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MATCHA: A Fast and Energy-Efficient Accelerator for Fully Homomorphic Encryption over the Torus [article]

Lei Jiang and Qian Lou and Nrushad Joshi
2022 arXiv   pre-print
Fully Homomorphic Encryption over the Torus (TFHE) allows arbitrary computations to happen directly on ciphertexts using homomorphic logic gates.  ...  In this paper, we propose a fast and energy-efficient accelerator, MATCHA, to process TFHE gates.  ...  Recently, Fully Homomorphic Encryption (FHE) [3, 5, 6] emerges as one of the most promising cryptographic solutions to allowing arbitrary computations on encrypted data in untrusted cloud servers.  ... 
arXiv:2202.08814v1 fatcat:hrobl6h5gffsdcm2csvtvd25f4

Virtual Secure Platform: A Five-Stage Pipeline Processor over TFHE [article]

Kotaro Matsuoka, Ryotaro Banno, Naoki Matsumoto, Takashi Sato, Song Bian
2020 arXiv   pre-print
We present Virtual Secure Platform (VSP), the first comprehensive platform that implements a multi-opcode general-purpose sequential processor over Fully Homomorphic Encryption (FHE) for Secure Multi-Party  ...  We demonstrate that compared to the best existing processor over FHE, our implementation runs nearly 1,600× faster.  ...  Building upon the well-known Torus Fully Homomorphic Encryption (TFHE) scheme, VSP allows any user with an arbitrary C program to execute their codes in an SCO manner.  ... 
arXiv:2010.09410v1 fatcat:a6wnvrmu3jb4xb4ywqv4f7ro6q

Revisiting the functional bootstrap in TFHE

Antonio Guimarães, Edson Borin, Diego F. Aranha
2021 Transactions on Cryptographic Hardware and Embedded Systems  
The faster bootstraps of TFHE strengthened this approach, which was later named Functional Bootstrap (Boura et al., CSCML'19).  ...  Compared to works using logic gates, we achieved speedups of up to 6.98, 8.74, and 3.55 times over 8-bit implementations of the functions ReLU, Addition, and Maximum, respectively.  ...  All currently known fully homomorphic encryption (FHE) schemes rely on noisy ciphertexts for security, i.e., the encryption process adds a small error (noise) to the message.  ... 
doi:10.46586/tches.v2021.i2.229-253 fatcat:x2ezslo7prcvjckszu5coswtza

Chimera: a unified framework for B/FV, TFHE and HEAAN fully homomorphic encryption and predictions for deep learning [article]

Christina Boura, Nicolas Gama, Mariya Georgieva
2018 IACR Cryptology ePrint Archive  
First and foremost, it becomes an integral tool for the recent standardization initiatives of homomorphic schemes and common APIs.  ...  This paper proposes a practical hybrid solution for combining and switching between three popular Ring-LWE-based FHE schemes: TFHE, B/FV and HEAAN.  ...  First, the scheme TLWE encrypts messages over the entire torus T and produces ciphertexts in T N +1 .  ... 
dblp:journals/iacr/BouraGG18 fatcat:wx42tm66r5aqpcjgkusb5pbmbu

Integer-Wise Functional Bootstrapping on TFHE: Applications in Secure Integer Arithmetics

Hiroki Okada, Shinsaku Kiyomoto, Carlos Cid
2021 Information  
TFHE is a fast fully homomorphic encryption scheme proposed by Chillotti et al. in Asiacrypt' 2018.  ...  Integer-wise TFHE is a generalized version of TFHE that can encrypt the plaintext of an integer that was implicitly presented by Chillotti et al., and Bourse et al. presented the actual form of the scheme  ...  Acknowledgments: We thank Benjamin Curtis and Rachel Player for their comments on the preliminary version of this paper [36] . Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/info12080297 fatcat:xtlstbgrwbertcmgzjqevousam

Glyph: Fast and Accurately Training Deep Neural Networks on Encrypted Data [article]

