"1901",
"VK_VERSION" => "008",
"VK_SND_ID" => "HP",
"VK_REC_ID" => "uid100010",
"VK_STAMP" => "6645",
"VK_REF" => "66455",
"VK_MSG" => "c45d3a7bf90ca1309d08b356986e528f",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "LIT",
"VK_MAC" => "XDQ5A2CGnsJoI9ttHyYXSVzPF0ikxqxdAuXGsvOrzq1OnBPlLKWp3wuO8fELN8ckIHXZ1qhaMsg7L/qf32nrpxjyXFKOI6YDw9Oh8fridMRpm6/caS+SEcXlZ/ZP1VA2xKYnRTsmwer725+O/AOIs4bx6X3GO5LRLWQwqemVLjht/nbWIR1UmsYth/cNDplLn1RfsjPqb9jW1GcBzSitT+TNU7NU6fWut52P8iv/ag1LVBUN+PYrXRRNtGnsmUAX3T5j2JuaxazYZaxyH+ci2ENs3e+1ypbziNb3jbRbfW2g8DMk/LjKgTd739KQF6WPcDnQRaj95MNn1fYHyxlavQ==",
"VK_AUTO" => "N"
);
// STEP 3. Generate data to be verified
// ====================================
// Data to be verified is in the form of XXXYYYYY where XXX is 3 char
// zero padded length of the value and YYY the value itself
// NB! Swedbank Lithuania 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) . $fields["VK_SERVICE"] . /* 1901 */
str_pad (mb_strlen($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) . $fields["VK_SND_ID"] . /* HP */
str_pad (mb_strlen($fields["VK_REC_ID"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_ID"] . /* uid100010 */
str_pad (mb_strlen($fields["VK_STAMP"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_STAMP"] . /* 6645 */
str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 66455 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"]; /* c45d3a7bf90ca1309d08b356986e528f */
/* $data = "0041901003008002HP009uid100010004664500566455032c45d3a7bf90ca1309d08b356986e528f"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($data, base64_decode($fields["VK_MAC"]), $public_key) !== 1) {
$signatureVerified = false;
}else{
$signatureVerified = true;
}
// STEP 5. Display output of the received payment
// ==============================================
?>
Payment results
Payment:
Signature: