use local library source instead to correct some black-box issue for aliyuniot

lib/Crypto/ChaCha.h

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2015 Southern Storm Software, Pty Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef CRYPTO_CHACHA_h
+#define CRYPTO_CHACHA_h
+
+#include "Cipher.h"
+
+class ChaChaPoly;
+
+class ChaCha : public Cipher
+{
+public:
+    explicit ChaCha(uint8_t numRounds = 20);
+    virtual ~ChaCha();
+
+    size_t keySize() const;
+    size_t ivSize() const;
+
+    uint8_t numRounds() const { return rounds; }
+    void setNumRounds(uint8_t numRounds) { rounds = numRounds; }
+
+    bool setKey(const uint8_t *key, size_t len);
+    bool setIV(const uint8_t *iv, size_t len);
+    bool setCounter(const uint8_t *counter, size_t len);
+
+    void encrypt(uint8_t *output, const uint8_t *input, size_t len);
+    void decrypt(uint8_t *output, const uint8_t *input, size_t len);
+
+    void clear();
+
+    static void hashCore(uint32_t *output, const uint32_t *input, uint8_t rounds);
+
+private:
+    uint8_t block[64];
+    uint8_t stream[64];
+    uint8_t rounds;
+    uint8_t posn;
+
+    void keystreamBlock(uint32_t *output);
+
+    friend class ChaChaPoly;
+};
+
+#endif