File size: 59,158 Bytes
7bfe1af edd271d 7bfe1af edd271d 7bfe1af edd271d 7bfe1af edd271d 7bfe1af edd271d 79d5f1b 7bfe1af 79d5f1b bdb2e55 7bfe1af edd271d 7bfe1af 79d5f1b edd271d 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af 6264b1a 7bfe1af edd271d 7bfe1af 6264b1a 7bfe1af |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 |
// Privacy Attacks Interactive Demonstrations
class AttackSimulator {
constructor() {
this.charts = {};
this.initializeEventListeners();
this.initializeCharts();
}
initializeEventListeners() {
// Tab switching
// document.querySelectorAll('.attack-tab').forEach(tab => {
// tab.addEventListener('click', (e) => {
// this.switchTab(e.target.dataset.attack);
// });
// });
document.querySelectorAll('.attack-tab').forEach(tab => {
tab.addEventListener('click', (e) => {
const attackType = e.currentTarget.dataset.attack; // use currentTarget (safer than target)
// 1) UI event (generic)
track('ui_click', {
component: 'attack_tab',
attack: attackType,
page: 'privacy_attacks'
});
// 2) Semantic event (recommended)
track('attack_tab_open', {
attack: attackType,
page: 'privacy_attacks'
});
this.switchTab(attackType);
});
});
// Slider updates
// this.setupSliderUpdates();
// ✅ Add this (bind events for whatever tab is active on load)
this.bindAttacksPageEvents();
}
setupSliderUpdates() {
// New membership privacy level slider
const privacyLevelSlider = document.getElementById('privacy-level-slider');
if (privacyLevelSlider) {
privacyLevelSlider.addEventListener('input', (e) => {
const levels = ['Very High', 'High', 'Medium', 'Low', 'Very Low'];
document.getElementById('privacy-level-text').textContent = levels[e.target.value - 1];
this.updateMembershipDemo();
});
}
// Reconstruction sliders
const reconClipping = document.getElementById('recon-clipping-slider');
const reconNoise = document.getElementById('recon-noise-slider');
if (reconClipping) {
reconClipping.addEventListener('input', (e) => {
document.getElementById('recon-clipping').textContent = e.target.value;
this.updateReconstructionAttack();
});
}
if (reconNoise) {
reconNoise.addEventListener('input', (e) => {
document.getElementById('recon-noise-level').textContent = e.target.value;
this.updateReconstructionAttack();
});
}
// Linkage sliders
const linkageQuality = document.getElementById('linkage-quality-slider');
const linkagePrivacy = document.getElementById('linkage-privacy-slider');
if (linkageQuality) {
linkageQuality.addEventListener('input', (e) => {
const qualities = ['Very Low', 'Low', 'Medium', 'High', 'Very High'];
document.getElementById('linkage-quality').textContent = qualities[e.target.value - 1];
this.updateLinkageAttack();
});
}
if (linkagePrivacy) {
linkagePrivacy.addEventListener('input', (e) => {
const epsilon = (11 - e.target.value).toFixed(1);
document.getElementById('linkage-model-privacy').textContent = `ε=${epsilon}`;
this.updateLinkageAttack();
});
}
}
bindAttacksPageEvents(attackType = null) {
// Bind only within the currently active attack content (prevents binding to hidden/nonexistent nodes)
const container = attackType
? document.getElementById(`${attackType}-content`)
: document.querySelector('.attack-content.active');
if (!container) return;
// Helper: bind once per element per handler-key
const bindOnce = (el, key, eventName, fn) => {
if (!el) return;
const flag = `bound_${key}`;
if (el.dataset[flag] === '1') return;
el.addEventListener(eventName, fn);
el.dataset[flag] = '1';
};
// ---- Membership tab ----
bindOnce(
container.querySelector('#privacy-level-slider'),
'privacy_level_slider',
'input',
() => this.updateMembershipDemo()
);
bindOnce(
container.querySelector('#update-privacy-btn'),
'update_privacy_btn',
'click',
(e) => {
// If you have a button on the Attacks page, prefer binding here over inline onclick
e.preventDefault();
this.updateMembershipDemo();
}
);
// ---- Reconstruction tab ----
bindOnce(
container.querySelector('#recon-clipping-slider'),
'recon_clipping_slider',
'input',
() => this.updateReconstructionAttack()
);
bindOnce(
container.querySelector('#recon-noise-slider'),
'recon_noise_slider',
'input',
() => this.updateReconstructionAttack()
);
bindOnce(
container.querySelector('#run-reconstruction-btn'),
'run_reconstruction_btn',
'click',
(e) => {
e.preventDefault();
this.updateReconstructionAttack();
updateCurrentReconstructionExamples();
}
);
// ---- Inversion tab ----
bindOnce(
container.querySelector('#inversion-privacy-slider'),
'inversion_privacy_slider',
'input',
() => {
const privacySlider = container.querySelector('#inversion-privacy-slider');
const classSelect = container.querySelector('#inversion-class-select');
if (!privacySlider || !classSelect) return;
const sliderValue = parseInt(privacySlider.value);
const privacyLevel = 11 - sliderValue;
drawInvertedFeatures(classSelect.value, privacyLevel);
}
);
bindOnce(
container.querySelector('#run-inversion-btn'),
'run_inversion_btn',
'click',
(e) => {
e.preventDefault();
// If you want: call your existing function or inline the logic
runInversionAttack();
}
);
// ---- Property tab ----
bindOnce(
container.querySelector('#run-property-btn'),
'run_property_btn',
'click',
(e) => {
e.preventDefault();
runPropertyAttack();
}
);
// ---- Linkage tab ----
bindOnce(
container.querySelector('#linkage-quality-slider'),
'linkage_quality_slider',
'input',
() => this.updateLinkageAttack()
);
bindOnce(
container.querySelector('#linkage-privacy-slider'),
'linkage_privacy_slider',
'input',
() => this.updateLinkageAttack()
