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Blockchain technology has been gaining great interest from a variety of sectors, including healthcare, supply chain and cryptocurrencies. However, Blockchain suffers from its limited ability to scale (i.e. low throughput and high latency).…

Cryptography and Security · Computer Science 2021-08-13 Abdelatif Hafid , Abdelhakim Senhaji Hafid , Adil Senhaji

In LFSR-based stream ciphers, the knowledge of the feedback equation of the LFSR plays a critical role in most attacks. In word-based stream ciphers such as those in the SNOW series, even if the feedback configuration is hidden, knowing the…

Cryptography and Security · Computer Science 2023-07-06 Subrata Nandi , Srinivasan Krishnaswamy , Pinaki Mitra

We follow two main objectives in this article. On the one hand, we introduce a security model called LORBACPA$^+$ for self-synchronized stream ciphers which is stronger than the blockwise LOR-IND-CPA, where we show that standard…

Cryptography and Security · Computer Science 2017-09-26 Amir Daneshgar , Fahimeh Mohebbipoor

In this paper, a new approach to Spread Spectrum (SS) watermarking technique is introduced. This problem is particularly interesting in the field of modern multimedia applications like internet when copyright protection of digital image is…

Cryptography and Security · Computer Science 2012-07-12 T. S. Das , V. H. Mankar , S. K. Sarkar

We present StreamVC, a streaming voice conversion solution that preserves the content and prosody of any source speech while matching the voice timbre from any target speech. Unlike previous approaches, StreamVC produces the resulting…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-09 Yang Yang , Yury Kartynnik , Yunpeng Li , Jiuqiang Tang , Xing Li , George Sung , Matthias Grundmann

We propose a capability-based access control technique for sharing Web resources, based on Verifiable Credentials (VCs) and OAuth 2.0. VCs are a secure means for expressing claims about a subject. Although VCs are ideal for encoding…

Cryptography and Security · Computer Science 2021-04-30 Nikos Fotiou , Vasilios A. Siris , George C. Polyzos

Digital watermarking has shown its effectiveness in protecting multimedia content. However, existing watermarking is predominantly tailored for specific media types, rendering them less effective for the protection of content displayed on…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Xiujian Liang , Gaozhi Liu , Yichao Si , Xiaoxiao Hu , Zhenxing Qian

Existing wireless video transmission schemes directly conduct video coding in pixel level, while neglecting the inner semantics contained in videos. In this paper, we propose a wireless video semantic communication framework, abbreviated as…

Multimedia · Computer Science 2026-01-21 Bingyan Xie , Yongpeng Wu , Yuxuan Shi , Biqian Feng , Wenjun Zhang , Jihong Park , Tony Q. S. Quek

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

We study the encryption and decryption processes of color images using the synchronization of polarization dynamics in a free-running vertical-cavity surface-emitting laser (VCSEL). Here, we consider a bidirectional master-slave…

Optics · Physics 2018-10-16 A. Roy , A. P. Misra , S. Banerjee

Multimedia security has been the aim point of considerable research activity because of its wide application area. The major technology to achieve copyright protection, content authentication, access control and multimedia security is…

Multimedia · Computer Science 2014-04-14 Noui Oussama , Noui Lemnouar

We consider the problem of secure distributed matrix multiplication (SDMM). Coded computation has been shown to be an effective solution in distributed matrix multiplication, both providing privacy against workers and boosting the…

Information Theory · Computer Science 2022-02-08 Burak Hasircioglu , Jesus Gomez-Vilardebo , Deniz Gunduz

This paper proposes StreamCodec, a streamable neural audio codec designed for real-time communication. StreamCodec adopts a fully causal, symmetric encoder-decoder structure and operates in the modified discrete cosine transform (MDCT)…

Sound · Computer Science 2025-04-10 Xiao-Hang Jiang , Yang Ai , Rui-Chen Zheng , Zhen-Hua Ling

In evolving access structures, the number of participants is countably infinite with no predetermined upper bound. While such structures have been realized in secret sharing, research in secret image sharing has primarily focused on visual…

Cryptography and Security · Computer Science 2025-08-25 Xiaoli Zhuo , Xuehu Yan , Lintao Liu , Wei Yan

Permutation codes are a class of structured vector quantizers with a computationally-simple encoding procedure based on sorting the scalar components. Using a codebook comprising several permutation codes as subcodes preserves the…

Information Theory · Computer Science 2015-03-13 Ha Q. Nguyen , Lav R. Varshney , Vivek K Goyal

The paper proposes a method to secure the Compressive Sensing (CS) streams. It consists in protecting part of the measurements by a secret key and inserting the code into the rest. The secret key is generated via a cryptographically secure…

Cryptography and Security · Computer Science 2025-05-30 Cristina-Elena Popa , Cristian Damian , Daniela Coltuc

The rapid advancement of generative AI has made it increasingly challenging to distinguish between deepfake audio and authentic human speech. To overcome the limitations of passive detection methods, we propose StreamMark, a novel deep…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-15 Zhentao Liu , Milos Cernak

This paper presents a symmetric stream cipher that utilizes the dynamic properties of random cubic mappings in the complex plane to generate pseudo-random key streams. The system is based on the iterations of the random cubic polynomial…

Cryptography and Security · Computer Science 2026-03-24 Pouya Mehdipour , Alexandre Miranda Alves , Gerardo Honorato , Mostafa Salarinoghabi

The expansion of the open source community and the rise of large language models have raised ethical and security concerns on the distribution of source code, such as misconduct on copyrighted code, distributions without proper licenses, or…

Cryptography and Security · Computer Science 2024-01-03 Borui Yang , Wei Li , Liyao Xiang , Bo Li

Rapid advancements in video diffusion models have enabled the creation of realistic videos, raising concerns about unauthorized use and driving the demand for techniques to protect model ownership. Existing watermarking methods, while…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 MinHyuk Jang , Youngdong Jang , JaeHyeok Lee , Feng Yang , Gyeongrok Oh , Jongheon Jeong , Sangpil Kim