"1901",
"VK_VERSION" => "008",
"VK_SND_ID" => "HP",
"VK_REC_ID" => "uid100010",
"VK_STAMP" => "784",
"VK_REF" => "7841",
"VK_MSG" => "83b5a800c2bcecf6a314df9f1e9dc688",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "LIT",
"VK_MAC" => "fCwZFyr0ogs1AfpNi7z4KIdUjuqp6WJ9z6E/gDnzOVUvEYImDhv5ho3FDwO5VgIVEXH4FcRWWo6ZdiPjktPurlsluXcH/cwmsc90tbXgAbhPxq3/MWVmTzX6nSXPnI4SWhnfN1TVMBYJP4hLDXH4nFYdLw49hidQvT1Dzi1GOmxTAnhGTgUXY0yQHYhGDcEfsxEQX1b/fs2YvUnqo/72/sXYgYcad0jxl6ZN6Xm2b/9Rkw3ihXhUo1nQ6P1pdI3B/yIJ+RzAikpak+B2IkuG5zIlzVwTgeHgKTCfV1pTOisoOiSZ+5z+VIimhXDVxC6j6iDaSl8FN0K4LOnnKQInzA==",
"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) . $fields["VK_STAMP"] . /* 784 */
str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 7841 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"]; /* 83b5a800c2bcecf6a314df9f1e9dc688 */
/* $data = "0041901003008002HP009uid100010003784004784103283b5a800c2bcecf6a314df9f1e9dc688"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: