1EVP_SHA1(3)                         OpenSSL                        EVP_SHA1(3)
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NAME

6       EVP_sha1 - SHA-1 For EVP
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SYNOPSIS

9        #include <openssl/evp.h>
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11        const EVP_MD *EVP_sha1(void);
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DESCRIPTION

14       SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function
15       standardized in NIST FIPS 180-4. The algorithm was designed by the
16       United States National Security Agency and initially published in 1995.
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18       EVP_sha1()
19           The SHA-1 algorithm which produces a 160-bit output from a given
20           input.
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RETURN VALUES

23       These functions return a EVP_MD structure that contains the
24       implementation of the symmetric cipher. See EVP_MD_meth_new(3) for
25       details of the EVP_MD structure.
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CONFORMING TO

28       NIST FIPS 180-4.
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SEE ALSO

31       evp(7), EVP_DigestInit(3)
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34       Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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36       Licensed under the OpenSSL license (the "License").  You may not use
37       this file except in compliance with the License.  You can obtain a copy
38       in the file LICENSE in the source distribution or at
39       <https://www.openssl.org/source/license.html>.
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431.1.1q                            2022-07-21                       EVP_SHA1(3)
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