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<?xml version="1.0" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DSA_SIG_new</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <link rev="made" href="mailto:root@hsxx.drive.ne.jp" /> </head> <body style="background-color: white"> <!-- INDEX BEGIN --> <div name="index"> <p><a name="__index__"></a></p> <ul> <li><a href="#name">NAME</a></li> <li><a href="#synopsis">SYNOPSIS</a></li> <li><a href="#description">DESCRIPTION</a></li> <li><a href="#return_values">RETURN VALUES</a></li> <li><a href="#see_also">SEE ALSO</a></li> <li><a href="#copyright">COPYRIGHT</a></li> </ul> <hr name="index" /> </div> <!-- INDEX END --> <p> </p> <hr /> <h1><a name="name">NAME</a></h1> <p>DSA_SIG_get0, DSA_SIG_set0, DSA_SIG_new, DSA_SIG_free - allocate and free DSA signature objects</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/dsa.h></pre> <pre> DSA_SIG *DSA_SIG_new(void); void DSA_SIG_free(DSA_SIG *a); void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps); int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s);</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p><code>DSA_SIG_new()</code> allocates an empty <strong>DSA_SIG</strong> structure.</p> <p><code>DSA_SIG_free()</code> frees the <strong>DSA_SIG</strong> structure and its components. The values are erased before the memory is returned to the system.</p> <p>DSA_SIG_get0() returns internal pointers to the <strong>r</strong> and <strong>s</strong> values contained in <strong>sig</strong>.</p> <p>The <strong>r</strong> and <strong>s</strong> values can be set by calling DSA_SIG_set0() and passing the new values for <strong>r</strong> and <strong>s</strong> as parameters to the function. Calling this function transfers the memory management of the values to the DSA_SIG object, and therefore the values that have been passed in should not be freed directly after this function has been called.</p> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p>If the allocation fails, <code>DSA_SIG_new()</code> returns <strong>NULL</strong> and sets an error code that can be obtained by <em>ERR_get_error(3)</em>. Otherwise it returns a pointer to the newly allocated structure.</p> <p><code>DSA_SIG_free()</code> returns no value.</p> <p>DSA_SIG_set0() returns 1 on success or 0 on failure.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>DSA_new(3)</em>, <em>ERR_get_error(3)</em>, <em>DSA_do_sign(3)</em></p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.</p> <p>Licensed under the OpenSSL license (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> </body> </html>