CREATING REAL WORLD APPLICATIONS

         vegerne cipher encryption and its application in php              now i will make a function in php that will do this job for you.              lets have a look on that function     //function for vegerne cipher decryption function vegerne_decipher($str,$str_passwd) { if(preg_match("/[^a-zA-Z]/", $str_passwd)) { return null; } else { $str_password=strtolower($str_passwd); $pass_arr=array(); $pass_arr_num=array(); $alpha=array('a'=>'1','b'=>'2','c'=>'3','d'=>'4','e'=>'5','f'=>'6','g'=>'7','h'=>'8','i'=>'9','j'=>'10','k'=>'11','l'=>'12','m'=>'13','n'=>'14','o'=>'15','p'=>'16','q'=>'17','r'=>'18...

> 2.Vegerne Cipher- The Vigenère cipher is a method of encrypting alphabetic text by using a series of different Caesar ciphers based on the letters of a keyword. It is a simple form of polyalphabetic substitution. The Vigenère cipher has been reinvented many times. lets look at the image for vegerne ciphers  logic now i will make a function for encription by logic of vegerne cipher function vegerne_cipher($str,$str_passwd) { if(preg_match("/[^a-zA-Z]/", $str_passwd)) { return null; } else { $str_password=strtolower($str_passwd); $pass_arr=array(); $pass_arr_num=array(); $alpha=array('a'=>'1','b'=>'2','c'=>'3','d'=>'4','e'=>'5','f'=>'6','g'=>'7','h'=>'8','i'=>'9','j'=>'10','k'=>'11','l'=>'12','m'=...