"1111",
"VK_VERSION" => "008",
"VK_SND_ID" => "HP",
"VK_REC_ID" => "uid100052",
"VK_STAMP" => "2430023",
"VK_T_NO" => "10116",
"VK_AMOUNT" => "63",
"VK_CURR" => "EUR",
"VK_REC_ACC" => "EE171010123456789017",
"VK_REC_NAME" => "Veebimajutus",
"VK_SND_ACC" => "EE152200221234567897",
"VK_SND_NAME" => "Tõõger Leõpäöld",
"VK_REF" => "24300236",
"VK_MSG" => "Arve 2430023",
"VK_T_DATETIME" => "2022-09-01T12:18:52+0000",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "EST",
"VK_MAC" => "bwTuoXFZC6UOtkJaf3MV1w9INsN3Ptm/QG0sLwD/NSHAZSY9MUXNZe7ut5JLAO/rf3VWYAfBRS3UJaLO18e81ODYOFYQHIi/Ie9lcip5MMeOvQTvYS1N+2FDniIAQpCn82XZwX7EdaA8XO+mTYDbpP1J5XJtTVEealEm1kShZ6x0m3gVBZ9BfvzCgM95udRBXbq/Dtk5/6JaHrB0Yh5sm5+7M67Tdw+Fdx0IRdSnFDtPPV3qxgW3I0DMYa1eew8hnEiJ9rwHgHM1FPnCaq+w9UtB21zX6jcJC+/fldjkA0lE/RwhvogCw9plAd2G3hLppEcyS3hUGDfjfeRFdMlVqA==",
"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) . $fields["VK_STAMP"] . /* 2430023 */
str_pad (mb_strlen($fields["VK_T_NO"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_NO"] . /* 10116 */
str_pad (mb_strlen($fields["VK_AMOUNT"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_AMOUNT"] . /* 63 */
str_pad (mb_strlen($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) . $fields["VK_REC_ACC"] . /* EE171010123456789017 */
str_pad (mb_strlen($fields["VK_REC_NAME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_NAME"] . /* Veebimajutus */
str_pad (mb_strlen($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) . $fields["VK_REF"] . /* 24300236 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"] . /* Arve 2430023 */
str_pad (mb_strlen($fields["VK_T_DATETIME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_DATETIME"]; /* 2022-09-01T12:18:52+0000 */
/* $data = "0041111003008002HP009uid10005200724300230051011600263003EUR020EE171010123456789017012Veebimajutus020EE152200221234567897015Tõõger Leõpäöld00824300236012Arve 24300230242022-09-01T12:18:52+0000"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: