xref: /openssl/doc/man3/EVP_idea_cbc.pod (revision b6eb95fa)
1=pod
2
3=head1 NAME
4
5EVP_idea_cbc,
6EVP_idea_cfb,
7EVP_idea_cfb64,
8EVP_idea_ecb,
9EVP_idea_ofb
10- EVP IDEA cipher
11
12=head1 SYNOPSIS
13
14 #include <openssl/evp.h>
15
16 const EVP_CIPHER *EVP_idea_cbc(void);
17 const EVP_CIPHER *EVP_idea_cfb(void);
18 const EVP_CIPHER *EVP_idea_cfb64(void);
19 const EVP_CIPHER *EVP_idea_ecb(void);
20 const EVP_CIPHER *EVP_idea_ofb(void);
21
22=head1 DESCRIPTION
23
24The IDEA encryption algorithm for EVP.
25
26=over 4
27
28=item EVP_idea_cbc(),
29EVP_idea_cfb(),
30EVP_idea_cfb64(),
31EVP_idea_ecb(),
32EVP_idea_ofb()
33
34The IDEA encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
35
36=back
37
38=head1 NOTES
39
40Developers should be aware of the negative performance implications of
41calling these functions multiple times and should consider using
42L<EVP_CIPHER_fetch(3)> with L<EVP_CIPHER-IDEA(7)> instead.
43See L<crypto(7)/Performance> for further information.
44
45=head1 RETURN VALUES
46
47These functions return an B<EVP_CIPHER> structure that contains the
48implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
49details of the B<EVP_CIPHER> structure.
50
51=head1 SEE ALSO
52
53L<evp(7)>,
54L<EVP_EncryptInit(3)>,
55L<EVP_CIPHER_meth_new(3)>
56
57=head1 COPYRIGHT
58
59Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
60
61Licensed under the Apache License 2.0 (the "License").  You may not use
62this file except in compliance with the License.  You can obtain a copy
63in the file LICENSE in the source distribution or at
64L<https://www.openssl.org/source/license.html>.
65
66=cut
67