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diff --git a/spec/tor-spec-intro.md b/spec/tor-spec-intro.md index 185d852..a81e1b9 100644 --- a/spec/tor-spec-intro.md +++ b/spec/tor-spec-intro.md @@ -1,83 +1,4 @@ -Tor Protocol Specification - -```text - Roger Dingledine - Nick Mathewson - -Table of Contents - - 0. Preliminaries - 0.1. Notation and encoding - 0.2. Security parameters - 0.3. Ciphers - 0.4. A bad hybrid encryption algorithm, for legacy purposes - 1. System overview - 1.1. Keys and names - 2. Connections - 2.1. Picking TLS ciphersuites - 2.2. TLS security considerations - 3. Cell Packet format - 4. Negotiating and initializing connections - 4.1. Negotiating versions with VERSIONS cells - 4.2. CERTS cells - 4.3. AUTH_CHALLENGE cells - 4.4. AUTHENTICATE cells - 4.4.1. Link authentication type 1: RSA-SHA256-TLSSecret - 4.4.2. Link authentication type 3: Ed25519-SHA256-RFC5705 - 4.5. NETINFO cells - 5. Circuit management - 5.1. CREATE and CREATED cells - 5.1.1. Choosing circuit IDs in create cells - 5.1.2. EXTEND and EXTENDED cells - 5.1.3. The "TAP" handshake - 5.1.4. The "ntor" handshake - 5.1.4.1. The "ntor-v3" handshake. - 5.1.5. CREATE_FAST/CREATED_FAST cells - 5.1.6. Additional data in CREATE/CREATED cells - 5.2. Setting circuit keys - 5.2.1. KDF-TOR - 5.2.2. KDF-RFC5869 - 5.3. Creating circuits - 5.3.1. Canonical connections - 5.4. Tearing down circuits - 5.5. Routing relay cells - 5.5.1. Circuit ID Checks - 5.5.2. Forward Direction - 5.5.2.1. Routing from the Origin - 5.5.2.2. Relaying Forward at Onion Routers - 5.5.3. Backward Direction - 5.5.3.1. Relaying Backward at Onion Routers - 5.5.4. Routing to the Origin - 5.6. Handling relay_early cells - 6. Application connections and stream management - 6.1. Relay cells - 6.1.1. Calculating the 'Digest' field - 6.2. Opening streams and transferring data - 6.2.1. Opening a directory stream - 6.3. Closing streams - 6.4. Remote hostname lookup - 7. Flow control - 7.1. Link throttling - 7.2. Link padding - 7.3. Circuit-level flow control - 7.3.1. SENDME Cell Format - 7.4. Stream-level flow control - 8. Handling resource exhaustion - 8.1. Memory exhaustion - 9. Subprotocol versioning - 9.1. "Link" - 9.2. "LinkAuth" - 9.3. "Relay" - 9.4. "HSIntro" - 9.5. "HSRend" - 9.6. "HSDir" - 9.7. "DirCache" - 9.8. "Desc" - 9.9. "Microdesc" - 9.10. "Cons" - 9.11. "Padding" - 9.12. "FlowCtrl" -``` +# Tor Protocol Specification Note: This document aims to specify Tor as currently implemented, though it may take it a little time to become fully up to date. Future versions of Tor |