MQL5-Google-Onedrive/SSH_KEY_INVESTIGATION.md

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
   • Step-by-step instructions
   • What to do if you find the key

2. Full Audit Report

   • docs/SSH_KEY_AUDIT.md
   • Complete investigation details
   • Security recommendations
   • Best practices

3. Updated SSH Setup Guide

   • 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 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
• Full Report: docs/SSH_KEY_AUDIT.md

---

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