Michael Schiemer
95147ff23e
Remove WireGuard integration from production deployment to simplify infrastructure: - Remove docker-compose-direct-access.yml (VPN-bound services) - Remove VPN-only middlewares from Grafana, Prometheus, Portainer - Remove WireGuard middleware definitions from Traefik - Remove WireGuard IPs (10.8.0.0/24) from Traefik forwarded headers All monitoring services now publicly accessible via subdomains: - grafana.michaelschiemer.de (with Grafana native auth) - prometheus.michaelschiemer.de (with Basic Auth) - portainer.michaelschiemer.de (with Portainer native auth) All services use Let's Encrypt SSL certificates via Traefik.
100 lines
3.2 KiB
PHP
100 lines
3.2 KiB
PHP
<?php
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declare(strict_types=1);
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require_once __DIR__ . '/../../vendor/autoload.php';
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use App\Framework\QrCode\ErrorCorrection\ReedSolomonEncoder;
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echo "=== Polynomial Division Step-by-Step ===\n\n";
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// Test with simple data to trace the algorithm
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$data = [1, 2, 3];
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$ecCodewords = 3;
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$rs = new ReedSolomonEncoder();
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$reflection = new ReflectionClass($rs);
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// Get generator polynomial
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$getGeneratorMethod = $reflection->getMethod('getGeneratorPolynomial');
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$getGeneratorMethod->setAccessible(true);
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$generator = $getGeneratorMethod->invoke($rs, $ecCodewords);
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echo "Data: " . implode(', ', $data) . "\n";
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echo "EC codewords needed: {$ecCodewords}\n";
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echo "Generator polynomial (degree {$ecCodewords}): " . implode(', ', $generator) . "\n\n";
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// Manually trace the algorithm
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echo "=== Algorithm Trace ===\n";
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// Step 1: Create message polynomial
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$messagePoly = array_merge($data, array_fill(0, $ecCodewords, 0));
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echo "Step 1 - Message polynomial (data + zeros):\n";
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echo " [" . implode(', ', $messagePoly) . "]\n\n";
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// Step 2: Polynomial division
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echo "Step 2 - Polynomial division:\n";
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$gfMultiplyMethod = $reflection->getMethod('gfMultiply');
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$gfMultiplyMethod->setAccessible(true);
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$traceMessagePoly = $messagePoly;
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for ($i = 0; $i < count($data); $i++) {
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$coefficient = $traceMessagePoly[$i];
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if ($coefficient !== 0) {
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echo " Iteration {$i}: coefficient = {$coefficient}\n";
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echo " Before: [" . implode(', ', $traceMessagePoly) . "]\n";
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for ($j = 0; $j < count($generator); $j++) {
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$multiplied = $gfMultiplyMethod->invoke($rs, $generator[$j], $coefficient);
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$oldValue = $traceMessagePoly[$i + $j];
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$traceMessagePoly[$i + $j] ^= $multiplied;
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$newValue = $traceMessagePoly[$i + $j];
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if ($oldValue !== $newValue) {
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echo " [{$i}+{$j}] = {$oldValue} XOR {$multiplied} = {$newValue}\n";
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}
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}
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echo " After: [" . implode(', ', $traceMessagePoly) . "]\n\n";
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} else {
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echo " Iteration {$i}: coefficient = 0 (skip)\n\n";
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}
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}
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// Step 3: Extract EC codewords
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$ec = array_slice($traceMessagePoly, count($data));
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echo "Step 3 - EC codewords (last {$ecCodewords} coefficients):\n";
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echo " [" . implode(', ', $ec) . "]\n\n";
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// Verify with actual implementation
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$actualEC = $rs->encode($data, $ecCodewords);
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echo "Actual EC codewords from implementation:\n";
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echo " [" . implode(', ', $actualEC) . "]\n\n";
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if ($ec === $actualEC) {
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echo "✅ Traced algorithm matches implementation!\n";
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} else {
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echo "❌ Traced algorithm doesn't match implementation!\n";
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echo "Differences:\n";
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for ($i = 0; $i < min(count($ec), count($actualEC)); $i++) {
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if ($ec[$i] !== $actualEC[$i]) {
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echo " Position {$i}: traced={$ec[$i]}, actual={$actualEC[$i]}\n";
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}
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}
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}
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// Test with our actual QR code data
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echo "\n=== Test with QR Code Data ===\n";
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$qrData = [64, 180, 132, 84, 196, 196, 242, 5, 116, 245, 36, 196, 64, 236, 17, 236];
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$qrEC = $rs->encode($qrData, 10);
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echo "QR data codewords (16):\n";
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echo " " . implode(', ', $qrData) . "\n\n";
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echo "QR EC codewords (10):\n";
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echo " " . implode(', ', $qrEC) . "\n\n";
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