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Research on anonymous signatures and group signatures
Computer Communications, 2008In this paper, we analyze the conventional group signature schemes, and propose the notion of conflict of authenticated contents which implies the unconquerable drawbacks of the current group signature schemes and threshold signature schemes. We discuss an important problem of group signature, that is, whether the group signature is produced on behalf ...
Fucai Zhou, Jun Zhang, Jian Xu 0004
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Skipping the q in Group Signatures
2020The notion of group signatures was introduced to allow group members to sign anonymously on behalf of a group. A group manager allows a user to join a group, and another will be able to open a signature to revoke its anonymity. Several schemes have already been proposed to fulfil these properties, however very few of them are proven in the standard ...
Olivier Blazy, Saqib A. Kakvi
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Study of the amidase signature group
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1996Computer methods for database search, multiple alignment and cluster analysis indicated significant homology between amino-acid sequences of 21 amidases or amidohydrolases (EC 3.5). All of them were found to be involved in the reduction of organic nitrogen compounds and ammonia production.
Chebrou, H. +3 more
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Threshold Signatures in Dynamic Groups
Future Generation Communication and Networking (FGCN 2007), 2007In this paper we present the efficient solution for the dynamical groups with the variable threshold bound. In fact we consider the more general situation, when there is a family of dynamical groups instead of one group. We were able to handle this more general situation by joining the secret sharing idea together with the certification system device ...
Jacek Pomykala, Tomasz Warchol
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1996
Group signatures, introduced by Chaum and van Heyst at Eurocrypt'91, allow individual members of a group to sign messages on behalf of the group while remaining anonymous. Furthermore, in case of disputes later a trusted authority, who is given some auxiliary information, can identify the signer.
Seungjoo Kim, Sungjun Park, Dongho Won
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Group signatures, introduced by Chaum and van Heyst at Eurocrypt'91, allow individual members of a group to sign messages on behalf of the group while remaining anonymous. Furthermore, in case of disputes later a trusted authority, who is given some auxiliary information, can identify the signer.
Seungjoo Kim, Sungjun Park, Dongho Won
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2005
We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the signers as leaves. When opening a signature a group manager only learns to which of its subtrees, if any, the signer belongs.
Mårten Trolin, Douglas Wikström
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We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the signers as leaves. When opening a signature a group manager only learns to which of its subtrees, if any, the signer belongs.
Mårten Trolin, Douglas Wikström
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2004
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 Linear assumption.
Dan Boneh, Xavier Boyen, Hovav Shacham
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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 Linear assumption.
Dan Boneh, Xavier Boyen, Hovav Shacham
openaire +2 more sources