Results 21 to 30 of about 9,817 (168)
Faster Bootstrapping via Modulus Raising and Composite NTT
Transactions on Cryptographic Hardware and Embedded Systems, 2023 FHEW-like schemes utilize exact gadget decomposition to reduce error growth and ensure that the bootstrapping incurs only polynomial error growth. However, the exact gadget decomposition method requires higher computation complexity and larger memory ...
Zhihao Li +6 more
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NTT Multiplication for NTT-unfriendly Rings
Transactions on Cryptographic Hardware and Embedded Systems, 2021 In this paper, we show how multiplication for polynomial rings used in the NIST PQC finalists Saber and NTRU can be efficiently implemented using the Number-theoretic transform (NTT).
Chi-Ming Marvin Chung +5 more
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Highly Efficient Architecture of NewHope-NIST on FPGA using Low-Complexity NTT/INTT
Transactions on Cryptographic Hardware and Embedded Systems, 2020 NewHope-NIST is a promising ring learning with errors (RLWE)-based postquantum cryptography (PQC) for key encapsulation mechanisms. The performance on the field-programmable gate array (FPGA) affects the applicability of NewHope-NIST.
Neng Zhang +5 more
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Configurable Mixed-Radix Number Theoretic Transform Architecture for Lattice-Based Cryptography
IEEE Access, 2022 Lattice-based cryptography continues to dominate in the second-round finalists of the National Institute of Standards and Technology post-quantum cryptography standardization process. Computational efficiency is primarily considered to evaluate promising
Phap Duong-Ngoc, Hanho Lee
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NTT and Inverse NTT Quantum Circuits in CRYSTALS-Kyber for Post-Quantum Security Evaluation
Applied Sciences, 2023 The emergence of quantum computers threatens current cryptographic systems, and NIST is preparing for the post-quantum era through the post-quantum cryptography (PQC) contest. CRYSTALS-Kyber is a lattice-based cipher suite that is used as a PQC standard.
Gyeongju Song +4 more
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Fiddling the Twiddle Constants - Fault Injection Analysis of the Number Theoretic Transform
Transactions on Cryptographic Hardware and Embedded Systems, 2023 In this work, we present the first fault injection analysis of the Number Theoretic Transform (NTT). The NTT is an integral computation unit, widely used for polynomial multiplication in several structured lattice-based key encapsulation mechanisms ...
Prasanna Ravi +4 more
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Area-Time Efficient Hardware Architecture for CRYSTALS-Kyber
Applied Sciences, 2022 This paper presents a novel area-time efficient hardware architecture of the lattice-based CRYSTALS-Kyber, which has entered the third round of the post-quantum cryptography standardization competition hosted by the National Institute of Standards and ...
Tuy Tan Nguyen +3 more
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Kavach: Lightweight masking techniques for polynomial arithmetic in lattice-based cryptography
Transactions on Cryptographic Hardware and Embedded Systems, 2023 Lattice-based cryptography has laid the foundation of various modern-day cryptosystems that cater to several applications, including post-quantum cryptography. For structured lattice-based schemes, polynomial arithmetic is a fundamental part. In several
Aikata Aikata +4 more
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Cryptography, 2023 The Number Theoretic Transform (NTT) has been widely used to speed up polynomial multiplication in lattice-based post-quantum algorithms. All NTT operands use modular arithmetic, especially modular multiplication, which significantly influences NTT ...
Trong-Hung Nguyen +2 more
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Cortex-M4 optimizations for {R,M} LWE schemes
Transactions on Cryptographic Hardware and Embedded Systems, 2020 This paper proposes various optimizations for lattice-based key encapsulation mechanisms (KEM) using the Number Theoretic Transform (NTT) on the popular ARM Cortex-M4 microcontroller.
Erdem Alkim +3 more
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