LATIDIA · Ciberseguridad

De la revisión a la autorización: firma de umbral aislado clave para agentes de LLM

arXiv:2609.05901v2 Anuncio Tipo: reemplazar Resumen: Los agentes LLM autónomos pueden convertir juicios semánticos en acciones consecuentes, como pagos y cambios de permisos. Si el mismo proceso realiza estos juicios y consecuentes

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arXiv:2609.05901v2 Announce Type: replace Abstract: Autonomous LLM agents can turn semantic judgments into consequential actions such as payments and permission changes. If the same process makes these judgments and controls a reusable signing credential, a mistaken judgment can reach execution without further approval. To make LLM review govern execution, we present KITA, an authorization architecture that keeps the user's personal signing key and every threshold signing-key share outside all LLM processes. Under threshold-signature unforgeability and our system assumptions, an adversary controlling the proposer and fewer than t reviewer-signer domains cannot produce a valid authorization for a new action without signing contributions from t distinct domains. This execution-bound authorization integrity ensures