/*

 * Copyright 2019-2020 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

 * https://www.openssl.org/source/license.html

 */

/*

 * RC4 low level APIs are deprecated for public use, but still ok for internal

 * use.

 */

#include "internal/deprecated.h"

#include "cipher_rc4.h"

static int cipher_hw_rc4_initkey(PROV_CIPHER_CTX *ctx,

                                 const unsigned char *key, size_t keylen)

{

    PROV_RC4_CTX *rctx =  (PROV_RC4_CTX *)ctx;

    RC4_set_key(&rctx->ks.ks, keylen, key);

    return 1;

}

static int cipher_hw_rc4_cipher(PROV_CIPHER_CTX *ctx, unsigned char *out,

                                const unsigned char *in, size_t len)

{

    PROV_RC4_CTX *rctx =  (PROV_RC4_CTX *)ctx;

    RC4(&rctx->ks.ks, len, in, out);

    return 1;

}

static const PROV_CIPHER_HW rc4_hw = {

    cipher_hw_rc4_initkey,

    cipher_hw_rc4_cipher

};

const PROV_CIPHER_HW *ossl_prov_cipher_hw_rc4(size_t keybits)

{

    return &rc4_hw;

}