77 lines
3.7 KiB
HTML
77 lines
3.7 KiB
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<?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>b2i_PVK_bio_ex</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="#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>b2i_PVK_bio, b2i_PVK_bio_ex, i2b_PVK_bio, i2b_PVK_bio_ex - Decode and encode functions for reading and writing MSBLOB format private keys</p>
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<h1 id="SYNOPSIS">SYNOPSIS</h1>
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<pre><code> #include <openssl/pem.h>
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EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
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EVP_PKEY *b2i_PVK_bio_ex(BIO *in, pem_password_cb *cb, void *u,
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OSSL_LIB_CTX *libctx, const char *propq);
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int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel,
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pem_password_cb *cb, void *u);
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int i2b_PVK_bio_ex(BIO *out, const EVP_PKEY *pk, int enclevel,
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pem_password_cb *cb, void *u,
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OSSL_LIB_CTX *libctx, const char *propq);</code></pre>
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<h1 id="DESCRIPTION">DESCRIPTION</h1>
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<p>b2i_PVK_bio_ex() decodes a private key of MSBLOB format read from a <b>BIO</b>. It attempts to automatically determine the key type. If the key is encrypted then <i>cb</i> is called with the user data <i>u</i> in order to obtain a password to decrypt the key. The supplied library context <i>libctx</i> and property query string <i>propq</i> are used in any decrypt operation.</p>
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<p>b2i_PVK_bio() does the same as b2i_PVK_bio_ex() except that the default library context and property query string are used.</p>
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<p>i2b_PVK_bio_ex() encodes <i>pk</i> using MSBLOB format. If <i>enclevel</i> is 1 then a password obtained via <i>pem_password_cb</i> is used to encrypt the private key. If <i>enclevel</i> is 0 then no encryption is applied. The user data in <i>u</i> is passed to the password callback. The supplied library context <i>libctx</i> and property query string <i>propq</i> are used in any decrypt operation.</p>
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<p>i2b_PVK_bio() does the same as i2b_PVK_bio_ex() except that the default library context and property query string are used.</p>
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<h1 id="RETURN-VALUES">RETURN VALUES</h1>
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<p>The b2i_PVK_bio() and b2i_PVK_bio_ex() functions return a valid <b>EVP_KEY</b> structure or <b>NULL</b> if an error occurs. The error code can be obtained by calling <a href="../man3/ERR_get_error.html">ERR_get_error(3)</a>.</p>
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<p>i2b_PVK_bio() and i2b_PVK_bio_ex() return the number of bytes successfully encoded or a negative value if an error occurs. The error code can be obtained by calling <a href="../man3/ERR_get_error.html">ERR_get_error(3)</a>.</p>
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<h1 id="SEE-ALSO">SEE ALSO</h1>
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<p><a href="../man7/crypto.html">crypto(7)</a>, <a href="../man3/d2i_PKCS8PrivateKey_bio.html">d2i_PKCS8PrivateKey_bio(3)</a></p>
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<h1 id="HISTORY">HISTORY</h1>
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<p>b2i_PVK_bio_ex() and i2b_PVK_bio_ex() 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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