"4011",
"VK_VERSION" => "008",
"VK_SND_ID" => "uid100049",
"VK_REPLY" => "3012",
"VK_RETURN" => "https://banks.pastel.thorgate.eu/project/aSIn5oeVmTYnDNa0?auth_action=success",
"VK_DATETIME" => "2024-04-20T13:26:24+0000",
"VK_RID" => "1713619584303",
"VK_ENCODING" => "utf-8",
);
// STEP 3. Generate data to be signed
// ==================================
// Data to be signed is in the form of XXXYYYYY where XXX is 3 char
// zero padded length of the value and YYY the value itself
// NB! LHV expects symbol count, not byte count with UTF-8,
// so use `mb_strlen` instead of `strlen` to detect the length of a string
$data = str_pad (mb_strlen($fields["VK_SERVICE"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_SERVICE"] . /* 4011 */
str_pad (mb_strlen($fields["VK_VERSION"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_VERSION"] . /* 008 */
str_pad (mb_strlen($fields["VK_SND_ID"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_SND_ID"] . /* uid100049 */
str_pad (mb_strlen($fields["VK_REPLY"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REPLY"] . /* 3012 */
str_pad (mb_strlen($fields["VK_RETURN"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_RETURN"] . /* https://banks.pastel.thorgate.eu/project/aSIn5oeVmTYnDNa0?auth_action=success */
str_pad (mb_strlen($fields["VK_DATETIME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_DATETIME"] . /* 2024-04-20T13:26:24+0000 */
str_pad (mb_strlen($fields["VK_RID"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_RID"]; /* 1713619584303 */
/* $data = "0044011003008009uid1000490043012077https://banks.pastel.thorgate.eu/project/aSIn5oeVmTYnDNa0?auth_action=success0242024-04-20T13:26:24+00000131713619584303"; */
// STEP 4. Sign the data with RSA-SHA1 to generate MAC code
// ========================================================
openssl_sign ($data, $signature, $private_key, OPENSSL_ALGO_SHA1);
/* Iy25Eo3g3dsW2O3UPlfFYYK/KIAnZDfs4tRvizlDLBXDgI/dwjnY5BAfFn+V77ALxyUHlGngASUbZ9/GEsbK/SPFrS0UDJohtWNCW4zTYmkPdzMDg9XmDS9PUMevd0tUGYdCxnFcPw9V2UFSeCJzgAZ8nHUZDtNVmD40SCyhWwONPPV+dpOCs2Q9WSF9hAQbXyQll9znXjqKNk3hh3eivdcfMPsT+nP66fMiVAwBq/TOXQrVpf3SU797KMGkDI1I1IW+JtGXy23X4QEj/V6cy66EtIGYZ9rO/+NIPKXinzMnAUM0bgqA2pFLabYYLxJo7wVaePKQoxpCiFACkwh9jA== */
$fields["VK_MAC"] = base64_encode($signature);
// STEP 5. Generate POST form with payment data that will be sent to the bank
// ==========================================================================
?>
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