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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>EVP_sm4_cbc</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>EVP_sm4_cbc, EVP_sm4_ecb, EVP_sm4_cfb, EVP_sm4_cfb128, EVP_sm4_ofb, EVP_sm4_ctr - EVP SM4 cipher</p> <p> </p> <hr /> <h1><a name="synopsis">SYNOPSIS</a></h1> <pre> #include <openssl/evp.h></pre> <pre> const EVP_CIPHER *EVP_sm4_cbc(void); const EVP_CIPHER *EVP_sm4_ecb(void); const EVP_CIPHER *EVP_sm4_cfb(void); const EVP_CIPHER *EVP_sm4_cfb128(void); const EVP_CIPHER *EVP_sm4_ofb(void); const EVP_CIPHER *EVP_sm4_ctr(void);</pre> <p> </p> <hr /> <h1><a name="description">DESCRIPTION</a></h1> <p>The SM4 blockcipher (GB/T 32907-2016) for EVP.</p> <p>All modes below use a key length of 128 bits and acts on blocks of 128 bits.</p> <dl> <dt><strong><a name="evp_sm4_cbc" class="item">EVP_sm4_cbc(), EVP_sm4_ecb(), EVP_sm4_cfb(), EVP_sm4_cfb128(), EVP_sm4_ofb(), EVP_sm4_ctr()</a></strong></dt> <dd> <p>The SM4 blockcipher with a 128-bit key in CBC, ECB, CFB, OFB and CTR modes respectively.</p> </dd> </dl> <p> </p> <hr /> <h1><a name="return_values">RETURN VALUES</a></h1> <p>These functions return a <strong>EVP_CIPHER</strong> structure that contains the implementation of the symmetric cipher. See <em>EVP_CIPHER_meth_new(3)</em> for details of the <strong>EVP_CIPHER</strong> structure.</p> <p> </p> <hr /> <h1><a name="see_also">SEE ALSO</a></h1> <p><em>evp(7)</em>, <em>EVP_EncryptInit(3)</em>, <em>EVP_CIPHER_meth_new(3)</em></p> <p> </p> <hr /> <h1><a name="copyright">COPYRIGHT</a></h1> <p>Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved. Copyright 2017 Ribose Inc. 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>