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==============================================================
🛠️
**Command-Line Arguments**
Usage:
--------------------------------------------------------------
./e-N-c-R-y-P-t peer.crt peer.key ListenPort [ PeerHost PeerPort ]
Where:
--------------------------------------------------------------
1. **peer.crt**: 📄 Path to your public certificate file in PEM format.
2. **peer.key**: 🔑 Path to your private key file in PEM format.
3. **ListenPort**: 🎧 Port number on which the application will listen for incoming connections.
4. **PeerHost** *(optional)*: 🌐 Hostname or IP address of a peer to connect to.
5. **PeerPort** *(optional)*: 🌐 Port number on the peer host to connect to.
==============================================================
🛠️
**Generating Certificates with OpenSSL**
To generate a self-signed certificate and private key:
openssl req -x509 -newkey rsa:2048 -nodes -keyout peer.key -out peer.crt -days 365 -subj "/CN=$(curl -s https://ip.e-n-c-r-y-p-t.cc -4 | tr -d '\n' | sha256sum | awk '{print toupper($1)}')"
|
|--> Generates a new RSA private key (peer.key) and a self-signed certificate (peer.crt).
|
|--> The certificate is valid for 365 days.
|
|--> The Common Name (CN) is set to the public IP address of your machine, hashed using SHA-256 for anonymity.
==============================================================
🚀
**Running the Application**
To start the application:
./e-N-c-R-y-P-t peer.crt peer.key 443
|
|--> Starts the application, listening on port 443.
|
|--> Uses the specified certificate and key files for TLS encryption.
To connect to a specific peer while also listening on port:
./e-N-c-R-y-P-t peer.crt peer.key 443 1.2.3.4 12345
|--> Starts the application, listening on port 443.
|
|--> Attempts to connect to the peer at 1.2.3.4 on port 12345.
To connect to a specific peer without listening on port:
./e-N-c-R-y-P-t peer.crt peer.key 0 1.2.3.4 12345
|--> Starts the application, listening on port 0 (port is not opened).
|
|--> Attempts to connect to the peer at 1.2.3.4 on port 12345.
Made with ❤️ in 🇸🇰