搜索结果: 1-15 共查到“Attribute-based Signatures”相关记录26条 . 查询时间(0.257 秒)
Hierarchical Attribute-based Signatures: Short Keys and Optimal Signature Length
Attribute-based Signatures delegation hierarchy path anonymity
2019/4/16
With Attribute-based Signatures (ABS) users can simultaneously sign messages and prove compliance of their attributes, issued by designated attribute authorities, with some verification policy. Neithe...
Efficient Attribute-Based Signatures for Unbounded Arithmetic Branching Programs
attribute-based signatures arithmetic branching programs arithmetic span programs
2019/4/10
This paper presents the first attribute-based signature (ABS) scheme in which the correspondence between signers and signatures is captured in an arithmetic model of computation. Specifically, we desi...
Versatile ABS: Usage Limited, Revocable, Threshold Traceable, Authority Hiding, Decentralized Attribute Based Signatures
attribute based signature anonymous credentials threshold cryptography
2019/3/1
In this work, we revisit multi-authority attribute based signatures (MA-ABS), and elaborate on the limitations of the current MA-ABS schemes to provide a hard to achieve (yet very useful) combination ...
Attribute-Based Signatures for Unbounded Languages from Standard Assumptions
attribute-based signatures Groth-Sahai proofs structure-preserving signatures
2018/11/16
Attribute-based signature (ABS) schemes are advanced signature schemes that simultaneously provide fine-grained authentication while protecting privacy of the signer. Previously known expressive ABS s...
Despite the recent advances in attribute-based signatures (ABS), no schemes have yet been considered under a strong privacy definition. We enhance the security of ABS by presenting a strengthened simu...
Attribute-based Signatures (ABS) are a powerful tool allowing users with attributes issued by authorities to sign messages while also proving that their attributes satisfy some policy. ABS schemes pro...
Attribute-based Signatures for Unbounded Circuits in the ROM and Efficient Instantiations from Lattices
Attribute-based signatures generic constructions lattices
2018/1/11
In this work, we affirmatively close the gap between ABS schemes based on bilinear maps and lattices by constructing the first lattice-based ABS scheme for unbounded circuits in the random oracle mode...
Attribute-Based Signatures for Turing Machines
attribute-based signatures Turing machines indistinguishability obfuscation
2017/8/29
Attribute-based signatures (ABS) support restricted signing keys which allow signers to sign messages with respect to specific signing credentials or attributes that are accepted by the signing polici...
An Equivalence Between Attribute-Based Signatures and Homomorphic Signatures, and New Constructions for Both
digital signatures homomorphic signatures attribute-based signatures
2017/7/28
In Attribute-Based Signatures (ABS; first defined by Maji, Prabhakaran and Rosulek, CT-RSA 2011) an authority can generate multiple signing keys, where each key is associated with an attribute xx. Mes...
Post-Quantum Attribute-Based Signatures from Lattice Assumptions
Lattice-Based Cryptography Attribute Based Signatures
2016/12/10
Attribute based signature schemes (ABS) constitute important and powerful primitives when it comes to protecting the privacy of the user's identity and signing information. More specifically, ABS sche...
Comment on "Attribute-Based Signatures for Supporting Anonymous Certification" by N. Kaaniche and M. Laurent (ESORICS 2016)
Cryptanalysis Attribute-Based Signatures Anonymous Credentials
2016/12/8
Anonymous credential systems enable users to authenticate themselves in a privacy-preserving manner. At
the conference ESORICS 2016, Kaaniche and Laurent presented an anonymous certification scheme b...
Attribute-Based Signatures for Circuits from Bilinear Map
attribute-based signatures Groth-Sahai proofs Groth-Ostrovsky-Sahai proofs
2016/3/7
In attribute-based signatures, each signer receives a signing key from the authority, which
is associated with the signer’s attribute, and using the signing key, the signer can issue a signature
on ...
Stronger Security Notions for Decentralized Traceable Attribute-Based Signatures and More Efficient Constructions
Attribute-based signatures security definitions traceability
2016/1/23
In this work, we revisit the notion of Decentralized Traceable Attribute-Based Signatures (DTABS) introduced by El Kaafarani et al. (CT-RSA 2014) and improve the state-of-the-art in three dimensions:...
Expiration and Revocation of Keys for Attribute-based Signatures (Full Version)
public-key cryptography attribute-based signatures
2015/12/31
Attribute-based signatures, introduced by Maji \emph{et al.}, are signatures that prove that an authority has issued the signer ``attributes'' that satisfy some specified predicate. In existing attrib...
Decentralized Traceable Attribute-Based Signatures
Attribute-based signatures security definitions standard model
2014/3/5
Attribute-based signatures allow a signer owning a set of attributes to anonymously sign a message w.r.t.\ some signing policy. A recipient of the signature is convinced that a signer with a set of at...