diff --git a/3rnd.cpp b/3rnd.cpp
new file mode 100644
index 0000000..cd7a313
--- /dev/null
+++ b/3rnd.cpp
@@ -0,0 +1,763 @@
+#include<iostream>
+#include<cstdlib>
+#include<stdio.h>
+#include<cstring>
+#include<fstream>
+int E[48] = { 32,1,2,3,4,5,4,5,6,7,8,9,8,9,10,11,12,13,12,13,14,15,16,17,16,17,18,19,20,21,20,21,22,23,24,25,24,25,26,27,28,29,28,29,30,31,32,1 };
+int Pc[32] = { 9,17,23,31,13,28,2,18,24,16,30,6,26,20,10,1,8,14,25,3,4,29,11,19,32,12,22,7,5,27,15,21 };
+int PC1c[64] = { 8,16,24,56,52,44,36,57,7,15,23,55,51,43,35,58,6,14,22,54,50,42,34,59,5,13,21,53,49,41,33,60,4,12,20,28,48,40,32,61,3,11,19,27,47,39,31,62,2,10,18,26,46,38,30,63,1,9,17,25,45,37,29,64 };
+int PCr[48] = { 14,17,11,24,1,5,3,28,15,6,21,10,23,19,12,4,26,8,16,7,27,20,13,2,41,52,31,37,47,55,30,40,51,45,33,48,44,49,39,56,34,53,46,42,50,36,29,32 };
+int P[32] = { 16,7,20,21,29,12,28,17,1,15,23,26,5,18,31,10,2,8,24,14,32,27,3,9,19,13,30,6,22,11,4,25 };
+int S[8][4][16] = { {{14,4,13,1,2,15,11,8,3,10,6,12,5,9,0,7},{0,15,7,4,14,2,13,1,10,6,12,11,9,5,3,8},{4,1,14,8,13,6,2,11,15,12,9,7,3,10,5,0},{15,12,8,2,4,9,1,7,5,11,3,14,10,0,6,13}}\
+    ,{{15,1,8,14,6,11,3,4,9,7,2,13,12,0,5,10},{3,13,4,7,15,2,8,14,12,0,1,10,6,9,11,5},{0,14,7,11,10,4,13,1,5,8,12,6,9,3,2,15},{13,8,10,1,3,15,4,2,11,6,7,12,0,5,14,9}}\
+    ,{{10,0,9,14,6,3,15,5,1,13,12,7,11,4,2,8},{13,7,0,9,3,4,6,10,2,8,5,14,12,11,15,1},{13,6,4,9,8,15,3,0,11,1,2,12,5,10,14,7},{1,10,13,0,6,9,8,7,4,15,14,3,11,5,2,12}}\
+    ,{{7,13,14,3,0,6,9,10,1,2,8,5,11,12,4,15},{13,8,11,5,6,15,0,3,4,7,2,12,1,10,14,9},{10,6,9,0,12,11,7,13,15,1,3,14,5,2,8,4},{3,15,0,6,10,1,13,8,9,4,5,11,12,7,2,14}}\
+    ,{{2,12,4,1,7,10,11,6,8,5,3,15,13,0,14,9},{14,11,2,12,4,7,13,1,5,0,15,10,3,9,8,6},{4,2,1,11,10,13,7,8,15,9,12,5,6,3,0,14},{11,8,12,7,1,14,2,13,6,15,0,9,10,4,5,3}}\
+    ,{{12,1,10,15,9,2,6,8,0,13,3,4,14,7,5,11},{10,15,4,2,7,12,9,5,6,1,13,14,0,11,3,8},{9,14,15,5,2,8,12,3,7,0,4,10,1,13,11,6},{4,3,2,12,9,5,15,10,11,14,1,7,6,0,8,13}}\
+    ,{{4,11,2,14,15,0,8,13,3,12,9,7,5,10,6,1},{13,0,11,7,4,9,1,10,14,3,5,12,2,15,8,6},{1,4,11,13,12,3,7,14,10,15,6,8,0,5,9,2},{6,11,13,8,1,4,10,7,9,5,0,15,14,2,3,12}}\
+    ,{{13,2,8,4,6,15,11,1,10,9,3,14,5,0,12,7},{1,15,13,8,10,3,7,4,12,5,6,11,0,14,9,2},{7,11,4,1,9,12,14,2,0,6,10,13,15,3,5,8},{2,1,14,7,4,10,8,13,15,12,9,0,3,5,6,11}}
+};
+int PC2c[56] = { 5,24,7,16,6,10,20,18,49,12,3,15,23,1,9,19,2,50,14,22,11,51,13,4,52,17,21,8,47,31,27,48,35,41,53,46,28,54,39,32,25,44,55,37,34,43,29,36,38,45,33,26,42,56,30,40 };
+using namespace std;
+class hexbin//16进制的数转换为2进制的数
+private:
+    char a[26], count, i, j, e;
+    int bin[16][4];
+public:
+    int c[64];
+    int* bina(int n)
+    {
+        count = 0;
+        cout << "请输入16进制的数" << n << "：";
+        cin >> a;
+        for (i = 0; a[i] != '\0'; i++)//每个字符对应相应的四位的二进制数
+        {
+            switch (a[i])
+            {
+            case'0':
+                bin[i][0] = 0;
+                bin[i][1] = 0;
+                bin[i][2] = 0;
+                bin[i][3] = 0;
+                break;
+            case'1':
+                bin[i][0] = 0;
+                bin[i][1] = 0;
