An LLM Framework For Cryptography Over Chat Channels

Fuente: arXiv
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Autori principali: Gligoroski, Danilo, Raikwar, Mayank, Jha, Sonu Kumar
Natura: Preprint
Pubblicazione: 2025
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author Gligoroski, Danilo
Raikwar, Mayank
Jha, Sonu Kumar
author_facet Gligoroski, Danilo
Raikwar, Mayank
Jha, Sonu Kumar
contents Recent advancements in Large Language Models (LLMs) have transformed communication, yet their role in secure messaging remains underexplored, especially in surveillance-heavy environments. At the same time, many governments all over the world are proposing legislation to detect, backdoor, or even ban encrypted communication. That emphasizes the need for alternative ways to communicate securely and covertly over open channels. We propose a novel cryptographic embedding framework that enables covert Public Key or Symmetric Key encrypted communication over public chat channels with humanlike produced texts. Some unique properties of our framework are: 1. It is LLM agnostic, i.e., it allows participants to use different local LLM models independently; 2. It is pre- or post-quantum agnostic; 3. It ensures indistinguishability from human-like chat-produced texts. Thus, it offers a viable alternative where traditional encryption is detectable and restricted.
format Preprint
id arxiv_https___arxiv_org_abs_2504_08871
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An LLM Framework For Cryptography Over Chat Channels
Gligoroski, Danilo
Raikwar, Mayank
Jha, Sonu Kumar
Cryptography and Security
Artificial Intelligence
Recent advancements in Large Language Models (LLMs) have transformed communication, yet their role in secure messaging remains underexplored, especially in surveillance-heavy environments. At the same time, many governments all over the world are proposing legislation to detect, backdoor, or even ban encrypted communication. That emphasizes the need for alternative ways to communicate securely and covertly over open channels. We propose a novel cryptographic embedding framework that enables covert Public Key or Symmetric Key encrypted communication over public chat channels with humanlike produced texts. Some unique properties of our framework are: 1. It is LLM agnostic, i.e., it allows participants to use different local LLM models independently; 2. It is pre- or post-quantum agnostic; 3. It ensures indistinguishability from human-like chat-produced texts. Thus, it offers a viable alternative where traditional encryption is detectable and restricted.
title An LLM Framework For Cryptography Over Chat Channels
topic Cryptography and Security
Artificial Intelligence
url https://arxiv.org/abs/2504.08871