rail_deviceid

Here you will get rail fence cipher program in C and C++ for encryption and decryption.

在这里，您将获得用于加密和解密的C和C ++的Rail fence密码程序。

It is a kind of transposition cipher which is also known as zigzag cipher. Below is an example.

这是一种换位密码，也称为之字形密码。 下面是一个例子。

Here Key = 3. For encryption we write the message diagonally in zigzag form in a matrix having total rows = key and total columns = message length. Then read the matrix row wise horizontally to get encrypted message.

这里的Key =3。为进行加密，我们将消息对角地以Z字形写在矩阵中，该矩阵的总行数=密钥，总列数=消息长度。 然后水平读取矩阵行以获取加密的消息。

C语言的围栏密码程序 (Rail Fence Cipher Program in C)

#include
    
     #include
     
       void encryptMsg(char msg[], int key){    int msgLen = strlen(msg), i, j, k = -1, row = 0, col = 0;    char railMatrix[key][msgLen];     for(i = 0; i < key; ++i)        for(j = 0; j < msgLen; ++j)            railMatrix[i][j] = '\n';     for(i = 0; i < msgLen; ++i){        railMatrix[row][col++] = msg[i];         if(row == 0 || row == key-1)            k= k * (-1);         row = row + k;    }     printf("\nEncrypted Message: ");     for(i = 0; i < key; ++i)        for(j = 0; j < msgLen; ++j)            if(railMatrix[i][j] != '\n')                printf("%c", railMatrix[i][j]);} void decryptMsg(char enMsg[], int key){    int msgLen = strlen(enMsg), i, j, k = -1, row = 0, col = 0, m = 0;    char railMatrix[key][msgLen];     for(i = 0; i < key; ++i)        for(j = 0; j < msgLen; ++j)            railMatrix[i][j] = '\n';     for(i = 0; i < msgLen; ++i){        railMatrix[row][col++] = '*';         if(row == 0 || row == key-1)            k= k * (-1);         row = row + k;    }     for(i = 0; i < key; ++i)        for(j = 0; j < msgLen; ++j)            if(railMatrix[i][j] == '*')                railMatrix[i][j] = enMsg[m++];     row = col = 0;    k = -1;     printf("\nDecrypted Message: ");     for(i = 0; i < msgLen; ++i){        printf("%c", railMatrix[row][col++]);         if(row == 0 || row == key-1)            k= k * (-1);         row = row + k;    }} int main(){    char msg[] = "Hello World";    char enMsg[] = "Horel ollWd";    int key = 3;     printf("Original Message: %s", msg);     encryptMsg(msg, key);    decryptMsg(enMsg, key);     return 0;}
     
    

Output

输出量

Original Message: Hello World Encrypted Message: Horel ollWd Decrypted Message: Hello World

原始消息：Hello World 加密消息：Horel ollWd 解密消息：Hello World

C ++中的Rail Fence密码程序 (Rail Fence Cipher Program in C++)

#include
    
     #include
     
       using namespace std; void encryptMsg(char msg[], int key){    int msgLen = strlen(msg), i, j, k = -1, row = 0, col = 0;    char railMatrix[key][msgLen];     for(i = 0; i < key; ++i)        for(j = 0; j < msgLen; ++j)            railMatrix[i][j] = '\n';     for(i = 0; i < msgLen; ++i){        railMatrix[row][col++] = msg[i];         if(row == 0 || row == key-1)            k= k * (-1);         row = row + k;    }     cout<<"\nEncrypted Message: ";     for(i = 0; i < key; ++i)        for(j = 0; j < msgLen; ++j)            if(railMatrix[i][j] != '\n')                cout<
     
    

Comment below if you have queries related to above rail fence cipher program in C and C++.

如果您对上面的C和C ++围栏密码程序有疑问，请在下面评论。

翻译自:

rail_deviceid