EVP_rc4, EVP_rc4_40, EVP_rc4_hmac_md5 - EVP RC4 stream cipher
#include <openssl/evp.h>
const EVP_CIPHER *EVP_rc4(void);
const EVP_CIPHER *EVP_rc4_40(void);
const EVP_CIPHER *EVP_rc4_hmac_md5(void);
The RC4 stream cipher for EVP.
- EVP_rc4()
- RC4 stream cipher. This is a variable key length cipher
with a default key length of 128 bits.
- EVP_rc4_40()
- RC4 stream cipher with 40 bit key length.
WARNING: this function is obsolete. Its usage should be replaced with the
EVP_rc4() and the EVP_CIPHER_CTX_set_key_length()
functions.
- EVP_rc4_hmac_md5()
- Authenticated encryption with the RC4 stream cipher with
MD5 as HMAC.
WARNING: this is not intended for usage outside of TLS and requires calling
of some undocumented ctrl functions. These ciphers do not conform to the
EVP AEAD interface.
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-RC4(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)
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>.