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 26 for “"Trusted Third Party"”.
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Design and Evaluate a Fair Exchange Protocol Based on Online Trusted Third Party (TTP)
One of the most crucial factors that e-commerce protocols should address is a fair exchange. In this research, an advanced method of cryptography coupled with the pay per use technique is used. A new electronic commerce protocol for the exchange of commodities is introduced. The proposed new …
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Digital Receipts: A System to Detect the Compromise of Digital Certificates
… logging messages sent via side channels to a trusted third party. This third party correlates these messages and automatically detects when an imposter presents a certificate based on the collected evidence.
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Mobile agent security through multi-agent cryptographic protocols.
… hard but important. Based on secure multi-party computation, a recent research direction shows the feasibility of a software-only solution to this problem, which had been deemed impossible by some researchers previously. The best result prior to this dissertation is a single-agent protocol …
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The Elgamal Cryptosystem is better than Th RSA Cryptosystem for Mental Poker
… encryption/decryption schemes and neither uses a trusted third party (TTP). The comparison criteria will be concentrated on the security and computational complexity of the game, collusions among the players and the debate between the discrete logarithm problem (DLP) and the factoring problem (FP) …
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Hardware Trojan Detection via Golden Reference Library Matching
… to the proliferation of hardware Trojans in third party Intellectual Property (IP) designs, the issue of hardware security has risen to the forefront of computer engineering. Because of the miniscule size yet devastating effects of hardware Trojans, few detection methods have been presented …
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Achieving Fair Exchange and Customer Anonymity for Online Products in Electronic Commerce
… to the transacting parties by making use of a Trusted Third Party. The research is also aimed at ensuring payment security and making use of a single payment token to enhance the efficiency of the protocol. The proposed protocol consists of pre-negotiation, negotiation, withdrawal, purchase and …
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A SMART CARD BASED OFF-LINE ELECTRONIC CASH PAYMENT SYSTEM WITH FAIR TRANSACTIONS
… is achieved by making use of an off-line Trusted Third Party (TTP). The first protocol is designed from the point of view of after-transaction resolution. This protocol is more efficient than the second one and is best suited for transactions involving low value payments. The second …
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Leveraging Smart Contracts for Asynchronous Group Key Agreement in Internet of Things
… secrecy definitions without the existence of a Trusted Third Party (TTP). TTP is often used by IoT devices in the establishment of ad hoc networks and usually, these devices are resource-constrained. Second, the GKA mechanism must be capable of distributing session keys successfully even with …
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Functional Encryption as Mediated Obfuscation
… 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 client wants to evaluate the program. A semi-trusted …
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Functional Encryption as Mediated Obfuscation
… 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 client wants to evaluate the program. A semi-trusted …
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New Approaches for Ensuring User Online Privacy
… a privacy policy that is authenticated by a trusted third party. Only web sites that possess and adhere to their privacy policies are allowed to collect child's information; web sites whose policies do not match the client's preferences are blocked. POCKET framework incorporates a transaction …
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End-to-end security in service-oriented architecture
… trust, we designed the trust manager, which is a trusted-third party service. Second, we developed an end-to-end inter-service policy monitoring and enforcement framework (PME framework), which is able to dynamically inspect the interactions between services at runtime and react to the potentially …
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SNARKs for C : verifying program executions succinctly and in zero knowledge
… of NP statements, given proofs produced by an untrusted yet computationally-bounded prover. Our system is publicly verifiable: after a trusted third-party has generated a proving key and a verification key, anyone can use the proving key to generate non-interactive proofs for adaptively-chosen NP …
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Prevention of personally identifiable information leakage in ecommerce using offline data minimization and online pseudonymisation.
… to the internet. The methodology employed the Trusted Third Party (TTP) approach. This meant having a third party collecting PII from e-commerce users and confirming the KYC of users who would like to be granted access to e-commerce platforms hence preventing the spreading of aggregated PII …
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Prevention of personally identifiable information leakage in ecommerce using offline data minimization and online pseudonymisation.
… to the internet. The methodology employed the Trusted Third Party (TTP) approach. This meant having a third party collecting PII from e-commerce users and confirming the KYC of users who would like to be granted access to e-commerce platforms hence preventing the spreading of aggregated PII …
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Formally verifying the security properties of a proof-of-stake blockchain protocol
… persistence and liveness. Without the need of a trusted third party, it appears to prevent double-spending attacks. Bitcoin's security is obtained by the use of cryptographically secure chains of blocks for time-stamping (hence the name 'blockchain') and a technique, often called Nakamoto …
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On deploying succinct zero-knowledge proofs
… new technology in the wild: often introducing a trusted third party in lieu of a proof system achieves users' security goals with lower anticipated cost. The goal of this thesis is to lower the cost of using zero-knowledge proofs in real-world systems. This cost has two major components: the cost …
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Efficient zero-knowledge range arguments and privacy-preserving applications
… blockchain technology and secure multi-party computation, this approach enables users to form coalitions for coordinated switch decisions in a decentralized manner without relying on a trusted third party. We develop an effective solution to support decentralized privacy-preserving group …
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Efficient zero-knowledge range arguments and privacy-preserving applications
… blockchain technology and secure multi-party computation, this approach enables users to form coalitions for coordinated switch decisions in a decentralized manner without relying on a trusted third party. We develop an effective solution to support decentralized privacy-preserving group …
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Toward Privacy-Preserving and Secure Dynamic Spectrum Access
… operation data would be exposed to any snooping party, including the central server itself. Secondly, we develop a privacy-preserving design named IP-SAS for the exclusion-zone- based server-driven DSA system. We extend the basic design that only considers semi- honest adversaries to include …
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