Authors:
Julien Bringer
1
;
Hervé Chabanne
2
and
Alain Patey
2
Affiliations:
1
Morpho, France
;
2
Morpho and Télécom ParisTech, France
Keyword(s):
Group Signatures, Identity Management, Derivation, Cascade Revocation, Biometrics, Anonymity.
Related
Ontology
Subjects/Areas/Topics:
Applied Cryptography
;
Biometrics Security and Privacy
;
Cryptographic Techniques and Key Management
;
Data and Application Security and Privacy
;
Data Engineering
;
Databases and Data Security
;
Identity Management
;
Information and Systems Security
;
Privacy Enhancing Technologies
Abstract:
We introduce a new identity management process in a setting where users’ identities are credentials for anonymous authentications. Considering identity domains organized in a tree structure, where applying for a new identity requires to previously own the parent identity, we enable a cascade revocation process that takes into account this structure while ensuring anonymity for non-revoked users, in particular, towards the providers of other identity domains. Our construction is based on the group signature scheme of (Bringer and Patey, 2012).