"1111",
"VK_VERSION" => "008",
"VK_SND_ID" => "LHV",
"VK_REC_ID" => "uid100049",
"VK_STAMP" => "2908798",
"VK_T_NO" => "10192",
"VK_AMOUNT" => "40.74",
"VK_CURR" => "EUR",
"VK_REC_ACC" => "EE171010123456789017",
"VK_REC_NAME" => "Veebimajutus",
"VK_SND_ACC" => "EE597700771234567897",
"VK_SND_NAME" => "Tõõger Leõpäöld",
"VK_REF" => "29087981",
"VK_MSG" => "Pangalink: 2908798",
"VK_T_DATETIME" => "2023-04-19T18:13:47+0000",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "EST",
"VK_MAC" => "apMxQ2y8ggeeMV0lVFNQLQwpDVsvYfBntW5M7SCLu/7O76OOTi9aKBKJPpOwFN6hwmTxV/KyHlau1PJY7LMdjF8LuPGkjCBQeuy7TjjQ21kBkSKAGtn9o93G8ZcDmEL1lWwC7MorvfGYKb8iNOmX9qLnxkPaXYJEJTk8MIvzgLOlL9jf6ST+SWY3MiQQf7unL9d/NeoNe8v3aUw0npt7qWFa3dmbJ/yYIzEGnQ3XaX6VGdW3d92n0gGPVXE+D62O3+KJm+1KllkZaNdVB7BO43xLLsdhQkZ07fhPxPUwQnKUlBtgRSstPw8KE3TzOOPeIY9uwg6rI3dKH0BUV40hIQ==",
"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! LHV 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) . $fields["VK_SND_ID"] . /* LHV */
str_pad (mb_strlen($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) . $fields["VK_STAMP"] . /* 2908798 */
str_pad (mb_strlen($fields["VK_T_NO"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_NO"] . /* 10192 */
str_pad (mb_strlen($fields["VK_AMOUNT"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_AMOUNT"] . /* 40.74 */
str_pad (mb_strlen($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) . $fields["VK_SND_ACC"] . /* EE597700771234567897 */
str_pad (mb_strlen($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) . $fields["VK_REF"] . /* 29087981 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"] . /* Pangalink: 2908798 */
str_pad (mb_strlen($fields["VK_T_DATETIME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_DATETIME"]; /* 2023-04-19T18:13:47+0000 */
/* $data = "0041111003008003LHV009uid10004900729087980051019200540.74003EUR020EE171010123456789017012Veebimajutus020EE597700771234567897015Tõõger Leõpäöld00829087981018Pangalink: 29087980242023-04-19T18:13:47+0000"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: