zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/rc4/rc4_enc.c b/ap/lib/libssl/openssl-1.1.1o/crypto/rc4/rc4_enc.c
new file mode 100644
index 0000000..09ef6a8
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/rc4/rc4_enc.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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
+ */
+
+#include <openssl/rc4.h>
+#include "rc4_local.h"
+
+/*-
+ * RC4 as implemented from a posting from
+ * Newsgroups: sci.crypt
+ * Subject: RC4 Algorithm revealed.
+ * Message-ID: <sternCvKL4B.Hyy@netcom.com>
+ * Date: Wed, 14 Sep 1994 06:35:31 GMT
+ */
+
+void RC4(RC4_KEY *key, size_t len, const unsigned char *indata,
+ unsigned char *outdata)
+{
+ register RC4_INT *d;
+ register RC4_INT x, y, tx, ty;
+ size_t i;
+
+ x = key->x;
+ y = key->y;
+ d = key->data;
+
+#define LOOP(in,out) \
+ x=((x+1)&0xff); \
+ tx=d[x]; \
+ y=(tx+y)&0xff; \
+ d[x]=ty=d[y]; \
+ d[y]=tx; \
+ (out) = d[(tx+ty)&0xff]^ (in);
+
+ i = len >> 3;
+ if (i) {
+ for (;;) {
+ LOOP(indata[0], outdata[0]);
+ LOOP(indata[1], outdata[1]);
+ LOOP(indata[2], outdata[2]);
+ LOOP(indata[3], outdata[3]);
+ LOOP(indata[4], outdata[4]);
+ LOOP(indata[5], outdata[5]);
+ LOOP(indata[6], outdata[6]);
+ LOOP(indata[7], outdata[7]);
+ indata += 8;
+ outdata += 8;
+ if (--i == 0)
+ break;
+ }
+ }
+ i = len & 0x07;
+ if (i) {
+ for (;;) {
+ LOOP(indata[0], outdata[0]);
+ if (--i == 0)
+ break;
+ LOOP(indata[1], outdata[1]);
+ if (--i == 0)
+ break;
+ LOOP(indata[2], outdata[2]);
+ if (--i == 0)
+ break;
+ LOOP(indata[3], outdata[3]);
+ if (--i == 0)
+ break;
+ LOOP(indata[4], outdata[4]);
+ if (--i == 0)
+ break;
+ LOOP(indata[5], outdata[5]);
+ if (--i == 0)
+ break;
+ LOOP(indata[6], outdata[6]);
+ if (--i == 0)
+ break;
+ }
+ }
+ key->x = x;
+ key->y = y;
+}