feat: added project files

aes.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <string.h>
+#include <stdio.h>
+
+class AES {
+
+public:
+    AES();
+    AES(const unsigned char *key);
+    virtual ~AES();
+    void encrypt(const unsigned char data[16], unsigned char out[16]);
+    void decrypt(const unsigned char data[16], unsigned char out[16]);
+
+private:
+    //
+    int mNb;
+
+    //word length of the secret key used in one turn 
+    int mNk;
+
+    //number of turns
+    int mNr;
+
+    //the secret key,which can be 16bytes，24bytes or 32bytes
+    unsigned char mKey[32];
+
+    //the extended key,which can be 176bytes,208bytes,240bytes
+    unsigned char mW[60][4];
+
+    static unsigned char sBox[];
+    static unsigned char invSBox[];
+    //constant 
+    static unsigned char rcon[];
+    void setKey(const unsigned char *key);
+
+    void subBytes(unsigned char state[][4]);
+    void shiftRows(unsigned char state[][4]);
+    void mixColumns(unsigned char state[][4]);
+    void addRoundKey(unsigned char state[][4], unsigned char w[][4]);
+
+    void invSubBytes(unsigned char state[][4]);
+    void invShiftRows(unsigned char state[][4]);
+    void invMixColumns(unsigned char state[][4]);
+
+    void keyExpansion();
+
+    //
+    unsigned char GF28Multi(unsigned char s, unsigned char a);
+
+    void rotWord(unsigned char w[]);
+    void subWord(unsigned char w[]);
+
+    //get the secret key
+    void getKeyAt(unsigned char key[][4],int i);
+
+};