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The development of large language models (LLMs) has raised concerns about potential misuse. One practical solution is to embed a watermark in the text, allowing ownership verification through watermark extraction. Existing methods primarily…

Cryptography and Security · Computer Science 2025-03-04 Yuhang Cai , Yaofei Wang , Donghui Hu , Chen Gu

AI-Generated Content (AIGC) is rapidly expanding, with services using advanced generative models to create realistic images and fluent text. Regulating such content is crucial to prevent policy violations, such as unauthorized…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Guanlin Li , Yifei Chen , Jie Zhang , Shangwei Guo , Han Qiu , Guoyin Wang , Jiwei Li , Tianwei Zhang

We present the first in depth study on the robustness of existing watermarking techniques applied to code generated by large language models (LLMs). As LLMs increasingly contribute to software development, watermarking has emerged as a…

Cryptography and Security · Computer Science 2025-08-21 Tarun Suresh , Shubham Ugare , Gagandeep Singh , Sasa Misailovic

The widely adopted and powerful generative large language models (LLMs) have raised concerns about intellectual property rights violations and the spread of machine-generated misinformation. Watermarking serves as a promising approch to…

Cryptography and Security · Computer Science 2024-10-28 Ruisi Zhang , Farinaz Koushanfar

The task of discerning between generated and natural texts is increasingly challenging. In this context, watermarking emerges as a promising technique for ascribing generated text to a specific model. It alters the sampling generation…

Computation and Language · Computer Science 2023-11-09 Pierre Fernandez , Antoine Chaffin , Karim Tit , Vivien Chappelier , Teddy Furon

We propose a methodology for planting watermarks in text from an autoregressive language model that are robust to perturbations without changing the distribution over text up to a certain maximum generation budget. We generate watermarked…

Machine Learning · Computer Science 2024-06-07 Rohith Kuditipudi , John Thickstun , Tatsunori Hashimoto , Percy Liang

Watermarking generative models consists of planting a statistical signal (watermark) in a model's output so that it can be later verified that the output was generated by the given model. A strong watermarking scheme satisfies the property…

Machine Learning · Computer Science 2025-05-29 Hanlin Zhang , Benjamin L. Edelman , Danilo Francati , Daniele Venturi , Giuseppe Ateniese , Boaz Barak

Watermarking of language model outputs enables statistical detection of model-generated text, which can mitigate harms and misuses of language models. Existing watermarking strategies operate by altering the decoder of an existing language…

Machine Learning · Computer Science 2024-05-03 Chenchen Gu , Xiang Lisa Li , Percy Liang , Tatsunori Hashimoto

Watermarking large language models (LLMs) is vital for preventing their misuse, including the fabrication of fake news, plagiarism, and spam. It is especially important to watermark LLM-generated code, as it often contains intellectual…

Cryptography and Security · Computer Science 2025-12-18 Li Lin , Siyuan Xin , Yang Cao , Xiaochun Cao

Advances in generative models have made it possible for AI-generated text, code, and images to mirror human-generated content in many applications. Watermarking, a technique that aims to embed information in the output of a model to verify…

Cryptography and Security · Computer Science 2024-11-14 Qi Pang , Shengyuan Hu , Wenting Zheng , Virginia Smith

Large Language Models (LLMs) have demonstrated exceptional capabilities in natural language understanding and generation. Based on these LLMs, businesses have started to provide Embeddings-as-a-Service (EaaS), offering feature extraction…

Computation and Language · Computer Science 2025-12-04 Anudeex Shetty

The proliferation of autoregressive (AR) image generators demands reliable detection and attribution of their outputs to mitigate misinformation, and to filter synthetic images from training data to prevent model collapse. To address this…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Andreas Müller , Denis Lukovnikov , Shingo Kodama , Minh Pham , Anubhav Jain , Jonathan Petit , Niv Cohen , Asja Fischer

The rapid advancement of generative artificial intelligence (GenAI) has revolutionized content creation across text, visual, and audio domains, simultaneously introducing significant risks such as misinformation, identity fraud, and content…

Cryptography and Security · Computer Science 2025-04-08 Lele Cao

AI watermarking embeds invisible signals within images to provide provenance information and identify content as AI-generated. In this paper, we introduce MarkSweep, a novel watermark removal attack that effectively erases the embedded…

Cryptography and Security · Computer Science 2026-02-18 Jie Cao , Zelin Zhang , Qi Li , Jianbing Ni

Watermarking is an effective way to trace model-generated content. Current watermark methods cannot resist forgery attacks, such as a deceptive claim that the model-generated content is a response to a fabricated prompt. None of them can be…

Cryptography and Security · Computer Science 2024-12-30 Minhao Bai

The rapid advancement of generative AI has underscored the critical need for identifying image ownership and protecting copyrights. This makes post-processing image watermarking an essential tool -- it involves embedding a specific…

Cryptography and Security · Computer Science 2026-05-12 Xinyu Zhang , Ziping Dong , Qingyu Liu , Yuan Hong , Zhongjie Ba , Kui Ren

Motivated by the problem of detecting AI-generated text, we consider the problem of watermarking the output of language models with provable guarantees. We aim for watermarks which satisfy: (a) undetectability, a cryptographic notion…

Cryptography and Security · Computer Science 2025-05-29 Noah Golowich , Ankur Moitra

Text watermarking algorithms for large language models (LLMs) can effectively identify machine-generated texts by embedding and detecting hidden features in the text. Although the current text watermarking algorithms perform well in most…

Computation and Language · Computer Science 2024-06-11 Yijian Lu , Aiwei Liu , Dianzhi Yu , Jingjing Li , Irwin King

The rapid advancement of large language models (LLMs) has raised concerns regarding their potential misuse, particularly in generating fake news and misinformation. To address these risks, watermarking techniques for autoregressive language…

Cryptography and Security · Computer Science 2025-06-24 Koichi Nagatsuka , Terufumi Morishita , Yasuhiro Sogawa

Watermarking is a promising defense against the misuse of large language models (LLMs), yet it remains vulnerable to scrubbing and spoofing attacks. This vulnerability stems from an inherent trade-off governed by watermark window size:…

Cryptography and Security · Computer Science 2025-12-09 Huanming Shen , Baizhou Huang , Xiaojun Wan