Quantum Cryptography

insight - Quantum Cryptography

Efficient Construction of Statistically Secure Pseudorandom States and Commitments in the Common Haar State Model

The authors construct a statistically secure pseudorandom state generator in the common Haar state model, where the output length is strictly larger than the key size. They also construct an unconditionally secure quantum commitment scheme in the same model.

Constructing and Separating Quantum Pseudorandomness from a Single Haar Random State

A single Haar random quantum state can be used to construct single-copy pseudorandom states (1PRS), which are computationally indistinguishable from a Haar random state for a single copy. However, this single Haar random state is not sufficient to construct the stronger notion of (multi-copy) pseudorandom states (PRS).

Quantum One-Way State Generators Imply Quantum Commitments

Quantum one-way state generators (OWSGs) with O(n/log(n)) copies are equivalent to quantum commitments and to polytime-copy OWSGs. The weakest OWSGs from which quantum commitments can be obtained are those with O(n/log(n)) copies.

Quantum Money from Abelian Group Actions: Construction and Security Analysis

Konstruktion und Sicherheitsanalyse von öffentlichem Schlüsselquantengeld aus abelschen Gruppenaktionen.

CRYSTALS-Dilithium Quantum Security Evaluation

SelfTargetMSIS hardness proof for Dilithium security.

Exakte Homomorphe Verschlüsselung: Rahmenwerk und Sicherheit

Exakte Homomorphe Verschlüsselung ermöglicht genaue Berechnungen auf verschlüsselten Daten ohne vorherige Entschlüsselung.

Quantum Key Leasing for PKE and FHE with a Classical Lessor: A Detailed Analysis

Quantum Key Leasing enables secure key sharing between classical lessors and quantum lessees, ensuring strong security guarantees.

Pseudorandom und Pseudoentangled States aus Teilmengenstaaten

Teilmenge Staaten können Pseudorandom States konstruieren.

Block-MDS QC-LDPC Codes for Information Reconciliation in Quantum Key Distribution

새로운 LDPC 코드 디자인을 통해 양자 키 분배에서 정보 조정을 위한 Block-MDS QC-LDPC 코드의 중요성을 강조합니다.

Quantum Identity-Based Signature Protocol for Secure Email Communication

Designing a quantum identity-based signature protocol for secure email communication.

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