"1101", "VK_VERSION" => "008", "VK_SND_ID" => "HP", "VK_REC_ID" => "uid100010", "VK_STAMP" => "261", "VK_T_NO" => "10292", "VK_AMOUNT" => "0.01", "VK_CURR" => "EUR", "VK_REC_ACC" => "LT657300010135270430", "VK_REC_NAME" => "BIGBANK AS FILIALAS", "VK_SND_ACC" => "LT121000011101001000", "VK_SND_NAME" => "qwe qwe", "VK_REF" => "2613", "VK_MSG" => "7f2f43dfe3ba599b7fbdd08be6d111d9", "VK_T_DATE" => "23.07.2019", "VK_ENCODING" => "UTF-8", "VK_LANG" => "LIT", "VK_MAC" => "cIfAnEvWSWyy5STgHYT97YZL+ZdPzqgYKxIJ/oB/JGGgGoZW/crKWJ/sl3vy9M4jZXgvpB9GwRHMdcBFmeibKhIDab2ExAU/j7EB5nxQUxO1s6wlnfDYLZ0YvK/AAJrVrLJ/zA//2HDcBym7sVv4Mip9JYF1WuxhtR2TugkFHOoWyJpkh8z/P74ySJxaf4NxXSH6CKEIG33C0u8/Y66jv97jZa8tk2QiuyDI34YFRaQ60US3A6CfM0BuWrC8koUz8OsE8ys95gktyS2BQi53wtS/izrKRQZ3BZZpse/9CRleEHb5DW/BFV/1VtSK2jpyRBB8s75XJBh3Bb6QWzf9Mw==", "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 Lithuania 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) . $fields["VK_SERVICE"] . /* 1101 */ str_pad (mb_strlen($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) . $fields["VK_REC_ID"] . /* uid100010 */ str_pad (mb_strlen($fields["VK_STAMP"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_STAMP"] . /* 261 */ str_pad (mb_strlen($fields["VK_T_NO"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_NO"] . /* 10292 */ str_pad (mb_strlen($fields["VK_AMOUNT"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_AMOUNT"] . /* 0.01 */ str_pad (mb_strlen($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) . $fields["VK_REC_ACC"] . /* LT657300010135270430 */ str_pad (mb_strlen($fields["VK_REC_NAME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_NAME"] . /* BIGBANK AS FILIALAS */ str_pad (mb_strlen($fields["VK_SND_ACC"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_SND_ACC"] . /* LT121000011101001000 */ str_pad (mb_strlen($fields["VK_SND_NAME"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_SND_NAME"] . /* qwe qwe */ str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 2613 */ str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"] . /* 7f2f43dfe3ba599b7fbdd08be6d111d9 */ str_pad (mb_strlen($fields["VK_T_DATE"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_T_DATE"]; /* 23.07.2019 */ /* $data = "0041101003008002HP009uid100010003261005102920040.01003EUR020LT657300010135270430019BIGBANK AS FILIALAS020LT121000011101001000007qwe qwe00426130327f2f43dfe3ba599b7fbdd08be6d111d901023.07.2019"; */ // STEP 4. Verify the data with RSA-SHA1 // ===================================== if (openssl_verify ($data, base64_decode($fields["VK_MAC"]), $public_key) !== 1) { $signatureVerified = false; }else{ $signatureVerified = true; } // STEP 5. Display output of the received payment // ============================================== ?>

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