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=pod
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=head1 NAME
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2017-10-21 10:59:09 +08:00
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EVP_seed_cbc,
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EVP_seed_cfb,
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2018-10-02 05:11:57 +08:00
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EVP_seed_cfb128,
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2017-10-21 10:59:09 +08:00
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EVP_seed_ecb,
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EVP_seed_ofb
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- EVP SEED cipher
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=head1 SYNOPSIS
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#include <openssl/evp.h>
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2020-07-15 16:26:35 +08:00
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const EVP_CIPHER *EVP_seed_cbc(void);
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const EVP_CIPHER *EVP_seed_cfb(void);
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const EVP_CIPHER *EVP_seed_cfb128(void);
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const EVP_CIPHER *EVP_seed_ecb(void);
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const EVP_CIPHER *EVP_seed_ofb(void);
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=head1 DESCRIPTION
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2017-10-21 10:59:09 +08:00
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The SEED encryption algorithm for EVP.
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2017-10-31 13:19:14 +08:00
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2017-10-21 10:59:09 +08:00
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All modes below use a key length of 128 bits and acts on blocks of 128-bits.
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2017-10-31 13:19:14 +08:00
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=over 4
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2017-10-21 10:59:09 +08:00
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=item EVP_seed_cbc(),
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EVP_seed_cfb(),
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2018-10-02 05:11:57 +08:00
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EVP_seed_cfb128(),
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2017-10-21 10:59:09 +08:00
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EVP_seed_ecb(),
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EVP_seed_ofb()
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2017-10-31 13:19:14 +08:00
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2017-10-21 10:59:09 +08:00
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The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
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2017-10-31 13:19:14 +08:00
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=back
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2023-02-22 08:11:33 +08:00
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=head1 NOTES
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Developers should be aware of the negative performance implications of
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calling these functions multiple times and should consider using
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2023-10-18 21:35:55 +08:00
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L<EVP_CIPHER_fetch(3)> with L<EVP_CIPHER-SEED(7)> instead.
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2023-02-22 08:11:33 +08:00
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See L<crypto(7)/Performance> for further information.
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2017-10-31 13:19:14 +08:00
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=head1 RETURN VALUES
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2017-10-21 10:59:09 +08:00
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These functions return an B<EVP_CIPHER> structure that contains the
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implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
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details of the B<EVP_CIPHER> structure.
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=head1 SEE ALSO
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L<evp(7)>,
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L<EVP_EncryptInit(3)>,
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L<EVP_CIPHER_meth_new(3)>
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=head1 COPYRIGHT
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2023-09-07 16:59:15 +08:00
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Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
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2017-10-31 13:19:14 +08:00
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2018-12-06 21:04:44 +08:00
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Licensed under the Apache License 2.0 (the "License"). You may not use
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2017-10-31 13:19:14 +08:00
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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