| =pod |
| |
| =head1 NAME |
| |
| EVP_rc4, |
| EVP_rc4_40, |
| EVP_rc4_hmac_md5 |
| - EVP RC4 stream cipher |
| |
| =head1 SYNOPSIS |
| |
| #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); |
| |
| =head1 DESCRIPTION |
| |
| The RC4 stream cipher for EVP. |
| |
| =over 4 |
| |
| =item EVP_rc4() |
| |
| RC4 stream cipher. This is a variable key length cipher with a default key |
| length of 128 bits. |
| |
| =item 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| WARNING: this function is obsolete.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. |
| |
| =item 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. |
| |
| =back |
| |
| =head1 RETURN VALUES |
| |
| These functions return an B<EVP_CIPHER> structure that contains the |
| implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for |
| details of the B<EVP_CIPHER> structure. |
| |
| =head1 SEE ALSO |
| |
| L<evp(7)>, |
| L<EVP_EncryptInit(3)>, |
| L<EVP_CIPHER_meth_new(3)> |
| |
| =head1 COPYRIGHT |
| |
| Copyright 2017-2020 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 |
| L<https://www.openssl.org/source/license.html>. |
| |
| =cut |
