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diff --git a/src/content/docs/guides/fundamental-concepts.md b/src/content/docs/guides/fundamental-concepts.md new file mode 100644 index 0000000..dd19888 --- /dev/null +++ b/src/content/docs/guides/fundamental-concepts.md @@ -0,0 +1,93 @@ +--- +title: Fundamental Concepts for Beginners +sidebar: + label: Fundamental Concepts + order: 1 +--- + +If you're new to GPG (GNU Privacy Guard) or PGP (Pretty Good Privacy), it's +essential to understand some key concepts before diving in. This knowledge can +help you avoid common pitfalls, such as accidentally sharing your private key, +and ensure your communications remain secure. + +## Key Concepts of GPG/PGP + +### Key Pair Basics + +In the world of GPG/PGP, everything starts with a key pair. Think of a key pair +like a set of two uniquely related keys on a key ring: + +- **Public Key**: This is like your home address that you can share with anyone. + Others will use it to send you encrypted messages or verify your digital + signature. +- **Private Key**: This is akin to the key to your house. It must be kept secret + because it can decrypt the messages sent to you or sign messages from you. + +#### Why Both Keys? + +The magic of this system lies in its use of cryptographic algorithms. Data +encrypted with your public key can only be decrypted by your private key, and +vice versa. This ensures that only the intended recipient can read the message, +and it can verify the sender's identity if a signature is used. + +### Generating Your Key Pair + +Before you can start encrypting or signing anything, you need to generate your +key pair. This process involves choosing a cryptographic algorithm (like RSA or +DSA) and often setting a key size (with larger sizes being more secure but +slower). + +#### Safety First + +When creating your key pair, you'll also be asked to enter a passphrase. This +adds an extra layer of security, as the passphrase will be needed to access your +private key. Choose a strong, memorable passphrase to protect your key. + +### Understanding Subkeys + +A GPG key pair doesn't have to be limited to just one public and one private +key. You can generate subkeys for specific purposes, such as: + +- **Encryption Subkey**: Used solely for encrypting and decrypting messages. +- **Signing Subkey**: Used for creating and verifying digital signatures. + +Subkeys are tied to your primary key pair but can be revoked or replaced +independently, which is useful if a subkey is compromised but your primary key +remains secure. + +### The Role of the Primary Key + +Your primary key pair is the foundation of your GPG identity. All subkeys are +associated with this primary pair. The primary key is typically used for +signing, to establish trust within the network, and to certify subkeys. + +#### Protect Your Primary Key + +If your primary private key is compromised, the entire security of your key ring +is at risk. Therefore, it's crucial to: + +- Keep your primary private key in a secure location. +- Use subkeys for day-to-day encryption and signing tasks. +- Consider using hardware security modules (HSMs) or smart cards to store keys + securely. + +## Best Practices for Beginners + +1. **Backup Your Keys**: Securely backup your private keys (especially the + primary one) in case of hardware failure or loss. +2. **Use Strong Passphrases**: Your key's security is only as good as your + passphrase. Use a long, complex passphrase that is difficult to guess. +3. **Regularly Update Your Keys**: Over time, cryptographic standards evolve. + Regularly review and update your keys and algorithms to ensure they remain + secure. +4. **Learn Key Management**: Practice importing, exporting, revoking, and + verifying keys. Good key management habits are crucial for maintaining your + security over time. +5. **Engage with the Community**: The GPG/PGP community is vast and supportive. + Join forums, read blogs, and participate in discussions to learn from + experienced users. + +By understanding these fundamental concepts and adhering to best practices, +you'll be well on your way to securely using GPG/PGP. Remember, the goal is to +protect your communications and identity in the digital world, and a solid grasp +of these basics is the first step.
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