EVP_idea_cbc, EVP_idea_cfb, EVP_idea_cfb64, EVP_idea_ecb, EVP_idea_ofb - EVP IDEA cipher

       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
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                                 EVP_IDEA_CBC(3SSL)

       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.

       EVP_idea_cbc, EVP_idea_cfb, EVP_idea_cfb64, EVP_idea_ecb, EVP_idea_ofb - EVP IDEA cipher

       Developers  should  be aware of the negative performance implications of calling these functions multiple
       times and should consider using EVP_CIPHER_fetch(3) with EVP_CIPHER-IDEA(7) instead.   See  "Performance"
       in crypto(7) for further information.

       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)

        #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);