);
bindOnce(
container.querySelector('#run-linkage-btn'),
'run_linkage_btn',
'click',
(e) => {
e.preventDefault();
this.updateLinkageAttack();
}
);
}
switchTab(attackType) {
const prev = document.querySelector('.attack-tab.active')?.dataset?.attack;
// Update tab buttons
document.querySelectorAll('.attack-tab').forEach(tab => {
tab.classList.remove('active');
});
document.querySelector(`[data-attack="${attackType}"]`).classList.add('active');
// Update content
document.querySelectorAll('.attack-content').forEach(content => {
content.classList.remove('active');
});
document.getElementById(`${attackType}-content`).classList.add('active');
// Initialize chart for this tab if needed
this.initializeTabChart(attackType);
// ✅ Add this (bind events for the newly activated tab)
this.bindAttacksPageEvents(attackType);
if (prev && prev !== attackType) {
track('attack_tab_switch', {
from: prev,
to: attackType,
page: 'privacy_attacks'
});
}
}
initializeCharts() {
this.initializeMembershipChart();
this.initializeComparisonChart();
}
initializeMembershipChart() {
const ctx = document.getElementById('membership-chart');
if (!ctx) return;
this.charts.membership = new Chart(ctx, {
type: 'line',
data: {
labels: ['ε=0.5', 'ε=1.0', 'ε=2.0', 'ε=3.0', 'ε=5.0', 'ε=8.0', 'ε=∞'],
datasets: [{
label: 'Attack Success Rate',
data: [52, 58, 65, 72, 78, 83, 87],
borderColor: '#ff6b6b',
backgroundColor: 'rgba(255, 107, 107, 0.1)',
tension: 0.4,
fill: true
}, {
label: 'Random Guessing',
data: [50, 50, 50, 50, 50, 50, 50],
borderColor: '#666',
borderDash: [5, 5],
fill: false
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Membership Inference Attack Success vs Privacy Budget'
},
legend: {
display: true
}
},
scales: {
y: {
beginAtZero: true,
max: 100,
title: {
display: true,
text: 'Attack Success Rate (%)'
}
},
x: {
title: {
display: true,
text: 'Privacy Budget (ε)'
}
}
}
}
});
}
initializeComparisonChart() {
const ctx = document.getElementById('comparison-chart');
if (!ctx) return;
this.charts.comparison = new Chart(ctx, {
type: 'radar',
data: {
labels: ['Membership Inference', 'Data Reconstruction', 'Model Inversion', 'Property Inference', 'Linkage Attack'],
datasets: [{
label: 'No Privacy (ε=∞)',
data: [87, 92, 78, 83, 89],
borderColor: '#d32f2f',
backgroundColor: 'rgba(211, 47, 47, 0.2)',
pointBackgroundColor: '#d32f2f'
}, {
label: 'Low Privacy (ε=8.0)',
data: [72, 76, 65, 70, 74],
borderColor: '#f57c00',
backgroundColor: 'rgba(245, 124, 0, 0.2)',
pointBackgroundColor: '#f57c00'
}, {
label: 'Medium Privacy (ε=3.0)',
data: [58, 61, 52, 56, 60],
borderColor: '#fbc02d',
backgroundColor: 'rgba(251, 192, 45, 0.2)',
pointBackgroundColor: '#fbc02d'
}, {
label: 'High Privacy (ε=1.0)',
data: [42, 45, 38, 41, 44],
borderColor: '#2e7d32',
backgroundColor: 'rgba(46, 125, 50, 0.2)',
pointBackgroundColor: '#2e7d32'
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Attack Success Rates Across Different Privacy Levels'
}
},
scales: {
r: {
beginAtZero: true,
max: 100,
ticks: {
stepSize: 20
}
}
}
}
});
}
initializeTabChart(attackType) {
if (attackType === 'reconstruction') {
this.initializeReconstructionChart();
} else if (attackType === 'property') {
this.initializePropertyChart();
} else if (attackType === 'linkage') {
this.initializeLinkageChart();
}
}
initializeReconstructionChart() {
const ctx = document.getElementById('reconstruction-chart');
if (!ctx || this.charts.reconstruction) return;
this.charts.reconstruction = new Chart(ctx, {
type: 'bar',
data: {
labels: ['No Noise', 'Low Noise (σ=0.5)', 'Medium Noise (σ=1.0)', 'High Noise (σ=2.0)', 'Very High Noise (σ=3.0)'],
datasets: [{
label: 'Reconstruction Quality (SSIM)',
data: [0.95, 0.78, 0.52, 0.31, 0.18],
backgroundColor: ['#d32f2f', '#f57c00', '#fbc02d', '#689f38', '#2e7d32'],
borderWidth: 1
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Data Reconstruction Quality vs Noise Level'
}
},
scales: {
y: {
beginAtZero: true,
max: 1,
title: {
display: true,
text: 'Reconstruction Quality (SSIM Score)'
}
}
}
}
});
}
initializePropertyChart() {
const ctx = document.getElementById('property-chart');
if (!ctx || this.charts.property) return;
this.charts.property = new Chart(ctx, {
type: 'doughnut',
data: {
labels: ['Correctly Inferred', 'Incorrectly Inferred', 'Uncertain'],
datasets: [{
data: [52, 18, 30],
backgroundColor: ['#d32f2f', '#f57c00', '#2e7d32'],
borderWidth: 2
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Property Inference Attack Results'
},
legend: {
position: 'bottom'
}
}
}
});
}
initializeLinkageChart() {
const ctx = document.getElementById('linkage-chart');
if (!ctx || this.charts.linkage) return;
this.charts.linkage = new Chart(ctx, {
type: 'scatter',
data: {
datasets: [{
label: 'Successful Links',
data: [
{x: 1, y: 45}, {x: 2, y: 52}, {x: 3, y: 61}, {x: 4, y: 68}, {x: 5, y: 74},
{x: 6, y: 79}, {x: 7, y: 83}, {x: 8, y: 86}, {x: 9, y: 89}, {x: 10, y: 91}
],
backgroundColor: '#d32f2f',
borderColor: '#d32f2f'
}]
},
options: {
responsive: true,
maintainAspectRatio: false,
plugins: {
title: {
display: true,
text: 'Linkage Attack Success vs Privacy Budget'
}
},
scales: {
x: {
title: {
display: true,
text: 'Privacy Budget (ε)'
},
min: 0,
max: 11
},
y: {
title: {
display: true,
text: 'Successful Links (%)'
},
min: 0,
max: 100
}
}
}
});
}
// Attack simulation functions
updateMembershipDemo() {
const privacyLevel = parseInt(document.getElementById('privacy-level-slider').value);
// Calculate attack success based on privacy level (1=highest privacy, 5=lowest)
