{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:WGZ35JHTNDIRASI3T3A6KCOTDG","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":"b9d0f7df69b3f67c331d0d96ad547826f77b984f869bb36f814bbf18f42e7fc4","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-03-01T16:19:31Z","title_canon_sha256":"d6c40d291a9a4c55f3e20c76f79154bcd96f8e5dd2e4c17a8fe778f523857b1b"},"schema_version":"1.0","source":{"id":"1303.0210","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.0210","created_at":"2026-05-18T02:42:06Z"},{"alias_kind":"arxiv_version","alias_value":"1303.0210v1","created_at":"2026-05-18T02:42:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.0210","created_at":"2026-05-18T02:42:06Z"},{"alias_kind":"pith_short_12","alias_value":"WGZ35JHTNDIR","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_16","alias_value":"WGZ35JHTNDIRASI3","created_at":"2026-05-18T12:28:04Z"},{"alias_kind":"pith_short_8","alias_value":"WGZ35JHT","created_at":"2026-05-18T12:28:04Z"}],"graph_snapshots":[{"event_id":"sha256:85a4ff0534edc0bc2178af2920e0b3961d65665ecf72416329b7711a053da732","target":"graph","created_at":"2026-05-18T02:42:06Z","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":"Information-theoretically secure (ITS) authentication is needed in Quantum Key Distribution (QKD). In this paper, we study security of an ITS authentication scheme proposed by Wegman & Carter, in the case of partially known authentication key. This scheme uses a new authentication key in each authentication attempt, to select a hash function from an Almost Strongly Universal$_2$ hash function family. The partial knowledge of the attacker is measured as the trace distance between the authentication key distribution and the uniform distribution; this is the usual measure in QKD. We provide direc","authors_text":"Aysajan Abidin, Jan-{\\AA}ke Larsson","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-03-01T16:19:31Z","title":"Direct Proof of Security of Wegman-Carter Authentication with Partially Known Key"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.0210","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:e7f6fd0df936f17a5e9b322957748ce3361b17429a2c215c5318977049839382","target":"record","created_at":"2026-05-18T02:42:06Z","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":"b9d0f7df69b3f67c331d0d96ad547826f77b984f869bb36f814bbf18f42e7fc4","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2013-03-01T16:19:31Z","title_canon_sha256":"d6c40d291a9a4c55f3e20c76f79154bcd96f8e5dd2e4c17a8fe778f523857b1b"},"schema_version":"1.0","source":{"id":"1303.0210","kind":"arxiv","version":1}},"canonical_sha256":"b1b3bea4f368d110491b9ec1e509d319b06b15e113c96c7f7f7a6f07a5194028","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b1b3bea4f368d110491b9ec1e509d319b06b15e113c96c7f7f7a6f07a5194028","first_computed_at":"2026-05-18T02:42:06.246722Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:42:06.246722Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jtx3GcgaRYTSnufZBDR18pNgIKvYw2RJ7o61uZ7rgCm6vXJZ+mAxttdZNkdzpEbwAKgM2nTib/T3ZuPEgNr1Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:42:06.247358Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.0210","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e7f6fd0df936f17a5e9b322957748ce3361b17429a2c215c5318977049839382","sha256:85a4ff0534edc0bc2178af2920e0b3961d65665ecf72416329b7711a053da732"],"state_sha256":"da09f06446b1a2c5fc2100b9364efb25f527e3976aaa40b00b6e81650b0b7b4f"}