100 lines
3.6 KiB
HTML
100 lines
3.6 KiB
HTML
<?xml version="1.0" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<title>EVP_RAND-CRNG-TEST</title>
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<meta http-equiv="content-type" content="text/html; charset=utf-8" />
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<link rev="made" href="mailto:root@localhost" />
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</head>
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<body>
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<ul id="index">
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<li><a href="#NAME">NAME</a></li>
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<li><a href="#DESCRIPTION">DESCRIPTION</a>
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<ul>
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<li><a href="#Identity">Identity</a></li>
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<li><a href="#Supported-parameters">Supported parameters</a></li>
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</ul>
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</li>
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<li><a href="#NOTES">NOTES</a></li>
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<li><a href="#SEE-ALSO">SEE ALSO</a></li>
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<li><a href="#HISTORY">HISTORY</a></li>
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<li><a href="#COPYRIGHT">COPYRIGHT</a></li>
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</ul>
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<h1 id="NAME">NAME</h1>
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<p>EVP_RAND-CRNG-TEST - The FIPS health testing EVP_RAND filter</p>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>This <b>EVP_RAND</b> object acts as a filter between the entropy source and its users. It performs CRNG health tests as defined in <a href="https://csrc.nist.gov/pubs/sp/800/90/b/final">SP 800-90B</a> Section 4 "Health Tests". Most requests are forwarded to the entropy source, either via its parent reference or via the provider entropy upcalls.</p>
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<h2 id="Identity">Identity</h2>
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<p>"CRNG-TEST" is the name for this implementation; it can be used with the EVP_RAND_fetch() function.</p>
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<h2 id="Supported-parameters">Supported parameters</h2>
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<p>If a parent EVP_RAND is specified on context creation, the parent's parameters are supported because the request is forwarded to the parent seed source for processing.</p>
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<p>If no parent EVP_RAND is specified on context creation, the following parameters are supported:</p>
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<dl>
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<dt id="state-OSSL_RAND_PARAM_STATE-integer">"state" (<b>OSSL_RAND_PARAM_STATE</b>) <integer></dt>
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<dd>
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</dd>
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<dt id="strength-OSSL_RAND_PARAM_STRENGTH-unsigned-integer">"strength" (<b>OSSL_RAND_PARAM_STRENGTH</b>) <unsigned integer></dt>
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<dd>
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</dd>
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<dt id="max_request-OSSL_RAND_PARAM_MAX_REQUEST-unsigned-integer">"max_request" (<b>OSSL_RAND_PARAM_MAX_REQUEST</b>) <unsigned integer></dt>
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<dd>
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<p>These parameters work as described in <a href="../man3/EVP_RAND.html">"PARAMETERS" in EVP_RAND(3)</a>.</p>
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</dd>
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<dt id="fips-indicator-OSSL_DRBG_PARAM_FIPS_APPROVED_INDICATOR-integer">"fips-indicator" (<b>OSSL_DRBG_PARAM_FIPS_APPROVED_INDICATOR</b>) <integer></dt>
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<dd>
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<p>This parameter works as described in <a href="../man7/provider-rand.html">"PARAMETERS" in provider-rand(7)</a>.</p>
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</dd>
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</dl>
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<h1 id="NOTES">NOTES</h1>
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<p>This EVP_RAND is only implemented by the OpenSSL FIPS provider.</p>
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<p>A context for a health test filter can be obtained by calling:</p>
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<pre><code> EVP_RAND *parent = ...;
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EVP_RAND *rand = EVP_RAND_fetch(NULL, "CRNG-TEST", NULL);
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EVP_RAND_CTX *rctx = EVP_RAND_CTX_new(rand, parent);</code></pre>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
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<p><a href="../man3/EVP_RAND.html">EVP_RAND(3)</a>, <a href="../man7/OSSL_PROVIDER-FIPS.html">OSSL_PROVIDER-FIPS(7)</a></p>
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<h1 id="HISTORY">HISTORY</h1>
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<p>This functionality was added in OpenSSL 3.4.</p>
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<h1 id="COPYRIGHT">COPYRIGHT</h1>
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<p>Copyright 2024 The OpenSSL Project Authors. All Rights Reserved.</p>
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<p>Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <a href="https://www.openssl.org/source/license.html">https://www.openssl.org/source/license.html</a>.</p>
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</body>
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</html>
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