const successRates = [45, 52, 65, 78, 87]; // Success rates for each privacy level
const successRate = successRates[privacyLevel - 1];
// Update confidence differences based on privacy
const confidenceDiffs = [8, 12, 18, 24, 28]; // Confidence differences
const trainingConf = [76, 80, 86, 92, 96]; // Training confidence
const testConf = trainingConf.map((tc, i) => tc - confidenceDiffs[i]); // Test confidence
const currentTrainingConf = trainingConf[privacyLevel - 1];
const currentTestConf = testConf[privacyLevel - 1];
const currentDiff = confidenceDiffs[privacyLevel - 1];
// Update visual elements
document.getElementById('training-confidence').style.width = `${currentTrainingConf}%`;
document.getElementById('training-confidence').textContent = `${currentTrainingConf}%`;
document.getElementById('test-confidence').style.width = `${currentTestConf}%`;
document.getElementById('test-confidence').textContent = `${currentTestConf}%`;
document.getElementById('confidence-diff').textContent = `${currentDiff}%`;
// Update success rate circle
document.getElementById('membership-success').textContent = `${successRate}%`;
// Update circle color based on success rate
const circle = document.getElementById('success-rate-circle');
if (successRate < 55) {
circle.style.background = 'linear-gradient(135deg, #28a745, #20c997)'; // Green - good privacy
} else if (successRate < 70) {
circle.style.background = 'linear-gradient(135deg, #ffc107, #fd7e14)'; // Yellow - medium privacy
} else {
circle.style.background = 'linear-gradient(135deg, #dc3545, #fd7e14)'; // Red - poor privacy
}
// Update explanation text
const explanations = [
"Excellent! With very high privacy protection, the attacker can barely do better than random guessing (50%). Your data is well protected!",
"Great! High privacy protection makes the attack much less effective. The confidence differences are small and hard to exploit.",
"With medium privacy protection, the attacker can still succeed 65% of the time. Consider increasing privacy for sensitive data.",
"Low privacy protection allows attackers to succeed most of the time. The model shows clear differences between training and test data.",
"Very low privacy means the attack is highly successful. The model 'remembers' training data too well, making membership easy to detect."
];
document.getElementById('privacy-explanation').textContent = explanations[privacyLevel - 1];
}
updateReconstructionAttack() {
const clipping = parseFloat(document.getElementById('recon-clipping-slider').value);
const noise = parseFloat(document.getElementById('recon-noise-slider').value);
// Calculate reconstruction quality (SSIM score)
const baseQuality = 0.95;
const clippingReduction = (5 - clipping) * 0.08;
const noiseReduction = noise * 0.22;
const quality = Math.max(0.05, baseQuality - clippingReduction - noiseReduction);
const ssimScore = quality.toFixed(2);
// Update SSIM score display
const ssimElement = document.getElementById('ssim-score');
if (ssimElement) {
ssimElement.textContent = ssimScore;
ssimElement.style.color = quality > 0.7 ? '#dc3545' : quality > 0.4 ? '#f57c00' : '#28a745';
}
// Update quality badge
const qualityElement = document.getElementById('recon-quality');
if (qualityElement) {
if (quality > 0.7) {
qualityElement.textContent = '❌ High Quality (Vulnerable!)';
qualityElement.className = 'reconstruction-quality quality-high';
} else if (quality > 0.4) {
qualityElement.textContent = '⚠️ Medium Quality';
qualityElement.className = 'reconstruction-quality quality-medium';
} else {
qualityElement.textContent = '✅ Low Quality (Protected!)';
qualityElement.className = 'reconstruction-quality quality-low';
}
}
// Calculate privacy level
const epsilon = Math.max(0.5, 10 - (clipping * 0.5 + noise * 2));
const privacyStatus = document.getElementById('privacy-status');
if (privacyStatus) {
if (epsilon > 6) {
privacyStatus.textContent = `❌ Low (ε ≈ ${epsilon.toFixed(1)})`;
privacyStatus.style.color = '#dc3545';
} else if (epsilon > 3) {
privacyStatus.textContent = `⚠️ Medium (ε ≈ ${epsilon.toFixed(1)})`;
privacyStatus.style.color = '#f57c00';
} else {
privacyStatus.textContent = `✅ High (ε ≈ ${epsilon.toFixed(1)})`;
privacyStatus.style.color = '#28a745';
}
}
// Update attack success rate
const attackSuccess = Math.round(quality * 100);
const attackSuccessElement = document.getElementById('attack-success');
if (attackSuccessElement) {
attackSuccessElement.textContent = `${attackSuccess}%`;
attackSuccessElement.style.color = attackSuccess > 70 ? '#dc3545' : attackSuccess > 40 ? '#f57c00' : '#28a745';
}
// Update reconstructed image visualization
this.updateReconstructedImage(quality, noise);
// Update explanation
const explanationElement = document.getElementById('recon-explanation');
if (explanationElement) {
if (quality > 0.7) {
explanationElement.textContent = '⚠️ Without sufficient privacy protection, attackers can reconstruct training images with high fidelity from gradient information alone!';
explanationElement.style.background = '#fff3cd';
explanationElement.style.borderLeft = '4px solid #ffc107';
} else if (quality > 0.4) {
explanationElement.textContent = '🛡️ Medium privacy protection degrades reconstruction quality, but some features may still be visible. Consider increasing noise level.';
explanationElement.style.background = '#fff3e0';
explanationElement.style.borderLeft = '4px solid #f57c00';
} else {
explanationElement.textContent = '✅ Excellent! With strong differential privacy, reconstructed images are too noisy to reveal sensitive information. Training data is well protected!';
