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NAME

       EVP_sha1 - SHA-1 For EVP

SYNOPSIS

        #include <openssl/evp.h>

        const EVP_MD *EVP_sha1(void);

DESCRIPTION

       SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function standardized in NIST FIPS
       180-4. The algorithm was designed by the United States National Security Agency and
       initially published in 1995.

       EVP_sha1()
           The SHA-1 algorithm which produces a 160-bit output from a given input.

RETURN VALUES

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

CONFORMING TO

       NIST FIPS 180-4.

SEE ALSO

       evp(7), EVP_DigestInit(3)

COPYRIGHT

       Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.

       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 <https://www.openssl.org/source/license.html>.