SpliceLeak is the first end-to-end side-channel attack on non-prefix KV cache in RAG, using Step-Wave timing leaks to fingerprint private prompt lengths and extract tokens with up to 100% success using 63 requests per token on vLLM+LMCache.
Cryp- togen: Secure transformer generation with encrypted kv-cache reuse,
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Agent-Assisted Side-Channel Attacks on Non-Prefix KV Cache in RAG
SpliceLeak is the first end-to-end side-channel attack on non-prefix KV cache in RAG, using Step-Wave timing leaks to fingerprint private prompt lengths and extract tokens with up to 100% success using 63 requests per token on vLLM+LMCache.