{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:E5D2E6LFR2JADCJHBTLECCLWKM","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":"f589a9231adcc92656283cfb082805d1fbbacb352d45ac9635c4a3a16e3b49c4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2012-03-04T13:54:17Z","title_canon_sha256":"da9a949733dc8fc63612d27d0ae3c92d6689906c3e20031f898e31f69a4a7acb"},"schema_version":"1.0","source":{"id":"1203.0739","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.0739","created_at":"2026-05-18T04:00:50Z"},{"alias_kind":"arxiv_version","alias_value":"1203.0739v1","created_at":"2026-05-18T04:00:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.0739","created_at":"2026-05-18T04:00:50Z"},{"alias_kind":"pith_short_12","alias_value":"E5D2E6LFR2JA","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"E5D2E6LFR2JADCJH","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"E5D2E6LF","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:6cfebc955c2cf33f17443e285a5edb00fe58233d8d58395564c9edb7b0e077d3","target":"graph","created_at":"2026-05-18T04:00:50Z","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":"The faraday mirror (FM) plays a very important role in maintaining the stability of two way plug-and-play quantum key distribution (QKD) system. However, the practical FM is imperfect, which will not only introduce additional quantum bit error rate (QBER) but also leave a loophole for Eve to spy the secret key. In this paper, we propose a passive faraday mirror attack in two way QKD system based on the imperfection of FM. Our analysis shows that, if the FM is imperfect, the dimension of Hilbert space spanned by the four states sent by Alice is three instead of two. Thus Eve can distinguish the","authors_text":"Lin-Mei Liang, Mu-Sheng Jiang, Shi-Hai Sun","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2012-03-04T13:54:17Z","title":"Passive faraday mirror attack in practical two-way quantum key distribution system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.0739","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":"sha256:818ce703365a6c3c55a161b74c72a2f60f108856ab0d7f9a6e0fa3c43fb2c06f","target":"record","created_at":"2026-05-18T04:00:50Z","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":"f589a9231adcc92656283cfb082805d1fbbacb352d45ac9635c4a3a16e3b49c4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2012-03-04T13:54:17Z","title_canon_sha256":"da9a949733dc8fc63612d27d0ae3c92d6689906c3e20031f898e31f69a4a7acb"},"schema_version":"1.0","source":{"id":"1203.0739","kind":"arxiv","version":1}},"canonical_sha256":"2747a279658e920189270cd64109765321d23df6fe2b941a482504ad399b5e7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2747a279658e920189270cd64109765321d23df6fe2b941a482504ad399b5e7d","first_computed_at":"2026-05-18T04:00:50.665483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:50.665483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"05bPEqi8fCWxd0P5cSF0JTB2Vhn+oZSAmuOmO5LV3QO7aG2KlbB1S1QXhZsy6loWSXkkpeep0KdUhWOJKhDODA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:50.666201Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.0739","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:818ce703365a6c3c55a161b74c72a2f60f108856ab0d7f9a6e0fa3c43fb2c06f","sha256:6cfebc955c2cf33f17443e285a5edb00fe58233d8d58395564c9edb7b0e077d3"],"state_sha256":"89b2473e100e7b7cf197e86ff36cb262796417a984a2922b3d9cd77a2ab0e690"}