explanationElement.style.background = '#e8f5e9';
explanationElement.style.borderLeft = '4px solid #28a745';
}
}
}
updateReconstructedImage(quality, noise) {
const reconstructedImg = document.getElementById('reconstructed-img');
const privacyOverlay = document.getElementById('privacy-overlay');
const leakStatus = document.getElementById('leak-status');
const modelPrivacyLevel = document.getElementById('model-privacy-level');
if (!reconstructedImg) return;
// Calculate epsilon for display
const epsilon = Math.max(0.5, 10 - (parseFloat(document.getElementById('recon-clipping-slider').value) * 0.5 + noise * 2));
if (modelPrivacyLevel) {
modelPrivacyLevel.textContent = `ε = ${epsilon.toFixed(1)}`;
}
if (quality < 0.4) {
// High privacy - show heavily obscured/protected image with overlay
const svg = `data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 500'%3E%3Cdefs%3E%3Cfilter id='heavynoise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='${1.5 + noise * 0.5}' numOctaves='8' /%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3ClinearGradient id='protectgrad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23e8f5e9;stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:%23c8e6c9;stop-opacity:1' /%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='400' height='500' fill='url(%23protectgrad)'/%3E%3Crect width='400' height='500' fill='gray' opacity='0.95' filter='url(%23heavynoise)'/%3E%3C/svg%3E`;
reconstructedImg.src = svg;
if (privacyOverlay) {
privacyOverlay.style.display = 'flex';
privacyOverlay.innerHTML = '<div style="font-size: 3rem;">🔒</div><div>PROTECTED</div>';
}
if (leakStatus) {
leakStatus.innerHTML = '✅ ATTACK<br/>FAILED!';
leakStatus.style.color = '#28a745';
}
} else if (quality < 0.7) {
// Medium privacy - show partially obscured image
const svg = `data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 500'%3E%3Cdefs%3E%3Cfilter id='mednoise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='${0.8 + noise * 0.3}' numOctaves='5' /%3E%3CfeColorMatrix type='saturate' values='0.2'/%3E%3C/filter%3E%3ClinearGradient id='medgrad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23fff3e0;stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:%23ffe0b2;stop-opacity:1' /%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='400' height='500' fill='url(%23medgrad)'/%3E%3Crect width='400' height='500' fill='gray' opacity='${0.5 + noise * 0.15}' filter='url(%23mednoise)'/%3E%3Cellipse cx='200' cy='180' rx='80' ry='90' fill='%238b6f47' opacity='0.25'/%3E%3Crect x='140' y='260' width='120' height='160' fill='%236b8e6b' opacity='0.2' rx='8'/%3E%3C/svg%3E`;
reconstructedImg.src = svg;
if (privacyOverlay) {
privacyOverlay.style.display = 'none';
}
if (leakStatus) {
leakStatus.innerHTML = '⚠️ PARTIAL<br/>LEAK';
leakStatus.style.color = '#f57c00';
}
} else {
// Low privacy - show clear reconstruction (vulnerable)
const svg = `data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 500'%3E%3Cdefs%3E%3Cfilter id='lightnoise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='${0.3 + noise * 0.1}' numOctaves='2' /%3E%3CfeColorMatrix type='saturate' values='0.4'/%3E%3C/filter%3E%3ClinearGradient id='vulngrad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%23e8b4b8;stop-opacity:1' /%3E%3Cstop offset='100%25' style='stop-color:%23d4a5a8;stop-opacity:1' /%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='400' height='500' fill='url(%23vulngrad)'/%3E%3Crect width='400' height='500' fill='gray' opacity='${0.15 + noise * 0.05}' filter='url(%23lightnoise)'/%3E%3Cellipse cx='200' cy='180' rx='80' ry='90' fill='%238b6f47' opacity='0.5'/%3E%3Crect x='140' y='260' width='120' height='160' fill='%236b8e6b' opacity='0.4' rx='8'/%3E%3Ccircle cx='280' cy='140' r='35' fill='%23fff' opacity='0.2'/%3E%3Crect x='80' y='350' width='240' height='100' fill='%23a0826d' opacity='0.3' rx='6'/%3E%3C/svg%3E`;
reconstructedImg.src = svg;
if (privacyOverlay) {
privacyOverlay.style.display = 'none';
}
if (leakStatus) {
leakStatus.innerHTML = '🚨 LEAKED<br/>PRIVATE DATA!';
leakStatus.style.color = '#c1272d';
}
}
}
updateLinkageAttack() {
const quality = parseInt(document.getElementById('linkage-quality-slider').value);
const privacySlider = parseInt(document.getElementById('linkage-privacy-slider').value);
// Calculate epsilon: epsilon = 11 - privacySlider
// privacySlider = 1 → ε = 10.0 (LOW privacy, HIGH success)
// privacySlider = 10 → ε = 1.0 (HIGH privacy, LOW success)
const epsilon = 11 - privacySlider;
// Calculate linkage success
// Higher quality = easier to link (increases success)
// Higher epsilon (lower privacy) = easier to link (increases success)
const qualityBonus = quality * 10; // Quality factor (0-60)
const epsilonBonus = epsilon * 4; // Epsilon: 1.0 (high privacy) = 4, 10.0 (low privacy) = 40
// Base success is 20%, add quality scaled by epsilon influence
const successRate = Math.max(15, Math.min(95, 20 + qualityBonus * (epsilon / 10)));
document.getElementById('linkage-success').textContent = `${Math.round(successRate)}%`;
// Update confidence
const confidence = document.getElementById('linkage-confidence');
if (successRate > 75) {
confidence.textContent = 'High';
} else if (successRate > 50) {
confidence.textContent = 'Medium';
} else {
confidence.textContent = 'Low';
}
}
}
// Attack simulation functions (called by buttons)
function updatePrivacyDemo() {
const simulator = window.attackSimulator;
