openssl/doc/man3/EVP_mdc2.pod
Sebastian Andrzej Siewior 0f6c3ebbf8 doc: Add a hint to man3/EVP_$hash that it is legacy
Some hash algorithms are only provided by the legacy provider. This
information is not mentioned in EVP_md4(3) for md4 and one might wonder
why it is no longer working.

Add a note to the EVP_ man page for md2, md4, mdc2, ripemd160 and
whirlpool that it is only available with the legacy provider.

Fixes #11650

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/12074)
2020-06-11 17:28:10 +03:00

56 lines
1.1 KiB
Plaintext

=pod
=head1 NAME
EVP_mdc2
- MDC-2 For EVP
=head1 SYNOPSIS
#include <openssl/evp.h>
const EVP_MD *EVP_mdc2(void);
=head1 DESCRIPTION
MDC-2 (Modification Detection Code 2 or Meyer-Schilling) is a cryptographic
hash function based on a block cipher. This implementation is only available
with the legacy provider.
=over 4
=item EVP_mdc2()
The MDC-2DES algorithm of using MDC-2 with the DES block cipher. It produces a
128-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
ISO/IEC 10118-2:2000 Hash-Function 2, with DES as the underlying block cipher.
=head1 SEE ALSO
L<evp(7)>,
L<provider(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