"1111",
"VK_VERSION" => "008",
"VK_SND_ID" => "LHV",
"VK_REC_ID" => "uid100049",
"VK_STAMP" => "2430298",
"VK_T_NO" => "10184",
"VK_AMOUNT" => "31.2",
"VK_CURR" => "EUR",
"VK_REC_ACC" => "EE171010123456789017",
"VK_REC_NAME" => "Veebimajutus",
"VK_SND_ACC" => "EE597700771234567897",
"VK_SND_NAME" => "Tõõger Leõpäöld",
"VK_REF" => "24302988",
"VK_MSG" => "Pangalink: 2430298",
"VK_T_DATETIME" => "2023-03-02T12:34:15+0000",
"VK_ENCODING" => "UTF-8",
"VK_LANG" => "EST",
"VK_MAC" => "O8vHB1iAGKOwJVNsdwUt3nmAnv/9f6nf2AQYQGGNWy5MaCRG3G2niyzs81Yw2xQfy/zo2EpCRgPicipRLrHhBfPoXDLbj80dsEQ48MbTFxuFgG3wqkf6I9NrzQnENjqA+DffuIrSyLQxPKz1z8tYB7K9rMDBNvQ/A6ZatVYLKfqk8XZJcj4H6Ndy3OFn47qA21aOU6p4W3R5N4CEAhzv4wQeT1NoTk2E/MIJq4FuKRmJ0CWr5YZrBL32ZLLrUOYeEGfJKCJBUuwdjpVlcqODUg7H3ZzgJ16E4vAv9Ll9rf2vxqbiRlrXStO5NF/rpiV3KvSQ2o0zP2/QkiAcLSJWUg==",
"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) . $fields["VK_STAMP"] . /* 2430298 */
str_pad (mb_strlen($fields["VK_T_NO"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_NO"] . /* 10184 */
str_pad (mb_strlen($fields["VK_AMOUNT"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_AMOUNT"] . /* 31.2 */
str_pad (mb_strlen($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) . $fields["VK_REF"] . /* 24302988 */
str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"] . /* Pangalink: 2430298 */
str_pad (mb_strlen($fields["VK_T_DATETIME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_DATETIME"]; /* 2023-03-02T12:34:15+0000 */
/* $data = "0041111003008003LHV009uid10004900724302980051018400431.2003EUR020EE171010123456789017012Veebimajutus020EE597700771234567897015Tõõger Leõpäöld00824302988018Pangalink: 24302980242023-03-02T12:34:15+0000"; */
// STEP 4. Verify the data with RSA-SHA1
// =====================================
if (openssl_verify ($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: