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cs.IT2026
Optimal Multi-bit Generative Watermarking Schemes Under Worst-Case False-Alarm Constraints
Yu-Shin Huang, Chao Tian, Krishna Narayanan
This paper considers the problem of multi-bit generative watermarking for large language models under a worst-case false-alarm constraint. Prior work established a lower bound on t…
cs.IT2025
Relatively-Secure LLM-Based Steganography via Constrained Markov Decision Processes
Yu-Shin Huang, Chao Tian, Krishna Narayanan +1
Linguistic steganography aims to conceal information within natural language text without being detected. An effective steganography approach should encode the secret message into…
cs.IT2024
OD-Stega: LLM-Based Relatively Secure Steganography via Optimized Distributions
Yu-Shin Huang, Peter Just, Hanyun Yin +3
We consider coverless steganography where a Large Language Model (LLM) is used to generate stego-texts in combination with arithmetic coding. An efficient method should embed secre…