# SSH Key Investigation Summary

**Date**: February 18, 2026  
**Requested by**: @mouy-leng  
**Issue**: Investigation of ECDSA SSH key usage

---

## 🔍 Quick Answer

The SSH key you asked about:
```
ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBLjxGzOnZXj7/4tvo0PkaMFMYVzr+0lK2ZruE0FH4upnCFo//O140zhutN61/4qiDGD+ESsKTsUJil0q9o72dXQ=
```

**Is NOT in this repository** ✅

---

## 📋 What We Found

✅ **Searched everywhere in the repository**
- All code files
- All configuration files
- Complete git history
- GitHub Actions workflows

✅ **Result**: The key is not stored in this repository

---

## 🎯 Where to Look Next

The key might be configured in:

1. **GitHub Deploy Keys** ⭐ (Most likely)
   - Check: https://github.com/A6-9V/MQL5-Google-Onedrive/settings/keys

2. **Your Personal SSH Keys**
   - Check: https://github.com/settings/keys

3. **GitHub Actions Secrets**
   - Check: https://github.com/A6-9V/MQL5-Google-Onedrive/settings/secrets/actions

4. **VPS/Server** (if you have one)
   - Check: `~/.ssh/authorized_keys` on your server

---

## 📚 Documentation Created

For detailed information, see:

1. **Quick Action Guide** (Start here!)
   - [`docs/SSH_KEY_INVESTIGATION_QUICK_REF.md`](docs/SSH_KEY_INVESTIGATION_QUICK_REF.md)
   - Step-by-step instructions
   - What to do if you find the key

2. **Full Audit Report**
   - [`docs/SSH_KEY_AUDIT.md`](docs/SSH_KEY_AUDIT.md)
   - Complete investigation details
   - Security recommendations
   - Best practices

3. **Updated SSH Setup Guide**
   - [`SSH_SETUP.md`](SSH_SETUP.md)
   - Key management section added
   - Current repository SSH configuration

---

## 💡 Key Recommendations

1. **If you find the key and still need it**:
   - Document its purpose
   - Consider migrating to Ed25519 (more secure)
   - Store in password manager

2. **If you don't need it anymore**:
   - Remove from GitHub settings
   - Remove from any servers
   - No further action needed

3. **If you can't find it**:
   - It may have already been removed
   - No action needed

---

## ℹ️ Current Repository Configuration

This repository already uses a **more secure Ed25519 key**:
```
ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIEeSLWKibLOYIOA794iClIT7WU/32N1BbfzHR8hopSGG jules@google.com
```

See [`SSH_SETUP.md`](SSH_SETUP.md) for details.

---

## 🔐 Security Notes

- **Ed25519** is more secure than ECDSA
- Rotate SSH keys every 6-12 months
- Remove unused keys
- Never commit private keys to repository

---

## 📞 Need More Info?

Read the detailed guides:
- **Quick Start**: [`docs/SSH_KEY_INVESTIGATION_QUICK_REF.md`](docs/SSH_KEY_INVESTIGATION_QUICK_REF.md)
- **Full Report**: [`docs/SSH_KEY_AUDIT.md`](docs/SSH_KEY_AUDIT.md)

---

**Investigation completed by**: GitHub Copilot Agent  
**Status**: ⚠️ Awaiting your verification of GitHub settings