TY - JOUR
T1 - Private digital identity on blockchain
AU - Hamer, Tom
AU - Taylor, Kerry
AU - Ng, Kee Siong
AU - Tiu, Alwen
N1 - Publisher Copyright:
© 2019 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0 International (CC BY 4.0).
PY - 2019
Y1 - 2019
N2 - For many identification systems, including those in government, finance and healthcare, it is critical that at most one identity exists for each human individual within a given system. Many existing approaches identify individuals through an exchange of verifiable documents attesting to basic identification information. However, the same basic information is collected for identification in almost every system, meaning that persons are linkable across different identity systems and are not in control of how their identity is used. We propose Unique Self-Sovereign Identity, (USI), combining Cancelable Biometrics [6] and W3C Verifiable Claims [8] to achieve privacy preserving and non-linkable identification, with guarantees against double enrolment with any system. Because our protocol is based on biometrics, it permits individuals to enrol without official identification documents. Our protocol can be used in a wide range of situations, offering data security for large organisations, access to basic services for over one billion people who lack official identifying documents, and personal identity control for all individuals.
AB - For many identification systems, including those in government, finance and healthcare, it is critical that at most one identity exists for each human individual within a given system. Many existing approaches identify individuals through an exchange of verifiable documents attesting to basic identification information. However, the same basic information is collected for identification in almost every system, meaning that persons are linkable across different identity systems and are not in control of how their identity is used. We propose Unique Self-Sovereign Identity, (USI), combining Cancelable Biometrics [6] and W3C Verifiable Claims [8] to achieve privacy preserving and non-linkable identification, with guarantees against double enrolment with any system. Because our protocol is based on biometrics, it permits individuals to enrol without official identification documents. Our protocol can be used in a wide range of situations, offering data security for large organisations, access to basic services for over one billion people who lack official identifying documents, and personal identity control for all individuals.
KW - Blockchain
KW - Cancelable Biometrics
KW - Homomorphic Signature
KW - Verifiable Claims
UR - http://www.scopus.com/inward/record.url?scp=85093831100&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85093831100
SN - 1613-0073
VL - 2599
JO - CEUR Workshop Proceedings
JF - CEUR Workshop Proceedings
T2 - 2019 Blockchain Enabled Semantic Web Workshop and Contextualized Knowledge Graphs Workshop, BlockSW-CKG 2019
Y2 - 27 October 2019
ER -