rail_deviceid_C和C ++中的Rail Fence密码程序[加密和解密]
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字形形式写在矩阵中，该矩阵的总行数=**，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)
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#include<stdio.h>
#include<string.h>
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;
}
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#include<stdio.h>
#include<string.h>
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 ;
}
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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++)
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#include<iostream>
#include<string.h>
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<<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;
cout<<"\nDecrypted Message: ";
for(i = 0; i < msgLen; ++i){
cout<<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;
cout<<"Original Message: "<<msg;
encryptMsg(msg, key);
decryptMsg(enMsg, key);
return 0;
}
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#include<iostream>
#include<string.h>
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 << 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 ;
cout << "\nDecrypted Message: " ;
for ( i = 0 ; i < msgLen ; ++ i ) {
cout << 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 ;
cout << "Original Message: " << msg ;
encryptMsg ( msg , key ) ;
decryptMsg ( enMsg , key ) ;
return 0 ;
}
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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: https://www.thecrazyprogrammer.com/2017/09/rail-fence-cipher-program-in-c.html
rail_deviceid