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/*
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*******************************************************
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* brief: md5 encryption
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* author: Monkey.Knight
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*******************************************************
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*/
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#ifndef __MD5_ENCODE_H__
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#define __MD5_ENCODE_H__
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// std
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#include <string>
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// define
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#define UInt32 unsigned int
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#define BIT_OF_BYTE 8
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#define BIT_OF_GROUP 512
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#define SRC_DATA_LEN 64
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// <20>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD><D4BA><EFBFBD><EFBFBD>궨<EFBFBD><EAB6A8>
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#define DEF_F(X, Y, Z ) ((( (X) & (Y) )|((~X)&(Z))))
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#define DEF_G(X, Y, Z) (((X)&(Z))|((Y)&(~Z)))
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#define DEF_H(X, Y, Z) ((X)^(Y)^(Z))
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#define DEF_I(X, Y, Z) ((Y)^((X)|(~Z)))
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>궨<EFBFBD><EAB6A8>
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#define FF(a, b, c, d, Mj, s, ti) (a = b + CycleMoveLeft((a + DEF_F(b,c,d) + Mj + ti),s));
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#define GG(a, b, c, d, Mj, s, ti) (a = b + CycleMoveLeft((a + DEF_G(b,c,d) + Mj + ti),s));
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#define HH(a, b, c, d, Mj, s, ti) (a = b + CycleMoveLeft((a + DEF_H(b,c,d) + Mj + ti),s));
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#define II(a, b, c, d, Mj, s, ti) (a = b + CycleMoveLeft((a + DEF_I(b,c,d) + Mj + ti),s));
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#pragma once
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class Md5Encode {
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public:
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// 4<><34>ѭ<EFBFBD><D1AD><EFBFBD>㷨
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struct ParamDynamic{
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UInt32 ua_;
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UInt32 ub_;
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UInt32 uc_;
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UInt32 ud_;
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UInt32 va_last_;
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UInt32 vb_last_;
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UInt32 vc_last_;
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UInt32 vd_last_;
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};
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public:
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Md5Encode() {
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}
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std::string Encode(std::string src_info);
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protected:
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UInt32 CycleMoveLeft(UInt32 src_num, int bit_num_to_move);
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UInt32 FillData(const char *in_data_ptr, int data_byte_len, char** out_data_ptr);
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void RoundF(char *data_512_ptr, ParamDynamic & param);
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void RoundG(char *data_512_ptr, ParamDynamic & param);
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void RoundH(char *data_512_ptr, ParamDynamic & param);
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void RoundI(char *data_512_ptr, ParamDynamic & param);
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void RotationCalculate(char *data_512_ptr, ParamDynamic & param);
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std::string GetHexStr(unsigned int num_str);
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private:
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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static const int kA;
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static const int kB;
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static const int kC;
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static const int kD;
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static const unsigned long long k_ti_num_integer;
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};
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#endif
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