🏆 MehrGuard v2.0.36 - KotlinConf 2025-2026 Contest Submission

🛡️ Mehr Guard v2.0.36 — KotlinConf 2025-2026 Contest Submission

Privacy-first QR phishing detection across 5 Kotlin Multiplatform targets.

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📥 Downloads

Platform	Artifact	Notes
Android	MehrGuard-2.0.36-debug.apk	Debug-signed, ready to install
iOS	Build from Xcode	See Quick Start below
Web	Live Demo	No install required
Desktop	./gradlew :desktopApp:run	JDK 17+ required

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⚡ 60-Second Judge Path

1. Download APK → Install on Android 8+ device
2. Open Web Demo → Paste paypa1-secure.tk to test
3. Run ./judge/verify_offline.sh → Proves zero network calls

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📋 Key Files

File	Purpose
JUDGE_QUICKSTART.md	5-minute verification guide
ESSAY.md	Competition essay (327 words)
JUDGE_VERIFICATION_SUMMARY.md	Audit results with commands
docs/VIDEO_DEMO.md	Video demonstration

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🔐 APK Verification

shasum -a 256 MehrGuard-2.0.36-debug.apk
# fada638e9bb60d833e0ed2b422b69f8291bc508f3c5873e474c68d6c2b74fad3

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✅ Verified Claims

• 100% Offline — Zero network calls during analysis
• 87% F1 Score — Precision 85%, Recall 89%
• <5ms Latency — P50 median analysis time
• 5 Platforms — Android, iOS, Desktop, Web JS, Web Wasm

🏆 Final Submission - v1.7.0

KotlinConf 2025-2026 Student Coding Competition - Final Submission

🎯 Score Target: 100/100

This release represents the final submission version of QR-SHIELD.

✨ Key Features

• 100% Offline — No URL ever leaves your device
• Ensemble ML — 3 models combined (LR + Boosting + Rules)
• 25+ Heuristics — Homographs, typosquats, suspicious TLDs
• 4 Platforms — Android, iOS, Desktop, Web from one codebase
• <5ms Analysis — Real-time feedback during scanning

📊 Code Metrics

• ~26,000 LOC total
• ~11,000 LOC shared (100% business logic)
• 89% test coverage
• 1000+ tests

📁 Key Files

• SUBMISSION_CHECKLIST.md — Judge verification guide
• docs/SHARED_CODE_REPORT.md — KMP code sharing proof
• docs/THREAT_MODEL.md — Detection capabilities
• docs/EVALUATION.md — Accuracy methodology

🔗 Quick Verification

./judge/verify_all.sh

QR-SHIELD v1.1.0

🛡️ QR-SHIELD v1.1.0

Protect yourself from QRishing attacks with intelligent QR code scanning.

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📥 Downloads

Platform	Download	Requirements
Android	📱 Download APK	Android 8.0+ (API 26)
iOS	🍎 Use Web App	Safari + Add to Home Screen
Web	🌐 Try Online	Modern browser

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🚀 Installation

Android

1. Download QRShield-1.1.0-release.apk
2. Enable 'Install from unknown sources' in Settings
3. Open the APK file to install

iOS (Free - No Developer Account Needed!)

1. Open Safari on your iPhone/iPad
2. Go to: https://raoof128.github.io/QDKMP-KotlinConf-2026-/
3. Tap Share button → Add to Home Screen
4. The app works just like a native app!

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✨ Features

• 🔍 25+ Security Heuristics - Comprehensive URL analysis
• 🤖 ML-Powered Detection - On-device phishing scoring
• 🏢 Brand Impersonation Detection - 500+ brands monitored
• 🔒 100% Offline - No data leaves your device
• 🌍 Cross-Platform - Android, iOS (Web), Desktop, Web

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🔐 Security Verification

SHA-256: 3b5b8c75a1e54437f0071feae1e4a56f8aaab7b75f302e67ef0321d63240d878

Verify with: shasum -a 256 QRShield-1.1.0-release.apk

🏁 Contest Start

First commit marking the start of the KotlinConf 2025-2026 Student Coding Competition entry.

This release tags the initial commit to prove all work was created within the contest period.