simulator.updateMembershipDemo();
// Add visual feedback
const button = event.target;
const originalText = button.textContent;
button.textContent = 'Updating...';
button.disabled = true;
setTimeout(() => {
button.textContent = originalText;
button.disabled = false;
}, 800);
}
function runReconstructionAttack() {
const simulator = window.attackSimulator;
simulator.updateReconstructionAttack();
// Update the canvas examples
updateCurrentReconstructionExamples();
// Add visual feedback
const button = event.target;
const originalText = button.textContent;
button.textContent = 'Reconstructing...';
button.disabled = true;
setTimeout(() => {
button.textContent = originalText;
button.disabled = false;
}, 2000);
}
function runInversionAttack() {
const classSelect = document.getElementById('inversion-class-select');
const privacySlider = document.getElementById('inversion-privacy-slider');
const selectedClass = classSelect.value;
const sliderValue = parseInt(privacySlider.value);
// Invert the slider: slider 1 = high privacy (ε=1), slider 10 = low privacy (ε=10)
const privacyLevel = 11 - sliderValue; // For drawing function
const epsilon = sliderValue; // epsilon matches slider position now
const confidence = Math.max(30, 35 + (sliderValue * 6)); // Higher slider = higher confidence
// Update displays
document.getElementById('inversion-confidence').textContent = `${confidence}%`;
document.getElementById('inversion-class').textContent = classSelect.options[classSelect.selectedIndex].text;
// Update privacy bar
const privacyLevels = ['Very High', 'Very High', 'High', 'High', 'Medium', 'Medium', 'Low', 'Low', 'Very Low', 'Very Low'];
updateInversionPrivacyBar(sliderValue, privacyLevels[sliderValue - 1]);
// Update explanation based on slider value (1=high privacy, 10=low privacy)
const explanation = document.getElementById('inversion-explanation');
if (explanation) {
if (sliderValue <= 3) {
explanation.textContent = '✅ High privacy! The inverted features are very noisy and don\'t reveal clear class characteristics. Training data is well protected!';
explanation.style.background = '#e8f5e9';
explanation.style.borderLeft = '4px solid #4caf50';
} else if (sliderValue <= 6) {
explanation.textContent = '⚠️ Medium privacy. Some class features are visible but degraded. Consider increasing privacy for sensitive data.';
explanation.style.background = '#fff3e0';
explanation.style.borderLeft = '4px solid #ff9800';
} else {
explanation.textContent = '❌ Low privacy! The model reveals clear, detailed class features. An attacker can learn what the model associates with this class.';
explanation.style.background = '#ffebee';
explanation.style.borderLeft = '4px solid #f44336';
}
}
// Draw the inverted features on canvas
drawInvertedFeatures(selectedClass, privacyLevel);
// Add visual feedback
const button = event.target;
const originalText = button.textContent;
button.textContent = 'Generating...';
button.disabled = true;
setTimeout(() => {
button.textContent = originalText;
button.disabled = false;
}, 1800);
}
function getPrivacyLevelText(level) {
if (level <= 2) return 'Very High';
if (level <= 4) return 'High';
if (level <= 6) return 'Medium';
if (level <= 8) return 'Low';
return 'Very Low';
}
function updateInversionPrivacyBar(sliderValue, privacyText) {
// Privacy bar has been removed - function kept for compatibility
}
function drawInvertedFeatures(classDigit, privacyLevel) {
const canvas = document.getElementById('inversion-canvas');
if (!canvas) return;
const ctx = canvas.getContext('2d');
const width = canvas.width;
const height = canvas.height;
ctx.clearRect(0, 0, width, height);
// Background
ctx.fillStyle = '#e3f2fd';
ctx.fillRect(0, 0, width, height);
// Calculate noise level based on privacy (1=high privacy/more noise, 10=low privacy/less noise)
const noiseLevel = (privacyLevel - 1) / 9; // 0 to 1, where 0 = most noise
const clarity = 1 - noiseLevel; // Inverted: high privacy = low clarity
// Draw the digit with varying clarity
ctx.save();
ctx.globalAlpha = Math.max(0.3, clarity);
// Draw digit based on selected class - scale font size based on canvas size
ctx.fillStyle = '#1976d2';
ctx.font = `bold ${Math.floor(width * 0.6)}px Arial`;
ctx.textAlign = 'center';
ctx.textBaseline = 'middle';
ctx.fillText(classDigit, width / 2, height / 2);
ctx.restore();
// Add noise based on privacy level
if (privacyLevel <= 7) {
const noiseIntensity = (7 - privacyLevel) / 7; // More noise for higher privacy
addCanvasNoise(ctx, noiseIntensity, width, height);
}
// For very high privacy, add blur effect
if (privacyLevel <= 3) {
ctx.filter = `blur(${(4 - privacyLevel) * 4}px)`;
ctx.drawImage(canvas, 0, 0);
ctx.filter = 'none';
}
}
function addCanvasNoise(ctx, intensity, width, height) {
if (intensity < 0.1) return;
const imageData = ctx.getImageData(0, 0, width, height);
const data = imageData.data;
for (let i = 0; i < data.length; i += 4) {
const noise = (Math.random() - 0.5) * intensity * 200;
data[i] += noise; // R
data[i + 1] += noise; // G
data[i + 2] += noise; // B
}
ctx.putImageData(imageData, 0, 0);
}
function runPropertyAttack() {
const propertyType = document.getElementById('property-type').value;
const accessLevel = parseInt(document.getElementById('property-access-slider').value);
const privacySlider = document.getElementById('property-privacy-slider');
const sliderValue = privacySlider ? parseInt(privacySlider.value) : 5;
// Calculate property inference accuracy based on privacy and access
