3.5 Onion V3

Onion services, also known as hidden services, are a feature of the Tor network that allow users to host websites and services anonymously. Version 3 onion services (often referred to as "onion v3") represent an enhanced version of this technology, providing improved security and usability features compared to the earlier v2 onion services. ### Key Features of Onion V3: 1. **Longer Addresses**: Onion v3 addresses are 56 characters long, which provides better security against brute-force attacks. 2. **Stronger Cryptography**: V3 uses a more sophisticated cryptographic approach, including Ed25519 public keys instead of the older RSA keys. 3. **Higher Client Privacy**: V3 services enhance user privacy by decreasing the chances of IP address correlation. 4. **Enhanced Performance**: Improvements have been made in the way hidden services communicate, which can lead to better performance for users accessing these services. 5. **Support for Introduction Points**: V3 allows for a more efficient way of managing who accesses the service by using introduction points. 6. **Name-Based Service**: V3 addresses are derived from the public key, meaning there's a direct link between the service’s key and the onion address, which improves the integrity of the services. ### Browsing Onion V3 Services: To access onion v3 services, users typically need to use the Tor Browser, which is designed to route web traffic through the Tor network, providing anonymity. V3 services will generally have addresses that look like this: `exampleaddress.onion`. ### Conclusion: While onion v3 services offer significant improvements over their predecessors, users should still be cautious and follow best practices for security and privacy when accessing or hosting services on the Tor network.