="Nm">fido_dev_toggle_always_uv</code>,
  <code class="Nm">fido_dev_force_pin_change</code>,
  <code class="Nm">fido_dev_set_pin_minlen</code>,
  <code class="Nm">fido_dev_set_pin_minlen_rpid</code> &#x2014;
<div class="Nd">CTAP 2.1 configuration authenticator API</div>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<code class="In">#include &lt;<a class="In">fido.h</a>&gt;</code>
<br/>
<code class="In">#include &lt;<a class="In">fido/config.h</a>&gt;</code>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">fido_dev_enable_entattest</code>(<var class="Fa" style="white-space: nowrap;">fido_dev_t
    *dev</var>, <var class="Fa" style="white-space: nowrap;">const char
    *pin</var>);</p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">fido_dev_toggle_always_uv</code>(<var class="Fa" style="white-space: nowrap;">fido_dev_t
    *dev</var>, <var class="Fa" style="white-space: nowrap;">const char
    *pin</var>);</p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">fido_dev_force_pin_change</code>(<var class="Fa" style="white-space: nowrap;">fido_dev_t
    *dev</var>, <var class="Fa" style="white-space: nowrap;">const char
    *pin</var>);</p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">fido_dev_set_pin_minlen</code>(<var class="Fa" style="white-space: nowrap;">fido_dev_t
    *dev</var>, <var class="Fa" style="white-space: nowrap;">size_t len</var>,
    <var class="Fa" style="white-space: nowrap;">const char *pin</var>);</p>
<p class="Pp"><var class="Ft">int</var>
  <br/>
  <code class="Fn">fido_dev_set_pin_minlen_rpid</code>(<var class="Fa" style="white-space: nowrap;">fido_dev_t
    *dev</var>, <var class="Fa" style="white-space: nowrap;">const char * const
    *rpid</var>, <var class="Fa" style="white-space: nowrap;">size_t n</var>,
    <var class="Fa" style="white-space: nowrap;">const char *pin</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
The functions described in this page allow configuration of a CTAP 2.1
  authenticator.
<p class="Pp">The <code class="Fn">fido_dev_enable_entattest</code>() function
    enables the <i class="Em">Enterprise Attestation</i> feature on
    <var class="Fa">dev</var>. <i class="Em">Enterprise Attestation</i>
    instructs the authenticator to include uniquely identifying information in
    subsequent attestation statements. The <var class="Fa">pin</var> parameter
    may be NULL if <var class="Fa">dev</var> does not have a PIN set.</p>
<p class="Pp">The <code class="Fn">fido_dev_toggle_always_uv</code>() function
    toggles the &#x201C;user verification always&#x201D; feature on
    <var class="Fa">dev</var>. When set, this toggle enforces user verification
    at the authenticator level for all known credentials. If
    <var class="Fa">dev</var> supports U2F (CTAP1) and the user verification
    methods supported by the authenticator do not allow protection of U2F
    credentials, the U2F subsystem will be disabled by the authenticator. The
    <var class="Fa">pin</var> parameter may be NULL if <var class="Fa">dev</var>
    does not have a PIN set.</p>
<p class="Pp">The <code class="Fn">fido_dev_force_pin_change</code>() function
    instructs <var class="Fa">dev</var> to require a PIN change. Subsequent PIN
    authentication attempts against <var class="Fa">dev</var> will fail until
    its PIN is changed.</p>
<p class="Pp">The <code class="Fn">fido_dev_set_pin_minlen</code>() function
    sets the minimum PIN length of <var class="Fa">dev</var> to
    <var class="Fa">len</var>. Minimum PIN lengths may only be increased.</p>
<p class="Pp">The <code class="Fn">fido_dev_set_pin_minlen_rpid</code>()
    function sets the list of relying party identifiers (RP IDs) that are
    allowed to obtain the minimum PIN length of <var class="Fa">dev</var>
    through the CTAP 2.1 <code class="Dv">FIDO_EXT_MINPINLEN</code> extension.
    The list of RP identifiers is denoted by <var class="Fa">rpid</var>, a
    vector of <var class="Fa">n</var> NUL-terminated UTF-8 strings. A copy of
    <var class="Fa">rpid</var> is made, and no reference to it or its contents
    is kept. The maximum value of <var class="Fa">n</var> supported by the
    authenticator can be obtained using
    <a class="Xr" href="fido_cbor_info_maxrpid_minpinlen.html">fido_cbor_info_maxrpid_minpinlen(3)</a>.</p>
<p class="Pp">Configuration settings are reflected in the payload returned by
    the authenticator in response to a
    <a class="Xr" href="fido_dev_get_cbor_info.html">fido_dev_get_cbor_info(3)</a>
    call.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
The error codes returned by <code class="Fn">fido_dev_enable_entattest</code>(),
  <code class="Fn">fido_dev_toggle_always_uv</code>(),
  <code class="Fn">fido_dev_force_pin_change</code>(),
  <code class="Fn">fido_dev_set_pin_minlen</code>(), and
  <code class="Fn">fido_dev_set_pin_minlen_rpid</code>() are defined in
  <code class="In">&lt;<a class="In">fido/err.h</a>&gt;</code>. On success,
  <code class="Dv">FIDO_OK</code> is returned.
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
  ALSO</a></h1>
<a class="Xr" href="fido_cbor_info_maxrpid_minpinlen.html">fido_cbor_info_maxrpid_minpinlen(3)</a>,
  <a class="Xr" href="fido_cred_pin_minlen.html">fido_cred_pin_minlen(3)</a>,
  <a class="Xr" href="fido_dev_get_cbor_info.html">fido_dev_get_cbor_info(3)</a>,
  <a class="Xr" href="fido_dev_reset.html">fido_dev_reset(3)</a>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">March 30, 2022</td>
    <td class="foot-os">Yubico&#x00A0;AB</td>
  </tr>
</table>
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