[thirdparty/openssl.git] / doc / man3 / EVP_seed_cbc.pod

=pod

=head1 NAME

EVP_seed_cbc,
EVP_seed_cfb,
EVP_seed_cfb128,
EVP_seed_ecb,
EVP_seed_ofb
- EVP SEED cipher

=head1 SYNOPSIS

 #include <openssl/evp.h>

 const EVP_CIPHER *EVP_seed_cbc(void);
 const EVP_CIPHER *EVP_seed_cfb(void);
 const EVP_CIPHER *EVP_seed_cfb128(void);
 const EVP_CIPHER *EVP_seed_ecb(void);
 const EVP_CIPHER *EVP_seed_ofb(void);

=head1 DESCRIPTION

The SEED encryption algorithm for EVP.

All modes below use a key length of 128 bits and acts on blocks of 128-bits.

=over 4

=item EVP_seed_cbc(),
EVP_seed_cfb(),
EVP_seed_cfb128(),
EVP_seed_ecb(),
EVP_seed_ofb()

The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.

=back

=head1 NOTES

Developers should be aware of the negative performance implications of
calling these functions multiple times and should consider using
L<EVP_CIPHER_fetch(3)> instead.
See L<crypto(7)/Performance> for further information.

=head1 RETURN VALUES

These functions return an B<EVP_CIPHER> structure that contains the
implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
details of the B<EVP_CIPHER> structure.

=head1 SEE ALSO

L<evp(7)>,
L<EVP_EncryptInit(3)>,
L<EVP_CIPHER_meth_new(3)>

=head1 COPYRIGHT

Copyright 2017-2023 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
Commit	Line	Data
f19a5ff9 RT	1	=pod
	2
	3	=head1 NAME
	4
8fa4d95e RT	5	EVP_seed_cbc,
8fa4d95e RT	6	EVP_seed_cfb,
ffd89124	7	EVP_seed_cfb128,
8fa4d95e RT	8	EVP_seed_ecb,
	9	EVP_seed_ofb
	10	- EVP SEED cipher
f19a5ff9 RT	11
	12	=head1 SYNOPSIS
	13
f19a5ff9 RT	14	#include <openssl/evp.h>
f19a5ff9 RT	15
f64f17c3 SL	16	const EVP_CIPHER *EVP_seed_cbc(void);
	17	const EVP_CIPHER *EVP_seed_cfb(void);
	18	const EVP_CIPHER *EVP_seed_cfb128(void);
	19	const EVP_CIPHER *EVP_seed_ecb(void);
	20	const EVP_CIPHER *EVP_seed_ofb(void);
f19a5ff9 RT	21
	22	=head1 DESCRIPTION
	23
8fa4d95e	24	The SEED encryption algorithm for EVP.
f19a5ff9	25
8fa4d95e	26	All modes below use a key length of 128 bits and acts on blocks of 128-bits.
f19a5ff9 RT	27
	28	=over 4
	29
8fa4d95e RT	30	=item EVP_seed_cbc(),
8fa4d95e RT	31	EVP_seed_cfb(),
ffd89124	32	EVP_seed_cfb128(),
8fa4d95e RT	33	EVP_seed_ecb(),
8fa4d95e RT	34	EVP_seed_ofb()
f19a5ff9	35
8fa4d95e	36	The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
f19a5ff9 RT	37
	38	=back
	39
e798248c	40	=head1 NOTES
	41
	42	Developers should be aware of the negative performance implications of
	43	calling these functions multiple times and should consider using
	44	L<EVP_CIPHER_fetch(3)> instead.
	45	See L<crypto(7)/Performance> for further information.
	46
f19a5ff9 RT	47	=head1 RETURN VALUES
f19a5ff9 RT	48
8fa4d95e	49	These functions return an B<EVP_CIPHER> structure that contains the
f19a5ff9 RT	50	implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
	51	details of the B<EVP_CIPHER> structure.
	52
	53	=head1 SEE ALSO
	54
	55	L<evp(7)>,
	56	L<EVP_EncryptInit(3)>,
	57	L<EVP_CIPHER_meth_new(3)>
	58
	59	=head1 COPYRIGHT
	60
da1c088f	61	Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
f19a5ff9	62
4746f25a	63	Licensed under the Apache License 2.0 (the "License"). You may not use
f19a5ff9 RT	64	this file except in compliance with the License. You can obtain a copy
	65	in the file LICENSE in the source distribution or at
	66	L<https://www.openssl.org/source/license.html>.
	67
	68	=cut