Adyen - Unable to decrypt data

Question

Hi i am trying to integrate adyen payment gateway in my project. I have used following PHP SDK Adyen PHP SDK

i have followed the steps mentioned in the sdk to generate client side encryption and passed those encrypted value to server side to perform payment. But i was stuck with a error message "Unable to Decrypt data"

Following is my sample code,

Frontend :

<script type="text/javascript" src="https://test.adyen.com/hpp/cse/js/MY_LIBRARY_TOKEN.shtml"></script>
  <form method="POST"  id="adyen-encrypted-form">
    <input placeholder="number" type="text" size="20" data-encrypted-name="number" value="2223520443560010" />
    <input placeholder="holderName" type="text" size="20" data-encrypted-name="holderName" value="Ashok" />
    <input placeholder="expiryMonth" type="text" size="2" data-encrypted-name="expiryMonth" value="10" />
    <input placeholder="expiryYear" type="text" size="4" data-encrypted-name="expiryYear" value="2020" />
    <input placeholder="cvc" type="text" size="4" data-encrypted-name="cvc" value="737" />
    <input type="hidden" value="<?php echo date('Y-m-d\TH:i:sO'); ?>" data-encrypted-name="generationtime"/>
    <input type="submit" value="Pay"/>
 </form>

<script>
    // The form element to encrypt.
    var form = document.getElementById('adyen-encrypted-form');

    var options = {};
    // Bind encryption options to the form.
    var encryptedBlobFieldName = "myFieldName";
    options.name = encryptedBlobFieldName;
    options.onsubmit = function(e) {
        var encryptedData = form.elements[encryptedBlobFieldName].value;
        // Encrypted form detials
        console.log(encryptedData);
        e.preventDefault();
    };
var result = adyen.createEncryptedForm(form, options);
</script>

I get the encrypted value from above submit action with the test deails as i have populated in the form. (i.e) encryptedData

Server Code :

$client = new \Adyen\Client();
$client->setApplicationName("Adyen PHP Api Library Example");
$client->setUsername("WS_USERNAME");
$client->setPassword("WS_USER_PASSWORD");
$client->setEnvironment(\Adyen\Environment::TEST);
$service = new \Adyen\Service\Payment($client);
$result = $service->authorise($params);

Following is the values i pass to authorise method,

Array(
[amount] => Array
    (
        [value] => 19
        [currency] => GBP
    )

[reference] => payment-test
[merchantAccount] => MERCHANT_ACCOUNT_CODE
[additionalData] => Array
    (
        [card.encrypted.json] => 'ENCRYPTED_DATA_FROM_FRONT_END'
    )
)

Am not sure what am i doing wrong, from the server side i receive a error as unable to decrypt the data. Please assist me to resolve this issue

Answer 1

I found the problem. The problem is after generating the token from frontend via CSE i have passed those values to server side via GET api. So there is some additional characters added in the encrypted string. (the data passed in url was encrypted using url encryption) .

I have changed the server API method to post and it worked perfectly.