// Lower privacy (higher slider value) = more accurate inference
const privacyPenalty = (11 - sliderValue) * 5; // High privacy reduces accuracy
const accessBonus = accessLevel * 8;
const baseAccuracy = 50;
const accuracy = Math.min(95, baseAccuracy + accessBonus + (sliderValue * 3));
// Update uncertainty based on privacy (high privacy = high uncertainty)
const uncertainty = Math.max(2, 20 - sliderValue * 1.5 - accessLevel * 2);
document.getElementById('property-male').textContent = `${52}% ± ${Math.round(uncertainty)}%`;
document.getElementById('property-female').textContent = `${48}% ± ${Math.round(uncertainty)}%`;
// Update privacy bar
const privacyLevels = ['Very High', 'Very High', 'High', 'High', 'Medium', 'Medium', 'Low', 'Low', 'Very Low', 'Very Low'];
updatePropertyPrivacyBar(sliderValue, privacyLevels[sliderValue - 1]);
// Update explanation
const explanation = document.getElementById('property-explanation');
if (explanation) {
if (sliderValue <= 3) {
explanation.textContent = '✅ High privacy! The attacker cannot accurately infer dataset properties. Large confidence intervals show high uncertainty.';
explanation.style.background = '#e8f5e9';
explanation.style.borderLeft = '4px solid #4caf50';
} else if (sliderValue <= 6) {
explanation.textContent = '⚠️ Medium privacy. The attacker can infer properties with moderate accuracy. Consider increasing privacy for sensitive datasets.';
explanation.style.background = '#fff3e0';
explanation.style.borderLeft = '4px solid #ff9800';
} else {
explanation.textContent = '❌ Low privacy! The attacker can accurately infer sensitive dataset properties like demographic distributions. Privacy breach risk!';
explanation.style.background = '#ffebee';
explanation.style.borderLeft = '4px solid #f44336';
}
}
// Add visual feedback
const button = event.target;
const originalText = button.textContent;
button.textContent = 'Analyzing...';
button.disabled = true;
setTimeout(() => {
button.textContent = originalText;
button.disabled = false;
}, 2200);
}
function updatePropertyPrivacyBar(sliderValue, privacyText) {
// Privacy bar has been removed - function kept for compatibility
}
function runLinkageAttack() {
const simulator = window.attackSimulator;
simulator.updateLinkageAttack();
// Add visual feedback
const button = event.target;
const originalText = button.textContent;
button.textContent = 'Linking Data...';
button.disabled = true;
setTimeout(() => {
button.textContent = originalText;
button.disabled = false;
}, 2500);
}
// Draw reconstruction examples on canvases
function drawReconstructionExamples() {
// Example data patterns
const examples = [
{ // Face-like
draw: (ctx, noise) => {
// Head
ctx.fillStyle = `rgba(139, 111, 71, ${1 - noise * 0.8})`;
ctx.beginPath();
ctx.ellipse(60, 45, 30, 35, 0, 0, Math.PI * 2);
ctx.fill();
// Eyes
ctx.fillStyle = `rgba(50, 50, 50, ${1 - noise * 0.9})`;
ctx.fillRect(45 + Math.random() * noise * 5, 35, 8, 8);
ctx.fillRect(67 + Math.random() * noise * 5, 35, 8, 8);
// Nose
ctx.fillStyle = `rgba(100, 80, 60, ${1 - noise * 0.85})`;
ctx.fillRect(57, 50, 6, 12);
// Mouth
ctx.fillStyle = `rgba(80, 60, 50, ${1 - noise * 0.9})`;
ctx.fillRect(48, 70, 24, 5);
// Body
ctx.fillStyle = `rgba(107, 142, 107, ${1 - noise * 0.8})`;
ctx.fillRect(35, 85, 50, 30);
}
},
{ // Eye-like medical scan
draw: (ctx, noise) => {
// Dark background
ctx.fillStyle = '#1a1a1a';
ctx.fillRect(0, 0, 120, 120);
// Eye socket (bright)
ctx.fillStyle = `rgba(255, 200, 100, ${0.9 - noise * 0.7})`;
ctx.beginPath();
ctx.ellipse(60, 60, 35, 30, 0, 0, Math.PI * 2);
ctx.fill();
// Pupil (dark)
ctx.fillStyle = `rgba(20, 20, 20, ${1 - noise * 0.8})`;
ctx.beginPath();
ctx.ellipse(60, 60, 15, 15, 0, 0, Math.PI * 2);
ctx.fill();
// Highlight
ctx.fillStyle = `rgba(255, 255, 255, ${0.8 - noise * 0.7})`;
ctx.beginPath();
ctx.arc(55, 52, 5, 0, Math.PI * 2);
ctx.fill();
}
},
{ // Medical scan with bright center
draw: (ctx, noise) => {
// Dark background
ctx.fillStyle = '#0a0a0a';
ctx.fillRect(0, 0, 120, 120);
// Bright center (hot spot)
const gradient = ctx.createRadialGradient(60, 60, 5, 60, 60, 40);
gradient.addColorStop(0, `rgba(255, 100, 50, ${1 - noise * 0.6})`);
gradient.addColorStop(0.5, `rgba(200, 80, 40, ${0.8 - noise * 0.6})`);
gradient.addColorStop(1, `rgba(100, 40, 20, ${0.3 - noise * 0.3})`);
ctx.fillStyle = gradient;
ctx.fillRect(0, 0, 120, 120);
// Green markers
ctx.fillStyle = `rgba(100, 255, 100, ${0.7 - noise * 0.6})`;
ctx.fillRect(20, 20, 8, 8);
ctx.fillRect(92, 20, 8, 8);
ctx.fillRect(20, 92, 8, 8);
ctx.fillRect(92, 92, 8, 8);
}
},
{ // Computer/object
draw: (ctx, noise) => {
// Screen
ctx.fillStyle = `rgba(100, 150, 255, ${0.9 - noise * 0.7})`;
ctx.fillRect(30, 20, 60, 45);
// Screen content
ctx.fillStyle = `rgba(200, 220, 255, ${0.8 - noise * 0.7})`;
ctx.fillRect(35, 25, 50, 35);
// Base
ctx.fillStyle = `rgba(80, 80, 80, ${1 - noise * 0.8})`;
ctx.fillRect(40, 70, 40, 8);
// Stand
ctx.fillStyle = `rgba(100, 100, 100, ${1 - noise * 0.8})`;
ctx.fillRect(55, 65, 10, 15);
// Keyboard
ctx.fillStyle = `rgba(60, 60, 60, ${0.9 - noise * 0.7})`;
ctx.fillRect(20, 85, 80, 25);
}
}
];
// Draw each example at different privacy levels
examples.forEach((example, idx) => {
const exampleNum = idx + 1;
// Ground truth (original)
const originalCanvas = document.getElementById(`original-${exampleNum}`);
if (originalCanvas) {
const ctx = originalCanvas.getContext('2d');
ctx.clearRect(0, 0, 120, 120);
example.draw(ctx, 0);
}
// No privacy (nearly perfect reconstruction - privacy breach!)
