"1911", "VK_VERSION" => "008", "VK_SND_ID" => "EYP", "VK_REC_ID" => "uid100036", "VK_STAMP" => "9", "VK_REF" => "97", "VK_MSG" => "Plastok tellimus 26.02.2021 12:40 Ref.:9", "VK_ENCODING" => "UTF-8", "VK_LANG" => "EST", "VK_MAC" => "jXHP2UIlI9ux6CDpu05e0Kex3JkcMg8hFMXRaGrgVBvZ15v6LNfmyXprW2qK2pPEZIa/fg5nfNwSFNn6h/++g0EW8TmPJyaBQnvqoJMSJZpwusAxV4lqpjb6ji5AJpRxuJLLyVQs0k8fQT6deRilcaAmdNZR3ARWk0sgPyS5+qSpNDvgEI4vD+vV9gL0I+J4MfPkOFYuclKhFaDQBR21O8DJ6D2rt2MVNBenRcMoVTyVVf68f3FhRcEMbfEZoivFA0VFPlOcpop0thLgzHIl6494t+Pftymsm38OKNA3d9AfpAIZ+55as2ir/ssIdgn5WNCqlxB4HYC7QHsYptVaxQ==", "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! SEB 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) . $fields["VK_SND_ID"] . /* EYP */ str_pad (mb_strlen($fields["VK_REC_ID"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REC_ID"] . /* uid100036 */ str_pad (mb_strlen($fields["VK_STAMP"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_STAMP"] . /* 9 */ str_pad (mb_strlen($fields["VK_REF"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_REF"] . /* 97 */ str_pad (mb_strlen($fields["VK_MSG"], "UTF-8"), 3, "0", STR_PAD_LEFT) . $fields["VK_MSG"]; /* Plastok tellimus 26.02.2021 12:40 Ref.:9 */ /* $data = "0041911003008003EYP009uid100036001900297040Plastok tellimus 26.02.2021 12:40 Ref.:9"; */ // STEP 4. Verify the data with RSA-SHA1 // ===================================== if (openssl_verify ($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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