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Compact Ring Signatures from LWE - CRYPTO 2021 Research

Research presented at CRYPTO 2021 introduces a compact ring signature scheme using components instantiated from LWE. The scheme allows each signer to sign on behalf of a ring of users, offering properties of unforgeability, anonymity, and compactness. The work explores the possibility of building co

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Limits on the Efficiency of Ring LWE-based Key Exchange

This study explores the limitations of Ring LWE-based key exchange protocols and their impact on non-interactive key exchange mechanisms. It discusses the LWE assumption, noise distribution, and the practical implications of small moduli q and noise-to-modulus ratio r. Additionally, it delves into P

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Signatures, Commitments, and Zero-Knowledge in Lattice Problems

Explore the intricacies of lattice problems such as Learning With Errors (LWE) and Short Integer Solution (SIS), and their relation to the Knapsack Problem. Delve into the hardness of these problems and their applications in building secure cryptographic schemes based on polynomial rings and lattice

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Overview of BIKE Key Exchange Protocol by Ray Perlner

The BIKE (Bit-Flipping Key Exchange) protocol, presented by Ray Perlner, offers variants based on MDPC codes like McEliece and Niederreiter with a focus on quasi-cyclic structures. These non-algebraic codes show promise for key reduction, targeting IND-CPA security. The protocol features competitive

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Public-key Encryption and LWE: Foundations and Security Theorems

Covering topics such as public-key encryption from LWE, homomorphic encryption, LWE with small secrets, and security theorems. The lecture explores the complexities and applications of cryptographic systems built on lattice-based assumptions, delving into encryption schemes, key generation, decrypti

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Comprehensive Framework for Lattice-Based ABE Using Evasive Inner-Product Encryption

This content delves into a comprehensive framework for Attribute-Based Encryption (ABE) based on lattice structures and evasive inner-product functional encryption. It explores various modalities like Key-Policy ABE and Ciphertext-Policy ABE, along with constructions and assumptions related to Evasi

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Private Information Retrieval with Client Preprocessing: Construction and Bounds

Explore the concept of Private Information Retrieval (PIR) with client-side preprocessing, information-theoretic constructions, lower bounds, and various constructions under different assumptions like DDH, LWE, QR, and more. Discover the trade-offs between client efficiency, server efficiency, hint

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Lower Bound for Proving Hardness of Learning with Rounding

Explore the complexities of learning with rounding in cryptographic systems, including LWE and LWR problems, fundamental hardness assumptions, and constructions of deterministic cryptosystems. Can we directly construct pseudo-random functions from LWR? Delve into the challenges and implications in m

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Empowering Open Science: Enhancing FAIR Data Management with LifeBlock

Explore LifeBlock's impact on EOSC through FAIR data management, storage, and generation. Discover key features such as simple search engine, FAIR principles adherence, efficient blockchain system, and integration with other LWE services. Designed for researchers, policy makers, and developers to ac

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