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<div class="titlepage"><div><div><h1 class="title">
<a name="sharing"></a>Proxy Module</h1></div></div></div>
<p>When an application is aware of the fact that coordination
is necessary between multiple consumers of a PKCS#11 module, and wants
to load standard configured PKCS#11 modules, it can link to
<code class="literal">p11-kit</code> and use the functions there to provide this
functionality.</p>
<p>However most current consumers of PKCS#11 are ignorant of
this problem, and do not link to p11-kit. In order to solve this
multiple initialization problem for all applications,
<code class="literal">p11-kit</code> provides a proxy compatibility
module.</p>
<p>This proxy module acts like a normal PKCS#11 module, but
internally loads a preconfigured set of PKCS#11 modules and
manages their features as described earlier. Each slot in the configured modules
is exposed as a slot of the <code class="literal">p11-kit</code> proxy module. The proxy
module is then used as a normal PKCS#11 module would be. It can be loaded by
crypto libraries like NSS and behaves as expected.</p>
<p>The <code class="literal">C_GetFunctionList</code>,
<code class="literal">C_GetInterfaceList</code> and <code class="literal">C_GetInterface</code>
exported entry points of the proxy module returns a new managed PKCS#11 module
each time it is called. These managed instances are released when the proxy
module is unloaded.</p>
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