{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:SGEION7G5MYGH3E4TWWMYYX4NI","short_pith_number":"pith:SGEION7G","canonical_record":{"source":{"id":"1108.2462","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-08-11T16:59:38Z","cross_cats_sorted":["cs.CR","math.IT"],"title_canon_sha256":"2dcc4b8b8755329d27076a6421a5c66c47fc404c391f2b581eb67da2f42670cc","abstract_canon_sha256":"90e75f46002e31569bf245f00f65a070023de6201a369244969bb8ebf129173d"},"schema_version":"1.0"},"canonical_sha256":"91888737e6eb3063ec9c9daccc62fc6a060f525dadc7beff3ad128afb6b6bb89","source":{"kind":"arxiv","id":"1108.2462","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.2462","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"arxiv_version","alias_value":"1108.2462v4","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.2462","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"pith_short_12","alias_value":"SGEION7G5MYG","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"SGEION7G5MYGH3E4","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"SGEION7G","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:SGEION7G5MYGH3E4TWWMYYX4NI","target":"record","payload":{"canonical_record":{"source":{"id":"1108.2462","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-08-11T16:59:38Z","cross_cats_sorted":["cs.CR","math.IT"],"title_canon_sha256":"2dcc4b8b8755329d27076a6421a5c66c47fc404c391f2b581eb67da2f42670cc","abstract_canon_sha256":"90e75f46002e31569bf245f00f65a070023de6201a369244969bb8ebf129173d"},"schema_version":"1.0"},"canonical_sha256":"91888737e6eb3063ec9c9daccc62fc6a060f525dadc7beff3ad128afb6b6bb89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:51:34.453518Z","signature_b64":"RkM3zxpydclNNM+9VI5snfZKbl5X4bKcJ1oDTtPItftSiQc0OrX0ixP2R/Llc0NkyuXKWgPUYiFnEgCGV0KKDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"91888737e6eb3063ec9c9daccc62fc6a060f525dadc7beff3ad128afb6b6bb89","last_reissued_at":"2026-05-18T02:51:34.453038Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:51:34.453038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.2462","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:51:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nk9UEH2ANFxF/VwKuUwsMLBiK09zO9nlRyTVCANvZQ89mBbjyShAPeOQscAhJwh6NLCxaAoEld1KVQWbGO8vBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:48:17.155426Z"},"content_sha256":"ceb8ca4b76bdba383a3634d3c0891bc73e3e29224c3d25396dc2caf66141cb6b","schema_version":"1.0","event_id":"sha256:ceb8ca4b76bdba383a3634d3c0891bc73e3e29224c3d25396dc2caf66141cb6b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:SGEION7G5MYGH3E4TWWMYYX4NI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhanced public key security for the McEliece cryptosystem","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CR","math.IT"],"primary_cat":"cs.IT","authors_text":"Davide Schipani, Franco Chiaraluce, Joachim Rosenthal, Marco Baldi, Marco Bianchi","submitted_at":"2011-08-11T16:59:38Z","abstract_excerpt":"This paper studies a variant of the McEliece cryptosystem able to ensure that the code used as the public key is no longer permutation-equivalent to the secret code. This increases the security level of the public key, thus opening the way for reconsidering the adoption of classical families of codes, like Reed-Solomon codes, that have been longly excluded from the McEliece cryptosystem for security reasons. It is well known that codes of these classes are able to yield a reduction in the key size or, equivalently, an increased level of security against information set decoding; so, these are "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.2462","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:51:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cy+hDYCLwtxXFYNdAicO3DeN3345iL9kznRg8GN5P+PIMybAExnZWJ7dHAykXUzyPXCwNPzyMVWS57KM122+Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:48:17.155997Z"},"content_sha256":"c3618aef48854e6fe951af76214967ca2121477a0e976cef4b1c6c3cccbdee7a","schema_version":"1.0","event_id":"sha256:c3618aef48854e6fe951af76214967ca2121477a0e976cef4b1c6c3cccbdee7a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SGEION7G5MYGH3E4TWWMYYX4NI/bundle.json","state_url":"https://pith.science/pith/SGEION7G5MYGH3E4TWWMYYX4NI