# EVP_CIPHER-RC5 - The RC5 EVP_CIPHER implementations - man(7ssl) - [phpMan]

[_EVP_CIPHER-RC5_(7SSL)](https://www.chedong.com/phpMan.php/man/EVPCIPHER-RC5/7SSL/markdown)                           OpenSSL                          [_EVP_CIPHER-RC5_(7SSL)](https://www.chedong.com/phpMan.php/man/EVPCIPHER-RC5/7SSL/markdown)

## NAME
       EVP_CIPHER-RC5 - The RC5 EVP_CIPHER implementations

## DESCRIPTION
       Support for RC5 symmetric encryption using the **EVP_CIPHER **API.

       Disabled by default. Use the _enable-rc5_ configuration option to enable.

### Algorithm Names
       The following algorithms are available in the legacy provider:

       "RC5-CBC" or "RC5"
       "RC5-ECB"
       "RC5-OFB"
       "RC5-CFB"

### Parameters
       This implementation supports the parameters described in "PARAMETERS" in [**EVP_EncryptInit**(3)](https://www.chedong.com/phpMan.php/man/EVPEncryptInit/3/markdown).

## SEE ALSO
       [**provider-cipher**(7)](https://www.chedong.com/phpMan.php/man/provider-cipher/7/markdown), [**OSSL_PROVIDER-legacy**(7)](https://www.chedong.com/phpMan.php/man/OSSLPROVIDER-legacy/7/markdown)

## COPYRIGHT
       Copyright 2021 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>>.

3.0.13                                       2026-07-29                         [_EVP_CIPHER-RC5_(7SSL)](https://www.chedong.com/phpMan.php/man/EVPCIPHER-RC5/7SSL/markdown)