PGP Encryption Complete Tutorial

Master PGP encryption for Nexus Market 2FA and secure communications

📊 Intermediate ⏱️ 20 minutes

🔐 PGP is MANDATORY on Nexus Market

Without PGP, you cannot register or log into Nexus Market. This guide will teach you everything you need to know.

🔑

What is PGP?

PGP (Pretty Good Privacy) is a cryptographic system that uses two keys:

🔓 Public Key

Share this with everyone. People use it to encrypt messages to you and verify your signatures.

🔒 Private Key

NEVER SHARE THIS! Only you have it. Use it to decrypt messages and sign messages.

Why Nexus Market Requires PGP

🛡️ Mandatory 2FA Authentication

Nexus uses PGP-based 2FA instead of TOTP codes. Even if attackers steal your password, they can't log in without your private key.

🎣 Anti-Phishing Protection

Phishing sites can steal passwords, but they cannot replicate PGP challenges. If you can't decrypt the 2FA challenge, it's a fake site.

✉️ Encrypted Communications

Encrypt shipping addresses and sensitive info with vendor public keys. Even Nexus admins can't read encrypted messages.

Installing GPG/Kleopatra

We recommend Kleopatra (Windows/macOS) or GPG (Linux) for managing PGP keys.

💻 Windows/macOS: Install Gpg4win

Download Gpg4win from: gpg4win.org
Install with default settings
Launch Kleopatra (included with Gpg4win)

🐧 Linux: Install GPG


                        sudo apt install gnupg  # Debian/Ubuntu

                        sudo dnf install gnupg  # Fedora

Generating Your PGP Key Pair

⚠️ Important Settings

Name: Use a pseudonym (NOT your real name)
Email: Use a disposable/anonymous email
Key Size: Minimum 4096 bits (recommended)
Expiration: Set to "Never" for market use

Using Kleopatra (Windows/macOS):

1 Open Kleopatra → File → New OpenPGP Key Pair
2 Enter a pseudonym name and disposable email
3 Click "Advanced Settings" → Set key size to 4096 bits
4 Create a STRONG passphrase (20+ characters recommended)

Using GPG (Linux):


gpg --full-generate-key

# Select: RSA and RSA (default)
# Key size: 4096
# Expiration: 0 (does not expire)
# Name: YourPseudonym
# Email: anonymous@email.com

Encrypting & Decrypting Messages

🔒 To Encrypt a Message

Copy the recipient's public key
Import it into Kleopatra/GPG
Write your message in Notepad
In Kleopatra: Clipboard → Encrypt
Select recipient's public key
Send the encrypted text

🔓 To Decrypt a Message

Copy the PGP encrypted message
In Kleopatra: Clipboard → Decrypt/Verify
Enter your private key passphrase
The decrypted message appears
Delete the decrypted text after reading

Exporting Your Public Key for Nexus Market

You'll need to paste your public key into Nexus Market during registration and 2FA setup.

Kleopatra:

Right-click your key → Export...
Or: Clipboard → Copy Public Keys
Paste into Nexus Market registration form

GPG (Linux):


                        gpg --armor --export your@email.com

Key Management Best Practices

🚨 NEVER Share Your Private Key

If someone asks for your private key, they are scamming you. Nexus admins will NEVER ask for it.

💾 Backup Your Private Key

Export your private key and store it securely offline. If you lose it, you lose access to your Nexus account forever.

🔑 Use a Strong Passphrase

Your private key passphrase should be 20+ characters. Use a password manager.

Ready to Set Up 2FA?

Now that you have a PGP key, continue to the 2FA setup guide.

Set Up 2FA → Registration Guide →