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Editing: Crypto.php

<?php

namespace App\Ccavenue;

class Crypto
{

function encrypt($plainText, $key)
	{
		$key = $this->hextobin(md5($key));
		$initVector = pack("C*", 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
		$openMode = openssl_encrypt($plainText, 'AES-128-CBC', $key, OPENSSL_RAW_DATA, $initVector);
		$encryptedText = bin2hex($openMode);
		return $encryptedText;
	}

/*
* @param1 : Encrypted String
* @param2 : Working key provided by CCAvenue
* @return : Plain String
*/
	function decrypt($encryptedText, $key)
	{
		$key = $this->hextobin(md5($key));
		$initVector = pack("C*", 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f);
		$encryptedText = $this->hextobin($encryptedText);
		$decryptedText = openssl_decrypt($encryptedText, 'AES-128-CBC', $key, OPENSSL_RAW_DATA, $initVector);
		return $decryptedText;
	}

function hextobin($hexString)
	{
		$length = strlen($hexString);
		$binString = "";
		$count = 0;
		while ($count < $length) {
			$subString = substr($hexString, $count, 2);
			$packedString = pack("H*", $subString);
			if ($count == 0) {
				$binString = $packedString;
			} else {
				$binString .= $packedString;
			}

$count += 2;
		}
		return $binString;
	}
}

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Name	Type	Actions
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📄 Crypto.php	FILE	[EDIT]
📄 ccavRequestHandler.php	FILE	[EDIT]
📄 ccavResponseHandler.php	FILE	[EDIT]

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Editing: Crypto.php