Provably Secure Generative Linguistic Steganography

06/03/2021
by   Siyu Zhang, et al.
0

Generative linguistic steganography mainly utilized language models and applied steganographic sampling (stegosampling) to generate high-security steganographic text (stegotext). However, previous methods generally lead to statistical differences between the conditional probability distributions of stegotext and natural text, which brings about security risks. In this paper, to further ensure security, we present a novel provably secure generative linguistic steganographic method ADG, which recursively embeds secret information by Adaptive Dynamic Grouping of tokens according to their probability given by an off-the-shelf language model. We not only prove the security of ADG mathematically, but also conduct extensive experiments on three public corpora to further verify its imperceptibility. The experimental results reveal that the proposed method is able to generate stegotext with nearly perfect security.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
11/09/2018

Provably Secure Steganography on Generative Media

In this paper, we propose provably secure steganography on generative me...
research
04/20/2021

Frustratingly Easy Edit-based Linguistic Steganography with a Masked Language Model

With advances in neural language models, the focus of linguistic stegano...
research
03/26/2022

Autoregressive Linguistic Steganography Based on BERT and Consistency Coding

Linguistic steganography (LS) conceals the presence of communication by ...
research
09/03/2019

Neural Linguistic Steganography

Whereas traditional cryptography encrypts a secret message into an unint...
research
05/22/2023

Prompt-based methods may underestimate large language models' linguistic generalizations

Prompting is now a dominant method for evaluating the linguistic knowled...
research
03/08/2022

Semantic-Preserving Linguistic Steganography by Pivot Translation and Semantic-Aware Bins Coding

Linguistic steganography (LS) aims to embed secret information into a hi...
research
11/12/2018

Automatically Generate Steganographic Text Based on Markov Model and Huffman Coding

Steganography, as one of the three basic information security systems, h...

Please sign up or login with your details

Forgot password? Click here to reset