1=pod
2
3=head1 NAME
4
5EVP_sm4_cbc,
6EVP_sm4_ecb,
7EVP_sm4_cfb,
8EVP_sm4_cfb128,
9EVP_sm4_ofb,
10EVP_sm4_ctr
11- EVP SM4 cipher
12
13=head1 SYNOPSIS
14
15 #include <openssl/evp.h>
16
17 const EVP_CIPHER *EVP_sm4_cbc(void);
18 const EVP_CIPHER *EVP_sm4_ecb(void);
19 const EVP_CIPHER *EVP_sm4_cfb(void);
20 const EVP_CIPHER *EVP_sm4_cfb128(void);
21 const EVP_CIPHER *EVP_sm4_ofb(void);
22 const EVP_CIPHER *EVP_sm4_ctr(void);
23
24=head1 DESCRIPTION
25
26The SM4 blockcipher (GB/T 32907-2016) for EVP.
27
28All modes below use a key length of 128 bits and acts on blocks of 128 bits.
29
30=over 4
31
32=item EVP_sm4_cbc(),
33EVP_sm4_ecb(),
34EVP_sm4_cfb(),
35EVP_sm4_cfb128(),
36EVP_sm4_ofb(),
37EVP_sm4_ctr()
38
39The SM4 blockcipher with a 128-bit key in CBC, ECB, CFB, OFB and CTR modes
40respectively.
41
42=back
43
44=head1 RETURN VALUES
45
46These functions return a B<EVP_CIPHER> structure that contains the
47implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
48details of the B<EVP_CIPHER> structure.
49
50=head1 SEE ALSO
51
52L<evp(7)>,
53L<EVP_EncryptInit(3)>,
54L<EVP_CIPHER_meth_new(3)>
55
56=head1 COPYRIGHT
57
58Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
59Copyright 2017 Ribose Inc. All Rights Reserved.
60
61Licensed under the OpenSSL license (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
68