TY - GEN
T1 - DID and VC:Untangling decentralized identifiers and verifiable credentials for the web of trust
AU - Brunner, Clemens
AU - Gallersdörfer, Ulrich
AU - Knirsch, Fabian
AU - Engel, Dominik
AU - Matthes, Florian
N1 - Publisher Copyright:
© 2020 Owner/Author.
PY - 2020/12/14
Y1 - 2020/12/14
N2 - Decentralized identifiers and verifiable credentials have been proposed as a self-sovereign and privacy-friendly alternative to centralized and proprietary authentication services. Currently, a W3C standard exists that attempts to unify existing proposals and to find a common layer for decentralized identification and verification. However, there are some limitations of decentralized identifiers in comparison to established, centrally controlled authentication platforms concerning trust, privacy and usability. In this paper, we first describe all workflows which are necessary to create, share and verify a verifiable credential and second, we discuss the limitations concerning trust, privacy and usability of decentralized identifiers. The paper summarizes the involved workflows for decentralized authentication as proposed by the current standard. Further, we show the existing limitations and shortcomings that need to be considered when sharing DID for practical implementations and give an overview of possible solutions and future directions.
AB - Decentralized identifiers and verifiable credentials have been proposed as a self-sovereign and privacy-friendly alternative to centralized and proprietary authentication services. Currently, a W3C standard exists that attempts to unify existing proposals and to find a common layer for decentralized identification and verification. However, there are some limitations of decentralized identifiers in comparison to established, centrally controlled authentication platforms concerning trust, privacy and usability. In this paper, we first describe all workflows which are necessary to create, share and verify a verifiable credential and second, we discuss the limitations concerning trust, privacy and usability of decentralized identifiers. The paper summarizes the involved workflows for decentralized authentication as proposed by the current standard. Further, we show the existing limitations and shortcomings that need to be considered when sharing DID for practical implementations and give an overview of possible solutions and future directions.
KW - Blockchain
KW - DID
KW - Decentralized Identifiers
KW - Trust
KW - VC
KW - Verifiable Claims
KW - Verifiable Credentials
KW - W3C
KW - Web of Trust
UR - http://www.scopus.com/inward/record.url?scp=85103096650&partnerID=8YFLogxK
U2 - 10.1145/3446983.3446992
DO - 10.1145/3446983.3446992
M3 - Conference contribution
AN - SCOPUS:85103096650
T3 - ACM International Conference Proceeding Series
SP - 61
EP - 66
BT - 2020 3rd International Conference on Blockchain Technology and Applications, ICBTA 2020
PB - Association for Computing Machinery
T2 - 3rd International Conference on Blockchain Technology and Applications, ICBTA 2020
Y2 - 14 December 2020 through 16 December 2020
ER -