Qian Lou and Bo Feng and Geoffrey C. Fox and Lei Jiang
2020 arXiv   pre-print
In this paper, we propose, Glyph, a FHE-based scheme to fast and accurately train DNNs on encrypted data by switching between TFHE (Fast Fully Homomorphic Encryption over the Torus) and BGV cryptosystems  ...  To train a DNN on encrypted data in a completely non-interactive way, a recent work proposes a fully homomorphic encryption (FHE)-based technique implementing all activations in the neural network by Brakerski-Gentry-Vaikuntanathan  ...  Acknowledges The authors would like to thank the anonymous reviewers for their valuable comments and helpful suggestions.  ... 
arXiv:1911.07101v3 fatcat:ynxlpeuu7reiplsstlnbteppjq

SHE: A Fast and Accurate Deep Neural Network for Encrypted Data [article]

Qian Lou, Lei Jiang
2019 arXiv   pre-print
We use the binary-operation-friendly Leveled Fast Homomorphic Encryption over Torus (LTFHE) encryption scheme to implement ReLU activations and max poolings.  ...  Homomorphic Encryption (HE) is one of the most promising security solutions to emerging Machine Learning as a Service (MLaaS).  ...  TFHE [10] is a HE cryptosystem that expresses ciphertexts over the torus modulo 1. It supports both fully and leveled HE schemes.  ... 
arXiv:1906.00148v2 fatcat:xwvacljvtbbubjig7y4gz35qbi

Efficient Privacy-Preserving Fingerprint-Based Authentication System Using Fully Homomorphic Encryption

Taeyun Kim, Yongwoo Oh, Hyoungshick Kim
2020 Security and Communication Networks  
We implement a fully working fingerprint authentication system with a fingerprint database (containing 4,000 samples) using the Fast Fully Homomorphic Encryption over the Torus (TFHE) library.  ...  In this paper, we present an efficient privacy-preserving fingerprint authentication system using a fully homomorphic encryption scheme in which fingerprint data are always stored and processed in an encrypted  ...  To show the feasibility of the proposed system, we implement a fully working fingerprint authentication system with a fingerprint database using the Fast Fully Homomorphic Encryption over the Torus (TFHE  ... 
doi:10.1155/2020/4195852 fatcat:7a54ead3rzezvad5s4uw76dd3e

Oblivious Online Monitoring for Safety LTL Specification via Fully Homomorphic Encryption [article]

Ryotaro Banno, Kotaro Matsuoka, Naoki Matsumoto, Song Bian, Masaki Waga, Kohei Suenaga
2022 arXiv   pre-print
Based on fully homomorphic encryption (FHE), we propose two online algorithms (Reverse and Block) to run a DFA obliviously. We prove the correctness and security of our entire protocol.  ...  Our case study shows that our algorithms are fast enough to monitor blood glucose levels online, demonstrating our protocol's practical relevance.  ...  Torus Fully Homomorphic Encryption Homomorphic encryption (HE) is a form of encryption that enables us to apply operations to encrypted values without decrypting them.  ... 
arXiv:2206.03582v1 fatcat:kv7hn3gfsvcl7ffy7bgjzob6mm

CPU and GPU Accelerated Fully Homomorphic Encryption [article]

Toufique Morshed, Md Momin Al Aziz, Noman Mohammed
2020 arXiv   pre-print
In particular, we choose Torus Fully Homomorphic Encryption (TFHE) as it offers exact results for an infinite number of boolean gate (e.g., AND, XOR) evaluations.  ...  Fully Homomorphic Encryption (FHE) is one of the most promising technologies for privacy protection as it allows an arbitrary number of function computations over encrypted data.  ...  Furthermore, we explored the CPU-level parallelism for improving the execution time of the underlying FHE computations.  ... 
arXiv:2005.01945v1 fatcat:mfiqkdulb5aqzm7cfo7vlsezgm

