A New Revocation Method for Standard Model Group Signature
نویسندگان
چکیده
Membership revocation is practically necessary for group signature schemes. At present, most revocable group signature schemes are based on ROM model and many standard model group signature schemes do not support revocation. We present a novel and general revocation method for standard model group signature scheme based on length-reducing commitment and GrothSahai proof system, and demonstrate its usage by adding revocation capability to the Groth’s full secure group signature scheme. The new method supports two different kinds of linkability for members when signing.
منابع مشابه
An Identity-Based Group Signature with Membership Revocation in the Standard Model
Group signatures allow group members to sign an arbitrary number of messages on behalf of the group without revealing their identity. Under certain circumstances the group manager holding a tracing key can reveal the identity of the signer from the signature. Practical group signature schemes should support membership revocation where the revoked member loses the capability to sign a message on...
متن کاملGroup Signatures with Verifier-Local Revocation and Backward Unlinkability in the Standard Model
Group signatures allow users to anonymously sign messages in the name of a group. Membership revocation has always been a critical issue in such systems. In 2004, Boneh and Shacham formalized the concept of group signatures with verifier-local revocation where revocation messages are only sent to signature verifiers (as opposed to both signers and verifiers). This paper presents an efficient ve...
متن کاملQuasi-Efficient Revocation of Group Signatures
Several interesting group signature schemes have been proposed todate. However, in order for the entire group signature concept to become practical and credible, the problem of secure and efficient group member revocation must be addressed. In this paper, we construct a new revocation method for group signatures based on the signature scheme by Ateniese et al. [ACJT]. This new method represents...
متن کاملQuasi-Efficient Revocation in Group Signatures
A group signature scheme allows any group member to sign on behalf of the group in an anonymous and unlinkable fashion. In the event of a dispute, a designated trusted entity can reveal the identity of the signer. Group signatures are claimed to have many useful applications such as voting and electronic cash. A number of group signature schemes have been proposed to-date. However, in order for...
متن کاملAn Effective Method to Implement Group Signature with Revocation
This paper presents an effective method to integrate the revocation mechanism into some group signature schemes that are based on the strong RSA assumption. The mechanism enables the group manager to either update a group member’s certificates, or revoke a group member. More specifically, a generic method has been proposed for the protocols of sign, verify, and revocation. We demonstrate the ef...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- JCP
دوره 9 شماره
صفحات -
تاریخ انتشار 2014