Online PHP editor | refs for V8cra

<?php if (!(function_exists('openssl_sign') && defined('OPENSSL_ALGO_SHA256'))) { die('Unsupported PHP version or OpenSSH extension missing'); } $privateKey = <<<EOT -----BEGIN PRIVATE KEY----- MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQCrYL5Zq4rvXwEn acjPDXjrl0UnAKfAchtNQIyEdf/a41tFgZkw1DXS2s+9eWNBarWYEwGhFoiOeeop ShU7qa5IKL7pwLaO8vPbTPNWZZ9sy3Vx18lB54IyRPBX5lrLU+n0XuYyFcZa1+Gd Dtgu+AQQqjDGGuSJecuABWH+rzzfumMi9K4gP9S0J8vq60mRna6R47Ati7t/jBJm b2vSoSaWjtKf0LJoRPnbc7SgYF8D4JWJ3xQnsa8LrrBudV5j+N3uRDMimUeHL6iW 1KoAb8g1Iql/b3/2C0Z0M/O/13sECytFxDBVP9W+lvHwNF7pZR+C/BvhFH6FnrFI fRismw8BAgMBAAECggEBAIsHKqS4Azf5TIhayusdtND6oMDpSS1X5EohaV00FOHP u4WBg3MXVKq/k/PT++9fz/2UvaefDhz3Tj08ukjyeE5Vr7sV+YOyGJ35qRaXzmOG ErrOIZjzZK2/O3MzjsiQRKVYL0rGW2nq5D5zgnFoBnQ2fObZfjkAs1QiCcOBCdM8 nttTO31JCwyBuTKGK3KaJdoba6dVze5Xhm1b/haCmq2EJOML5G73jK7m8aYkVDFb FJOShYATyz5Xju33QEPz+HWcMrk/TKZFRQYSjWFAzy0/ENrMptIVff3UN0KL0YSl 0hNHlJwHStDEZAiMw4A20ojtKqfUkyR1kPzxpWdi/BkCgYEA4VVFhv5RNSJUGm1I zhJT54UlfIW57c/NWx/Tqbhe0QYg//sM4c/s8lw45lvmRc7vKs6C/ZGo18p+XNT+ BaZdNFlxbtKJisM61Cegc8pIwzv4mbTyo9SjoWswxt20zVp8sIGeF4w7X94gPVZ0 f8D3OELujXqk2i34blLDbTGF3TsCgYEAwrOkxvZ1cdj4ouFqmTFuCvEKVGxsSQeT Pc4/e/GsjzXGnIkLnsYbUnTXKzt7gLuu0I8B3gF0DqqPCJoGHQv6RIYdY8g6KLF+ 4eGfYSJj6zjKOx4yKP7NT3vQLZehhIKbA723rWQVZ9N3e05P65OBkIp8f5MOfNgJ O+OKVe49MPMCgYBA6S6JL7O3CbeOkVK6wj7XX9ynnWItJoJysJ1ps8nkjs5szyYr 2pjYTEa73VddXro465qCbzZjS1rRZS3z9LO+w9FQamfiyFCnEu8+y9PgIeOAa8bF +RhWBKndb7qIuXtX4U7oW6Yy/Kru4HvY3X6Z/3X23ZClpT5+kWrohq6YRwKBgE/Q uPHfQtIC8hpDciGOw9+0ZFmrgNCHTHL/w8KZlfW3Q84T2DGkYLryrupIHh7t0YIp vcg2rE7+2FfcXDk4GcZRfGbVRBI+gRc0GNQG9xMMWsrVXBa2LZAx32txR4M8zzM/ aLap2qSPaeGgft7Bv1FzlAnwTPYc0dw9MQ589ZTFAoGBAJrB3sNh1ysIUdA3X1Jf vUZfBCofmP+7Cqzln8gdeYA9iXUOoE4VTPw0jK71ZzsmlUejBz9S2ZUfs9q1Srge yFo8Glr/8AXXUAt7iSJS4j7sz07EZbj14LfoooSem+w/ZONy8Sdtm/WMox/iBg7S s+Ix44bf/PXcAri2w7OQp/G6 -----END PRIVATE KEY----- EOT ; EOT ; $data = 'eyJub25jZSI6IlpSQ0VyNXpDRmVlOVNnOGxCVzMtNEhHRG8tdGtuckxDQV96Y3VDUDg5ZTgiLCJhbGciOiJSUzI1NiIsImp3ayI6eyJlIjoiQVFBQiIsImt0eSI6IlJTQSIsIm4iOiJxMkMtV2F1SzcxOEJKMm5JencxNDY1ZEZKd0Nud0hJYlRVQ01oSFhfMnVOYlJZR1pNTlExMHRyUHZYbGpRV3ExbUJNQm9SYUlqbm5xS1VvVk82bXVTQ2ktNmNDMmp2THoyMHp6Vm1XZmJNdDFjZGZKUWVlQ01rVHdWLVpheTFQcDlGN21NaFhHV3RmaG5RN1lMdmdFRUtvd3hocmtpWG5MZ0FWaF9xODgzN3BqSXZTdUlEX1V0Q2ZMNnV0SmtaMnVrZU93TFl1N2Y0d1NabTlyMHFFbWxvN1NuOUN5YUVUNTIzTzBvR0JmQS1DVmlkOFVKN0d2QzY2d2JuVmVZX2pkN2tReklwbEhoeS1vbHRTcUFHX0lOU0twZjI5XzlndEdkRFB6djlkN0JBc3JSY1F3VlRfVnZwYng4RFJlNldVZmd2d2I0UlItaFo2eFNIMFlySnNQQVEifX0.eyJjb250YWN0IjpbIm1haWx0bzptbG9jYXRpQGdtYWlsLmNvbSJdLCJhZ3JlZW1lbnQiOiJodHRwOi8vMTI3LjAuMC4xOjQwMDEvdGVybXMvdjEiLCJyZXNvdXJjZSI6Im5ldy1yZWcifQ'; $signature = null; if (openssl_sign( $data, $signature, $privateKey, OPENSSL_ALGO_SHA256 ) !== true) { die('openssl_sign() failed'); } $lineLength = 24; for ($base = 0; $base < strlen($signature); $base += $lineLength) { echo substr('00000000'.strtoupper(dechex($base)), -8).' '; for ($offset = 0; $offset < $lineLength; $offset++) { echo ' '; if (($offset % 4) === 0) { echo ' '; } $absolute = $base + $offset; if ($absolute >= strlen($signature)) { echo ' '; } else { echo strtoupper(substr('00'.dechex(ord($signature[$absolute])), -2)); } } echo ' '; for ($offset = 0; $offset < $lineLength; $offset++) { $absolute = $base + $offset; if ($absolute >= strlen($signature)) { break; } $c = $signature[$absolute]; $a = ord($c); echo ($a >= 32 && $a <= 127) ? $c : '.'; } echo "\n"; } die();