"1111",
"VK_VERSION" => "008",
"VK_SND_ID" => "HP",
"VK_REC_ID" => "uid100052",
"VK_STAMP" => "71",
"VK_T_NO" => "16220",
"VK_AMOUNT" => "36.00",
"VK_CURR" => "EUR",
"VK_REC_ACC" => "",
"VK_REC_NAME" => "",
"VK_SND_ACC" => "EE152200221234567897",
"VK_SND_NAME" => "Tõõger Leõpäöld",
"VK_REF" => "712",
"VK_MSG" => "Vaheajatellimus 2102010003 03.02.2021 13:00",
"VK_T_DATETIME" => "2021-02-01T14:27:28+0000",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "EST",
"VK_MAC" => "INFf//TiA440Bl7M+m6u9fmb98LCsKGidjdCeTeGYWSMMtJGUe8vYxFHMbIFyo9Vb/AE9ixkACf3x/20PW1AykhFntOp++K0mMQrRDXyXQi8elEWH47q8BMrKxE3+hZrW6PDRzv7sEwfESPKbh3RTLah9SnINj8qJ84Yw9uC53bkmonu3d2rtIimx34Kbl+K3VBxhB5kRFSIWrnJq/Yl8QP0VEL1mCroEFRKKdXfIqlBNdqHM7Tv6t/NdPFASb4ynfsdQ+1U3vncu0OFQ8H/LVu3Dn0HtTdblWBZdSRt5ytKgRsHu4B7WLsyRJRlEiSPAVAai9jtUH8ghvZU4FFjYg==",
"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 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) . $fields["VK_SERVICE"] . /* 1111 */
str_pad (mb_strlen($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) . $fields["VK_REC_ID"] . /* uid100052 */
str_pad (mb_strlen($fields["VK_STAMP"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_STAMP"] . /* 71 */
str_pad (mb_strlen($fields["VK_T_NO"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_NO"] . /* 16220 */
str_pad (mb_strlen($fields["VK_AMOUNT"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_AMOUNT"] . /* 36.00 */
str_pad (mb_strlen($fields["VK_CURR"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_CURR"] . /* EUR */
str_pad (mb_strlen($fields["VK_REC_ACC"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_ACC"] . /* */
str_pad (mb_strlen($fields["VK_REC_NAME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_NAME"] . /* */
str_pad (mb_strlen($fields["VK_SND_ACC"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_SND_ACC"] . /* EE152200221234567897 */
str_pad (mb_strlen($fields["VK_SND_NAME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_SND_NAME"] . /* Tõõger Leõpäöld */
str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 712 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"] . /* Vaheajatellimus 2102010003 03.02.2021 13:00 */
str_pad (mb_strlen($fields["VK_T_DATETIME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_DATETIME"]; /* 2021-02-01T14:27:28+0000 */
/* $data = "0041111003008002HP009uid100052002710051622000536.00003EUR000000020EE152200221234567897015Tõõger Leõpäöld003712043Vaheajatellimus 2102010003 03.02.2021 13:000242021-02-01T14:27:28+0000"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: