| Current Path : /usr/opt/openssl11/share/doc/openssl/html/man3/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/opt/openssl11/share/doc/openssl/html/man3/EVP_PKEY_get_default_digest_nid.html |
<?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>EVP_PKEY_get_default_digest_nid</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="#notes">NOTES</a></li> <li><a href="#return_values">RETURN VALUES</a></li> <li><a href="#see_also">SEE ALSO</a></li> <li><a href="#history">HISTORY</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>EVP_PKEY_get_default_digest_nid - get default signature digest</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/evp.h> int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid);</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p>The <code>EVP_PKEY_get_default_digest_nid()</code> function sets <strong>pnid</strong> to the default message digest NID for the public key signature operations associated with key <strong>pkey</strong>. Note that some signature algorithms (i.e. Ed25519 and Ed448) do not use a digest during signing. In this case <strong>pnid</strong> will be set to NID_undef.</p> <p> </p> <hr /> <h1><a name="notes">NOTES</a></h1> <p>For all current standard OpenSSL public key algorithms SHA1 is returned.</p> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p>The <code>EVP_PKEY_get_default_digest_nid()</code> function returns 1 if the message digest is advisory (that is other digests can be used) and 2 if it is mandatory (other digests can not be used). It returns 0 or a negative value for failure. In particular a return value of -2 indicates the operation is not supported by the public key algorithm.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>EVP_PKEY_CTX_new(3)</em>, <em>EVP_PKEY_sign(3)</em>, <em>EVP_PKEY_verify(3)</em>, <em>EVP_PKEY_verify_recover(3)</em>,</p> <p> </p> <hr /> <h1><a name="history">HISTORY</a></h1> <p>This function was added in OpenSSL 1.0.0.</p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2006-2018 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>