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