Revocable policy-based Chameleon hash

• Main Authors: XU, Shengmin, NING, Jianting, MA, Jinhua, XU, Guowen, YUAN, Jiaming, DENG, Robert H.
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2021
• Subjects: Policy-based chameleon hash; Revocable attribute-based encryption; Mutable blockchain; Sanitizable signature; Information Security
• Online Access: https://ink.library.smu.edu.sg/sis_research/6741; https://ink.library.smu.edu.sg/context/sis_research/article/7744/viewcontent/510630_1_En_Print.indd.pdf
• Institution: Singapore Management University

Policy-based chameleon hash (PCH) is a cryptographic building block which finds increasing practical applications. Given a message and an access policy, for any chameleon hash generated by a PCH scheme, a chameleon trapdoor holder whose rewriting privileges satisfy the access policy can amend the un...