Page 57 - ITU Journal Future and evolving technologies Volume 2 (2021), Issue 1

ITU Journal on Future and Evolving Technologies, Volume 2 (2021), Issue 1

Table 1 – Qualitative evaluation of privacy features of existing PCNs.

Network Type Blockchain Type Sender Anonymity Recipient Anonymity Channel Balance Privacy Relationship Anonymity Business Volume Privacy

Lightning Network (HTLC) [4] Decentral‑ Public
ized/
Distributed
Raiden Network [5] Decentral‑ All
ized/
Distributed
Spider [8] Decentral‑ All
ized/
Centralized
SilentWhispers [9] Decentral‑ All
ized/
Centralized
SpeedyMurmurs [10] Decentral‑ Public
ized/
Centralized
PrivPay [11] Decentral‑ Per‑
ized/ mis‑
Centralized sioned
Bolt [12] Centralized Public
Fulgor [13] Decentral‑ Public
ized/
Distributed
Rayo [13] Decentral‑ Public
ized/
Distributed
Erdin et al. [14] Distributed/ All
Federated
Anonymous Multi‑Hop Locks Decentral‑ Public
(AMHL) [15] ized/
Distributed

: Partially satis ies OR can not defend against all mentioned attacks.
: Fully satis ies.
: Does not satisfy.

© International Telecommunication Union, 2021 41