+                bin[i][2] = 0;
+                bin[i][3] = 1;
+                break;
+            case '2':
+                bin[i][0] = 0;
+                bin[i][1] = 0;
+                bin[i][2] = 1;
+                bin[i][3] = 0;
+                break;
+            case '3':
+                bin[i][0] = 0;
+                bin[i][1] = 0;
+                bin[i][2] = 1;
+                bin[i][3] = 1;
+                break;
+            case '4':
+                bin[i][0] = 0;
+                bin[i][1] = 1;
+                bin[i][2] = 0;
+                bin[i][3] = 0;
+                break;
+            case '5':
+                bin[i][0] = 0;
+                bin[i][1] = 1;
+                bin[i][2] = 0;
+                bin[i][3] = 1;
+                break;
+            case '6':
+                bin[i][0] = 0;
+                bin[i][1] = 1;
+                bin[i][2] = 1;
+                bin[i][3] = 0;
+                break;
+            case '7':
+                bin[i][0] = 0;
+                bin[i][1] = 1;
+                bin[i][2] = 1;
+                bin[i][3] = 1;
+                break;
+            case '8':
+                bin[i][0] = 1;
+                bin[i][1] = 0;
+                bin[i][2] = 0;
+                bin[i][3] = 0;
+                break;
+            case '9':
+                bin[i][0] = 1;
+                bin[i][1] = 0;
+                bin[i][2] = 0;
+                bin[i][3] = 1;
+                break;
+            case 'A':
+                bin[i][0] = 1;
+                bin[i][1] = 0;
+                bin[i][2] = 1;
+                bin[i][3] = 0;
+                break;
+            case 'B':
+                bin[i][0] = 1;
+                bin[i][1] = 0;
+                bin[i][2] = 1;
+                bin[i][3] = 1;
+                break;
+            case 'C':
+                bin[i][0] = 1;
+                bin[i][1] = 1;
+                bin[i][2] = 0;
+                bin[i][3] = 0;
+                break;
+            case 'D':
+                bin[i][0] = 1;
+                bin[i][1] = 1;
+                bin[i][2] = 0;
+                bin[i][3] = 1;
+                break;
+            case 'E':
+                bin[i][0] = 1;
+                bin[i][1] = 1;
+                bin[i][2] = 1;
+                bin[i][3] = 0;
+                break;
+            case 'F':
+                bin[i][0] = 1;
+                bin[i][1] = 1;
+                bin[i][2] = 1;
+                bin[i][3] = 1;
+                break;
+            default:
+                exit(-1);
+            }
+            count++;
+        }
+        e = 0;
+        for (i = 0; i < 16; i++) //组合成一个数组
+        {
+            for (j = 0; j < 4; j++)
+            {
+                c[e] = bin[i][j];
+                e++;
+            }
+        }
+        memset(bin, 0, sizeof(int) * 64);//重置数组
+        memset(a, 0, sizeof(char) * 26);
+        return c;
+    }
+};
+class kborn
+{
+private:
+    int i, j, dd, d[56], C[20][28], D[20][28], a, CD[56], c, b, ee, cc, e, bin[8], bina[8], Bbin[8], CDC[56];
+public:
