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RAMPARTS: A Programmer-Friendly System for Building Homomorphic Encryption Applications
Homomorphic encryption Automatic arithmetic circuit generation Lattice-based cryptography
2019/9/3
Homomorphic Encryption (HE) is an emerging technnology that enables computing on data while the data is encrypted. A major challenge with homomorphic encryption is that it takes extensive expert knowl...
Towards real-time hidden speaker recognition by means of fully homomorphic encryption
Fully Homomorphic Encryption Neural Networks LWE
2019/8/30
Securing Neural Network (NN) computations through the use of Fully Homomorphic Encryption (FHE) is the subject of a growing interest in both communities. Among different possible approaches to that to...
Faster homomorphic encryption is not enough: improved heuristic for multiplicative depth minimization of Boolean circuits
somewhat homomorphic encryption multiplicative depth Boolean functions
2019/8/27
In somewhat homomorphic encryption schemes (e.g. B/FV, BGV) the size of ciphertexts and the execution performance of homomorphic operations depends heavily on the multiplicative depth. The multiplicat...
Homomorphic Encryption is a breakthrough technology which can enable private cloud storage and computation solutions, and many applications have been described in the literature in the last few years....
Blindfolded Evaluation of Random Forests with Multi-Key Homomorphic Encryption
Applied Cryptography Decision Tree Homomorphic Encryption
2019/7/17
Decision tree and its generalization of random forests are a simple yet powerful machine learning model for many classification and regression problems. Recent works propose how to privately evaluate ...
Leveraging Linear Decryption: Rate-1 Fully-Homomorphic Encryption and Time-Lock Puzzles
Fully-Homomorphic Encryption High-Rate Time-Lock Puzzles
2019/6/19
We show how to combine a fully-homomorphic encryption scheme with linear decryption and a linearly-homomorphic encryption schemes to obtain constructions with new properties. Specifically, we present ...
Better Bootstrapping for Approximate Homomorphic Encryption
Homomorphic Encryption Bootstrapping Polynomial Approximation
2019/6/12
After Cheon et al. (Asiacrypt' 17) proposed approximate homomorphic encryption for operations between encrypted real (or complex) numbers, this scheme is widely used in various fields with the needs o...
On the Plausibility of Fully Homomorphic Encryption for RAMs
Fully Homomorphic Encryption Oblivious Ram Secret-Key Private Information Retrieval
2019/6/4
We initiate the study of fully homomorphic encryption for RAMs (RAM-FHE). This is a public-key encryption scheme where, given an encryption of a large database DD, anybody can efficiently compute an e...
Cryptanalysis of Ring Homomorphic Encryption Schemes
homomorphic encryption schemes quantum computing key-recovery attack
2019/6/3
We analyze the structure of finite commutative rings with respect to its idempotent and nilpotent elements. Based on this analysis we provide a quantum-classical IND-CCA^1 attack for ring homomorphic ...
Formal Notions of Security for Verifiable Homomorphic Encryption
Verifiable homomorphic encryption Formal notions of security Non-malleability
2019/5/31
Homomorphic encryption enables computations with encrypted data, however, in its plain form, it does not guarantee that the computation has been performed honestly. For the Fully Homomorphic Encryptio...
Fully Homomorphic Encryption with k-bit Arithmetic Operations
FHE lattices learning with errors (LWE)
2019/5/21
We present a fully homomorphic encryption scheme continuing the line of works of Ducas and Micciancio (2015, [DM15]), Chillotti et al. (2016, [CGGI16a]; 2017, [CGGI17]; 2018, [CGGI18a]), and Gao (2018...
Efficient Multi-Key Homomorphic Encryption with Packed Ciphertexts with Application to Oblivious Neural Network Inference
multi-key homomorphic encryption packed ciphertext ring learning with errors
2019/5/21
Homomorphic Encryption (HE) is a cryptosystem which supports computation on encrypted data. López-Alt et al. (STOC 2012) proposed a generalized notion of HE, called Multi-Key Homomorphic Encryption (M...
Improved Filter Permutators: Combining Symmetric Encryption Design, Boolean Functions, Low Complexity Cryptography, and Homomorphic Encryption, for Private Delegation of Computations
Filter Permutator FLIP Homomorphic Encryption
2019/5/14
Motivated by the application of delegating computation, we revisit the design of filter permutators as a general approach to build stream ciphers that can be efficiently evaluated in a fully homomorph...
Improved Secure Integer Comparison via Homomorphic Encryption
secure comparison homomorphic encryption
2019/4/28
Secure integer comparison has been one of the first problems introduced in cryptography, both for its simplicity to describe and for its applications. The first formulation of the problem was to enabl...
Efficient Private Comparison Queries over Encrypted Databases using Fully Homomorphic Encryption with Finite Fields
private queries encrypted database homomorphic encryption
2019/4/3
To achieve security and privacy for data stored on the cloud, we need the ability to secure data in compute. Equality comparisons, ``x=y,x≠yx=y,x≠y'', have been widely studied with many proposals but ...