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Appendix A

Appendix A​

Hash is signature rule used either to validate your requests to payment platform or to validate callback from payment platform to your system. It must be md5 encoded string calculated by rules below:

Sale signature​

Hash is calculated by the formula:

_md5(strtoupper(strrev(identifier + order_id + order_amount + order_currency + PASSWORD)));_

Creditvoid signature​

Hash is calculated by the formula:

_md5(strtoupper(strrev(trans_id + PASSWORD)));_

Void signature​

Hash is calculated by the formula:

$hash = md5(strtoupper(strrev($trans_id)) . $PASSWORD);

Credit2Virtual signature​

Hash is calculated by the formula:

$hash = md5(strtoupper(strrev($order_id . $order_amount . $order_currency)) . $PASSWORD);

Debit signature​

Hash is calculated by the formula:

_md5(strtoupper(strrev(identifier + order_id + order_amount + order_currency + PASSWORD)));_

Complete Debit signature​

Hash is calculated by the formula:

$hash = md5(strtoupper(strrev($trans_id)) . $PASSWORD);

GET_TRANS_STATUS signature​

Hash is calculated by the formula:

$hash = md5(strtoupper(strrev($trans_id)) . $PASSWORD);

Callback signature​

Hash is calculated by the formula:

array_walk_recursive($params, static function (&$value) {
    $value = strrev($value);
});
$params['hash'] = md5(strtoupper(convert($params) . PASSWORD));
function convert($params)
{
    foreach ($params as &$value) {
        if (is_array($value)) {
            $value = $this->convert($value);
        }
    }
    ksort($params);
    return implode($params);
}

Sale callback signature​

Hash calculation for notification in S2S APM based on the next formula:
• All parameter values from the callback are used, except for hash;
• Sort values alphabetically by their parameter names;
• Reverse each value individually;
• Concatenate all reversed values together into a single string;
• Convert this string to uppercase;
• Append the password in uppercase to the end of this string;
• Generate the MD5 hash of the resulting string

For example, for callback like this:

result=SUCCESS
amount=9.22
transactions=[ctrans1 = 123, atrans2 =32, itrans2 =325]

formula will be looking like this:

hash = reverse(action) + reverse(amount) + reverse(result) + reverse(transactions.atrans2) + reverse(transactions.ctrans1) + reverse(transactions.itrans2) + PASSWORD

and string_result:

string_result = ELASSSECCUS22.923321523PASSWORD

and hash:

hash = md5(string_result)

Credit2Virtual callback signature​

Hash is calculated by the formula:

$hash = md5(strtoupper(strrev($trans_id . $order_id . $status)) . $PASSWORD);