科研之友
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摘要
In recent years, the electronic authentication system has achieved great success, which depends largely on the level of user privacy, but there is still a need to improve the research of the effective means of canceling the certification voucher. In this paper, we consider revoking the certificate-based privacy protection authentication system and propose an Improved Dynamic Accumulator based on Bilinear Mapping to be applied to revoke anonymous credentials. In particular, the update proves that the issuer is required to increment and withdraw the voucher only once for each multiplication and that the issuer can also delegate it to an untrusted entity that the user can retrieve the updated evidence from the untrusted entity.
