Encrypt and decrypt string using AES algorithm executed by PHP script is given below:
Below is output:
Original=Value to be encrypt
Encrypted=fyqhmBCGLVXcT5tvq38G/MAlpgP2FYq29wgC7KIMT8jt6Z45cq63oJeY8kGgv9QP
Decrypted=Value to be encrypt
<?php function encrypt($key, $to_encrypt) { $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); $iv = mcrypt_create_iv($iv_size, MCRYPT_DEV_URANDOM); $pad = $iv_size - (strlen($to_encrypt) % $iv_size); $to_encrypt = str_pad($to_encrypt, ($iv_size * (floor(strlen($to_encrypt) / $iv_size) + 1)), chr($pad)); return base64_encode($iv . mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $to_encrypt, MCRYPT_MODE_CBC, $iv)); } function decrypt($key, $to_decrypt) { $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); $iv = substr($to_decrypt, 0, $iv_size); $to_decrypt = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, substr($to_decrypt, $iv_size), MCRYPT_MODE_CBC, $iv); $pad = ord($to_decrypt[strlen($to_decrypt) - 1]); return substr($to_decrypt, 0, -$pad); } $key = "1111111111111111"; $str = "Value to be encrypt"; $enc = encrypt($key, $str); $dec = decrypt($key, base64_decode($enc)); echo "Original=" . $str; echo "<BR>Encrypted=" . $enc; echo "<BR>Decrypted=" . $dec;
Below is output:
Original=Value to be encrypt
Encrypted=fyqhmBCGLVXcT5tvq38G/MAlpgP2FYq29wgC7KIMT8jt6Z45cq63oJeY8kGgv9QP
Decrypted=Value to be encrypt
Nice...
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