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.
71 lines
2.4 KiB
PHP
71 lines
2.4 KiB
PHP
<?php
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declare(strict_types=1);
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echo "=== Bit Mapping Analysis ===\n\n";
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$testData = 'HELLO WORLD';
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// Build encoding
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$bits = '';
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// 1. Mode (4 bits)
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$modeBits = '0100';
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$bits .= $modeBits;
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echo "Bits 0-3: Mode = {$modeBits}\n";
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// 2. Count (8 bits)
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$countBits = str_pad(decbin(11), 8, '0', STR_PAD_LEFT);
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$bits .= $countBits;
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echo "Bits 4-11: Count = {$countBits} (11)\n";
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// 3. Data bytes
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$bitPos = 12;
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for ($i = 0; $i < 11; $i++) {
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$char = $testData[$i];
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$byte = ord($char);
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$byteBits = str_pad(decbin($byte), 8, '0', STR_PAD_LEFT);
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$bits .= $byteBits;
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echo "Bits {$bitPos}-" . ($bitPos + 7) . ": '{$char}' = {$byteBits} ({$byte})\n";
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$bitPos += 8;
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}
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echo "\nTotal bits: " . strlen($bits) . "\n";
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echo "Expected: 4 + 8 + 88 = 100 bits\n\n";
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// Now check what codeword 11 should be
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// Codeword 11 = Bits 80-87
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echo "=== Codeword 11 Analysis ===\n";
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echo "Bits 80-87 should be: " . substr($bits, 80, 8) . "\n";
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echo "This is character: '" . $testData[8] . "' (bit position " . (80 - 12) . " in data)\n";
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echo "Character index: " . intval(($bitPos - 12 - 8) / 8) . "\n";
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// Expected codeword 11
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$expected = [64, 180, 132, 84, 196, 196, 242, 5, 116, 245, 174, 59, 64, 109, 236, 233];
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echo "Expected codeword 11: " . $expected[10] . " = " . str_pad(decbin($expected[10]), 8, '0', STR_PAD_LEFT) . "\n";
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echo "Our codeword 11 (bits 80-87): " . bindec(substr($bits, 80, 8)) . " = " . substr($bits, 80, 8) . "\n";
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// The issue: Our bits 80-87 should be "R" (01010010), but expected is 174 (10101110)
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// This means the expected encoding is different!
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// Let's check what character should be at bit 80
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// Bit 80 = bit 68 in data (80 - 12 mode/count bits)
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// Data bit 68 = character index 68/8 = 8.5, so it's in the middle of character 8
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// Character 8 = 'R' (bits 68-75 of data = bits 80-87 total)
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echo "\nCharacter at data position 8: '{$testData[8]}' = " . str_pad(decbin(ord($testData[8])), 8, '0', STR_PAD_LEFT) . "\n";
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echo "Expected codeword 11: " . str_pad(decbin($expected[10]), 8, '0', STR_PAD_LEFT) . "\n";
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if (substr($bits, 80, 8) === str_pad(decbin($expected[10]), 8, '0', STR_PAD_LEFT)) {
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echo "✅ Codeword 11 matches expected!\n";
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} else {
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echo "❌ Codeword 11 doesn't match!\n";
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echo "This means the expected reference might be wrong, OR\n";
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echo "the data encoding includes something we're missing.\n";
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}
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// Wait - maybe "HELLO WORLD" in the reference uses a different encoding?
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// Or maybe there's ECI mode or something else?
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