1 /*
2  * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
3  *
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
8  */
9 
10 /*
11  * RC4 low level APIs are deprecated for public use, but still ok for internal
12  * use.
13  */
14 #include "internal/deprecated.h"
15 
16 #include "cipher_rc4.h"
17 
cipher_hw_rc4_initkey(PROV_CIPHER_CTX * ctx,const unsigned char * key,size_t keylen)18 static int cipher_hw_rc4_initkey(PROV_CIPHER_CTX *ctx,
19                                  const unsigned char *key, size_t keylen)
20 {
21     PROV_RC4_CTX *rctx =  (PROV_RC4_CTX *)ctx;
22 
23     RC4_set_key(&rctx->ks.ks, keylen, key);
24     return 1;
25 }
26 
cipher_hw_rc4_cipher(PROV_CIPHER_CTX * ctx,unsigned char * out,const unsigned char * in,size_t len)27 static int cipher_hw_rc4_cipher(PROV_CIPHER_CTX *ctx, unsigned char *out,
28                                 const unsigned char *in, size_t len)
29 {
30     PROV_RC4_CTX *rctx =  (PROV_RC4_CTX *)ctx;
31 
32     RC4(&rctx->ks.ks, len, in, out);
33     return 1;
34 }
35 
36 static const PROV_CIPHER_HW rc4_hw = {
37     cipher_hw_rc4_initkey,
38     cipher_hw_rc4_cipher
39 };
ossl_prov_cipher_hw_rc4(size_t keybits)40 const PROV_CIPHER_HW *ossl_prov_cipher_hw_rc4(size_t keybits)
41 {
42     return &rc4_hw;
43 }
44 
45