Encryption And Decryption PHP

Encryption And Decryption

This Is The Most Secure Way To Encrypt And Decrypt Your Data .
It Is Almost Impossible To Crack Your Encryption .

Create Two Random Keys And Save Them In Your Configuration File

<?php
// Create The First Key
echo base64_encode(openssl_random_pseudo_bytes(32));

// Create The Second Key
echo base64_encode(openssl_random_pseudo_bytes(64));
?>

<?php
// Save The Keys In Your Configuration File
define('FIRSTKEY','Lk5Uz3slx3BrAghS1aaW5AYgWZRV0tIX5eI0yPchFz4=');
define('SECONDKEY','EZ44mFi3TlAey1b2w4Y7lVDuqO+SRxGXsa7nctnr/JmMrA2vN6EJhrvdVZbxaQs5jpSe34X3ejFK/o9+Y5c83w==');
?>

<?php
function secured_encrypt($data)
{
$first_key = base64_decode(FIRSTKEY);
$second_key = base64_decode(SECONDKEY);

$method = "aes-256-cbc";
$iv_length = openssl_cipher_iv_length($method);
$iv = openssl_random_pseudo_bytes($iv_length);

$first_encrypted = openssl_encrypt($data,$method,$first_key, OPENSSL_RAW_DATA ,$iv);
$second_encrypted = hash_hmac('sha3-512', $first_encrypted, $second_key, TRUE);

$output = base64_encode($iv.$second_encrypted.$first_encrypted);
return $output;
}
?>

<?php
function secured_decrypt($input)
{
$first_key = base64_decode(FIRSTKEY);
$second_key = base64_decode(SECONDKEY);
$mix = base64_decode($input);

$method = "aes-256-cbc";
$iv_length = openssl_cipher_iv_length($method);

$iv = substr($mix,0,$iv_length);
$second_encrypted = substr($mix,$iv_length,64);
$first_encrypted = substr($mix,$iv_length+64);

$data = openssl_decrypt($first_encrypted,$method,$first_key,OPENSSL_RAW_DATA,$iv);
$second_encrypted_new = hash_hmac('sha3-512', $first_encrypted, $second_key, TRUE);

if (hash_equals($second_encrypted,$second_encrypted_new))
return $data;

return false;
}
?>