const noPrivacyCanvas = document.getElementById(`no-privacy-${exampleNum}`);
if (noPrivacyCanvas) {
const ctx = noPrivacyCanvas.getContext('2d');
ctx.clearRect(0, 0, 120, 120);
example.draw(ctx, 0.02); // Almost no degradation
addNoise(ctx, 0.01, 120, 120); // Minimal noise
}
// High privacy (ε = 0.1) - complete noise/static
const highPrivacyCanvas = document.getElementById(`high-privacy-${exampleNum}`);
if (highPrivacyCanvas) {
const ctx = highPrivacyCanvas.getContext('2d');
ctx.clearRect(0, 0, 120, 120);
// Draw pure random noise - no original features visible
drawCompleteNoise(ctx, 120, 120);
}
});
// Update current setting examples
updateCurrentReconstructionExamples();
}
function updateCurrentReconstructionExamples() {
const clipping = parseFloat(document.getElementById('recon-clipping-slider')?.value || 1.0);
const noise = parseFloat(document.getElementById('recon-noise-slider')?.value || 1.0);
// Calculate quality/noise level
const quality = Math.max(0.05, 0.95 - (5 - clipping) * 0.08 - noise * 0.22);
const noiseLevel = 1 - quality;
// Calculate epsilon
const epsilon = Math.max(0.5, 10 - (clipping * 0.5 + noise * 2));
// Update epsilon display
const epsilonDisplay = document.getElementById('current-epsilon');
if (epsilonDisplay) {
epsilonDisplay.textContent = `(ε = ${epsilon.toFixed(1)})`;
}
// Example patterns (same as above)
const examples = [
{ // Face-like
draw: (ctx, noise) => {
ctx.fillStyle = `rgba(139, 111, 71, ${1 - noise * 0.8})`;
ctx.beginPath();
ctx.ellipse(60, 45, 30, 35, 0, 0, Math.PI * 2);
ctx.fill();
ctx.fillStyle = `rgba(50, 50, 50, ${1 - noise * 0.9})`;
ctx.fillRect(45 + Math.random() * noise * 5, 35, 8, 8);
ctx.fillRect(67 + Math.random() * noise * 5, 35, 8, 8);
ctx.fillStyle = `rgba(100, 80, 60, ${1 - noise * 0.85})`;
ctx.fillRect(57, 50, 6, 12);
ctx.fillStyle = `rgba(80, 60, 50, ${1 - noise * 0.9})`;
ctx.fillRect(48, 70, 24, 5);
ctx.fillStyle = `rgba(107, 142, 107, ${1 - noise * 0.8})`;
ctx.fillRect(35, 85, 50, 30);
}
},
{ // Eye-like
draw: (ctx, noise) => {
ctx.fillStyle = '#1a1a1a';
ctx.fillRect(0, 0, 120, 120);
ctx.fillStyle = `rgba(255, 200, 100, ${0.9 - noise * 0.7})`;
ctx.beginPath();
ctx.ellipse(60, 60, 35, 30, 0, 0, Math.PI * 2);
ctx.fill();
ctx.fillStyle = `rgba(20, 20, 20, ${1 - noise * 0.8})`;
ctx.beginPath();
ctx.ellipse(60, 60, 15, 15, 0, 0, Math.PI * 2);
ctx.fill();
ctx.fillStyle = `rgba(255, 255, 255, ${0.8 - noise * 0.7})`;
ctx.beginPath();
ctx.arc(55, 52, 5, 0, Math.PI * 2);
ctx.fill();
}
},
{ // Medical scan
draw: (ctx, noise) => {
ctx.fillStyle = '#0a0a0a';
ctx.fillRect(0, 0, 120, 120);
const gradient = ctx.createRadialGradient(60, 60, 5, 60, 60, 40);
gradient.addColorStop(0, `rgba(255, 100, 50, ${1 - noise * 0.6})`);
gradient.addColorStop(0.5, `rgba(200, 80, 40, ${0.8 - noise * 0.6})`);
gradient.addColorStop(1, `rgba(100, 40, 20, ${0.3 - noise * 0.3})`);
ctx.fillStyle = gradient;
ctx.fillRect(0, 0, 120, 120);
ctx.fillStyle = `rgba(100, 255, 100, ${0.7 - noise * 0.6})`;
ctx.fillRect(20, 20, 8, 8);
ctx.fillRect(92, 20, 8, 8);
ctx.fillRect(20, 92, 8, 8);
ctx.fillRect(92, 92, 8, 8);
}
},
{ // Computer
draw: (ctx, noise) => {
ctx.fillStyle = `rgba(100, 150, 255, ${0.9 - noise * 0.7})`;
ctx.fillRect(30, 20, 60, 45);
ctx.fillStyle = `rgba(200, 220, 255, ${0.8 - noise * 0.7})`;
ctx.fillRect(35, 25, 50, 35);
ctx.fillStyle = `rgba(80, 80, 80, ${1 - noise * 0.8})`;
ctx.fillRect(40, 70, 40, 8);
ctx.fillStyle = `rgba(100, 100, 100, ${1 - noise * 0.8})`;
ctx.fillRect(55, 65, 10, 15);
ctx.fillStyle = `rgba(60, 60, 60, ${0.9 - noise * 0.7})`;
ctx.fillRect(20, 85, 80, 25);
}
}
];
// Draw current setting for each example
examples.forEach((example, idx) => {
const currentCanvas = document.getElementById(`current-${idx + 1}`);
if (currentCanvas) {
const ctx = currentCanvas.getContext('2d');
ctx.clearRect(0, 0, 120, 120);
// If very high privacy (epsilon < 1.0), show mostly noise
if (epsilon < 1.0) {
// Draw mostly random noise with tiny hint of original
example.draw(ctx, 0.98);
drawCompleteNoise(ctx, 120, 120);
} else if (epsilon < 3.0) {
// High privacy - heavy noise
example.draw(ctx, noiseLevel);
addNoise(ctx, Math.min(0.85, noiseLevel * 1.2), 120, 120);
} else if (epsilon < 6.0) {
// Medium privacy - moderate noise
example.draw(ctx, noiseLevel * 0.7);
addNoise(ctx, noiseLevel * 0.8, 120, 120);
} else {
// Low privacy - more visible noise (increased from 0.4 to 0.6)
example.draw(ctx, noiseLevel * 0.4);
addNoise(ctx, Math.max(0.3, noiseLevel * 0.6), 120, 120);
}
}
});
}
function addNoise(ctx, intensity, width, height) {
if (intensity < 0.05) return;
const imageData = ctx.getImageData(0, 0, width, height);
const data = imageData.data;
// For high intensity, make it more aggressive
if (intensity > 0.7) {
// Very high noise - almost complete randomization
for (let i = 0; i < data.length; i += 4) {
const randomness = intensity * 1.5;
data[i] = Math.random() * 255 * randomness + data[i] * (1 - randomness); // R
data[i + 1] = Math.random() * 255 * randomness + data[i + 1] * (1 - randomness); // G
data[i + 2] = Math.random() * 255 * randomness + data[i + 2] * (1 - randomness); // B
}
} else {
// Normal noise addition
for (let i = 0; i < data.length; i += 4) {
const noise = (Math.random() - 0.5) * intensity * 300;
data[i] += noise; // R
data[i + 1] += noise; // G
data[i + 2] += noise; // B
}
}
ctx.putImageData(imageData, 0, 0);
}
function drawCompleteNoise(ctx, width, height) {
// Draw pure random static - complete privacy protection
const imageData = ctx.createImageData(width, height);
const data = imageData.data;
for (let i = 0; i < data.length; i += 4) {
// Random RGB values - pure noise
data[i] = Math.random() * 255; // R
data[i + 1] = Math.random() * 255; // G
data[i + 2] = Math.random() * 255; // B
data[i + 3] = 255; // A (fully opaque)
}
ctx.putImageData(imageData, 0, 0);
}
// Initialize when page loads
document.addEventListener('DOMContentLoaded', function() {
window.attackSimulator = new AttackSimulator();
// Track initial active tab
const active = document.querySelector('.attack-tab.active');
