111 lines
4.2 KiB
HTML
Executable File
111 lines
4.2 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>EVP_PKEY_asn1_get_count</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 style="background-color: white">
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<!-- INDEX BEGIN -->
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<div name="index">
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<p><a name="__index__"></a></p>
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<ul>
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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="#see_also">SEE ALSO</a></li>
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<li><a href="#copyright">COPYRIGHT</a></li>
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</ul>
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<hr name="index" />
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</div>
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<!-- INDEX END -->
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<p>
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</p>
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<hr />
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<h1><a name="name">NAME</a></h1>
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<p>EVP_PKEY_asn1_find,
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EVP_PKEY_asn1_find_str,
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EVP_PKEY_asn1_get_count,
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EVP_PKEY_asn1_get0,
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EVP_PKEY_asn1_get0_info
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- enumerate public key ASN.1 methods</p>
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<p>
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</p>
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<hr />
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<h1><a name="synopsis">SYNOPSIS</a></h1>
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<pre>
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#include <openssl/evp.h></pre>
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<pre>
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int EVP_PKEY_asn1_get_count(void);
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const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
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const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type);
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const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
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const char *str, int len);
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int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id,
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int *ppkey_flags, const char **pinfo,
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const char **ppem_str,
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const EVP_PKEY_ASN1_METHOD *ameth);</pre>
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<p>
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</p>
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<hr />
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<h1><a name="description">DESCRIPTION</a></h1>
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<p>EVP_PKEY_asn1_count() returns a count of the number of public key
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ASN.1 methods available: it includes standard methods and any methods
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added by the application.</p>
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<p>EVP_PKEY_asn1_get0() returns the public key ASN.1 method <strong>idx</strong>.
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The value of <strong>idx</strong> must be between zero and EVP_PKEY_asn1_get_count()
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- 1.</p>
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<p>EVP_PKEY_asn1_find() looks up the <strong>EVP_PKEY_ASN1_METHOD</strong> with NID
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<strong>type</strong>.
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If <strong>pe</strong> isn't <strong>NULL</strong>, then it will look up an engine implementing a
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<strong>EVP_PKEY_ASN1_METHOD</strong> for the NID <strong>type</strong> and return that instead,
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and also set <strong>*pe</strong> to point at the engine that implements it.</p>
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<p>EVP_PKEY_asn1_find_str() looks up the <strong>EVP_PKEY_ASN1_METHOD</strong> with PEM
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type string <strong>str</strong>.
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Just like EVP_PKEY_asn1_find(), if <strong>pe</strong> isn't <strong>NULL</strong>, then it will
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look up an engine implementing a <strong>EVP_PKEY_ASN1_METHOD</strong> for the NID
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<strong>type</strong> and return that instead, and also set <strong>*pe</strong> to point at the
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engine that implements it.</p>
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<p>EVP_PKEY_asn1_get0_info() returns the public key ID, base public key
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ID (both NIDs), any flags, the method description and PEM type string
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associated with the public key ASN.1 method <strong>*ameth</strong>.</p>
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<p>EVP_PKEY_asn1_count(), EVP_PKEY_asn1_get0(), EVP_PKEY_asn1_find() and
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EVP_PKEY_asn1_find_str() are not thread safe, but as long as all
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<strong>EVP_PKEY_ASN1_METHOD</strong> objects are added before the application gets
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threaded, using them is safe. See <em>EVP_PKEY_asn1_add0(3)</em>.</p>
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<p>
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</p>
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<hr />
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<h1><a name="return_values">RETURN VALUES</a></h1>
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<p>EVP_PKEY_asn1_count() returns the number of available public key methods.</p>
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<p>EVP_PKEY_asn1_get0() return a public key method or <strong>NULL</strong> if <strong>idx</strong> is
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out of range.</p>
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<p>EVP_PKEY_asn1_get0_info() returns 0 on failure, 1 on success.</p>
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<p>
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</p>
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<hr />
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<h1><a name="see_also">SEE ALSO</a></h1>
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<p><em>EVP_PKEY_asn1_new(3)</em>, <em>EVP_PKEY_asn1_add0(3)</em></p>
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<p>
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</p>
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<hr />
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<h1><a name="copyright">COPYRIGHT</a></h1>
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<p>Copyright 2017 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
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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<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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