| =pod |
| |
| =head1 NAME |
| |
| EVP_sha1 |
| - SHA-1 For EVP |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/evp.h> |
| |
| const EVP_MD *EVP_sha1(void); |
| |
| =head1 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. |
| |
| =over 4 |
| |
| =item EVP_sha1() |
| |
| The SHA-1 algorithm which produces a 160-bit output from a given input. |
| |
| =back |
| |
| |
| =head1 RETURN VALUES |
| |
| These functions return a B<EVP_MD> structure that contains the |
| implementation of the symmetric cipher. See L<EVP_MD_meth_new(3)> for |
| details of the B<EVP_MD> structure. |
| |
| =head1 CONFORMING TO |
| |
| NIST FIPS 180-4. |
| |
| =head1 SEE ALSO |
| |
| L<evp(7)>, |
| L<EVP_DigestInit(3)> |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. |
| |
| Licensed under the Apache License 2.0 (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 |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
| |
