Auditable Attribute-Based Credentials Scheme and Its Applications in Contact Tracing

ePrint Report: Auditable Attribute-Based Credentials Scheme and Its Applications in Contact Tracing

Pengfei Wang, Xiangyu Su, Mario Larangeira, Keisuke Tanaka

During the pandemic, the limited functionality of existing privacy-preserving contact tracing systems highlights the need for new designs. Wang et al. proposed an environmental-adaptive framework (CSS '21) but failed to formalize the security. The similarity between their framework and attribute-based credentials (ABC) inspires us to reconsider contact tracing from the perspective of ABC schemes. In such schemes, users can obtain …

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