"1911", "VK_VERSION" => "008", "VK_SND_ID" => "HP", "VK_REC_ID" => "uid100052", "VK_STAMP" => "64", "VK_REF" => "644", "VK_MSG" => "Ref. 2101040004", "VK_ENCODING" => "UTF-8", "VK_LANG" => "EST", "VK_MAC" => "lwFf/ig17nBupidzK5H9hEJ3rr0zit1Z8rwXc0e5JRuV2lsUFPxGVA8VMMuRDwY/bFRDVmITJ0gZWQJ/U/CJtFQpBshPN3ALQGvizOMkw0B4aAQrsrxw0qYJwdbA2bzeUhcGyDAbq+mL+ijNDNBDnVQgSQQWbhQe/Fp7K50kLOPSdHh1gmxKy29YY9AlTE5nmjqa0+bfGi3iphm7exD6kz+8fUZ43RSLrGqADleoTrl5pWoe4minV9R2tiilSu53RHdCT0vi6iGIxxGrLoq4Us2aw09D2wqA/EJmP2EECr0kcomcAfFCQn6xn1IjpW6rlTEjgVlq6AxHcDptvGbumQ==", "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) . $fields["VK_STAMP"] . /* 64 */ str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 644 */ str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"]; /* Ref. 2101040004 */ /* $data = "0041911003008002HP009uid10005200264003644015Ref. 2101040004"; */ // STEP 4. Verify the data with RSA-SHA1 // ===================================== if (openssl_verify ($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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