A code-based group signature scheme
نویسندگان
چکیده
منابع مشابه
A code-based group signature scheme
This work is the extended version of [1] which proposed the first code-based group signature. The new group signature scheme we present here has numerous advantages over all existing post-quantum constructions and even competes (in terms of properties) with pairing based constructions: it allows to add new members during the lifetime of the group (dynamic). Plus, it appears that our scheme migh...
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We solve an open question in code-based cryptography by introducing the first provably secure group signature scheme from codebased assumptions. Specifically, the scheme satisfies the CPA-anonymity and traceability requirements in the random oracle model, assuming the hardness of the McEliece problem, the Learning Parity with Noise problem, and a variant of the Syndrome Decoding problem. Our co...
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McEliece is one of the oldest known public key cryptosystems, however it was not quite as successful as RSA. One main reason is that it is widely believed that code-based cryptosystems like McEliece do not allow practical digital signatures. Although X.M. Wang presented a code-based signature scheme in 1990, some authors find that it is not secure. Recently, T.Courtois et al. show a new way to ...
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Alice needs a document signed by an employee in Bob’s company. That employee should be part of the IT staff and is at least a junior manager in the cryptography team or a senior manager in the biometrics team. In such a scenario we need an Attribute Based Group Signature Scheme (ABGS). In this paper we define the first ABGS scheme where verifying includes authenticating a person that belongs to...
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A new ID-based group signature scheme, in which group managers (Membership Manager and Tracing Manager) and group members are all ID-based, is presented in this paper. Due to the nice constructive method of group signature schemes and the sound properties of bilinear pairing, it is shown that our scheme has the advantages of concurrent joining of users, immediate revocation of group members, ea...
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ژورنال
عنوان ژورنال: Designs, Codes and Cryptography
سال: 2016
ISSN: 0925-1022,1573-7586
DOI: 10.1007/s10623-016-0276-6