2017-10-31 15:43:01 +08:00
|
|
|
=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
|
2022-04-25 16:51:00 +08:00
|
|
|
implementation of the message digest. See L<EVP_MD_meth_new(3)> for
|
2017-10-31 15:43:01 +08:00
|
|
|
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
|
|
|
|
|
|
2022-05-03 18:52:38 +08:00
|
|
|
Copyright 2017-2022 The OpenSSL Project Authors. All Rights Reserved.
|
2017-10-31 15:43:01 +08:00
|
|
|
|
2018-12-06 21:04:44 +08:00
|
|
|
Licensed under the Apache License 2.0 (the "License"). You may not use
|
2017-10-31 15:43:01 +08:00
|
|
|
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
|
|
|
|
|
|
