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Establishing reliable and verifiable fingerprinting mechanisms is fundamental to controlling the unauthorized redistribution of large language models (LLMs). However, existing approaches face two major challenges: (a) ensuring…

Computation and Language · Computer Science 2026-01-22 Yue Li , Xin Yi , Dongsheng Shi , Yongyi Cui , Gerard de Melo , Linlin Wang

Large Language Models (LLMs) are rapidly becoming ubiquitous both as stand-alone tools and as components of current and future software systems. To enable usage of LLMs in the high-stake or safety-critical systems of 2030, they need to…

Software Engineering · Computer Science 2024-06-13 Sinclair Hudson , Sophia Jit , Boyue Caroline Hu , Marsha Chechik

Protecting the intellectual property of large language models (LLMs) is a critical challenge due to the proliferation of unauthorized derivative models. We introduce a novel fingerprinting framework that leverages the behavioral patterns…

Cryptography and Security · Computer Science 2026-02-11 Zhenyu Xu , Victor S. Sheng

Protecting the intellectual property of open-weight large language models (LLMs) requires verifying whether a suspect model is derived from a victim model despite common laundering operations such as fine-tuning (including PPO/DPO),…

Cryptography and Security · Computer Science 2026-04-08 Haobo Zhang , Zhenhua Xu , Junxian Li , Shangfeng Sheng , Dezhang Kong , Meng Han

Protecting the intellectual property of open-source Large Language Models (LLMs) is very important, because training LLMs costs extensive computational resources and data. Therefore, model owners and third parties need to identify whether a…

Computation and Language · Computer Science 2024-10-21 Jie Zhang , Dongrui Liu , Chen Qian , Linfeng Zhang , Yong Liu , Yu Qiao , Jing Shao

Growing concerns over the theft and misuse of Large Language Models (LLMs) have heightened the need for effective fingerprinting, which links a model to its original version to detect misuse. In this paper, we define five key properties for…

Cryptography and Security · Computer Science 2025-06-13 Mark Russinovich , Ahmed Salem

Training large language models (LLMs) is resource-intensive and expensive, making protecting intellectual property (IP) for LLMs crucial. Recently, embedding fingerprints into LLMs has emerged as a prevalent method for establishing model…

Cryptography and Security · Computer Science 2025-08-13 Jiaxuan Wu , Yinghan Zhou , Wanli Peng , Yiming Xue , Juan Wen , Ping Zhong

Despite providing superior performance, open-source large language models (LLMs) are vulnerable to abusive usage. To address this issue, recent works propose LLM fingerprinting methods to identify the specific source LLMs behind suspect…

Cryptography and Security · Computer Science 2025-05-23 Zhenzhen Ren , GuoBiao Li , Sheng Li , Zhenxing Qian , Xinpeng Zhang

Fingerprinting Large Language Models (LLMs)is essential for provenance verification and model attribution. Existing fingerprinting methods are primarily evaluated after fine-tuning, where models have already acquired stable signatures from…

Cryptography and Security · Computer Science 2026-04-15 Yao Tong , Haonan Wang , Siquan Li , Kenji Kawaguchi , Tianyang Hu

Large Language Models (LLMs) are increasingly integrated into diverse industries, posing substantial security risks due to unauthorized replication and misuse. To mitigate these concerns, robust identification mechanisms are widely…

Cryptography and Security · Computer Science 2024-07-25 Xuhong Wang , Haoyu Jiang , Yi Yu , Jingru Yu , Yilun Lin , Ping Yi , Yingchun Wang , Yu Qiao , Li Li , Fei-Yue Wang

Large language models (LLMs) are sophisticated artificial intelligence systems that enable machines to generate human-like text with remarkable precision. While LLMs offer significant technological progress, their development using vast…

Cryptography and Security · Computer Science 2025-06-23 Yashothara Shanmugarasa , Ming Ding , M. A. P Chamikara , Thierry Rakotoarivelo

The rapid emergence of Large Language Models (LLMs) has precipitated a profound paradigm shift in Artificial Intelligence, delivering monumental engineering successes that increasingly impact modern society. However, a critical paradox…

Computation and Language · Computer Science 2026-03-13 Zeyu Gan , Ruifeng Ren , Wei Yao , Xiaolin Hu , Gengze Xu , Chen Qian , Huayi Tang , Zixuan Gong , Xinhao Yao , Pengwei Tang , Zhenxing Dou , Yong Liu

Large Language Models (LLMs) are advancing at a remarkable pace, with myriad applications under development. Unlike most earlier machine learning models, they are no longer built for one specific application but are designed to excel in a…

Computation and Language · Computer Science 2023-10-31 Valentin Hartmann , Anshuman Suri , Vincent Bindschaedler , David Evans , Shruti Tople , Robert West

Large language models (LLMs) represent a major advance in artificial intelligence (AI) research. However, the widespread use of LLMs is also coupled with significant ethical and social challenges. Previous research has pointed towards…

Computation and Language · Computer Science 2023-06-28 Jakob Mökander , Jonas Schuett , Hannah Rose Kirk , Luciano Floridi

The protection of Intellectual Property (IP) for Large Language Models (LLMs) has become a critical concern as model theft and unauthorized commercialization escalate. While adversarial fingerprinting offers a promising black-box solution…

Cryptography and Security · Computer Science 2026-05-28 Zhebo Wang , Zhenhua Xu , Maike Li , Wenpeng Xing , Chunqiang Hu , Chen Zhi , Meng Han

The Large Language Model (LLM) watermark is a newly emerging technique that shows promise in addressing concerns surrounding LLM copyright, monitoring AI-generated text, and preventing its misuse. The LLM watermark scheme commonly includes…

Cryptography and Security · Computer Science 2024-05-31 Zhaoxi Zhang , Xiaomei Zhang , Yanjun Zhang , Leo Yu Zhang , Chao Chen , Shengshan Hu , Asif Gill , Shirui Pan

With the rapid advancement and extensive application of artificial intelligence technology, large language models (LLMs) are extensively used to enhance production, creativity, learning, and work efficiency across various domains. However,…

Cryptography and Security · Computer Science 2024-09-04 Yuqing Liang , Jiancheng Xiao , Wensheng Gan , Philip S. Yu

Large Language Models (LLMs) applied to code-related applications have emerged as a prominent field, attracting significant interest from both academia and industry. However, as new and improved LLMs are developed, existing evaluation…

Software Engineering · Computer Science 2024-06-07 Naman Jain , King Han , Alex Gu , Wen-Ding Li , Fanjia Yan , Tianjun Zhang , Sida Wang , Armando Solar-Lezama , Koushik Sen , Ion Stoica

Due to the black-box nature of large language models (LLMs) and the realism of their generated content, issues such as hallucinations, bias, unfairness, and copyright infringement have become significant. In this context, sourcing…

Computation and Language · Computer Science 2026-01-01 Liang Pang , Jia Gu , Sunhao Dai , Zihao Wei , Zenghao Duan , Kangxi Wu , Zhiyi Yin , Jun Xu , Huawei Shen , Xueqi Cheng

Given the high cost of large language model (LLM) training from scratch, safeguarding LLM intellectual property (IP) has become increasingly crucial. As the standard paradigm for IP ownership verification, LLM fingerprinting thus plays a…

Cryptography and Security · Computer Science 2026-03-20 Zixun Xiong , Gaoyi Wu , Qingyang Yu , Mingyu Derek Ma , Lingfeng Yao , Miao Pan , Xiaojiang Du , Hao Wang