encrypt and decryption in codeigniter stack overflow
Note* : You might require to load driver if no driver is loaded $this->encryption->initialize( array( 'driver' => 'openssl', 'cipher' => 'aes-256', 'mode' => 'ctr' ) ); STEP 1: Load a encryption library $this->load->library('encryption'); STEP 2: Create a encryption key for a config file application/config/config.php $this->encryption->create_key(16); ############### OR ############# bin2hex($this->encryption->create_key(16)); // For more user friendly cipher text Add this key inside the config file $config['encryption_key'] = hex2bin(<your hex-encoded key>); STEP 3: For encypt a plain text to cipher text $plain_text = 'This is a plain-text message!'; $ciphertext = $this->encryption->encrypt($plain_text); STEP 4: Decrypt Cipher text to plain text // Outputs: This is a plain-text message! echo $this->encryption->decrypt($ciphertext);
