[PDF] Top 20 Attribute-Based Signatures for Unbounded Languages from Standard Assumptions

... supports unbounded-depth unbounded-size circuits and is based on bilinear maps under standard ...spectrum from circuits, namely Turing machines, were constructed by Datta, Dutta, and ... See full document

... Of course, you may also want to ensure that users cannot be falsely accused by verifiers for (malicious) actions they never committed. The application can enforce this by logging relevant actions and making a user ... See full document

... Our Techniques. Our structure-preserving signature can be seen as a non-trivial optimization of a modular design, suggested by Abe et al [1], which combines a weakly secure SPS scheme and a tagged one-time signature ... See full document

... of attribute-issuing ...of attribute-issuing rights to new authorities, and allows signers to obtain attributes from multiple authorities within the hierarchy with guarantees that the entire ... See full document

... the standard model can be classified into two main fam- ilies [12]: commutative blinding and exponent ...factors from two secret coefficients in a way that makes them “commute” ... See full document

... policy-based signatures the authors show in [BF14] that without restricting the polices the reverse direction of Corollary ...policy-based signatures, the counterexample can also be applied to ... See full document

... Identity Based Encryption [57, 16] which can be seen as the first nontrivial generalization of Public Key ...term Attribute Based Encryption, and the subsequent, natural unification of all these ... See full document

... We note here that instantiations of all the tools we require for the generic construction exist in the literature in both the random oracle and the standard models. In particular, we note that in the random oracle ... See full document

... either based on the random-oracle heuristic and the use of PCP machinery, or on various “knowledge of exponent” assumptions and light-weight PCP ...homomorphic signatures (or even homomorphic MACs), ... See full document

... schemes from the litera- ture or for the results of this ...either based on the random-oracle heuristic and the use of heavy PCP machinery, or on various “knowledge of exponent” assumptions and ... See full document

... under standard assumptions, and even ...protocol from collision-resistant hashing, and [PRV12] use attribute- based encryption to delegate low-depth circuits in two messages in addition ... See full document

... group signatures. Group signatures allow a group member to anonymously sign messages on be- half of the whole group (as needed for anonymous remote ...minimal assumptions, namely the existence of ... See full document

... short signatures, we envision that dual form signatures will be a framework for proving security of many different signature systems that have to this point been difficult to analyze under static assumption ... See full document

... validity attribute to the user, making the “common case” much more efficient than Implementation ...any standard non-time based attribute-based signature scheme, and the basic setup and ... See full document

... policies based on standard assumptions (such as DDH or LWE), using (single-key) general-purpose functional encryption and predicate ...der standard assumptions for the equality ... See full document

... traceable attribute-based signatures [11, 10] (and even those for standard ...non-traceable) attribute-based signatures, ...in attribute authorities, assume the ... See full document

... state-of-the-art standard signature from SXDH contains 4 group elements ...best standard signatures from ...structure-preserving signatures have been a target of intense scrutiny ... See full document

... To this end, in this paper we present a new Σ-protocol for proving possession of a valid Boyen signature by expressing the verification algorithm of the Boyen signature as a simple arithmetic circuit that is compatible ... See full document

... Maxos (2003:4) explained that there is no ready-made source available for collecting Arabic idioms and these idioms are mainly collected from two sources. Firstly, live sources or media such as TV, radio programs, ... See full document

... schemes based on error- correcting codes that are IND-CCA2 secure in the standard ...Nascimento, based on a work of Rosen and ...substantially from the work it is based ... See full document