Redactable and Sanitizable Signature Schemes: Applications and Limitations for use in Decentralized Digital Identity Systems

2023/10/26 by Bryan Kumara, Kumara, Bryan, Mark Hooper +7 · 1 citation
Computer Science · Social Sciences · #Access Control and Trust #Computers and Society (cs.CY) #Cryptography and Data Security #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Privacy-Preserving Technologies in Data

paper · pdf · doi:10.48550/arxiv.2310.17297

openalex publication_date 2023/10/26 · openalex created_date 2023/10/28 · openalex updated_date 2026/07/28

Abstract

Redactable signature schemes and sanitizable signature schemes are methods that permit modification of a given digital message and retain a valid signature. This can be applied to decentralized identity systems for delegating identity issuance and redacting sensitive information for privacy-preserving verification of identity. We propose implementing these protocols on a digital credential and compare them against other privacy-enhancing techniques to assess their suitability

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