"1911",
"VK_VERSION" => "008",
"VK_SND_ID" => "HP",
"VK_REC_ID" => "uid100052",
"VK_STAMP" => "215",
"VK_REF" => "2150",
"VK_MSG" => "Vaheajatellimus 2112090001 10.12.2021 17:15",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "EST",
"VK_MAC" => "vcCR5Yq3mONcEG+RBOD4/1d8Dp11zSlUCnyOS9bSWCeUFkROSWJFIVr3KtbaHOTo1sFv5x4zwsvSA9tUcmRc4Zo7AoL++c3O42SW2cJ9RZYG1Cs+GubenUXljjVJtYTJqHwcIl934OL/1xrXWkSD2JO9e2sgPvRi3EF8khbCBcJUJRVw2U/EHy37u6BUijtPssCcwF/rQKtzsvEZi/9xk+aUP65WR8HGCLI1eTIL2udroIxsnBIsji3HINUsK4NEONCiuigmHDdv3w5axgL+i+18dct83MH9Hr3Gzd29pSZ3o58sMcqGnphGg2du38EeSHi7qDCwW+jMqQDFjb4KaA==",
"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) . $fields["VK_SERVICE"] . /* 1911 */
str_pad (mb_strlen($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) . $fields["VK_STAMP"] . /* 215 */
str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 2150 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"]; /* Vaheajatellimus 2112090001 10.12.2021 17:15 */
/* $data = "0041911003008002HP009uid1000520032150042150043Vaheajatellimus 2112090001 10.12.2021 17:15"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: