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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@localhost" /> </head> <body> <ul id="index"> <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> <h1 id="NAME">NAME</h1> <p>EVP_sm4_cbc, EVP_sm4_ecb, EVP_sm4_cfb, EVP_sm4_cfb128, EVP_sm4_ofb, EVP_sm4_ctr - EVP SM4 cipher</p> <h1 id="SYNOPSIS">SYNOPSIS</h1> <pre><code> #include <openssl/evp.h> 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);</code></pre> <h1 id="DESCRIPTION">DESCRIPTION</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 id="EVP_sm4_cbc-EVP_sm4_ecb-EVP_sm4_cfb-EVP_sm4_cfb128-EVP_sm4_ofb-EVP_sm4_ctr">EVP_sm4_cbc(), EVP_sm4_ecb(), EVP_sm4_cfb(), EVP_sm4_cfb128(), EVP_sm4_ofb(), EVP_sm4_ctr()</dt> <dd> <p>The SM4 blockcipher with a 128-bit key in CBC, ECB, CFB, OFB and CTR modes respectively.</p> </dd> </dl> <h1 id="RETURN-VALUES">RETURN VALUES</h1> <p>These functions return a <b>EVP_CIPHER</b> structure that contains the implementation of the symmetric cipher. See <a href="../man3/EVP_CIPHER_meth_new.html">EVP_CIPHER_meth_new(3)</a> for details of the <b>EVP_CIPHER</b> structure.</p> <h1 id="SEE-ALSO">SEE ALSO</h1> <p><a href="../man7/evp.html">evp(7)</a>, <a href="../man3/EVP_EncryptInit.html">EVP_EncryptInit(3)</a>, <a href="../man3/EVP_CIPHER_meth_new.html">EVP_CIPHER_meth_new(3)</a></p> <h1 id="COPYRIGHT">COPYRIGHT</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>