{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:UVCSII6ZYJIXXHBKUKJGXHYJUY","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"963a915ac9b074490978a5a63e8346030cbc431165ba64e1657f371760bcc21b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-30T15:32:27Z","title_canon_sha256":"8932eb5192ef1e0e8a75d90e11f3a15f5b677eb47f4cd693cf850b0c8616e67e"},"schema_version":"1.0","source":{"id":"1111.7209","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1111.7209","created_at":"2026-05-18T04:07:18Z"},{"alias_kind":"arxiv_version","alias_value":"1111.7209v1","created_at":"2026-05-18T04:07:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.7209","created_at":"2026-05-18T04:07:18Z"},{"alias_kind":"pith_short_12","alias_value":"UVCSII6ZYJIX","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"UVCSII6ZYJIXXHBK","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"UVCSII6Z","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:f970530470dbe143f69330621fab1654c31d04c19a5c54499b6175197fb2eadf","target":"graph","created_at":"2026-05-18T04:07:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Hierarchical access control is an important and traditional problem in information security. In 2001, Wu et.al. proposed an elegant solution for hierarchical access control by the secure-filter. Jeng and Wang presented an improvement of Wu et. al.'s method by the ECC cryptosystem. However, secure-filter method is insecure in dynaminc access control. Lie, Hsu and Tripathy, Paul pointed out some secure leaks on the secure-filter and presented some improvements to eliminate these secure flaws. In this paper, we revise the secure-filter in Jeng-Wang method and propose another secure solutions in h","authors_text":"Chuan-Sheng Wei, Sheng-Gwo Chen, Tone-Yau Huang, Yao Lin Ong","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-30T15:32:27Z","title":"A secure solution on hierarchical access control"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.7209","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1b24f61cb0dd5b380f7117db27c36a5c887086668590f9f80da6f35ef1174475","target":"record","created_at":"2026-05-18T04:07:18Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"963a915ac9b074490978a5a63e8346030cbc431165ba64e1657f371760bcc21b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2011-11-30T15:32:27Z","title_canon_sha256":"8932eb5192ef1e0e8a75d90e11f3a15f5b677eb47f4cd693cf850b0c8616e67e"},"schema_version":"1.0","source":{"id":"1111.7209","kind":"arxiv","version":1}},"canonical_sha256":"a5452423d9c2517b9c2aa2926b9f09a622922cf5ac1b8cb7fd707e0df71a37f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a5452423d9c2517b9c2aa2926b9f09a622922cf5ac1b8cb7fd707e0df71a37f6","first_computed_at":"2026-05-18T04:07:18.453535Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:07:18.453535Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+Hb/zf3oEROS365hKLmKIF1gdf41xWIzs/jbP4kxadQMMJGIiS61GcTHss41KOaaWIWwTK3rXXiKyn+kTUnXAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:07:18.454277Z","signed_message":"canonical_sha256_bytes"},"source_id":"1111.7209","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b24f61cb0dd5b380f7117db27c36a5c887086668590f9f80da6f35ef1174475","sha256:f970530470dbe143f69330621fab1654c31d04c19a5c54499b6175197fb2eadf"],"state_sha256":"b06b0f41cb4af0503f7a1b8e832d99feaea1217b29757a662c164a9538daf103"}