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Capsule networks (CapsNets) are an emerging trend in image processing. In contrast to a convolutional neural network, CapsNets are not vulnerable to object deformation, as the relative spatial information of the objects is preserved across…

Machine Learning · Computer Science 2024-04-09 Miguel Costa , Diogo Costa , Tiago Gomes , Sandro Pinto

Verifiable Homomorphic Encryption (VHE) is a cryptographic technique that integrates Homomorphic Encryption (HE) with Verifiable Computation (VC). It serves as a crucial technology for ensuring both privacy and integrity in outsourced…

Cryptography and Security · Computer Science 2025-10-14 Jung Hee Cheon , Daehyun Jang

The blockchain ecosystem, particularly with the rise of Web3 and Non-Fungible Tokens (NFTs), has experienced a significant increase in users and applications. However, this expansion is challenged by the need to connect early adopters with…

Cryptography and Security · Computer Science 2024-04-08 Hiroki Watanabe , Kohei Ichihara , Takumi Aita

We consider a new model for the testing of untrusted quantum devices, consisting of a single polynomial-time bounded quantum device interacting with a classical polynomial-time verifier. In this model we propose solutions to two tasks - a…

Quantum Physics · Physics 2021-05-06 Zvika Brakerski , Paul Christiano , Urmila Mahadev , Umesh Vazirani , Thomas Vidick

As quantum computing hardware continues to advance, the integration of such technology with quantum algorithms is anticipated to enable the decryption of ciphertexts produced by RSA and Elliptic Curve Cryptography (ECC) within polynomial…

Cryptography and Security · Computer Science 2026-03-05 Abel C. H. Chen

Blockchain is a decentralized network to increase trust, integrity, and transparency of transactions. With the exponential growth of transactions in the realm of Blockchain, especially in Bitcoin, Blockchain size increases as all…

Cryptography and Security · Computer Science 2024-04-30 Hamidreza Rahmati , Farhad Rahmati

Recently, text watermarking algorithms for large language models (LLMs) have been proposed to mitigate the potential harms of text generated by LLMs, including fake news and copyright issues. However, current watermark detection algorithms…

Computation and Language · Computer Science 2024-05-28 Aiwei Liu , Leyi Pan , Xuming Hu , Shu'ang Li , Lijie Wen , Irwin King , Philip S. Yu

We present here a new family of trapdoor one-way Preimage Sampleable Functions (PSF) based on codes, the Wave-PSF family. The trapdoor function is one-way under two computational assumptions: the hardness of generic decoding for high…

Cryptography and Security · Computer Science 2019-04-29 Thomas Debris-Alazard , Nicolas Sendrier , Jean-Pierre Tillich

Fully Homomorphic Encryption (FHE) enables privacy-preserving computation and has many applications. However, its practical implementation faces massive computation and memory overheads. To address this bottleneck, several…

Cryptography and Security · Computer Science 2025-02-06 Aikata Aikata , Ahmet Can Mert , Sunmin Kwon , Maxim Deryabin , Sujoy Sinha Roy

Owing to some special characteristics and features, blockchain is a very useful technique that can securely organize diverse devices in a smart city. It finds wide applications, especially in distributed environments, where entities such as…

Cryptography and Security · Computer Science 2021-04-01 Jiahui Chen , Wensheng Gan , Muchuang Hu , Chien-Ming Chen

The widespread lack of broad source code verification on blockchain explorers such as Etherscan, where despite 78,047,845 smart contracts deployed on Ethereum (as of May 26, 2025), a mere 767,520 (< 1%) are open source, presents a severe…

Cryptography and Security · Computer Science 2025-06-25 Isaac David , Liyi Zhou , Dawn Song , Arthur Gervais , Kaihua Qin

Lightweight cryptography is a novel diversion from conventional cryptography that targets internet-of-things (IoT) platform due to resource constraints. In comparison, it offers smaller cryptographic primitives such as shorter key sizes,…

Cryptography and Security · Computer Science 2021-12-24 Nilupulee A. Gunathilake , Ahmed Al-Dubai , William J. Buchanan , Owen Lo

In this work, the conventional cryptographic algorithms used in the 5G Core are replaced with post-quantum alternatives and the practical impact of this transition is evaluated. Using a simulation environment, we model the registration and…

We present Lattice (L, ticker: LAT), a peer-to-peer electronic cash system designed as a post-quantum settlement layer for the era of quantum computing. Lattice combines three independent defense vectors: hardware resilience through RandomX…

Quantum Physics · Physics 2026-03-10 David Alejandro Trejo Pizzo

We theoretically propose and experimentally demonstrate the use of a configurable four-qubit photonic system to generate a publicly verifiable quantum random numbers, to perform entanglement verification, and to generate secure public and…

Quantum Physics · Physics 2024-09-18 Mayalakshmi Kolangatt , Anirudh Verma , Sujai Matta , Kanad Sengupta , C. M. Chandrashekar

Signcryption is a cryptographic primitive which performs encryption and signature in a single logical step. In conventional signcryption only receiver of the signcrypted text can verify the authenticity of the origin i.e. signature of the…

Cryptography and Security · Computer Science 2011-07-12 Prashant Kushwah , Sunder Lal

In August 2015 the cryptographic world was shaken by a sudden and surprising announcement by the US National Security Agency NSA concerning plans to transition to post-quantum algorithms. Since this announcement post-quantum cryptography…

Cryptography and Security · Computer Science 2017-12-21 Jean-Charles Faug`ere , Kelsey Horan , Delaram Kahrobaei , Marc Kaplan , Elham Kashefi , Ludovic Perret

Motivated by the rise of quantum computers, existing public-key cryptosystems are expected to be replaced by post-quantum schemes in the next decade in billions of devices. To facilitate the transition, NIST is running a standardization…

Cryptography and Security · Computer Science 2022-03-02 Saad Islam , Koksal Mus , Richa Singh , Patrick Schaumont , Berk Sunar

The Advanced Encryption Standard (AES) algorithm is a symmetric block cipher which operates on a sequence of blocks each consists of 128, 192 or 256 bits. Moreover, the cipher key for the AES algorithm is a sequence of 128, 192 or 256 bits.…

Cryptography and Security · Computer Science 2015-01-08 Ghada F. Elkabbany , Heba K. Aslan , Mohamed N. Rasslan

Digital signal processing technology has paved the way for the realization of high-speed continuous-variable quantum key distribution systems. However, existing security proofs are limited to static digital signal processing algorithms,…

Quantum Physics · Physics 2026-02-06 Lu Fan , Zhengyu Li , Sheng Liu , Xuesong Xu , Tianyu Zhang , Jiale Mi , Dong Wang , Dechao Zhang , Han Li , Song Yu , Yichen Zhang