"1111",
"VK_VERSION" => "008",
"VK_SND_ID" => "HP",
"VK_REC_ID" => "uid100049",
"VK_STAMP" => "53783",
"VK_T_NO" => "10082",
"VK_AMOUNT" => "72.1",
"VK_CURR" => "EUR",
"VK_REC_ACC" => "EE094204278699999907",
"VK_REC_NAME" => "TEST FIRMA AS",
"VK_SND_ACC" => "EE152200221234567897",
"VK_SND_NAME" => "Tõõger Leõpäöld",
"VK_REF" => "",
"VK_MSG" => "53783-88541",
"VK_T_DATETIME" => "2022-08-19T21:26:43+0000",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "EST",
"VK_MAC" => "p6RQN+lAjpW2ITBJzr1uYW8a9adhtYrhCjwXEJC+taY4xg/TAX3tOU3VGP3DdOTRwT/9/ij5lzjNJr6d+FtToIqgtx/Q63whjAiQcoBPv2OjAciSKS1YKx6BNbziI5qLv1iJRU0H+STK+Xq31rr/IlLhvFVBYpEdyXb9t2AwUugElpDSF+aSZifUY4KY2s9xEQ30VSm5LpA7DME5IWU5T9fykwhojRsKA7SMfij0lm2xcp/Xij5Tg+/HdNPrcn5zyw9W+MCabw1vhDNpuVTdcif8HRC1kIGs1sNS9eJFXAv4zz9zfPeQGWv8MobvGa5Z/twzjlO0qbm5id3yeV/vBA==",
"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) . $fields["VK_REC_ID"] . /* uid100049 */
str_pad (mb_strlen($fields["VK_STAMP"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_STAMP"] . /* 53783 */
str_pad (mb_strlen($fields["VK_T_NO"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_NO"] . /* 10082 */
str_pad (mb_strlen($fields["VK_AMOUNT"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_AMOUNT"] . /* 72.1 */
str_pad (mb_strlen($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) . $fields["VK_REC_ACC"] . /* EE094204278699999907 */
str_pad (mb_strlen($fields["VK_REC_NAME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_NAME"] . /* TEST FIRMA AS */
str_pad (mb_strlen($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) . $fields["VK_REF"] . /* */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"] . /* 53783-88541 */
str_pad (mb_strlen($fields["VK_T_DATETIME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_DATETIME"]; /* 2022-08-19T21:26:43+0000 */
/* $data = "0041111003008002HP009uid100049005537830051008200472.1003EUR020EE094204278699999907013TEST FIRMA AS020EE152200221234567897015Tõõger Leõpäöld00001153783-885410242022-08-19T21:26:43+0000"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: