WebMay 25, 2024 · the Decision Linear ( \mathsf {DLIN}) assumption on symmetric bilinear groups of prime order. Then, (subexponentially secure) indistinguishability obfuscation for all polynomial-size circuits exists. Assuming only polynomial security of the assumptions above yields polynomially secure functional encryption for all polynomial-size circuits. WebSpecifically, we show how to adapt the recent DLIN-based instantiations of Lewko (Eurocrypt ’12) to the SXDH assumption. To our knowledge, this is the first work to instantiate either dual system encryption or dual pairing vector spaces under the SXDH assumption. Keywords Signature Scheme Random Oracle Challenge Ciphertext …
Indistinguishability Obfuscation from LPN over F_p, DLIN, …
WebADDL has been providing clients, in well over 300 California cities, Business Lines insurance products for nearly five decades. Webdecisional bilinear Diffie-Hellman (DBDH) assumption [5]. Fix prime-order groups (G;GT), endowed with an efficient symmetric bilinear map e: G ×G →GT. Let g denote a random generator of G. The DBDH assumption stipulates that given g;ga;gb;gc, the quantity e(g;g)abc is pseudorandom. The DBDH assumption is extremely appealing in its … top 3 companies in the united states
Improved Inner-product Encryption with Adaptive Security …
WebJun 19, 2024 · Besides, we give its security proof given our introduced security model in the ROM based on the DLIN assumption and DDH assumption. Nevertheless, our proposed FS-PAEKS scheme mainly focuses on the single-user setting, which seems interesting to study its generalization under the multi-user setting for exploring more practical … Webtively secure under standard assumptions, the decisional linear (DLIN) assumption and the decisional bilinear Di e-Hellman (DBDH) assumption, over prime order groups in the standard model. To the best of our knowledge, our second scheme is the rst fully secure construction of doubly-spatial encryption. [1] WebSep 3, 2014 · A key-policy attribute-based encryption (KP-ABE) scheme with constant-size ciphertexts, whose selective security is proven under the decisional linear (DLIN) assumption in the standard model and which has semi-adaptively security, which is a recently proposed notion of security. Expand pickled turnips beets refrigerator