[PDF] Top 20 Unbounded Inner-Product Functional Encryption, with Succinct Keys

... build Unbounded Inner-Product Functional Encryption from Bilinear ...public keys require 28 group elements, ciphertexts 7 per coordinate and decryption keys 7 per ... See full document

... We will prove that there exists a simulator that generates the view of the adversary from the output only. In this proof, we will assume static corruptions (the set CS of the corrupted clients is known from the ... See full document

... Unfortunately, message confidentiality is not sufficient in several advanced applications of FE, rather privacy also needs to be ensured for the functions for which the decryption keys are issued. This is espe- ... See full document

... and functional keys in a symmetric fashion in our construction, our hybrid security proof does not maintain any such ...and functional keys to flip the same reasoning to argue for function ... See full document

... Functional encryption (FE) [BSW11,O’N10] emerged from a series of refine- ments of PKE, starting with identity based encryption [Sha84], which was later extended to fuzzy identity-based ... See full document

... of functional encryption schemes that are provably secure under simple assumptions against unbounded collusion to include function-hiding inner product ...key functional ... See full document

... key encryption schemes which possess a linear homomorphic property over their keys as well as hash proof system features with certain algebraic structure can be used to construct an efficient identity-based ... See full document

... for F and do tracing on D ? instead of D. We also notice that one-target tracing defeats cloned pirate decoders. In fact, the most popular way in practice to produce a pirate decoder is to clone a legitimate one with its ... See full document

... In the original form [21, 14], the first goal of game transformations is to insert a pair of random coefficients in a hidden subspace of challenge ciphertext and queried keys (e.g., Game 2-h-2 in the proof of Lemma ... See full document

... secret keys, meaning that they contain one group element and a corresponding ...secret keys, which means that a combination of illegitimate keys can become a legitimate ... See full document

... of functional equations for the proof of new fixed point theorems with ...several functional equations have been extensively investigated by a number of authors see 17, ... See full document

... In some applications, an additional security notion attribute-hiding [10, 22] is desirable, which concerns the privacy of attribute x instead of message m. In the literature, there are two levels of attribute-hiding: (1) ... See full document

... 1. This paper introduces a reasonable and useful definition of (a variant of) IPE for achieving predicate-hiding in a public-key setting, i.e., IPE with ciphertext conversion (IPE-CC). Here, two types of ciphertexts, ... See full document

... of keys venture out of the house without a bunch of keys in his hand, for without such a talisman he would in his hand, for without such a talisman he would fear that some devil might take advantage of his ... See full document

... Another line of study of IPE is initiated as spatial encryption (SE) defined by Boneh and Ham- burg [BH08]. Hamburg [Ham11] observed that HIPE and SE are strongly related, and Chen, Lim, Ling, and Wang [CLLW11] ... See full document

... To prove security, we identify a property, termed as local simulation, of selectively secure garbling schemes for circuits that when combined with other tools yields succinct garbling schemes. To describe this ... See full document

... Using the simple nested combiner for two candidates, we could evaluate each monomial and then sum the resulting monomial evaluations to compute the polynomial. However, this approach is flawed, since it will leak the ... See full document

... mystery keys on transfer their perpetual information streams Also delegate those relating computations will An outsider server, same time the traceability could still make given looking into ... See full document

... system encryption methodology for building adaptively secure predicate ...system encryption scheme, there are two types of keys and ciphertexts: normal and ...Normal keys and ciphertexts are ... See full document

... of Functional Encryption can be traced back to Identity Based Encryption [57, 16] which can be seen as the first nontrivial generalization of Public Key ...Based Encryption, and the ... See full document