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Title : Encrypt/Decrypt string with a given key by using mcrypt module of PHP (suitable to store encrypted data into any type of databases).
Categories : PHP, Encryption Click here to Update Your Picture
NUR-E-ALAM KHAN
Date : Dec 10th 2005
Grade : 4 of 5 (graded 2 times)
Viewed : 7060
File : 4278.php
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Search : More code by NUR-E-ALAM KHAN
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<?php
// Script created by Nur-E-Alam Khan
// Email: porosh@msn.com (Dhaka, Bangladesh)
// Requirment : You need mcrypt module installed and enabled in your server.

function porosh_encrypt($data_input){     

   
$key = "key1";
   
$td = mcrypt_module_open('cast-256', '', 'ecb', '');
   
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
   
mcrypt_generic_init($td, $key, $iv);
   
$encrypted_data = mcrypt_generic($td, $data_input);
   
mcrypt_generic_deinit($td);
   
mcrypt_module_close($td);
   
$encoded_64=base64_encode($encrypted_data);
    return
$encoded_64;
}   


function
porosh_decrypt($encoded_64){
   
$decoded_64=base64_decode($encoded_64);
   
$key = "key1";// same as you used to encrypt
   
$td = mcrypt_module_open('cast-256', '', 'ecb', '');
   
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
   
mcrypt_generic_init($td, $key, $iv);
   
$decrypted_data = mdecrypt_generic($td, $decoded_64);
   
mcrypt_generic_deinit($td);
   
mcrypt_module_close($td);
    return
$decrypted_data;
}

// use:
//$value = porosh_encrypt($data_input);/// For encrypt
//$value = porosh_decrypt($encoded_64);// For Decrypt
// just include those functions with your script

//$input_data is a variable which can be use for the data you need to encrypt.
//$encoded_64 is also a variable which  will be used to store the data after 
//it's encrypted and then encoded with the base64_encode() function.
?>



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