Source Code: (back to article)

<?php

// Storing a string into the variable which
// needs to be Encrypted
$simple_string = "Welcome to W3docs\n";

// Displaying the original string
echo "Original String: " . $simple_string;

// Storingthe cipher method
$ciphering = "AES-128-CTR";

// Using OpenSSl Encryption method
$iv_length = openssl_cipher_iv_length($ciphering);
$options = 0;

// Non-NULL Initialization Vector for encryption
$encryption_iv = '1234567891011121';

// Storing the encryption key
$encryption_key = "W3docs";

// Using openssl_encrypt() function to encrypt the data
$encryption = openssl_encrypt($simple_string, $ciphering, $encryption_key, $options, $encryption_iv);

// Displaying the encrypted string
echo "Encrypted String: " . $encryption . "\n";

// Non-NULL Initialization Vector for decryption
$decryption_iv = '1234567891011121';

// Storing the decryption key
$decryption_key = "W3docs";

// Using openssl_decrypt() function to decrypt the data
$decryption = openssl_decrypt($encryption, $ciphering, $decryption_key, $options, $decryption_iv);

// Displaying the decrypted string
echo "Decrypted String: " . $decryption;

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