Published June 5, 2026 | Version v2

PromptEcho

Description

This artifact contains the implementation and datasets for PromptEcho, a passive eavesdropping attack that infers semantically meaningful portions of natural-language responses from encrypted network traffic via a merged token-length side channel. The artifact includes two-stage fine-tuning scripts, an inference pipeline, an evaluation framework, training/test datasets of token-length sequences, and anonymized exemplar network traces from ChatGPT and DeepSeek API sessions. Full details are provided in the README.

Files

PromptEcho-artifact.zip

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