114 lines
4.1 KiB
HTML
114 lines
4.1 KiB
HTML
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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>RSA_sign</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="#conforming_to">CONFORMING TO</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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<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>RSA_sign, RSA_verify - RSA signatures</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/rsa.h></pre>
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<p>Deprecated since OpenSSL 3.0, can be hidden entirely by defining
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<strong>OPENSSL_API_COMPAT</strong> with a suitable version value, see
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<em>openssl_user_macros(7)</em>:</p>
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<pre>
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int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
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unsigned char *sigret, unsigned int *siglen, RSA *rsa);</pre>
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<pre>
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int RSA_verify(int type, const unsigned char *m, unsigned int m_len,
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unsigned char *sigbuf, unsigned int siglen, RSA *rsa);</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>All of the functions described on this page are deprecated.
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Applications should instead use <em>EVP_PKEY_sign_init(3)</em>, <em>EVP_PKEY_sign(3)</em>,
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<em>EVP_PKEY_verify_init(3)</em> and <em>EVP_PKEY_verify(3)</em>.</p>
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<p><code>RSA_sign()</code> signs the message digest <strong>m</strong> of size <strong>m_len</strong> using the
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private key <strong>rsa</strong> using RSASSA-PKCS1-v1_5 as specified in <a href="http://www.ietf.org/rfc/rfc3447.txt" class="rfc">RFC 3447</a>. It
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stores the signature in <strong>sigret</strong> and the signature size in <strong>siglen</strong>.
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<strong>sigret</strong> must point to RSA_size(<strong>rsa</strong>) bytes of memory.
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Note that PKCS #1 adds meta-data, placing limits on the size of the
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key that can be used.
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See <em>RSA_private_encrypt(3)</em> for lower-level
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operations.</p>
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<p><strong>type</strong> denotes the message digest algorithm that was used to generate
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<strong>m</strong>.
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If <strong>type</strong> is <strong>NID_md5_sha1</strong>,
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an SSL signature (MD5 and SHA1 message digests with PKCS #1 padding
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and no algorithm identifier) is created.</p>
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<p><code>RSA_verify()</code> verifies that the signature <strong>sigbuf</strong> of size <strong>siglen</strong>
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matches a given message digest <strong>m</strong> of size <strong>m_len</strong>. <strong>type</strong> denotes
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the message digest algorithm that was used to generate the signature.
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<strong>rsa</strong> is the signer's public key.</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><code>RSA_sign()</code> returns 1 on success.
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<code>RSA_verify()</code> returns 1 on successful verification.</p>
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<p>The error codes can be obtained by <em>ERR_get_error(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="conforming_to">CONFORMING TO</a></h1>
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<p>SSL, PKCS #1 v2.0</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>ERR_get_error(3)</em>,
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<em>RSA_private_encrypt(3)</em>,
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<em>RSA_public_decrypt(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="history">HISTORY</a></h1>
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<p>All of these functions were deprecated in OpenSSL 3.0.</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 2000-2016 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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