open source

Conch/source/common/util/JCCrypto.h

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+/**
+@file			JCCrypto.h
+@brief
+@author			hugao
+@version		1.0
+@date			2016_5_12
+*/
+
+#ifndef __JCCrypto_H__
+#define __JCCrypto_H__
+
+#pragma warning(disable:4786)
+#define NORMAL_SIZE BUFSIZ
+#include <string>
+using namespace std;
+namespace laya
+{
+    char *base64_decode(const unsigned char *str, int length, int *ret_length);
+    char* base64_encode(const unsigned char *str, int length, int *ret_length);
+
+    unsigned int base64Decode(char *pDest, const char *pSrc, unsigned int srclen);
+    unsigned int base64Encode(char *pDest, const char *pSrc, unsigned int srclen);
+    class JCBKDRHash {
+    public:
+        static unsigned int hashStr(const unsigned char* str);
+
+        static unsigned int hashMem(const unsigned char* mem, int len);
+    };
+#ifndef WEBASM
+    struct MD5_DATA
+    {
+        unsigned long data[4];
+        bool operator < (const MD5_DATA& p) const
+        {
+            return memcmp(data, p.data, 4 * sizeof(long))>0;
+        }
+    };
+
+    class JCMD5
+    {
+    private:
+        
+        struct md5_context
+        {
+            unsigned int total[2];
+            unsigned int state[4];
+            unsigned char buffer[64];
+        };
+
+        void md5_starts(struct md5_context *ctx);
+        void md5_process(struct md5_context *ctx, unsigned char data[64]);
+        void md5_update(struct md5_context *ctx, unsigned char *input, size_t length);
+        void md5_finish(struct md5_context *ctx, unsigned char digest[16]);
+
+    public:
+        //! construct a CMD5 from any buffer
+        void GenerateMD5(unsigned char* buffer, size_t bufferlen);
+
+        //! construct a CMD5
+        JCMD5();
+
+        //! construct a md5src from char *
+        JCMD5(const char * md5src);
+
+        //! construct a CMD5 from a 16 bytes md5
+        JCMD5(unsigned long* md5src);
+
+        //! add a other md5
+        JCMD5 operator +(JCMD5 adder);
+
+        //! just if equal
+        bool operator ==(JCMD5 cmper);
+
+        //! give the value from equer
+        // void operator =(CMD5 equer);
+
+        //! to a string
+        string ToString();
+
+        unsigned long m_data[4];
+    };
+#ifndef THIN_COMMON_WITHOUT_DOWNLOAD
+    class JCEncrypt
+    {
+    public:
+
+        /** @brief构造函数
+        */
+        JCEncrypt();
+
+        /** @brief析构函数
+        */
+        ~JCEncrypt();
+
+        static bool decrypt(char *buf, int len);
+
+        static std::string getpassCode(std::string url);
+
+    private:
+        static std::string s_sPassCode;//生成秘钥的辅助字符串
+        static std::string s_sPreCode; //加密文件的前面的标志
+        static std::string s_sPassMd5; //秘钥
+    public:
+        static int         s_nPreLen; //加密前缀的字数
+    };
+#endif
+    uint32_t crc32(const unsigned char *buf, uint32_t size);
+
+#endif
+}
+//------------------------------------------------------------------------------
+
+
+#endif //__JCCrypto_H__
+
+//-----------------------------END FILE--------------------------------