{"paper":{"title":"SUDP: Secret-Use Delegation Protocol for Agentic Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"SUDP lets untrusted agents trigger secret-backed operations with single-use grants that never expose reusable authority.","cross_cats":["cs.AI"],"primary_cat":"cs.CR","authors_text":"Hejia Geng, William Knottenbelt, Xiaohang Yu, Xinmeng Zeng","submitted_at":"2026-04-27T19:02:08Z","abstract_excerpt":"Agentic systems increasingly act with user secrets for APIs, messaging platforms, and cloud services. Today's agent runtimes typically implement authorization by exposure: enabling action often means placing a reusable secret, or a reusable artifact derived from it, inside the runtime, so a transient prompt-injection or tool-side compromise becomes durable account compromise. Existing defenses cover adjacent pieces such as secret storage, scoped delegation, sender-constrained tokens, and runtime monitoring, but leave the combined agentic obligation without a common specification: an untrusted "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Under explicit assumptions, we show that SUDP satisfies the ASU requirements: authorization is verifiable, operation-bound, and single-use. SUDP also provides storage confidentiality and wrapping-epoch key isolation under stated sealing and erasure assumptions; plaintext-level forward secrecy of the underlying secret additionally requires the environment to rotate and revoke it.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The protocol satisfies its security properties under explicit assumptions including stated sealing and erasure assumptions for confidentiality and key isolation, plus environment-driven rotation and revocation of the secret for forward secrecy.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"SUDP is a protocol allowing untrusted agents to cause bounded, secret-backed operations through fresh user grants redeemed by a custodian, preventing reusable secret exposure.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"SUDP lets untrusted agents trigger secret-backed operations with single-use grants that never expose reusable authority.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"bb16c35211c8ebbf0a230b64a743e85849ed76a4f5ae826a9eb8619bb9c92b94"},"source":{"id":"2604.24920","kind":"arxiv","version":3},"verdict":{"id":"56eedb16-e9fc-4859-8074-266ed94dd78d","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-08T02:36:05.262354Z","strongest_claim":"Under explicit assumptions, we show that SUDP satisfies the ASU requirements: authorization is verifiable, operation-bound, and single-use. SUDP also provides storage confidentiality and wrapping-epoch key isolation under stated sealing and erasure assumptions; plaintext-level forward secrecy of the underlying secret additionally requires the environment to rotate and revoke it.","one_line_summary":"SUDP is a protocol allowing untrusted agents to cause bounded, secret-backed operations through fresh user grants redeemed by a custodian, preventing reusable secret exposure.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The protocol satisfies its security properties under explicit assumptions including stated sealing and erasure assumptions for confidentiality and key isolation, plus environment-driven rotation and revocation of the secret for forward secrecy.","pith_extraction_headline":"SUDP lets untrusted agents trigger secret-backed operations with single-use grants that never expose reusable authority."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.24920/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"ai_meta_artifact","ran_at":"2026-05-21T05:42:40.227338Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T21:41:55.484249Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"4b3697bd6efbdea7d0333f402a65899b32b7add21cfd4d528720ee76790095e0"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}