1.\" $OpenBSD: EVP_sm3.3,v 1.1 2019/08/25 17:08:20 schwarze Exp $ 2.\" full merge up to: OpenSSL 21ebd2fc Aug 24 20:38:04 2018 +0800 3.\" 4.\" This file was written by Jack Lloyd <jack.lloyd@ribose.com> 5.\" and Ronald Tse <ronald.tse@ribose.com>. 6.\" Copyright (c) 2017 The OpenSSL Project. All rights reserved. 7.\" Copyright (c) 2017 Ribose Inc. All Rights Reserved. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 16.\" 2. Redistributions in binary form must reproduce the above copyright 17.\" notice, this list of conditions and the following disclaimer in 18.\" the documentation and/or other materials provided with the 19.\" distribution. 20.\" 21.\" 3. All advertising materials mentioning features or use of this 22.\" software must display the following acknowledgment: 23.\" "This product includes software developed by the OpenSSL Project 24.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 25.\" 26.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27.\" endorse or promote products derived from this software without 28.\" prior written permission. For written permission, please contact 29.\" openssl-core@openssl.org. 30.\" 31.\" 5. Products derived from this software may not be called "OpenSSL" 32.\" nor may "OpenSSL" appear in their names without prior written 33.\" permission of the OpenSSL Project. 34.\" 35.\" 6. Redistributions of any form whatsoever must retain the following 36.\" acknowledgment: 37.\" "This product includes software developed by the OpenSSL Project 38.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 39.\" 40.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51.\" OF THE POSSIBILITY OF SUCH DAMAGE. 52.\" 53.Dd $Mdocdate: August 25 2019 $ 54.Dt EVP_SM3 3 55.Os 56.Sh NAME 57.Nm EVP_sm3 58.Nd SM3 hash function for EVP 59.Sh SYNOPSIS 60.In openssl/evp.h 61.Ft const EVP_MD * 62.Fn EVP_sm3 void 63.Sh DESCRIPTION 64SM3 is a cryptographic hash function with a 256-bit output. 65It is part of the Chinese 66.Dq Commercial Cryptography 67suite of algorithms which is required 68for certain commercial applications in China. 69.Sh RETURN VALUES 70.Fn EVP_sm3 71returns a pointer to a static 72.Vt EVP_MD 73object implementing the SM3 hash function. 74.Sh SEE ALSO 75.Xr evp 3 , 76.Xr EVP_DigestInit 3 77.Sh STANDARDS 78GB/T 32905-2016 and GM/T 0004-2012 79.Sh HISTORY 80.Fn EVP_sm3 81first appeared in OpenSSL 1.1.1 and has been available since 82.Ox 6.5 . 83