Omnipay\SmartPay\Message\Crypto

Complexity

Total Complexity

2

Size/Duplication

Total Lines	19
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	encrypt()	0	6	1
A	decrypt()	0	9	1

<?php

namespace Omnipay\SmartPay\Message;
class Crypto
{
    public function encrypt($plainText, $key) {
        $method = "AES-256-GCM";
        $initVector = openssl_random_pseudo_bytes(16);
        $openMode = openssl_encrypt( $plainText, $method, $key, OPENSSL_RAW_DATA, $initVector, $tag );

        return bin2hex( $initVector ).bin2hex( $openMode . $tag );
    }

    public function decrypt($encryptedText, $key) {
        $method = 'AES-256-GCM';
        $encryptedText = hex2bin( $encryptedText );
        $iv_len = $tag_length = 16;
        $iv = substr( $encryptedText, 0, $iv_len );
        $tag = substr( $encryptedText, -$tag_length, $iv_len );
        $ciphertext = substr( $encryptedText, $iv_len, -$tag_length );

        return openssl_decrypt( $ciphertext, $method, $key, OPENSSL_RAW_DATA, $iv, $tag );
    }
}