+    int ke[48];
+    int* ki(int qs, int n, int* CDC)
+    {
+        for (j = 0; j < 8; j++) //把值转换为二进制
+        {
+            cc = qs / 2;
+            bin[j] = qs % 2;
+            qs = cc;
+            if (qs == 0)//化到最后都会从2或1化到0
+            {
+                for (dd = j + 1; dd < 8; dd++) //补位添0,成为8bit
+                {
+                    bin[dd] = 0;
+                }
+                for (ee = 7; ee >= 0; ee--)
+                {
+                    bina[7 - ee] = bin[ee];
+                }
+                break;
+            }
+        }
+        for (j = 0; j < 8; j++)
+        {
+            Bbin[j] = bina[j];
+        }
+        CDC[0] = Bbin[0];
+        CDC[12] = Bbin[1];
+        CDC[21] = Bbin[2];
+        CDC[25] = Bbin[3];
+        CDC[29] = Bbin[4];
+        CDC[38] = Bbin[5];
+        CDC[41] = Bbin[6];
+        CDC[46] = Bbin[7];
+        for (i = 0; i < 28; i++)//划分成两段每段28bit
+        {
+            C[0][i] = CDC[i];
+        }
+        for (i = 28; i < 56; i++)
+        {
+            D[0][i - 28] = CDC[i];
+        }
+        for (i = 1; i <= n; i++)//循环移位
+        {
+            if (i == 1 || i == 2)//移一位
+            {
+                a = C[i - 1][0];
+                c = D[i - 1][0];
+                for (j = 0; j < 27; j++)//左循环移位一位
+                {
+                    C[i][j] = C[i - 1][j + 1];
+                    D[i][j] = D[i - 1][j + 1];
+                }
+                C[i][j] = a;
+                D[i][j] = c;
+            }
+            else//移两位
+            {
+                a = C[i - 1][0];
+                b = D[i - 1][0];
+                c = C[i - 1][1];
+                e = D[i - 1][1];
+                for (j = 0; j < 26; j++)//左循环移位两位
+                {
+                    C[i][j] = C[i - 1][j + 2];
+                    D[i][j] = D[i - 1][j + 2];
+                }
+                C[i][j] = a;
+                D[i][j] = b;
+                C[i][j + 1] = c;
+                D[i][j + 1] = e;
+            }
+        }
+        for (j = 0; j < 28; j++)//两个28bit合并为一段56比特
+        {
+            CD[j] = C[i - 1][j];
+        }
+        for (j = 28; j < 56; j++)
+        {
+            CD[j] = D[i - 1][j - 28];
+        }
+        for (j = 0; j < 48; j++)//进行PC-2置换生成密钥
+        {
+            ke[j] = CD[PCr[j] - 1];
+        }
+        return ke;
+    }
+};
+int main()
+{
+    int i, j, e, b, qs, m[64], L[20][32], K[20][48], EA[48], R[20][32], N, a[12][64], m1[64], M[64], CDC[64], L0[12][32], L3[12][32], R3[12][32], EL3[12][48], ELc[6][48], Ec[6][8][6], R3c[6][32], L0c[6][32], R3L0[6][32];
+    int d, CSS, js, hang, lie, dd, ee, jj, CD[56], CDc[56], Cc[6][32], Ccf[6][8][4], bin[6], bina[6], CS, CS1, binar[6], bin1[4], bin2[4], BIN[4], binary[8][64][6], Bbin[6], count[8][64];
+    int cc, C[8], B[48], ges, duis, binbin[8][4], Pt[32], T[32];
+    hexbin hbin;
+    kborn kefe;
+    cout << "请输入要输入明文的对数：";
+    cin >> duis;
+    ges = 2 * duis;
+    cout << "请输入明文：\n";
+    for (j = 0; j < ges; j++) //将16进制明文转换为二进制
+    {
+        int* c = hbin.bina(j + 1);
+        for (i = 0; i < 64; i++)
+        {
