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.