]>
git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/evp/e_rc4.c
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * RC4 low level APIs are deprecated for public use, but still ok for internal
14 #include "internal/deprecated.h"
17 #include "internal/cryptlib.h"
19 #ifndef OPENSSL_NO_RC4
21 # include <openssl/evp.h>
22 # include <openssl/objects.h>
23 # include <openssl/rc4.h>
25 # include "crypto/evp.h"
28 RC4_KEY ks
; /* working key */
31 # define data(ctx) ((EVP_RC4_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx))
33 static int rc4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
34 const unsigned char *iv
, int enc
);
35 static int rc4_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
36 const unsigned char *in
, size_t inl
);
37 static const EVP_CIPHER r4_cipher
= {
39 1, EVP_RC4_KEY_SIZE
, 0,
40 EVP_CIPH_VARIABLE_LENGTH
,
51 static const EVP_CIPHER r4_40_cipher
= {
53 1, 5 /* 40 bit */ , 0,
54 EVP_CIPH_VARIABLE_LENGTH
,
65 const EVP_CIPHER
*EVP_rc4(void)
70 const EVP_CIPHER
*EVP_rc4_40(void)
75 static int rc4_init_key(EVP_CIPHER_CTX
*ctx
, const unsigned char *key
,
76 const unsigned char *iv
, int enc
)
78 RC4_set_key(&data(ctx
)->ks
, EVP_CIPHER_CTX_key_length(ctx
), key
);
82 static int rc4_cipher(EVP_CIPHER_CTX
*ctx
, unsigned char *out
,
83 const unsigned char *in
, size_t inl
)
85 RC4(&data(ctx
)->ks
, inl
, in
, out
);