+            a[j][i] = c[i];
+        }
+    }
+    for (j = 0; j < ges; j++)
+    {
+        cout << "\n明文" << j + 1 << "是：";
+        for (i = 0; i < 64; i++)
+        {
+            cout << a[j][i];
+            if ((i + 1) == 32)
+                cout << "\t";
+        }
+    }
+    for (i = 0; i < 64; i++)//把第一个明文复制给m1用于穷搜
+    {
+        m1[i] = a[0][i];
+    }
+    for (j = 0; j < ges; j++) //生成L0
+    {
+        for (i = 0; i < 32; i++)
+        {
+            L0[j][i] = a[j][i];
+        }
+    }
+    memset(a, 0, sizeof(int) * 640);
+    cout << endl;
+    cout << "\n请输入密文：\n";
+    for (j = 0; j < ges; j++) //将16进制密文转换为二进制
+    {
+        int* c = hbin.bina(j + 1);
+        for (i = 0; i < 64; i++)
+        {
+            a[j][i] = c[i];
+        }
+    }
+    for (i = 0; i < 64; i++)//把第一个密文复制给m1用于穷搜
+    {
+        M[i] = a[0][i];
+    }
+    for (j = 0; j < ges; j++) //生成L3
+    {
+        cout << "\n密文L" << j + 1 << "是：";
+        for (i = 0; i < 32; i++)
+        {
+            L3[j][i] = a[j][i];
+            cout << L3[j][i];
+        }
+        cout << "\t密文R" << j + 1 << "是：";
+        for (i = 32; i < 64; i++)
+        {
+            R3[j][i - 32] = a[j][i];
+            cout << R3[j][i - 32];
+        }
+    }
+    cout << endl;
+    for (i = 0; i < ges; i++) //进行E扩展置换
+    {
+        cout << "\n进行E扩展置换后的值ER" << i + 1 << "是：";
+        for (j = 0; j < 48; j++)
+        {
+            EL3[i][j] = L3[i][E[j] - 1];
+            cout << EL3[i][j];
+        }
+    }
+    cout << endl;
+    for (i = 0; i < ges;) //计算输入差分
+    {
+        for (j = 0; j < 48; j++)
+        {
+            if (EL3[i][j] == EL3[i + 1][j])
+                ELc[i / 2][j] = 0;
+            else
+                ELc[i / 2][j] = 1;
+        }
+        i = i + 2;
+    }
+    for (i = 0; i < duis; i++)
+    {
+        cout << "\n第" << i + 1 << "对输入异或是：";
+        for (j = 0; j < 48; j++)
+        {
+            cout << ELc[i][j];
+        }
+    }
+    for (i = 0; i < duis; i++) //分组，每组6bit
+    {
+        for (j = 0; j < 48;)
+        {
+            for (e = 0; e < 6; e++)
+            {
+                Ec[i][j / 6][e] = ELc[i][e + j];
+            }
+            j = j + 6;
+        }
+    }
+    for (i = 0; i < ges;) //计算差分R3c
+    {
+        for (j = 0; j < 32; j++)
+        {
+            if (R3[i][j] == R3[i + 1][j])
+                R3c[i / 2][j] = 0;
+            else
+                R3c[i / 2][j] = 1;
+        }
+        i = i + 2;
+    }
+    for (i = 0; i < ges;) //计算差分L0c
+    {
+        for (j = 0; j < 32; j++)
+        {
+            if (L0[i][j] == L0[i + 1][j])
+                L0c[i / 2][j] = 0;
+            else
+                L0c[i / 2][j] = 1;
+        }
+        i = i + 2;
+    }
+    for (i = 0; i < duis; i++) //计算R3c和L0c的差分
+    {
+        for (j = 0; j < 32; j++)
+        {
+            if (R3c[i][j] == L0c[i][j])
+                R3L0[i][j] = 0;
+            else
+                R3L0[i][j] = 1;
+        }
+    }
+    for (i = 0; i < duis; i++) //P逆置换计算输出差分Cc
+    {
+        for (j = 0; j < 32; j++)
+        {
+            Cc[i][j] = R3L0[i][Pc[j] - 1];
