Caesar Cipher Algorithm in C

This blog is about implementation of Caesar cipher algorithm in c.

Hope that this will help to understand the concept of Caesar cipher algorithm.

For any query regarding c/c++ concept please contact me at khimanichirag@gmail.com

     #include<stdio.h>  
     #include<conio.h>  
     #include<string.h>  
     #include<graphics.h>  
     void main()  
     {  
           int key,i;  
          char data[30];  
          clrscr();  
          printf("\nEnter the plain text: ");  
          gets(data);  
          printf("\nEnter the key value: ");  
          scanf("%d",&key);  
         for(i=0;i<strlen(data);i++)  
         {     
               if(data[i]!=' ')   
              {  
                   if(data[i]>= data[strlen(data)-1-key])  
                   {  
                       data[i]=data[i]-26;  
                   }  
                   data[i]=data[i]+key;  
              }  
         }  
          printf("Your cipher text is: %s",data);  
          getch();  
     }