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Anonymous Revocable Identity-Based Encryption Supporting Anonymous Revocation
April 1, 2024, 3:06 a.m. |
IACR News www.iacr.org
ePrint Report: Anonymous Revocable Identity-Based Encryption Supporting Anonymous Revocation
Kwangsu Lee
Anonymous identity-based encryption (AIBE) is an extension of identity-based encryption (IBE) that enhances the privacy of a ciphertext by providing ciphertext anonymity. In this paper, we introduce the concept of revocable IBE with anonymous revocation (RIBE-AR), which is capable of issuing an update key and hiding the revoked set of the update key that efficiently revokes private keys of AIBE. We first define the security models of RIBE-AR and …
anonymity anonymous ciphertext concept encryption eprint report extension identity lee privacy report revocation
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