+        }
+    }
+    cout << endl;
+    for (i = 0; i < duis; i++) //P逆置换计算输出差分Cc
+    {
+        cout << "\n第" << i + 1 << "对输出异或是：";
+        for (j = 0; j < 32; j++)
+        {
+            cout << Cc[i][j];
+        }
+    }
+    for (i = 0; i < duis; i++) //分组，每组4bit
+    {
+        for (j = 0; j < 32;)
+        {
+            for (e = 0; e < 4; e++)
+            {
+                Ccf[i][j / 4][e] = Cc[i][e + j];
+            }
+            j = j + 4;
+        }
+    }
+    cout << endl;
+    for (i = 0; i < duis; i++) //分段输出 输入异或
+    {
+        cout << "\n第" << i + 1 << "对输入异或\n";
+        cout << 1 << "\t" << 2 << "\t" << 3 << "\t" << 4 << "\t" << 5 << "\t" << 6 << "\t" << 7 << "\t" << 8 << "\n";
+        for (j = 0; j < 8; j++)
+        {
+            for (e = 0; e < 6; e++)
+            {
+                cout << Ec[i][j][e];
+            }
+            cout << "\t";
+        }
+    }
+    cout << endl;
+    for (i = 0; i < duis; i++) //分段输出 输出异或
+    {
+        cout << "\n第" << i + 1 << "对输出异或\n";
+        cout << 1 << "\t" << 2 << "\t" << 3 << "\t" << 4 << "\t" << 5 << "\t" << 6 << "\t" << 7 << "\t" << 8 << "\n";
+        for (j = 0; j < 8; j++)
+        {
+            for (e = 0; e < 4; e++)
+            {
+                cout << Ccf[i][j][e];
+            }
+            cout << "\t";
+        }
+    }
+    cout << endl;
+    memset(count, 0, sizeof(int) * 512);
+    for (dd = 0; dd < 8; dd++) //依次按照S盒来检验找出合适的输入
+    {
+        for (i = 0; i < 64; i++)//测试输入6bit，循环检验，找出符合IN（）的输入
+        {
+            CSS = i;
+            memset(bina, 0, sizeof(int) * 6);
+            memset(bin, 0, sizeof(int) * 6);
+            memset(Bbin, 0, sizeof(int) * 6);
+            for (j = 0; j < 6; j++) //把值转换为二进制
+            {
+                b = CSS / 2;
+                bin[j] = CSS % 2;
+                CSS = b;
+                if (CSS == 0)//化到最后都会从2或1化到0
+                {
+                    for (d = j + 1; d < 6; d++) //补位添0,成为6bit
+                    {
+                        bin[d] = 0;
+                    }
+                    for (e = 5; e >= 0; e--)
+                    {
+                        bina[5 - e] = bin[e];
+                    }
+                    break;
+                }
+            }
+            for (j = 0; j < 6; j++)
+            {
+                Bbin[j] = bina[j];
+            }
+            memset(bin, 0, sizeof(int) * 6);
+            hang = bina[0] * 2 + bina[5];
+            lie = bina[1] * 8 + bina[2] * 4 + bina[3] * 2 + bina[4];
+            CS = S[dd][hang][lie];
+            memset(bina, 0, sizeof(int) * 6);
+            memset(bin, 0, sizeof(int) * 6);
+            memset(bin1, 0, sizeof(int) * 4);
+            for (j = 0; j < 4; j++) //把值转换为二进制
+            {
+                b = CS / 2;
+                bin[j] = CS % 2;
+                CS = b;
+                if (CS == 0)//化到最后都会从2或1化到0
+                {
+                    for (d = j + 1; d < 4; d++) //补位添0,成为4bit
+                    {
+                        bin[d] = 0;
+                    }
+                    for (e = 3; e >= 0; e--)
