1 files changed, 44 insertions, 0 deletions
diff --git a/providers/implementations/ciphers/cipher_rc4_hw.c b/providers/implementations/ciphers/cipher_rc4_hw.c
new file mode 100644
index 000000000000..09192b5d5e14
--- /dev/null
+++ b/providers/implementations/ciphers/cipher_rc4_hw.c
@@ -0,0 +1,44 @@
+/*
+ * 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;
+}
+