CHIMERA: Combining Ring-LWE-based Fully Homomorphic Encryption Schemes

Christina Boura, Nicolas Gama, Mariya Georgieva, Dimitar Jetchev
2020 Journal of Mathematical Cryptology  
First and foremost, it becomes an integral tool for the recent standardization initiatives of homomorphic schemes and common APIs.  ...  AbstractThis paper proposes a practical hybrid solution for combining and switching between three popular Ring-LWE-based FHE schemes: TFHE, B/FV and HEAAN.  ...  First, the scheme TLWE encrypts messages over the entire torus T and produces ciphertexts in T N+1 .  ... 
doi:10.1515/jmc-2019-0026 fatcat:4w5cmb4o2zgsrm6dti457ft2jq

MOSFHET: Optimized Software for FHE over the Torus [article]

Antonio Guimarães, Edson Borin, Diego F. Aranha
2022 IACR Cryptology ePrint Archive  
Homomorphic encryption is one of the most secure solutions for processing sensitive information in untrusted environments, and there have been many recent advances towards its efficient implementation  ...  The TFHE scheme [Chillotti et al., 2016] is the current state-of-the-art for the evaluation of arbitrary functions, and, in this work, we focus on improving its performance.  ...  FULLY HOMOMORPHIC ENCRYPTION OVER THE TORUS (TFHE) TFHE [12] [13] [14] is a fully homomorphic encryption scheme based on the Learning With Errors (LWE) problem [34] and its ring variant [7] .  ... 
dblp:journals/iacr/GuimaraesBA22 fatcat:2jkezvczajfctlutb74fnnwv3y

Efficient and Accurate homomorphic comparisons [article]

Olive Chakraborty, Martin Zuber
2022 IACR Cryptology ePrint Archive  
We design and implement a new efficient and accurate Fully homomorphic argmin/min or argmax/max comparison operator, which finds its application in numerous real-world use cases as a classifier.  ...  Our algorithm is the fastest on the market for non-parallel comparisons with a high degree of accuracy and precision.  ...  Noise propagation through homomorphic computations As mentioned before, any TFHE encryption (whatever the encryption type) introduces an error in the ciphertext.  ... 
dblp:journals/iacr/ChakrabortyZ22 fatcat:jiswfpbmzfcvdpg6nr45b4jh6u

Bootstrapping in FHEW-like Cryptosystems [article]

Daniele Micciancio, Yuriy Polyakov
2020 IACR Cryptology ePrint Archive  
FHEW and TFHE are fully homomorphic encryption (FHE) cryptosystems that can evaluate arbitrary Boolean circuits on encrypted data by bootstrapping after each gate evaluation.  ...  The TFHE cryptosystem used somewhat stronger assumptions, such as (Ring, circular secure) LWE over the torus with binary secret distribution, and applied several other optimizations to reduce the bootstrapping  ...  Finally, [8, 9] proposed TFHE, a homomorphic encryption cryptosystem "over the torus", which replaces integer arithmetic modulo q with real arithmetic over the unit interval [0, 1), and introduced several  ... 
dblp:journals/iacr/MicciancioP20 fatcat:sokm7hq5k5du7dpvx2oyvmo3uq

Performance of Adder Architectures on Encrypted Integers

Paulin Boale B., Lecturer & Ph.D, Department of Mathematics and Computers Sciences. University of Kinshasa. Congo - Kinshasa., Simon Ntumba B., Eugene Mbuyi M, Professor and head Department of Mathematic and Computers Sciences University of Kinshasa. Congo - Kinshasa., Professor, Department of Mathematic and Computers Sciences University of Kinshasa. Congo - Kinshasa.
2021 International Journal of Engineering and Advanced Technology  
The fully Homomorphic encryption scheme is corner stone of privacy in an increasingly connected world. It allows to perform all kinds of computations on encrypted data.  ...  In this paper, a brief description is made on the homomorphic encryption scheme TFHE of Illaria Chillota and the others.  ...  The TFHE library. TFHE is an open source library for fully homomorphic encryption distributed under the terms of the Apache 2.0 license.  ... 
doi:10.35940/ijeat.f3083.0810621 fatcat:nrinsrgktzecbhnesv746qt25i
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