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