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A Conditional Privacy Preserving Authentication and Multi Party Group Key Establishment Scheme for Real-Time Application in VANETs
Password Authentication VANET Group-Key generation
2019/9/19
Vehicular Ad-hoc Networks (VANETs) are a cardinal part of intelligent transportation system (ITS) which render various services in terms of traffic and transport management. The VANET is used to manag...
Beyond Honest Majority: The Round Complexity of Fair and Robust Multi-party Computation
Fairness and Guaranteed Output Delivery MPC Round Complexity
2019/9/5
Two of the most sought-after properties of Multi-party Computation (MPC) protocols are fairness and guaranteed output delivery (GOD), the latter also referred to as robustness. Achieving both, however...
A High-Assurance, Automatically-Synthesized, Evaluator for Machine-Checked (Proactively) Secure Multi-Party Computation
Secure Multi-Party Computation Verified Implementation High-Assurance Cryptography
2019/8/14
Secure Multi-Party Computation (MPC) enables a group of nn distrusting parties to jointly compute a function using private inputs. MPC guarantees correctness of computation and confidentiality of inpu...
Privacy-Preserving Classification of Personal Text Messages with Secure Multi-Party Computation: An Application to Hate-Speech Detection
cryptographic protocols SMC
2019/6/26
Classification of personal text messages has many useful applications in surveillance, e-commerce, and mental health care, to name a few. Giving applications access to personal texts can easily lead t...
Improved Building Blocks for Secure Multi-Party Computation based on Secret Sharing with Honest Majority
cryptographic protocols secret sharing
2019/6/19
Secure multi-party computation permits evaluation of any desired functionality on private data without disclosing the data to the participants and is gaining its popularity due to increasing collectio...
Private Simultaneous Messages (PSM) is a minimal model for information-theoretic non-interactive multi-party computation. In the 2-party case, Beimel et al. showed every function f:[N]×[N]→{0,1}f:[N]×...
Smart contracts are self-executing agreements written in program code and are envisioned to be one of the main applications of blockchain technology. While they are supported by prominent cryptocurren...
MPCircuits: Optimized Circuit Generation for Secure Multi-Party Computation
Multi-party computation secure function evaluation logic synthesis
2019/3/13
Secure Multi-party Computation (MPC) is one of the most influential achievements of modern cryptography: it allows evaluation of an arbitrary function on private inputs from multiple parties without r...
Efficient Information Theoretic Multi-Party Computation from Oblivious Linear Evaluation
information theoretic multi-party computation oblivious linear evaluation
2019/1/2
Oblivious linear evaluation (OLE) is a two party protocol that allows a receiver to compute an evaluation of a sender's private, degree 11 polynomial, without letting the sender learn the evaluation p...
Multi-Party Oblivious RAM based on Function Secret Sharing and Replicated Secret Sharing Arithmetic
cryptographic protocols RAM
2019/1/2
In this work, we study the problem of constructing oblivious RAM for secure multi-party computation to obliviously access memory at private locations during secure computation. We build on recent two-...
In a poisoning attack against a learning algorithm, an adversary tampers with a fraction of the training data T with the goal of increasing the classification error of the constructed hypothesis/model...
Coin toss has been extensively studied in the cryptography literature, and the well-accepted notion of fairness (henceforth called strong fairness) requires that a corrupt coalition cannot cause non-n...
BeeHive: Double Non-interactive Secure Multi-party Computation
Secure multi-party computation secret sharing non-interactive
2018/8/16
Currently, round complexity and communication complexity are two fundamental issues of secure multi-party computation (MPC) since all known schemes require communication for each multiplication operat...
Improved Signature Schemes for Secure Multi-Party Computation with Certified Inputs
cryptographic protocols Certified Inputs
2018/8/16
The motivation for this work comes from the need to strengthen security of secure multi-party protocols with the ability to guarantee that the participants provide their truthful inputs in the computa...
Function-Dependent Commitments for Verifiable Multi-Party Computation
Commitments Homomorphic Cryptography Verifiable Computation
2018/7/9
In cloud computing, delegated computing raises the security issue of guaranteeing data authenticity during a remote computation. Existing solutions do not simultaneously provide fast correctness verif...