+                    {
+                        bina[3 - e] = bin[e];
+                    }
+                    break;
+                }
+            }
+            for (j = 0; j < 4; j++)
+            {
+                bin1[j] = bina[j];
+            }
+            for (jj = 0; jj < duis; jj++)//检验不同对的值
+            {
+                for (j = 0; j < 6; j++) //输入和输入异或两者异或
+                {
+                    if (Bbin[j] == Ec[jj][dd][j])
+                        binar[j] = 0;
+                    else
+                        binar[j] = 1;
+                }
+                hang = binar[0] * 2 + binar[5];
+                lie = binar[1] * 8 + binar[2] * 4 + binar[3] * 2 + binar[4];
+                CS1 = S[dd][hang][lie];
+                memset(bin2, 0, sizeof(int) * 4);
+                memset(bin, 0, sizeof(int) * 6);
+                memset(bina, 0, sizeof(int) * 6);
+                for (j = 0; j < 4; j++) //把值转换为二进制
+                {
+                    b = CS1 / 2;
+                    bin[j] = CS1 % 2;
+                    CS1 = b;
+                    if (CS1 == 0)//化到最后都会从2或1化到0
+                    {
+                        for (d = j + 1; d < 4; d++) //补位添0,成为4bit
+                        {
+                            bin[d] = 0;
+                        }
+                        for (e = 3; e >= 0; e--)
+                        {
+                            bina[3 - e] = bin[e];
+                        }
+                        break;
+                    }
+                }
+                for (j = 0; j < 4; j++)
+                {
+                    bin2[j] = bina[j];
+                }
+                memset(BIN, 0, sizeof(int) * 4);
+                for (j = 0; j < 4; j++)
+                {
+                    if (bin1[j] == bin2[j])
+                        BIN[j] = 0;
+                    else
+                        BIN[j] = 1;
+                }
+                if ((BIN[0] == Ccf[jj][dd][0]) && (BIN[1] == Ccf[jj][dd][1]) && (BIN[2] == Ccf[jj][dd][2]) && (BIN[3] == Ccf[jj][dd][3]))//判断是不是满足IN的条件
+                {
+                    for (j = 0; j < 6; j++)
+                    {
+                        if (Bbin[j] == EL3[2 * jj][(dd * 6 + j)])//满足的话和Ei异或得到密钥
+                            binary[dd][i][j] = 0;
+                        else
+                            binary[dd][i][j] = 1;
+                    }
+                    js = binary[dd][i][0] * 32 + binary[dd][i][1] * 16 + binary[dd][i][2] * 8 + binary[dd][i][3] * 4 + binary[dd][i][4] * 2 + binary[dd][i][5];
+                    count[dd][js] = count[dd][js] + 1;//计数器，计算可能密钥出现的位置和次数
+                }
+            }
+        }
+    }
+    cout << endl;
+    for (dd = 0; dd < 8; dd++)
+    {
+        cout << "\n\nS" << dd + 1 << ":\n";
+        for (i = 0; i < 64; i++)
+        {
+            cout << count[dd][i];
+            if ((i + 1) % 16 == 0)
+                cout << "\n";
+        }
+    }
+    cout << endl << "得到的第3轮加密的48bit密钥为：\n";
+    for (dd = 0; dd < 8; dd++)//输出二进制结果
+    {
+        for (i = 0; i < 64; i++)
+        {
