Cryptographic assumptions
WebFull-entropy bitstrings are important for cryptographic applications, as t對hese bitstrings have ideal randomness properties and may be used for any cryptographic purpose. Due to the difficulty of genera\൴ing and testing full-entropy bitstrings, the SP 800-90 series assumes that a bitstring has full entropy if the amount of entrop對y per ... WebThe concrete outcome of this work is an automated tool which takes as input the statement of an assumption, and outputs either a proof of its generic hardness or shows an algebraic attack against the assumption. Keywords Discrete Logarithm Symbolic Model Side Condition Algebraic Attack Cryptology ePrint Archive
Cryptographic assumptions
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WebAug 16, 2003 · TL;DR: This work introduces Pinocchio, a built system for efficiently verifying general computations while relying only on cryptographic assumptions, and is the first … WebJan 10, 2016 · We believe that the lack of standards of what is accepted as a reasonable cryptographic assumption can be harmful to the credibility of our field. Therefore, there is a great need for measures according to which we classify and compare assumptions, as to which are safe and which are not.
WebAn assumption requiring the inexistence of perfect adversaries corresponds to worst-case complexity, i.e., if the assumption holds then there are at least a few hard instances. However, what is a-priori required in most cases in cryptography is an assumption requiring even the inexistence of weak adver- WebApr 16, 2024 · Indistinguishability Obfuscation \((i\mathcal {O})\) is a highly versatile primitive implying a myriad advanced cryptographic applications. Up until recently, the state of feasibility of \(i\mathcal {O}\) was unclear, which changed with works (Jain-Lin-Sahai STOC 2024, Jain-Lin-Sahai Eurocrypt 2024) showing that \(i\mathcal {O}\) can be finally …
WebAug 12, 2024 · The idealized assumptions typically make information-theoretic proof systems useless as standalone objects. On the other hand, they allow us to construct them unconditionally, without relying on cryptographic assumptions. We will discuss several kinds of information-theoretic proof systems with incomparable features. WebWe now describe four assumptions that will be used to demonstrate the new concept introduced in the paper. The assumptions we use involve factoring, RSA and Discrete log …
WebMay 10, 2024 · And the provable emphasizes the mathematical assumptions or cryptography primitives. But it also related to the computational power. Provable security refers to any security that can be formally proved, even if there are no mathematical hardness assumptions (e.g., information-theoretic security does not necessarily involve …
WebNov 10, 2024 · Modern cryptography takes a completely different approach. The basic assumption is: It doesn’t matter if a cryptogram reveals information about the message. What matters is whether can efficiently extract this information. If we assume that has an unlimited computational capacity, then the previous proposition does not hold. Hence, … tswirl new havenWebDec 18, 2024 · This allows us to capture more cryptographic assumptions such as the Subgroup Decision assumption [ 17 ]. Automated Methods Once we have settled the … phobia of sonic the hedgehogWebApr 14, 2024 · Full-entropy bitstrings are important for cryptographic applications, as these bitstrings have ideal randomness properties and may be used for any cryptographic purpose. Due to the difficulty of generating and testing full-entropy bitstrings, the SP 800-90 series assumes that a bitstring has full entropy if the amount of entropy per bit is at ... phobia of soft thingsWebApr 14, 2024 · The NIST Special Publication (SP) 800-90 series supports the generation of high-quality random bits for cryptographic and non-cryptographic use. The security strength of a random number generator depends on the unpredictability of its outputs. This unpredictability can be measured in terms of entropy, which the NIST SP 800-90 series … tsw itWebAug 25, 2024 · The hardness assumption one works with (roughly there are LWE-type, LWR-type, SIS-type, and NTRU-type assumptions, although defined appropriately one can even view LWR-type assumptions as being a special case of LWE-type assumptions with non-i.i.d. noise). One can get a diversity of schemes. phobia of squaresWebany NP statement under general (rather than number theoretic) assumptions, and how to enable polynomially many provers to give polynomially many such proofs based on a single random string. Our constructions can be used in cryptographic applications in which the prover is restricted to polynomial time. Key words. phobia of speaking in front of crowdsWebApr 16, 2024 · We answer this question in the affirmative, and show that we can allow arbitrarily large gaps between m and n, up to exponential \(m = 2^{O(n)}\).Surprisingly, this shows that unlike time-bounded public-key cryptography,—where we must rely on additional computational assumptions,—space-bounded public-key cryptography can be proven … tswirl new haven ct