搜索结果: 1-15 共查到“军事学 indistinguishability obfuscation”相关记录51条 . 查询时间(0.061 秒)
Indistinguishability Obfuscation Without Multilinear Maps: New Paradigms via Low Degree Weak Pseudorandomness and Security Amplification
PFG iO
2019/6/4
The existence of secure indistinguishability obfuscators (iO) has far-reaching implications, significantly expanding the scope of problems amenable to cryptographic study. All known approaches to cons...
Candidate Differing-Inputs Obfuscation from Indistinguishability Obfuscation and Auxiliary-Input Point Obfuscation
Indistinguishability Obfuscation Auxiliary-Input Point Obfuscation
2018/11/2
Differing-inputs obfuscation (diO), first proposed by Barak et. al. [4], provides stronger security than that provided by indistinguishability obfuscation (iO). An iO scheme provides indistinguishabil...
Pseudo Flawed-Smudging Generators and Their Application to Indistinguishability Obfuscation
indistinguishability obfuscation functional encryption pseudo-randomness
2018/7/9
We construct indistinguishability obfuscation from subexponentially secure Learning With Errors (LWE), bilinear maps, a constant-locality Pseudo Random Generator (PRG), and a new tool called Pseudo Fl...
New Methods for Indistinguishability Obfuscation: Bootstrapping and Instantiation
indistinguishability obfuscation functional encryption bootstrapping
2018/6/27
In a recent work, Lin and Tessaro [LT17] (LT) show that iO may be constructed using i) Functional Encryption (FE) for polynomials of degree LL , ii) Pseudorandom Generators (PRG) with blockwise locali...
Indistinguishability Obfuscation Without Multilinear Maps: iO from LWE, Bilinear Maps, and Weak Pseudorandomness
Indistinguishability Obfuscation Functional Encryption
2018/6/25
The existence of secure indistinguishability obfuscators (iO) has far-reaching implications, significantly expanding the scope of problems amenable to cryptographic study. All known approaches to cons...
Recently, Albrecht, Davidson, Larraia, and Pellet-Mary constructed a variant of the GGH13 without ideals and presented the distinguishing attacks in simplified branching program and obfuscation securi...
Fast and Adaptively Secure Signatures in the Random Oracle Model from Indistinguishability Obfuscation
Signature scheme indistinguishability obfuscation puncturable pseudo-random functions
2017/10/9
Indistinguishability obfuscation (iO) is a powerful cryptographic tool often employed to construct a variety of core cryptographic primitives such as public key encryption and signatures. In this pape...
Indistinguishability Obfuscation for All Circuits from Secret-Key Functional Encryption
Indistinguishability obfuscation Secret-key functional encryption Puncturable secret-key functional encryption
2017/4/27
We show that indistinguishability obfuscation (IO) for all circuits can be constructed solely from secret-key functional encryption (SKFE). In the construction, SKFE need to be able to issue a-priori ...
On the Non-Existence of Blockwise 2-Local PRGs with Applications to Indistinguishability Obfuscation
PRG Blockwise 2-Local PRGs
2017/4/11
Lin and Tessaro (Eprint 2017/250) recently proposed indistinguishability obfuscation and functional encryption candidates and proved their security based on a standard assumption on bilinear maps and ...
Indistinguishability Obfuscation: Simpler Constructions using Secret-Key Functional Encryption
Indistinguishability Obfuscation Functional Encryption
2017/3/27
We propose simple generic constructions of indistinguishability obfuscator (IO). Our key tool is exponentially-efficient indistinguishability obfuscator (XIO), which is the same as IO except that the ...
Indistinguishability Obfuscation from Bilinear Maps and Block-Wise Local PRGs
Indistinguishability Obfuscation Bilinear Maps Block-wise Local PRGs
2017/3/21
Recent works (Lin, EUROCRYPT'16, ePrint'16; Lin and Vaikunthanathan, FOCS'16; Ananth and Sahai, EUROCRYPT'17) establish a tight connection between constructions of indistinguishability obfuscation fro...
Robust Transforming Combiners from Indistinguishability Obfuscation to Functional Encryption
Indistinguishability Obfuscation Universal Constructions Correctness Amplifiers
2017/2/20
Indistinguishability Obfuscation (iO) has enabled an incredible number of new and exciting applications. However, our understanding of how to actually build secure iO remains in its infancy. While man...
Indistinguishability Obfuscation from DDH-like Assumptions on Constant-Degree Graded Encodings
Obfuscation Constant-Degree Graded Encoding Schemes SXDH
2016/12/10
All constructions of general purpose indistinguishability obfuscation (IO) rely on either meta-assumptions that encapsulate an exponential family of assumptions (e.g., Pass, Seth and Telang, CRYPTO 20...
Zeroizing Attacks on Indistinguishability Obfuscation over CLT13
Multilinear Maps CLT13 Indistinguishability Obfuscation
2016/12/8
In this work, we describe a new polynomial-time attack on the multilinear maps of Coron,
Lepoint, and Tibouchi (CLT13), when used in candidate iO schemes. More specifically, we show that
given the o...
Indistinguishability Obfuscation from DDH on 5-linear Maps and Locality-5 PRGs
Indistinguishability Obfuscation 5-linear Maps Local PRG
2016/12/7
When plugging in a candidate PRG with locality-5 (eg, [Goldreich, ECCC 2010, O'Donnell and Witmer, CCC 2014]), we obtain a construction of IO from subexponential DDH on 5-linear maps and LWE. Previous...