+            if (count[dd][i] == duis)
+            {
+                CSS = i;
+                for (j = 0; j < 6; j++) //把值转换为二进制
+                {
+                    b = CSS / 2;
+                    bin[j] = CSS % 2;
+                    CSS = b;
+                    if (CSS == 0)//化到最后都会从2或1化到0
+                    {
+                        for (d = j + 1; d < 6; d++) //补位添0,成为6bit
+                        {
+                            bin[d] = 0;
+                        }
+                        for (e = 5; e >= 0; e--)
+                        {
+                            bina[5 - e] = bin[e];
+                        }
+                        break;
+                    }
+                }
+                for (e = 0; e < 6; e++)
+                {
+                    cout << bina[e];
+                }
+                cout << "\t";
+            }
+        }
+        for (jj = 0; jj < 6; jj++)//合并为一个数组
+        {
+            CDc[(jj + 6 * dd)] = bina[jj];
+        }
+    }
+    for (i = 48; i < 56; i++)//赋值给数组以便逆置换得到56bit的中间密钥
+    {
+        CDc[i] = 6;
+    }
+    for (i = 0; i < 56; i++)//PC2逆置换得到中间值
+    {
+        CD[i] = CDc[PC2c[i] - 1];
+    }
+    dd = CD[27];
+    jj = CD[26];
+    e = CD[25];
+    CSS = CD[24];
+    for (i = 27; i >= 4; i--)
+    {
+        CD[i] = CD[i - 4];
+    }
+    CD[3] = dd;
+    CD[2] = jj;
+    CD[1] = e;
+    CD[0] = CSS;
+    dd = CD[55];
+    jj = CD[54];
+    e = CD[53];
+    CSS = CD[52];
+    for (i = 55; i >= 32; i--)
+    {
+        CD[i] = CD[i - 4];
+    }
+    CD[31] = dd;
+    CD[30] = jj;
+    CD[29] = e;
+    CD[28] = CSS;
+    cout << endl << "最初加密的56bit密钥为：\n";
+    for (i = 0; i < 56; i++)
+    {
+        cout << CD[i];
+        if ((i + 1) % 14 == 0)
+            cout << "\t";
+    }
+    for (i = 0; i < 56; i++)
+    {
+        CDC[i] = CD[i];
+    }
+    //分成两段每段32bit
+    for (i = 0; i < 32; i++)
+    {
+        L[0][i] = m1[i];
+    }
+    for (i = 32; i < 64; i++)
+    {
+        R[0][i - 32] = m1[i];
+    }
+    for (qs = 0; qs < 256; qs++)
+    {
+        for (N = 1; N <= 3; N++)
+        {
+            int* ke = kefe.ki(qs, N, CDC);//生成48bit的密钥
+            for (i = 0; i < 48; i++)
+            {
+                K[N][i] = ke[i];
+            }
+            for (i = 0; i < 32; i++) //把下一轮的L求出来
+            {
+                L[N][i] = R[N - 1][i];
+            }
+            for (i = 0; i < 48; i++) //将32比特R扩展成48比特
+            {
+                EA[i] = R[N - 1][E[i] - 1];
+            }
+            for (i = 0; i < 48; i++) //EA和K异或操作
+            {
+                if (EA[i] == K[N][i])
+                    B[i] = 0;
+                else
+                    B[i] = 1;
+            }
+            for (i = 0; i < 48;) //求出Ci的值，并化为4bit的值，最终合并为一个32bit
+            {
+                hang = B[i] * 2 + B[i + 5];
+                lie = B[i + 1] * 8 + B[i + 2] * 4 + B[i + 3] * 2 + B[i + 4];
+                C[i / 6] = S[i / 6][hang][lie];
+                i = i + 6;
+            }
+            for (j = 0; j < 8; j++)
+            {
+                e = C[j];
