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.
114 lines
3.9 KiB
PHP
114 lines
3.9 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 "=== Reed-Solomon Verification ===\n\n";
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// Test with known data codewords for "HELLO WORLD"
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// These are the correct data codewords that we generate
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$dataCodewords = [64, 180, 132, 84, 196, 196, 242, 5, 116, 245, 36, 196, 64, 236, 17, 236];
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echo "Data codewords (16):\n";
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echo implode(', ', $dataCodewords) . "\n\n";
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// Generate EC codewords
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$reedSolomon = new ReedSolomonEncoder();
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$ecCodewords = $reedSolomon->encode($dataCodewords, 10);
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echo "EC codewords (10):\n";
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echo implode(', ', $ecCodewords) . "\n\n";
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// Verify Reed-Solomon encoding
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// For Reed-Solomon, if we encode data and then decode, we should get the original data back
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// But we can also verify by checking if the polynomial division was correct
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echo "=== Reed-Solomon Verification ===\n";
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echo "For RS(n, k), where n = total codewords and k = data codewords:\n";
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echo " n = 26 (total codewords)\n";
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echo " k = 16 (data codewords)\n";
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echo " t = 10 (EC codewords)\n";
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echo " Can correct up to t/2 = 5 errors\n\n";
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// Test: Create a message polynomial and verify encoding
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echo "Message polynomial (data + zeros for EC):\n";
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$messagePoly = array_merge($dataCodewords, array_fill(0, 10, 0));
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echo " " . implode(', ', $messagePoly) . "\n\n";
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// Get generator polynomial
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$reflection = new ReflectionClass($reedSolomon);
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$getGeneratorMethod = $reflection->getMethod('getGeneratorPolynomial');
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$getGeneratorMethod->setAccessible(true);
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$generator = $getGeneratorMethod->invoke($reedSolomon, 10);
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echo "Generator polynomial (degree 10):\n";
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echo " " . implode(', ', $generator) . "\n\n";
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// Verify: The generator polynomial should have 11 coefficients (degree 10 + 1)
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if (count($generator) === 11) {
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echo "✅ Generator polynomial has correct degree (10)\n";
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} else {
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echo "❌ Generator polynomial has wrong degree: " . (count($generator) - 1) . " (expected: 10)\n";
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}
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// Test GF field operations
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echo "\n=== GF(256) Field Operations Test ===\n";
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$gfMultiplyMethod = $reflection->getMethod('gfMultiply');
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$gfMultiplyMethod->setAccessible(true);
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// Test some multiplications
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$testCases = [
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[0, 5, 0], // 0 * anything = 0
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[1, 5, 5], // 1 * x = x
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[2, 3, 6], // 2 * 3 = 6
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[87, 1, 87], // Generator coefficient
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[251, 1, 251], // Generator coefficient
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];
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$allCorrect = true;
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foreach ($testCases as [$a, $b, $expected]) {
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$result = $gfMultiplyMethod->invoke($reedSolomon, $a, $b);
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$match = $result === $expected ? '✅' : '❌';
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if ($result !== $expected) {
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$allCorrect = false;
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}
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echo " {$a} * {$b} = {$result} (expected: {$expected}) {$match}\n";
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}
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if ($allCorrect) {
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echo "\n✅ GF multiplication is correct\n";
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} else {
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echo "\n❌ GF multiplication has errors\n";
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}
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// Test generator polynomial coefficients
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echo "\n=== Generator Polynomial Coefficients ===\n";
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echo "Expected for 10 EC codewords (from QR spec):\n";
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echo " [0, 251, 67, 46, 61, 118, 70, 64, 94, 32, 45]\n";
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echo "Actual:\n";
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echo " [" . implode(', ', $generator) . "]\n";
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if ($generator === [0, 251, 67, 46, 61, 118, 70, 64, 94, 32, 45]) {
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echo "\n✅ Generator polynomial matches specification!\n";
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} else {
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echo "\n❌ Generator polynomial doesn't match specification!\n";
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echo "Differences:\n";
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$expected = [0, 251, 67, 46, 61, 118, 70, 64, 94, 32, 45];
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for ($i = 0; $i < min(count($generator), count($expected)); $i++) {
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if ($generator[$i] !== $expected[$i]) {
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echo " Coefficient {$i}: got {$generator[$i]}, expected {$expected[$i]}\n";
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}
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}
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}
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// Final check: Can we decode the encoded data?
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echo "\n=== Decode Test ===\n";
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echo "Note: Full decode test requires error correction decoder.\n";
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echo "For now, we verify that EC codewords are generated correctly.\n";
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echo "If EC codewords are wrong, QR scanners will fail the error correction check.\n";
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