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Showing 1 to 20 of 96 for “"Obfuscation"”.
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Studies in program obfuscation
Program obfuscation is the software analog to the problem of tamper-proofing hardware. The goal of program obfuscation is to construct a compiler, called an "obfuscator," that garbles the code of a computer program while maintaining its functionality. Commercial products exist to perform this …
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Functional Encryption as Mediated Obfuscation
We introduce a new model for program obfuscation, called mediated obfuscation. A mediated obfuscation is a 3-party protocol for evaluating an obfuscated program that requires minimal interaction and limited trust. The party who originally supplies the obfuscated program need not be online when the …
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Functional Encryption as Mediated Obfuscation
We introduce a new model for program obfuscation, called mediated obfuscation. A mediated obfuscation is a 3-party protocol for evaluating an obfuscated program that requires minimal interaction and limited trust. The party who originally supplies the obfuscated program need not be online when the …
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Succinct garbled RAM from indistinguishablity obfuscation
… relies on the existence of indistinguishability obfuscation, as well as the existence of injective one-way functions. As a building block, I introduce and construct a primitive called asymmetrically constrained encryption (ACE). This primitive is an encryption system for which keys can be …
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Frontiers in Lattice Cryptography and Program Obfuscation
… direction, we explore Cryptographic Program Obfuscation. A program obfuscator is a type of cryptographic software compiler that outputs executable code with the guarantee that ``whatever can be hidden about the internal workings of program code, is hidden.'' Indeed, program obfuscation can be …
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Complexity and obfuscation in evolving platform pricing
Two-sided platforms include some of the largest and fastest-growing businesses of the past decade. They are composed of three parts: two distinct groups of end-users and a platform. Two-sided platforms face unique challenges such as design, pricing, governance rules etc. The pricing decision …
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Structure vs. hardness through the obfuscation lens
… encryption, and even indistinguishability obfuscation; -- Complexity-theoretic Implications: As a corollary of our result, we show a separation between SZK and NP[set-theoretic intersection symbol]coNP and the class PPAD that captures the complexity of computing Nash Equilibria; and -- …
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Low complexity pseudorandom generators and indistinguishability obfuscation
… to constructing indistinguishability obfuscation (IO) schemes based on low-degree multilinear maps. Indeed, Lin and Tessaro recently proposed an intriguing candidate IO scheme based on bilinear maps and a non-standard assumption on "Goldreich-like" pseudorandom generators. We obtain …
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Some Novice methods for Software Protection with Obfuscation
… The method combines software security with code obfuscation techniques, uses the concepts of cryptography like hashing functions and random number generators.
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Geospatial data obfuscation methods applied to agricultural data
… needs urgent investigation. To date, point-based obfuscation methods are the predominant approaches used to protect object confidentiality with spatial pattern and statistical accuracy preservation. In this research, functionality of point-based obfuscation methods for polygon nature objects was …
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Concepts and techniques in software watermarking and obfuscation
… a hot research topic. Software watermarking and obfuscation are techniques to protect software from unauthorized access, modification, and tampering. While software watermarking tries to insert a secret message called software watermark into the software program as evidence of ownership, software …
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Formally Verified Code Obfuscation in the Coq Proof Assistant
Code obfuscation is a software security technique where transformations are applied to source and/or machine code to make them more difficult to analyze and understand to deter reverse-engineering and tampering. However, in many commercial tools, such as Irdeto's Cloakware product, it is not clear …
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Attacks on the Fiat-Shamir paradigm and program obfuscation
… signature schemes, and (2) heuristics for obfuscation. We show that, in some sense, both of these types of heuristics are insecure. Thus, this thesis consists of two parts: (1) The insecuirty of the Fiat-Shamir paradigm: The Fiat-Shamir heuristic provides a general method for transforming …
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Primary User Obfuscation in an Incumbent Informed Spectrum Access System
… Results show the feasibility for PU obfuscation with respect to malicious spectrum sensing users. Simulation results indicate that the obfuscation scheme can deliver location and frequency occupation privacy with 75% and 66% effectiveness respectively in a 100% efficient spectrum …
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Anti-Counterfeit and Anti-Tamper Hardware Implementation using Hardware Obfuscation
… new way to protect against tampering by a clever obfuscation of the design, which can be unlocked with a specific, dynamic path traversal. Hence, the functional mode of the controller is hidden with the help of obfuscated states, and the functional mode is made operational only on the formation of …
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A framework for privacy-preserving, distributed machine learning using gradient obfuscation
Made available in DSpace on 2018-03-02T19:59:44Z (GMT). No. of bitstreams: 2 PHADKE-THESIS-2017.pdf: 14510299 bytes, checksum: e357657487b88e1a0ee47863e6b7f0bc (MD5) LICENSE.txt: 4210 bytes, checksum: fc35d28054217b84ccd68356449c9d17 (MD5) Previous issue date: 2017-07-18
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On the Capacity of Scalar Gaussian Channels Subject to State Obfuscation
… Gaussian fading channel subject to a state-obfuscation constraint imposed in the form of near independence between the channel outputs and the channel coefficients has been studied. By defining the operational capacity as the maximal achievable rate under the state obfuscation constraint, an …
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Incorporating Obfuscation Techniques in Privacy Preserving Database-Driven Dynamic Spectrum Access Systems
… which demonstrate the necessity of applying obfuscation to SU query responses. Finally, we evaluate obfuscation schemes which are compatible with SZ-SAS, verifying the effectiveness of such schemes in preventing an SU inference attack. Our results show SZ-SAS is capable of utilizing …
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