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Polynomial Multiplication in NTRU Prime [PDF]
Transactions on Cryptographic Hardware and Embedded Systems, 2020 This paper proposes two different methods to perform NTT-based polynomial multiplication in polynomial rings that do not naturally support such a multiplication. We demonstrate these methods on the NTRU Prime key-encapsulation mechanism (KEM) proposed by
Erdem Alkim +10 more
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Multi-Parameter Support with NTTs for NTRU and NTRU Prime on Cortex-M4
Transactions on Cryptographic Hardware and Embedded Systems, 2022 We propose NTT implementations with each supporting at least one parameter of NTRU and one parameter of NTRU Prime. Our implementations are based on size-1440, size-1536, and size-1728 convolutions without algebraic assumptions on the target polynomial ...
Erdem Alkim, Vincent Hwang, Bo-Yin Yang
doaj +5 more sources
Gadget-based Masking of Streamlined NTRU Prime Decapsulation in Hardware
Transactions on Cryptographic Hardware and Embedded Systems, 2023 Streamlined NTRU Prime is a lattice-based Key Encapsulation Mechanism (KEM) that is, together with X25519, the default algorithm in OpenSSH 9. Based on lattice assumptions, it is assumed to be secure also against attackers with access to< large-scale ...
Georg Land +3 more
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NTRU Type Fully Homomorphic Encryption Scheme over Prime Power Cyclotomic Rings [PDF]
Jisuanji kexue, 2022 Full homomorphic encryption (FHE) supports arbitrary computation on the ciphertext without the requirement of decryption,which provides protection for privacy security in cloud computing.However,the current FHE scheme constructed using the approximate ...
QIN Xiao-yue, HUANG Ru-wei, YANG Bo
doaj +2 more sources
Transactions on Cryptographic Hardware and Embedded Systems, 2019 This paper applies a variety of power analysis techniques to several implementations of NTRU Prime, a Round 2 submission to the NIST PQC Standardization Project.
Wei-Lun Huang +2 more
doaj +3 more sources
Will You Cross the Threshold for Me?
Transactions on Cryptographic Hardware and Embedded Systems, 2021 In this work, we propose generic and novel side-channel assisted chosenciphertext attacks on NTRU-based key encapsulation mechanisms (KEMs). These KEMs are IND-CCA secure, that is, they are secure in the chosen-ciphertext model.
Prasanna Ravi +4 more
doaj +1 more source
Streamlined NTRU Prime on FPGA
Journal of Cryptographic Engineering, 2022 AbstractWe present a novel full hardware implementation of Streamlined NTRU Prime, with two variants: a high-speed, high-area implementation and a slower, low-area implementation. We introduce several new techniques that improve performance, including a batch inversion for key generation, a high-speed schoolbook polynomial multiplier, an NTT polynomial
Bo-Yuan Peng +4 more
openaire +1 more source
IET Information Security, 2021 Multi‐key fully homomorphic encryption (MKFHE) allows computations on ciphertexts encrypted by different users, which can be applied to implement secure multi‐party computing (MPC).
TanPing Zhou +5 more
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Curse of Re-encryption: A Generic Power/EM Analysis on Post-Quantum KEMs
Transactions on Cryptographic Hardware and Embedded Systems, 2021 This paper presents a side-channel analysis (SCA) on key encapsulation mechanism (KEM) based on the Fujisaki–Okamoto (FO) transformation and its variants.
Rei Ueno +5 more
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Multiple-Valued Plaintext-Checking Side-Channel Attacks on Post-Quantum KEMs
Transactions on Cryptographic Hardware and Embedded Systems, 2023 In this paper, we present a side-channel analysis (SCA) on key encapsulation mechanisms (KEMs) based on the Fujisaki–Okamoto (FO) transformation and its variants.
Yutaro Tanaka +5 more
doaj +1 more source