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SGEION7G5MYGH3E4TWWMYYX4NI/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-07T11:48:17Z","links":{"resolver":"https://pith.science/pith/SGEION7G5MYGH3E4TWWMYYX4NI","bundle":"https://pith.science/pith/SGEION7G5MYGH3E4TWWMYYX4NI/bundle.json","state":"https://pith.science/pith/SGEION7G5MYGH3E4TWWMYYX4NI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SGEION7G5MYGH3E4TWWMYYX4NI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:SGEION7G5MYGH3E4TWWMYYX4NI","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":"90e75f46002e31569bf245f00f65a070023de6201a369244969bb8ebf129173d","cross_cats_sorted":["cs.CR","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-08-11T16:59:38Z","title_canon_sha256":"2dcc4b8b8755329d27076a6421a5c66c47fc404c391f2b581eb67da2f42670cc"},"schema_version":"1.0","source":{"id":"1108.2462","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.2462","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"arxiv_version","alias_value":"1108.2462v4","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.2462","created_at":"2026-05-18T02:51:34Z"},{"alias_kind":"pith_short_12","alias_value":"SGEION7G5MYG","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"SGEION7G5MYGH3E4","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"SGEION7G","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:c3618aef48854e6fe951af76214967ca2121477a0e976cef4b1c6c3cccbdee7a","target":"graph","created_at":"2026-05-18T02:51:34Z","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":"This paper studies a variant of the McEliece cryptosystem able to ensure that the code used as the public key is no longer permutation-equivalent to the secret code. This increases the security level of the public key, thus opening the way for reconsidering the adoption of classical families of codes, like Reed-Solomon codes, that have been longly excluded from the McEliece cryptosystem for security reasons. It is well known that codes of these classes are able to yield a reduction in the key size or, equivalently, an increased level of security against information set decoding; so, these are ","authors_text":"Davide Schipani, Franco Chiaraluce, Joachim Rosenthal, Marco Baldi, Marco Bianchi","cross_cats":["cs.CR","math.IT"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-08-11T16:59:38Z","title":"Enhanced public key security for the McEliece cryptosystem"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.2462","kind":"arxiv","version":4},"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:ceb8ca4b76bdba383a3634d3c0891bc73e3e29224c3d25396dc2caf66141cb6b","target":"record","created_at":"2026-05-18T02:51:34Z","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":"90e75f46002e31569bf245f00f65a070023de6201a369244969bb8ebf129173d","cross_cats_sorted":["cs.CR","math.IT"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IT","submitted_at":"2011-08-11T16:59:38Z","title_canon_sha256":"2dcc4b8b8755329d27076a6421a5c66c47fc404c391f2b581eb67da2f42670cc"},"schema_version":"1.0","source":{"id":"1108.2462","kind":"arxiv","version":4}},"canonical_sha256":"91888737e6eb3063ec9c9daccc62fc6a060f525dadc7beff3ad128afb6b6bb89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91888737e6eb3063ec9c9daccc62fc6a060f525dadc7beff3ad128afb6b6bb89","first_computed_at":"2026-05-18T02:51:34.453038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:51:34.453038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RkM3zxpydclNNM+9VI5snfZKbl5X4bKcJ1oDTtPItftSiQc0OrX0ixP2R/Llc0NkyuXKWgPUYiFnEgCGV0KKDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:51:34.453518Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.2462","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ceb8ca4b76bdba383a3634d3c0891bc73e3e29224c3d25396dc2caf66141cb6b","sha256:c3618aef48854e6fe951af76214967ca2121477a0e976cef4b1c6c3cccbdee7a"],"state_sha256":"92aae1e5e184e26296cfd1dd7ce8d52aa5d1601d5a18fb3d788a2b2e72fc171f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Em/ZQfLhrJMaaSLXPX8RwJdV9VQm3e5Wpf44nHRVAKcL2hur7PxLvVQWT1czZI7PN604c9fbty7KJsZbHZVnDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T11:48:17.159348Z","bundle_sha256":"98a7d5a3fd714855fda019d88a04a7ac93ae7bc2e354456c0c197e26639c414d"}}