Understanding Tor Onion Services and Their Use Cases

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Harvesting <strong>Onion</strong>s base32 rendezvous-service-descriptor 3xqunszqnaolrrfmtzgaki7mxelgvkje version 2 permanent-key -----BEGIN RSA PUBLIC KEY----- MIGJAoGBAJ/SzzgrXPxTlFrKVhXh3buCWv2QfcNgncUpDpKouLn3AtPH5Ocys0jE aZSKdvaiQ62md2gOwj4x61cFNdi05tdQjS+2thHKEm/KsB9BGLSLBNJYY356bupg I5gQozM65ENelfxYlysBjJ52xSDBd8C4f/p9umdzaaaCmzXG/nhzAgMBAAE= -----END RSA PUBLIC KEY----- secret-id-part anmjoxxwiupreyajjt5yasimfmwcnxlf publication-time 2015-03-11 19:00:00 protocol-versions 2,3 introduction-points -----BEGIN MESSAGE----- ... → 3g2upl4pq6kufc4m.onion
HSDir Camping Attack Relays: desc_id = 3xqunszqnaolrrfmtzgaki7mxelgvkje Base16(desc_id) = 337871756E737A716E616F6C7272666D747A67616... HSDir 1: 33789F22470A22C8BEEF907CED29847781E15C5D HSDir 2: 337B7E307550F48DCDADA7481FA8436B2FCDADA9 HSDir 3: 337DA8971BE4580EAC5D1D7AE4E508020CF04594
Page 1 and 2: Understanding Tor Onion Services an
Page 3 and 4: Encrypted Link Unencrypted Link Ali
Page 5 and 6: History of Onion Service Changes in
Page 7 and 8: How much onion traffic?
Page 9 and 10: Properties and Use cases
Page 11 and 12: Stealth Mode $ vi /etc/tor/torrc Hi
Page 13 and 14: Keeping your (vulnerable) infra sec
Page 15 and 16: Onion Service: Step 1 IP1-3 Tor Cir
Page 17 and 18: Onion Service: Step 3 Step 3: Alice
Page 19 and 20: Onion Service: Step 5 Step 5: Servi
Page 21 and 22: Directory desc_id = H(onion-address
Page 23 and 24: Directory (3) desc_id rep1 HSDir n
Page 25: Weak Cryptography ● RSA 1024 ●
Page 29 and 30: HSDir Deanonymization Attack 13:37:
Page 31 and 32: HSDir Deanonymization Attack Circui
Page 33 and 34: Guard Discovery Attack (1/2) Attack
Page 35 and 36: The Next Generation Onion Service
Page 37 and 38: Directory Predictability desc_id =
Page 39 and 40: New Address Size From 16 characters
Page 41 and 42: Vanguard proposal No intersection b
Page 43 and 44: Single Onion Services Service side
Page 45 and 46: Development of Next Gen Onion Servi
Page 47 and 48: How to keep your onions healthy ●
Page 49: Thank you!

Understanding Tor Onion Services and Their Use Cases

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