76 lines
3.0 KiB
HTML
Executable File
76 lines
3.0 KiB
HTML
Executable File
<?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>RAND_set_DRBG_type</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:" />
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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="#SYNOPSIS">SYNOPSIS</a></li>
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<li><a href="#DESCRIPTION">DESCRIPTION</a></li>
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<li><a href="#RETURN-VALUES">RETURN VALUES</a></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>RAND_set_DRBG_type, RAND_set_seed_source_type - specify the global random number generator types</p>
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<h1 id="SYNOPSIS">SYNOPSIS</h1>
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<pre><code> #include <openssl/rand.h>
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int RAND_set_DRBG_type(OSSL_LIB_CTX *ctx, const char *drbg, const char *propq,
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const char *cipher, const char *digest);
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int RAND_set_seed_source_type(OSSL_LIB_CTX *ctx, const char *seed,
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const char *propq);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>RAND_set_DRBG_type() specifies the random bit generator that will be used within the library context <i>ctx</i>. A generator of name <i>drbg</i> with properties <i>propq</i> will be fetched. It will be instantiated with either <i>cipher</i> or <i>digest</i> as its underlying cryptographic algorithm. This specifies the type that will be used for the primary, public and private random instances.</p>
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<p>RAND_set_seed_source_type() specifies the seed source that will be used within the library context <i>ctx</i>. The seed source of name <i>seed</i> with properties <i>propq</i> will be fetched and used to seed the primary random big generator.</p>
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<h1 id="RETURN-VALUES">RETURN VALUES</h1>
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<p>These function return 1 on success and 0 on failure.</p>
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<h1 id="NOTES">NOTES</h1>
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<p>These functions must be called before the random bit generators are first created in the library context. They will return an error if the call is made too late.</p>
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<p>The default DRBG is "CTR-DRBG" using the "AES-256-CTR" cipher.</p>
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<p>The default seed source is "SEED-SRC".</p>
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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="../man3/RAND_get0_primary.html">RAND_get0_primary(3)</a></p>
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<h1 id="HISTORY">HISTORY</h1>
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<p>These functions were added in OpenSSL 3.0.</p>
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<h1 id="COPYRIGHT">COPYRIGHT</h1>
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<p>Copyright 2021 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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