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
 #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)
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. 
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>.