Why attribute-based signatures? The kind of authentication required in an attribute-based system differs from that offered by digital signatures, in much the same way public-key encryption does not fit the bill for attribute- based encryption. An attribute-based solution requires a richer ...
attribute-basedsignatures：基于属性的签名
LatticesNIZKsABESISWe construct a lattice-based (key-policy) attribute-based signatures (ABS) scheme which supports attributes of unbounded polynomial length (the size of the public parameters is a fixed polynomial in the security parameter and a depth bound, with which one can generate signatures ...
Attribute-based signaturesArithmetic branching programsArithmetic span programsConcrete efficiencyUnbounded multi-use of attributesBilinear groupsThis paper presents the first attribute-based signature (ABS) scheme in which the correspondence between signers and signatures is captured in an arithmetic model of ...
Attribute-based signaturesISISLatticesProxy re-signaturesWe introduce Attribute-based Proxy Re-Signatures (ABPRS), an extension of Proxy Re-Signatures (PRS), which allows a semi-trusted proxy to transform a signature of one entity into a signature of another, without revealing any signing key and...
Hidden Attribute-Based Signatures without Anonymity Revocation from Lattices the signature size has nothing to do with the number of the ring users.As one of the most efficient candidates of post-quantum cryptography,lattice-based cryptography not only allows to construct powerful primitives which have...
Finally, we highlight how our schemes yield more efficient instantiations of various cryptographic protocols, including variants of attribute-based signatures and direct anonymous attestation, which is a protocol deployed in practice. Our ... E Ghadafi - European Symposium on Research in Computer Securi...
Attribute-based signature is a versatile class of digital signatures. In attribute-based signature, a signer obtains his private key corresponding to the set of his attributes from a trusted authority, and then he can sign a message with any predicate that is satisfied by his attributes set. ...
Attribute-Based Two-Tier Signatures: Definition and ConstructionDigital signatureAttribute-basedTwo-tier keysAn attribute-based signature scheme is a digital signature scheme proposed in 2008 by Maji et al.,in which a message is associated with a signing policy, where the signing policy is described...
Users cannot forge signatures with attributes they do not possess, and the signature provides assurance that only a user with appropriate attributes satisfying the policy can endorse the message, resulting in unforgeability. However, legitimate signers remain anonymous and are indistinguishable among all...