1.\" $OpenBSD: EVP_sha3_224.3,v 1.2 2023/08/15 11:54:38 schwarze Exp $ 2.\" selective merge up to: OpenSSL bbda8ce9 Oct 31 15:43:01 2017 +0800 3.\" 4.\" This file was written by Ronald Tse <ronald.tse@ribose.com>. 5.\" Copyright (c) 2017 The OpenSSL Project. All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 11.\" 1. Redistributions of source code must retain the above copyright 12.\" notice, this list of conditions and the following disclaimer. 13.\" 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in 16.\" the documentation and/or other materials provided with the 17.\" distribution. 18.\" 19.\" 3. All advertising materials mentioning features or use of this 20.\" software must display the following acknowledgment: 21.\" "This product includes software developed by the OpenSSL Project 22.\" for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 23.\" 24.\" 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 25.\" endorse or promote products derived from this software without 26.\" prior written permission. For written permission, please contact 27.\" openssl-core@openssl.org. 28.\" 29.\" 5. Products derived from this software may not be called "OpenSSL" 30.\" nor may "OpenSSL" appear in their names without prior written 31.\" permission of the OpenSSL Project. 32.\" 33.\" 6. Redistributions of any form whatsoever must retain the following 34.\" acknowledgment: 35.\" "This product includes software developed by the OpenSSL Project 36.\" for use in the OpenSSL Toolkit (http://www.openssl.org/)" 37.\" 38.\" THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 39.\" EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 41.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 42.\" ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 44.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 45.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 48.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 49.\" OF THE POSSIBILITY OF SUCH DAMAGE. 50.\" 51.Dd $Mdocdate: August 15 2023 $ 52.Dt EVP_SHA3_224 3 53.Os 54.Sh NAME 55.Nm EVP_sha3_224 , 56.Nm EVP_sha3_256 , 57.Nm EVP_sha3_384 , 58.Nm EVP_sha3_512 59.Nd Secure Hash Algorithm 3 for EVP 60.Sh SYNOPSIS 61.In openssl/evp.h 62.Ft const EVP_MD * 63.Fn EVP_sha3_224 void 64.Ft const EVP_MD * 65.Fn EVP_sha3_256 void 66.Ft const EVP_MD * 67.Fn EVP_sha3_384 void 68.Ft const EVP_MD * 69.Fn EVP_sha3_512 void 70.Sh DESCRIPTION 71SHA-3 (Secure Hash Algorithm 3) is a family of cryptographic hash 72functions standardized in NIST FIPS 202, first published in 2015. 73It is based on the Keccak algorithm. 74.Pp 75.Fn EVP_sha3_224 , 76.Fn EVP_sha3_256 , 77.Fn EVP_sha3_384 , 78and 79.Fn EVP_sha3_512 80implement the SHA3-224, SHA3-256, SHA3-384, and SHA3-512 algorithms 81and produce 224, 256, 384 and 512 bits of output from a given input, 82respectively. 83.Sh RETURN VALUES 84These functions return pointers to static 85.Vt EVP_MD 86objects implementing the hash functions. 87.Sh SEE ALSO 88.Xr evp 3 , 89.Xr EVP_DigestInit 3 , 90.Xr EVP_MD_meth_new 3 91.Sh STANDARDS 92NIST FIPS 202 93