if (active) {
track('attack_tab_open', {
attack: active.dataset.attack,
page: 'privacy_attacks',
reason: 'page_load'
});
}
// Run initial updates
window.attackSimulator.updateMembershipDemo();
window.attackSimulator.updateReconstructionAttack();
window.attackSimulator.updateLinkageAttack();
// Draw reconstruction examples
setTimeout(() => {
drawReconstructionExamples();
}, 100);
// Initialize inversion canvas and privacy bar with default values
setTimeout(() => {
drawInvertedFeatures('7', 6); // Default: digit 7, privacy level 6 (slider=5, inverted to 6)
updateInversionPrivacyBar(5, 'Medium'); // Initialize privacy bar at slider position 5
updatePropertyPrivacyBar(5, 'Medium'); // Initialize property privacy bar
}, 100);
// Add event listeners for inversion attack controls
const inversionPrivacySlider = document.getElementById('inversion-privacy-slider');
if (inversionPrivacySlider) {
inversionPrivacySlider.addEventListener('input', function() {
const sliderValue = parseInt(this.value);
// Invert the slider: slider 1 = high privacy, slider 10 = low privacy
const privacyLevel = 11 - sliderValue;
const privacyLevels = ['Very High', 'Very High', 'High', 'High', 'Medium', 'Medium', 'Low', 'Low', 'Very Low', 'Very Low'];
document.getElementById('inversion-privacy').textContent = privacyLevels[sliderValue - 1];
// Update visualization in real-time
const classSelect = document.getElementById('inversion-class-select');
const selectedClass = classSelect ? classSelect.value : '7';
drawInvertedFeatures(selectedClass, privacyLevel);
// Update privacy bar indicator
updateInversionPrivacyBar(sliderValue, privacyLevels[sliderValue - 1]);
// Update explanation based on slider value (1=high privacy, 10=low privacy)
const explanation = document.getElementById('inversion-explanation');
if (explanation) {
if (sliderValue <= 3) {
explanation.textContent = '✅ High privacy! The inverted features are very noisy and don\'t reveal clear class characteristics. Training data is well protected!';
explanation.style.background = '#e8f5e9';
explanation.style.borderLeft = '4px solid #4caf50';
} else if (sliderValue <= 6) {
explanation.textContent = '⚠️ Medium privacy. Some class features are visible but degraded. Consider increasing privacy for sensitive data.';
explanation.style.background = '#fff3e0';
explanation.style.borderLeft = '4px solid #ff9800';
} else {
explanation.textContent = '❌ Low privacy! The model reveals clear, detailed class features. An attacker can learn what the model associates with this class.';
explanation.style.background = '#ffebee';
explanation.style.borderLeft = '4px solid #f44336';
}
}
});
}
// Add event listener for class selection
const inversionClassSelect = document.getElementById('inversion-class-select');
if (inversionClassSelect) {
inversionClassSelect.addEventListener('change', function() {
const privacySlider = document.getElementById('inversion-privacy-slider');
const sliderValue = privacySlider ? parseInt(privacySlider.value) : 5;
const privacyLevel = 11 - sliderValue; // Invert for drawing
drawInvertedFeatures(this.value, privacyLevel);
document.getElementById('inversion-class').textContent = this.options[this.selectedIndex].text;
});
}
// Add event listeners for property inference attack controls
const propertyPrivacySlider = document.getElementById('property-privacy-slider');
if (propertyPrivacySlider) {
propertyPrivacySlider.addEventListener('input', function() {
const sliderValue = parseInt(this.value);
const privacyLevels = ['Very High', 'Very High', 'High', 'High', 'Medium', 'Medium', 'Low', 'Low', 'Very Low', 'Very Low'];
document.getElementById('property-privacy').textContent = privacyLevels[sliderValue - 1];
// Update privacy bar in real-time
updatePropertyPrivacyBar(sliderValue, privacyLevels[sliderValue - 1]);
// Update uncertainty display in real-time
const accessLevel = parseInt(document.getElementById('property-access-slider').value);
const uncertainty = Math.max(2, 20 - sliderValue * 1.5 - accessLevel * 2);
document.getElementById('property-male').textContent = `${52}% ± ${Math.round(uncertainty)}%`;
document.getElementById('property-female').textContent = `${48}% ± ${Math.round(uncertainty)}%`;
// Update explanation
const explanation = document.getElementById('property-explanation');
if (explanation) {
if (sliderValue <= 3) {
explanation.textContent = '✅ High privacy! The attacker cannot accurately infer dataset properties. Large confidence intervals show high uncertainty.';
explanation.style.background = '#e8f5e9';
explanation.style.borderLeft = '4px solid #4caf50';
} else if (sliderValue <= 6) {
explanation.textContent = '⚠️ Medium privacy. The attacker can infer properties with moderate accuracy. Consider increasing privacy for sensitive datasets.';
explanation.style.background = '#fff3e0';
explanation.style.borderLeft = '4px solid #ff9800';
} else {
explanation.textContent = '❌ Low privacy! The attacker can accurately infer sensitive dataset properties like demographic distributions. Privacy breach risk!';
explanation.style.background = '#ffebee';
explanation.style.borderLeft = '4px solid #f44336';
}
}
});
}
// Add event listener for model access slider
const propertyAccessSlider = document.getElementById('property-access-slider');
if (propertyAccessSlider) {
propertyAccessSlider.addEventListener('input', function() {
const accessLevel = parseInt(this.value);
const accessLevels = ['Black-box', 'Gray-box', 'White-box'];
document.getElementById('property-access').textContent = accessLevels[accessLevel - 1];
// Update uncertainty display when access changes
const privacySlider = document.getElementById('property-privacy-slider');
const sliderValue = privacySlider ? parseInt(privacySlider.value) : 5;
const uncertainty = Math.max(2, 20 - sliderValue * 1.5 - accessLevel * 2);
document.getElementById('property-male').textContent = `${52}% ± ${Math.round(uncertainty)}%`;
document.getElementById('property-female').textContent = `${48}% ± ${Math.round(uncertainty)}%`;
});
}
});
|