Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"multiparty computation"”.
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Rational Multiparty Computation
… functions. This departs from the standard secure multiparty computation setting, where players are assumed to be either honest or malicious. ^ We detail the construction of both a two-party and a multiparty game theoretic framework for constructing rational cryptographic protocols. Our framework …
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Infrastructures for secure multiparty computation
… of implementing an infrastructure for secure multiparty computation (MPC). The goal of our infrastructure is to enable reliable communication, secure computation and fair computation in a network. The desiderata for an infrastructure include reusability, transferability and fault-tolerance. It …
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A trusted execution platform for multiparty computation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2000.
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On time and order in multiparty computation
… their data with others. The theory of secure multiparty computation (MPC) allows parties to compute a function on their joint data while learning the minimum necessary information: the value of the function computed on their joint data (and nothing else). However, the theory of MPC does not …
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Relationships between functionality, security, and privacy for multiparty computation, hashing, and encryption
… and have been able to build protocols for secure multiparty computation, collision-resistant hash functions, public key cryptography, and much more. This thesis explores three facets of this balance. First, we delve into Topology-Hiding Computation, which is multiparty computation where we also …
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Secure Computation in Heterogeneous Environments: How to Bring Multiparty Computation Closer to Practice?
Many services that people use daily require computation that depends on the private data of multiple parties. While the utility of the final result of such interactions outweighs the privacy concerns related to output release, the inputs for such computations are much more sensitive and need to be …
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Keep it secret, keep it safe : privacy, security, and robustness in an adversarial world
… or devices necessitates the design of computational frameworks that are resilient to failures or malicious actors. This thesis introduces algorithms and definitions for a series of problems concerning robustness, security, and privacy in the many-party setting. We describe protocols for …
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Network oblivious transfer
… of improving the concrete efficiency of secure multiparty computation (MPC), we study the possibility of implementing an infrastructure for MPC. We propose an infrastructure based on oblivious transfer (OT), which would consist of OT channels between some pairs of parties in the network. We …
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On foundations of public-key encryption and secret sharing
… notions of security in secret sharing, multiparty computation and statistical zero knowledge; and by providing a large toolbox used extensively in cryptography. This thesis addresses two questions in this realm: Leakage Resilience of Secret Sharing Schemes. We show that classical secret …
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Succinct publicly auditable MPC with universal setup
In recent years, Multiparty computation as a service (MPCSaaS) is gaining popularity as a promising approach for building privacy-preserving communication systems. Although there has been significant improvement in the efficiency and robustness of such protocols, in this thesis, we argue that these …
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Privacy-preserving query processing over encrypted data in cloud
… encrypted data. Based on the concept of Secure Multiparty Computation (SMC), SMC-based distributed protocols were developed to allow the cloud to perform queries directly over encrypted data. These protocols protect the confidentiality of the stored data, user queries, and data access patterns …
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Efficient secure computation enabled by blockchain technology
For several decades, secure multiparty computation has been the topic of extensive research, as it enables computing any functionality in a privacy-preserving manner, while ensuring correctness of the outputs. In recent years, the field has seen tremendous progress in terms of efficiency, although …
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Secure Computation in Decentralized Systems
… on blockchains. The research employs Secure Multiparty Computation (MPC) techniques to address these issues, demonstrating how MPC, which already shares a similar distributed trust threat model, can enhance privacy in decentralized systems. More specifically, this thesis focuses on the …
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Building blocks for robust, private, and decentralized computation
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-12-04 without embargo terms
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Multiparty Protocols for Tree Classifiers
… data unintelligible, preventing any meaningful computation without decryption. On the one hand, data owners want to maintain control over their sensitive data. On the other hand, there is a high business incentive for collaborating with an untrusted external party. Modern cryptography …
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Selfishness and Malice in Distributed Systems
… no more corruptions. In the problem of reliable multiparty computation (RMC), there are n parties, each with an individual input, and the parties want to jointly and reliably compute a function f over n inputs, assuming that it is not necessary to maintain the privacy of the inputs. The problem …
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Multiplicative codes of Reed-Muller type
… of cryptography and coding theory, especially to multiparty computa- tion and secret sharing schemes. We also study the AB method to analyze the minimum distance of linear codes. The multiplicative codes of Reed-Muller type and the AB method are connected when we study the distance and dual …
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On Black-Box Complexity and Adaptive, Universal Composability of Cryptographic Tasks
… part of this thesis, we present protocols for multiparty computation (MPC) in the Universal Composability (UC) model that are secure against malicious, adaptive adversaries. In the standard model, security is only guaranteed in a stand-alone setting; however, nothing is guaranteed when multiple …
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Secure transformation of cryptographic protocols
This Dissertation was approved for publication on 2020-12-03 at 10:35.
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