EVP_idea_cbc, EVP_idea_cfb, EVP_idea_cfb64, EVP_idea_ecb, EVP_idea_ofb - EVP
  IDEA cipher
 #include <openssl/evp.h>
 const EVP_CIPHER *EVP_idea_cbc(void)
 const EVP_CIPHER *EVP_idea_cfb(void)
 const EVP_CIPHER *EVP_idea_cfb64(void)
 const EVP_CIPHER *EVP_idea_ecb(void)
 const EVP_CIPHER *EVP_idea_ofb(void)
The IDEA encryption algorithm for EVP.
  - EVP_idea_cbc(), EVP_idea_cfb(), EVP_idea_cfb64(),
    EVP_idea_ecb(), EVP_idea_ofb()
- The IDEA encryption algorithm in CBC, CFB, ECB and OFB modes
    respectively.
These functions return an EVP_CIPHER structure that contains the
  implementation of the symmetric cipher. See EVP_CIPHER_meth_new(3) for
  details of the EVP_CIPHER structure.
evp(7), EVP_EncryptInit(3), EVP_CIPHER_meth_new(3)
Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.Licensed under the OpenSSL license (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
    <https://www.openssl.org/source/license.html>.