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EVP_rc2_cbc(3)                      OpenSSL                     EVP_rc2_cbc(3)



NAME
       EVP_rc2_cbc, EVP_rc2_cfb, EVP_rc2_cfb64, EVP_rc2_ecb, EVP_rc2_ofb,
       EVP_rc2_40_cbc, EVP_rc2_64_cbc - EVP RC2 cipher

LIBRARY
       libcrypto, -lcrypto

SYNOPSIS
        #include <openssl/evp.h>

        const EVP_CIPHER *EVP_rc2_cbc(void);
        const EVP_CIPHER *EVP_rc2_cfb(void);
        const EVP_CIPHER *EVP_rc2_cfb64(void);
        const EVP_CIPHER *EVP_rc2_ecb(void);
        const EVP_CIPHER *EVP_rc2_ofb(void);
        const EVP_CIPHER *EVP_rc2_40_cbc(void);
        const EVP_CIPHER *EVP_rc2_64_cbc(void);

DESCRIPTION
       The RC2 encryption algorithm for EVP.

       EVP_rc2_cbc(), EVP_rc2_cfb(), EVP_rc2_cfb64(), EVP_rc2_ecb(),
       EVP_rc2_ofb()
           RC2 encryption algorithm in CBC, CFB, ECB and OFB modes
           respectively. This is a variable key length cipher with an
           additional parameter called "effective key bits" or "effective key
           length". By default both are set to 128 bits.

       EVP_rc2_40_cbc(), EVP_rc2_64_cbc()
           RC2 algorithm in CBC mode with a default key length and effective
           key length of 40 and 64 bits.

           WARNING: these functions are obsolete. Their usage should be
           replaced with the EVP_rc2_cbc(), EVP_CIPHER_CTX_set_key_length()
           and EVP_CIPHER_CTX_ctrl() functions to set the key length and
           effective key length.

NOTES
       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-RC2(7) instead.  See "Performance"
       in crypto(7) for further information.

RETURN VALUES
       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.

SEE ALSO
       evp(7), EVP_EncryptInit(3), EVP_CIPHER_meth_new(3)

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



3.0.12                            2023-10-25                    EVP_rc2_cbc(3)