[PDF] Top 20 Sequestro internacional de crianças e o princípio do melhor interesse da criança
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Immunizing Multilinear Maps Against Zeroizing Attacks
... for Maps with Arbitrary ...poly-degree multilinear maps (Definition ...known multilinear map constructions, including CLT, due to the noise ...new multilinear maps are discovered ... See full document
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New multilinear maps from ideal lattices
... The GGH13 scheme is first suffered from the weak discrete logarithm attack presented by authors themselves [GGH13]. By using the weak-DL attack, one can get related information of some secret parameters in the scheme ... See full document
25
Multilinear Map via Scale-Invariant FHE: Enhancing Security and Efficiency
... security against the zeroizing attacks (EUROCRYPT 2015, IACR-Eprint 2015/934, IACR-Eprint 2015/941), which totally broke Coron, Lepoint, and Tibouchi’s integer-based construction (CRYPTO 2013, ... See full document
12
Statistical Zeroizing Attack: Cryptanalysis of Candidates of BP Obfuscation over GGH15 Multilinear Map
... of zeroizing attacks does not damage the security of current iO constructions from the candidate multilinear ...of zeroizing attacks [9–14,32], which employs algebraic relations of the ... See full document
22
Graph-Induced Multilinear Maps from Lattices
... Roughly speaking, previous works all followed a similar strategy for obfuscating branching programs. Starting from a given oblivious branching program, encoded as permutation matrices, they all applied Kilian’s ... See full document
8
Cryptanalysis of the New CLT Multilinear Maps
... Multilinear maps. The cryptographic multilinear map has many applications, includ- ing non-interactive key exchange, general program obfuscation, and efficient broadcast ...of multilinear ... See full document
6
Quantum Attacks against Indistinguishablility Obfuscators Proved Secure in the Weak Multilinear Map Model
... underlying multilinear map (to try to avoid zeroizing at- tacks) and prove VBB security of their obfuscator in some idealised ...But zeroizing attacks against multilinear ... See full document
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New Constructions of Revocable Identity-Based Encryption from Multilinear Maps
... Security against chosen-ciphertext attacks (CCA security) is similar to se- curity against chosen-plaintext attacks (CPA security) except that an adversary can request a ciphertext decryption ... See full document
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New Multilinear Maps over the Integers
... Extension. A similar attack applies against two independent approaches to fix the CLT scheme, [GGHZ14, Sec. 7] and [BWZ14], proposed shortly after the Cheon et al. attack. Namely, although the two countermeasures ... See full document
10
Abstract . Recently, Coron presented an attack of GGH15 multilinear maps, which breaks the
... Multilinear maps have many applications including one-round multipartite key exchange [GGH13, BZ14], witness encryption [GGSW13] and program obfuscation ...cryptographic multilinear maps was ... See full document
13
Compact Attribute-Based Encryption and Signcryption for General Circuits from Multilinear Maps
... construction against chosen plaintext attack (CPA) under the Multilinear Decisional Diffie-Hellman ...current multilinear map candidates has been justified by means of rigorous cryptanalysis rather ... See full document
12
On the Equivalence of Obfuscation and Multilinear Maps
... [BGK + 14] Boaz Barak, Sanjam Garg, Yael Tauman Kalai, Omer Paneth, and Amit Sahai. Protecting obfuscation against algebraic attacks. In Advances in Cryptology - EUROCRYPT 2014 - 33rd Annual International ... See full document
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Zeroizing without zeroes: Cryptanalyzing multilinear maps without encodings of zero
... The attacks that we sketched above point to the inadequacy of the generic graded-encoding model as used in recent ...these attacks are highly algebraic and yet they are not captured by that generic ... See full document
12
Return of GGH15: Provable Security Against Zeroizing Attacks
... asymmetric multilinear maps such as GGH13 and CLT13, plaintexts are encoded relative to subsets ` ⊆ [κ], where κ is a positive ...“mixed-input” attacks [22, ...“Graph-Induced Multilinear ... See full document
33
Zeroizing Without Low-Level Zeroes: New MMAP Attacks and Their Limitations
... “approximate multilinear maps” candidates suffer from zeroizing attacks, where encodings of zero at levels below the top (zero-test) level can be exploited to recover information that should ... See full document
11
Cryptanalysis of Two Candidate Fixes of Multilinear Maps over the Integers
... attack against the multilinear map of Coron, Lepoint and Tibouchi (CLT), two independent approaches to thwart this attack have been proposed on the cryptology ePrint archive, due to Garg, Gentry, Halevi and ... See full document
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Indistinguishability Obfuscation Without Multilinear Maps: iO from LWE, Bilinear Maps, and Weak Pseudorandomness
... ∆RG maps n integers to m integers, and has the property that for any sufficiently short vector a ∈ Z m , all efficient adversaries must fail to distinguish the distributions ∆RG(s) and (∆RG(s)+a), with at least ... See full document
13
Fully Secure Attribute Based Encryption from Multilinear Maps
... At a very high level, our basic ABE scheme is reminiscent of Yao’s garbled circuits, with 4 gadgets per gate of the circuit, but where the decrypter in our scheme puts together the appropriate subset of gate gadgets like ... See full document
21
GGHLite: More Efficient Multilinear Maps from Ideal Lattices
... Bilinear maps (κ = 2) and multilinear maps have a lot of cryptographic applications, see [16,27,6] and [7,26,22,25], ...bilinear maps, built with pairings on elliptic curves, the construction ... See full document
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Multilinear Maps Using Ideal Lattices without Encodings of Zero
... of multilinear maps, which is an extension of bilinear ...bilinear maps, such as [SOK00, Jou00, BF03, Sma03] and multilinear maps [BS03, RS09, PTT10, ...bilinear maps, which come ... See full document
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