public function decrypt($string, $encryption_key = null)
{
$string = (string) $string;
$encryption_key = $encryption_key === null ? $this->key : (string) $encryption_key;
$old_key_size = GibberishAES::size();
GibberishAES::size(256);
$result = GibberishAES::dec($string, $encryption_key);
GibberishAES::size($old_key_size);
return $result;
}
public function testEncryptionWith256BitKeySize()
{
GibberishAES::size(256);
foreach ($this->examples as $example) {
$encrypted = GibberishAES::enc($example, $this->passPhrase);
$this->assertEquals($example, GibberishAES::dec($encrypted, $this->passPhrase));
}
GibberishAES::size("256");
foreach ($this->examples as $example) {
$encrypted = GibberishAES::enc($example, $this->passPhrase);
$this->assertEquals($example, GibberishAES::dec($encrypted, $this->passPhrase));
}
}
public function ajax_decryption_test()
{
$this->output->set_header('Content-Type: application/json; charset=utf-8', true);
$pass = $this->pass;
$encrypted_secret_string_256 = $this->input->post('encrypted_secret_string_256');
$encrypted_secret_string_192 = $this->input->post('encrypted_secret_string_192');
$encrypted_secret_string_128 = $this->input->post('encrypted_secret_string_128');
$old_key_size = GibberishAES::size();
GibberishAES::size(256);
$decrypted_secret_string_256 = GibberishAES::dec($encrypted_secret_string_256, $pass);
GibberishAES::size(192);
$decrypted_secret_string_192 = GibberishAES::dec($encrypted_secret_string_192, $pass);
GibberishAES::size(128);
$decrypted_secret_string_128 = GibberishAES::dec($encrypted_secret_string_128, $pass);
GibberishAES::size($old_key_size);
$this->output->set_output(json_encode(compact('decrypted_secret_string_256', 'decrypted_secret_string_192', 'decrypted_secret_string_128')));
}