Results 1 - 10 of 3,376

Short group signatures

by Dan Boneh, Xavier Boyen, Hovav Shacham - In proceedings of CRYPTO ’04, LNCS series , 2004
"... Abstract. We construct a short group signature scheme. Signatures in our scheme are approximately the size of a standard RSA signature with the same security. Security of our group signature is based on the Strong Diffie-Hellman assumption and a new assumption in bilinear groups called the Decision ..."
Abstract - Cited by 386 (19 self) - Add to MetaCart
Abstract. We construct a short group signature scheme. Signatures in our scheme are approximately the size of a standard RSA signature with the same security. Security of our group signature is based on the Strong Diffie-Hellman assumption and a new assumption in bilinear groups called the Decision

Group Signatures

by David Cham, Eugtne Van Heyst
"... Abstract. In this paper we present a new type of signature for a group of persons, called a group signature, which has the following propertjes: (i) only members of the group can sign messages; (ii) the receiver can verify that it is a valid group signaa~e, but cannot discover which gr~up member mad ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
Abstract. In this paper we present a new type of signature for a group of persons, called a group signature, which has the following propertjes: (i) only members of the group can sign messages; (ii) the receiver can verify that it is a valid group signaa~e, but cannot discover which gr~up member

Efficient Group Signature Schemes for Large Groups (Extended Abstract)

by Jan Camenisch, Markus Stadler , 1997
"... A group signature scheme allows members of a group to sign messages on the group's behalf such that the resulting signature does not reveal their identity. Only a designated group manager is able to identify the group member who issued a given signature. Previously proposed realizations of grou ..."
Abstract - Cited by 314 (35 self) - Add to MetaCart
A group signature scheme allows members of a group to sign messages on the group's behalf such that the resulting signature does not reveal their identity. Only a designated group manager is able to identify the group member who issued a given signature. Previously proposed realizations

Efficient and Generalized Group Signatures

by Jan Camenisch , 1997
"... The concept of group signatures was introduced by Chaum et al. at Eurocrypt '91. It allows a member of a group to sign messages anonymously on behalf of the group. In case of a later dispute a designated group manager can revoke the anonymity and identify the originator of a signature. In t ..."
Abstract - Cited by 78 (6 self) - Add to MetaCart
The concept of group signatures was introduced by Chaum et al. at Eurocrypt '91. It allows a member of a group to sign messages anonymously on behalf of the group. In case of a later dispute a designated group manager can revoke the anonymity and identify the originator of a signature

A practical and provably secure coalition-resistant group signature scheme

by Giuseppe Ateniese, Jan Camenisch, Marc Joye, Gene Tsudik , 2000
"... A group signature scheme allows a group member to sign messages anonymously on behalf of the group. However, in the case of a dispute, the identity of a signature’s originator can be revealed (only) by a designated entity. The interactive counterparts of group signatures are identity escrow schemes ..."
Abstract - Cited by 276 (29 self) - Add to MetaCart
A group signature scheme allows a group member to sign messages anonymously on behalf of the group. However, in the case of a dispute, the identity of a signature’s originator can be revealed (only) by a designated entity. The interactive counterparts of group signatures are identity escrow

Group signatures with verifier-local revocation

by Dan Boneh, Hovav Shacham - CCS'04 , 2004
"... Group signatures have recently become important for enabling privacy-preserving attestation in projects such as Microsoft’s ngscb effort (formerly Palladium). Revocation is critical to the security of such systems. We construct a short group signature scheme that supports Verifier-Local Revocation ( ..."
Abstract - Cited by 126 (3 self) - Add to MetaCart
Group signatures have recently become important for enabling privacy-preserving attestation in projects such as Microsoft’s ngscb effort (formerly Palladium). Revocation is critical to the security of such systems. We construct a short group signature scheme that supports Verifier-Local Revocation

On Anonymity of Group Signatures

by Zhou Sujing, Lin Dongdai , 2005
"... A secure group signature is required to be anonymous, that is, given two group signatures generated by two di#erent members on the same message or two group signatures generated by the same member on two different messages, they are indistinguishable except for the group manager. In this paper w ..."
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A secure group signature is required to be anonymous, that is, given two group signatures generated by two di#erent members on the same message or two group signatures generated by the same member on two different messages, they are indistinguishable except for the group manager. In this paper

Efficient Revocation in Group Signatures

by Emmanuel Bresson, Jacques Stern - In Proceedings of Public Key Cryptography (PKC’2001 , 2001
"... We consider the problem of revocation of identity in group signatures. Group signatures are a very useful primitive in cryptography, allowing a member of a group to sign messages anonymously on behalf of the group. Such signatures must be anonymous and unlinkable, but a group authority must be a ..."
Abstract - Cited by 36 (1 self) - Add to MetaCart
We consider the problem of revocation of identity in group signatures. Group signatures are a very useful primitive in cryptography, allowing a member of a group to sign messages anonymously on behalf of the group. Such signatures must be anonymous and unlinkable, but a group authority must

Unique Group Signatures

by Matthew Franklin, Haibin Zhang , 2012
"... We initiate the study of unique group signature such that signatures of the same message by the same user will always have a large common component (i.e., unique identifier). It enables an efficient detection algorithm, revealing the identities of illegal users, which is fundamentally different from ..."
Abstract - Cited by 3 (1 self) - Add to MetaCart
We initiate the study of unique group signature such that signatures of the same message by the same user will always have a large common component (i.e., unique identifier). It enables an efficient detection algorithm, revealing the identities of illegal users, which is fundamentally different

Linkable democratic group signatures

by Mark Manulis - Proceedings of the 2nd Information Security Practice and Rexperience Conference (ISPEC 2006 , 2006
"... For many mutli-party applications group signatures are important cryptographic primitives that can be used for the purpose of anonymity and privacy. Group signatures can be used by employees of a company to sign documents on behalf of the company, or in electronic voting and bidding scenarios. In cl ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
For many mutli-party applications group signatures are important cryptographic primitives that can be used for the purpose of anonymity and privacy. Group signatures can be used by employees of a company to sign documents on behalf of the company, or in electronic voting and bidding scenarios
Results 1 - 10 of 3,376