xref: /openssl/doc/man3/EVP_md2.pod (revision b6eb95fa)
1=pod
2
3=head1 NAME
4
5EVP_md2
6- MD2 For EVP
7
8=head1 SYNOPSIS
9
10 #include <openssl/evp.h>
11
12 const EVP_MD *EVP_md2(void);
13
14=head1 DESCRIPTION
15
16MD2 is a cryptographic hash function standardized in RFC 1319 and designed by
17Ronald Rivest. This implementation is only available with the legacy provider.
18
19=over 4
20
21=item EVP_md2()
22
23The MD2 algorithm which produces a 128-bit output from a given input.
24
25=back
26
27=head1 NOTES
28
29Developers should be aware of the negative performance implications of
30calling this function multiple times and should consider using
31L<EVP_MD_fetch(3)> with L<EVP_MD-MD2(7)> instead.
32See L<crypto(7)/Performance> for further information.
33
34=head1 RETURN VALUES
35
36These functions return a B<EVP_MD> structure that contains the
37implementation of the message digest. See L<EVP_MD_meth_new(3)> for
38details of the B<EVP_MD> structure.
39
40=head1 CONFORMING TO
41
42IETF RFC 1319.
43
44=head1 SEE ALSO
45
46L<evp(7)>,
47L<provider(7)>,
48L<EVP_DigestInit(3)>
49
50=head1 COPYRIGHT
51
52Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
53
54Licensed under the Apache License 2.0 (the "License").  You may not use
55this file except in compliance with the License.  You can obtain a copy
56in the file LICENSE in the source distribution or at
57L<https://www.openssl.org/source/license.html>.
58
59=cut
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61