TY - GEN
T1 - Anonymous Domain Ownership
AU - Lauinger, Jan
AU - Ernstberger, Jens
AU - Steinhorst, Sebastian
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Emerging identity systems in the Web 3.0 achieve a new notion of digital ownership and control. Yet, existing identity ecosystems face bootstrapping issues as trustworthy authorities cannot be represented with adequate privacy. To equip authorities with trustworthy attributes, this work introduces a protocol of domain ownership oracles, where domain owners can prove domain ownership to any third party while remaining anonymous. To prove ownership of an anonymous domain example. com, users convince verifiers of t he f acts that (i) example.com is in control of users and that (ii) example.com belongs to a public anonymity set of domains. Verifiers learn nothing beyond these two facts and cannot determine which user owns which domain. For the first time, o ur work proposes a practical system to attribute anonymous domain owners with credentials of domain ownership where the degree of anonymity depends on the size of a public anonymity set of domains.
AB - Emerging identity systems in the Web 3.0 achieve a new notion of digital ownership and control. Yet, existing identity ecosystems face bootstrapping issues as trustworthy authorities cannot be represented with adequate privacy. To equip authorities with trustworthy attributes, this work introduces a protocol of domain ownership oracles, where domain owners can prove domain ownership to any third party while remaining anonymous. To prove ownership of an anonymous domain example. com, users convince verifiers of t he f acts that (i) example.com is in control of users and that (ii) example.com belongs to a public anonymity set of domains. Verifiers learn nothing beyond these two facts and cannot determine which user owns which domain. For the first time, o ur work proposes a practical system to attribute anonymous domain owners with credentials of domain ownership where the degree of anonymity depends on the size of a public anonymity set of domains.
KW - Anonymity
KW - Blind Certificates
KW - Domain Ownership
KW - Oracles
KW - Zero-knowledge Proofs
UR - http://www.scopus.com/inward/record.url?scp=85166230164&partnerID=8YFLogxK
U2 - 10.1109/ICBC56567.2023.10174991
DO - 10.1109/ICBC56567.2023.10174991
M3 - Conference contribution
AN - SCOPUS:85166230164
T3 - 2023 IEEE International Conference on Blockchain and Cryptocurrency, ICBC 2023
BT - 2023 IEEE International Conference on Blockchain and Cryptocurrency, ICBC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE International Conference on Blockchain and Cryptocurrency, ICBC 2023
Y2 - 1 May 2023 through 5 May 2023
ER -