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Reinforcement Learning (RL) has achieved tremendous success in many complex decision-making tasks. However, safety concerns are raised during deploying RL in real-world applications, leading to a growing demand for safe RL algorithms, such…

Artificial Intelligence · Computer Science 2024-05-28 Shangding Gu , Long Yang , Yali Du , Guang Chen , Florian Walter , Jun Wang , Alois Knoll

In this paper, two image encryption schemes are proposed for grayscale and color images. The two encryption schemes are based on dividing each image into blocks of different sizes. In the first scheme, the two dimension ($2$D) input image…

Cryptography and Security · Computer Science 2018-02-22 Omar Reyad , M. A. Mofaddel , W. M. Abd-Elhafiez , Mohamed Fathy

Recently, a few chosen-ciphertext secure (CCA2-secure) variants of the McEliece public-key encryption (PKE) scheme in the standard model were introduced. All the proposed schemes are based on encryption repetition paradigm and use general…

Cryptography and Security · Computer Science 2013-09-10 Roohallah Rastaghi

Due to its light and weather-independent sensing, millimeter-wave (MMW) radar is essential in smart environments. Intelligent vehicle systems and industry-grade MMW radars have integrated such capabilities. Industry-grade MMW radars are…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Maloy Kumar Devnath , Avijoy Chakma , Mohammad Saeid Anwar , Emon Dey , Zahid Hasan , Marc Conn , Biplab Pal , Nirmalya Roy

Fully homomorphic encryption has allowed devices to outsource computation to third parties while preserving the secrecy of the data being computed on. Many images contain sensitive information and are commonly sent to cloud services to…

Cryptography and Security · Computer Science 2018-10-09 William Fu , Raymond Lin , Daniel Inge

Integral imaging-based cryptographic algorithms provides a new way to design secure and robust image encryption schemes. In this paper, we introduce a performance-enhanced image encryption schemes based on depth-conversion integral imaging…

Cryptography and Security · Computer Science 2015-01-20 Xiaowei Li , Chengqing Li , Seok-Tae Kim , In-Kwon Lee

Machine learning and Large language models (LLMs) for vulnerability detection has received significant attention in recent years. Unfortunately, state-of-the-art techniques show that LLMs are unsuccessful in even distinguishing the…

Cryptography and Security · Computer Science 2025-08-05 Mohammed Sayagh , Mohammad Ghafari

The development of deep neural networks is witnessing fast growth in network size, which requires novel hardware computing platforms with large bandwidth and low energy consumption. Optical computing has been a potential candidate for…

This work examines the use of two-way training to efficiently discriminate the channel estimation performances at a legitimate receiver (LR) and an unauthorized receiver (UR) in a multiple-input multiple-output (MIMO) wireless system. This…

Information Theory · Computer Science 2015-06-12 Chao-Wei Huang , Tsung-Hui Chang , Xiangyun Zhou , Y. -W. Peter Hong

Model-based learned iterative reconstruction methods have recently been shown to outperform classical reconstruction algorithms. Applicability of these methods to large scale inverse problems is however limited by the available memory for…

Image and Video Processing · Electrical Eng. & Systems 2020-04-21 Andreas Hauptmann , Jonas Adler , Simon Arridge , Ozan Öktem

LWE-based cryptosystems are an attractive alternative to traditional ones in the post-quantum era. To minimize the storage cost of part of its public key - a $256 \times 640$ integer matrix, $\textbf{T}$ - a binary version of $\textbf{T}$…

Cryptography and Security · Computer Science 2019-04-10 Tikaram Sanyashi , M. Bhargav Sri Venkatesh , Kapil Agarwal , Manish Verma , Bernard Menezes

To keep massive MIMO systems cost-efficient, power amplifiers with rather small output dynamic ranges are employed. They may distort the transmit signal and degrade the performance. This paper proposes a distortion aware precoding scheme…

Signal Processing · Electrical Eng. & Systems 2019-05-15 Ali Bereyhi , Saba Asaad , Ralf R. Müller , Symeon Chatzinotas

The rational covariance extension problem (RCEP) is an important problem in systems and control occurring in such diverse fields as control, estimation, system identification, and signal and image processing, leading to many fundamental…

Optimization and Control · Mathematics 2018-02-07 Axel Ringh , Johan Karlsson , Anders Lindquist

With the popularization of digital information technology, the reversible data hiding in encrypted images (RDHEI) has gradually become the research hotspot of privacy protection in cloud storage. As a technology which can embed additional…

Multimedia · Computer Science 2021-10-11 Wenjing Ma , Youqing Wu , Zhaoxia Yin

This work proposes an improved reversible data hiding scheme in encrypted images using parametric binary tree labeling(IPBTL-RDHEI), which takes advantage of the spatial correlation in the entire original image but not in small image blocks…

Multimedia · Computer Science 2021-10-19 Youqing Wu , Youzhi Xiang , Yutang Guo , Jin Tang , Zhaoxia Yin

In a world heavily loaded by information, there is a great need for keeping specific information secure from adversaries. The rapid growth in the research field of lightweight cryptography can be seen from the list of the number of…

Cryptography and Security · Computer Science 2018-06-27 Sukanya Saha , Krishnendu Rarhi , Abhishek Bhattacharya

Considering the prospects of public key embedding (PKE) mechanism in active forensics on the integrity or identity of ciphertext for distributed deep learning security, two reversible data hiding in encrypted domain (RDH-ED) algorithms with…

Cryptography and Security · Computer Science 2022-09-01 Yan Ke , Minqing Zhang , Xinpeng Zhang , Yiliang Han , Jia Liu

Secure multiparty computation enables the joint evaluation of multivariate functions across distributed users while ensuring the privacy of their local inputs. This field has become increasingly urgent due to the exploding demand for…

Quantum Physics · Physics 2026-01-07 Kfir Sulimany , Sri Krishna Vadlamani , Ryan Hamerly , Prahlad Iyengar , Dirk Englund

With the development of cloud storage and privacy protection, reversible data hiding in encrypted images (RDHEI) has attracted increasing attention as a technology that can embed additional data in the encryption domain. In general, an…

Multimedia · Computer Science 2021-10-19 Youzhi Xiang , Zhaoxia Yin , Xinpeng Zhang

Our main result is a reduction from worst-case lattice problems such as GapSVP and SIVP to a certain learning problem. This learning problem is a natural extension of the `learning from parity with error' problem to higher moduli. It can…

Cryptography and Security · Computer Science 2024-01-09 Oded Regev
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