Dlin assumption
WebThe Decision Linear (DLIN) assumption is a mathematical assumption used in elliptic curve cryptography. In particular, the DLIN assumption is useful in settings where the decisional Diffie–Hellman assumption does not hold … 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 …
Dlin assumption
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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 … WebAbstract. In this paper, we show identity-based encryption (IBE) and inner product encryption (IPE) schemes which achieve the maximum-possible leakage rate 1 − o (1). …
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 … The Decision Linear (DLIN) assumption is a computational hardness assumption used in elliptic curve cryptography. In particular, the DLIN assumption is useful in settings where the decisional Diffie–Hellman assumption does not hold (as is often the case in pairing-based cryptography). The Decision Linear assumption was introduced by Boneh, Boyen, and Shacham. Informally the DLIN assumption states that given , with random group elements and random expo…
WebNov 22, 2024 · In this work, we construct the first attribute based encryption scheme for DFA from static assumptions on pairings, namely, the \mathsf {DLIN} assumption. Our scheme supports unbounded length inputs as well as unbounded length machines. WebIn this paper, we present two non-zero inner-product encryption (NIPE) schemes that are adaptively secure under a standard assumption, the decisional linear (DLIN) assumption, in the standard model. One of the proposed NIPE schemes features constant-size ciphertexts and the other features constant-size secret-keys.Our NIPE schemes imply an …
WebTheDLINAssumption: The Decisional Linear assumption (DLIN) is stated as follows: For an appropriate -bit prime , two groups G and G are chosen of order such that there exists an efficiently computable nontrivial symmetric bilinear map : G×G →G . A canonical generator for G is also computed. Then, the DLIN as-
Webwith k ˘ 2 (i.e., DLIN assumption), it enjoys shorter master public key and secret keys under weaker assumption than Okamoto and Takashima’s IPE, but we have slightly larger ciphertexts. With parameter k ˘ 1 (i.e., SXDH assumption), we can also achieve shorter ciphertexts but at the cost of basing the security on a stronger assumption. rod bible meaningWebApr 29, 2024 · Badrinarayanan et al. [ASIACRYPT 2016] proposed the concept of verifiable FE, which essentially guarantees that dishonest encryptors and authorities, even when colluding together, are not able to generate ciphertexts and … rodbers richmond north yorkshireWeba new DLIN based signature scheme with the necessary properties based on the scheme of Hohenberger and Waters (HW) [HW09a]. Combining this with our transformation yields our nal result: a structure preserving sig-nature scheme whose security is based on the DLIN assumption, which is among the weakest assumptions used in the bilinear group setting.6 o\u0027reilly auto parts lebanon orWeba new DLIN based signature scheme with the necessary properties based on the scheme of Hohenberger and Waters (HW) [HW09a]. Combining this with our transformation yields … rod beuster agenciesWebtively 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] o\u0027reilly auto parts lebanon moWebThe decision linear assumption (DLIN) [BBS’04] The k-DLIN assumption in G: (prime order q) Hierarchy: DDH ≣ 1-DLIN ≥ 2-DLIN ≥ …≥ k-DLIN ≥ … Fact: (k+1)-linear map in G ⇒ k-DLIN is false (homework) Assumption: k-DLIN holds even if k’-linear map in G for k’≤k g 1, g 2 , …, g k, g k+1 g 1 x1, g rod b free bail bondsWebthe existence of a Boolean Pseudo-Random Generator (PRG) in NC0 with polynomial stretch, the Decision Linear (DLIN) assumption on symmetric bilinear groups. Then, … rod bird farm bureau