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 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 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 }; 40 const PROV_CIPHER_HW *ossl_prov_cipher_hw_rc4(size_t keybits) 41 { 42 return &rc4_hw; 43 } 44 45