+                for (i = 0; i < 4; i++) //把ASCII值转换为二进制
+                {
+                    b = e / 2;
+                    binbin[j][i] = e % 2;
+                    e = b;
+                    if (e == 0)//化到最后都会从2或1化到0
+                    {
+                        for (cc = i + 1; cc < 4; cc++) //补位添0,成为4bit
+                        {
+                            binbin[j][cc] = 0;
+                        }
+                        break;
+                    }
+                }
+            }
+            cc = 0;
+            for (j = 0; j < 8; j++) //32比特记录到一个数组中
+            {
+                for (i = 3; i >= 0; i--)
+                {
+                    Pt[cc] = binbin[j][i];
+                    cc++;
+                }
+            }
+            for (i = 0; i < 32; i++) //P置换退出f函数
+            {
+                T[i] = Pt[P[i] - 1];
+            }
+            for (i = 0; i < 32; i++) //L(i-1)和f函数输出异或操作得到Ri
+            {
+                if (T[i] == L[N - 1][i])
+                    R[N][i] = 0;
+                else
+                    R[N][i] = 1;
+            }
+        }
+        if ((M[0] == L[3][0]) && (M[1] == L[3][1]) && (M[2] == L[3][2]) && (M[3] == L[3][3]) && (M[4] == L[3][4]) && (M[5] == L[3][5]) && (M[6] == L[3][6]) && (M[7] == L[3][7]) && (M[8] == L[3][8]) && (M[9] == L[3][9]) && (M[10] == L[3][10]) && (M[11] == L[3][11]) && (M[12] == L[3][12]) && (M[13] == L[3][13])\
+            && (M[14] == L[3][14]) && (M[15] == L[3][15]) && (M[16] == L[3][16]) && (M[17] == L[3][17]) && (M[18] == L[3][18]) && (M[19] == L[3][19]) && (M[20] == L[3][20]) && (M[21] == L[3][21]) && (M[22] == L[3][22]) && (M[23] == L[3][23]) && (M[24] == L[3][24]) && (M[25] == L[3][25]) && (M[26] == L[3][26])\
+            && (M[27] == L[3][27]) && (M[28] == L[3][28]) && (M[29] == L[3][29]) && (M[30] == L[3][30]) && (M[31] == L[3][31]) && (M[32] == R[3][0]) && (M[33] == R[3][1]) && (M[34] == R[3][2]) && (M[35] == R[3][3]) && (M[36] == R[3][4]) && (M[37] == R[3][5]) && (M[38] == R[3][6]) && (M[39] == R[3][7])\
+            && (M[40] == R[3][8]) && (M[41] == R[3][9]) && (M[42] == R[3][10]) && (M[43] == R[3][11]) && (M[44] == R[3][12]) && (M[45] == R[3][13]) && (M[46] == R[3][14]) && (M[47] == R[3][15]) && (M[48] == R[3][16]) && (M[49] == R[3][17]) && (M[50] == R[3][18]) && (M[51] == R[3][19]) && (M[52] == R[3][20])\
+            && (M[53] == R[3][21]) && (M[54] == R[3][22]) && (M[55] == R[3][23]) && (M[56] == R[3][24]) && (M[57] == R[3][25]) && (M[58] == R[3][26]) && (M[59] == R[3][27]) && (M[60] == R[3][28]) && (M[61] == R[3][29]) && (M[62] == R[3][30]) && (M[63] == R[3][31]))
+            break;
+    }
+    CDC[56] = 6;
+    CDC[57] = 6;
+    CDC[58] = 6;
+    CDC[59] = 6;
+    CDC[60] = 6;
+    CDC[61] = 6;
+    CDC[62] = 6;
+    CDC[63] = 6;
+    for (i = 0; i < 64; i++)
+    {
+        m[i] = CDC[PC1c[i] - 1];
+    }
+    cout << "\n\n\t\t穷搜得到64bit的密钥为：\n";
+    for (i = 0; i < 64; i++)
+    {
+        cout << m[i];
+        if ((i + 1) % 4 == 0)
+            cout << "\t";
+    }
+    cout << "\n\t\t最后按照每一个字节含有奇数个1补全，就可以得到最终密钥！\n";
+    system("PAUSE");
+    return 0;
+}