{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YK3GTJYAEOAURCHTJK5ZH3M3XY","short_pith_number":"pith:YK3GTJYA","canonical_record":{"source":{"id":"1908.03383","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-09T09:33:03Z","cross_cats_sorted":[],"title_canon_sha256":"3ba5a747207f3c82aabd117e97bb1fe06c1b042ab32de4f7f39c056a4257d404","abstract_canon_sha256":"555f73c7373137ecffd87bf40d87ed1d8c7108e57af62d2660b234946349e939"},"schema_version":"1.0"},"canonical_sha256":"c2b669a70023814888f34abb93ed9bbe22b540cbf41bcb70ce6bd8b52f504e0e","source":{"kind":"arxiv","id":"1908.03383","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03383","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03383v1","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03383","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"pith_short_12","alias_value":"YK3GTJYAEOAU","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"pith_short_16","alias_value":"YK3GTJYAEOAURCHT","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"pith_short_8","alias_value":"YK3GTJYA","created_at":"2026-07-04T23:52:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YK3GTJYAEOAURCHTJK5ZH3M3XY","target":"record","payload":{"canonical_record":{"source":{"id":"1908.03383","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-09T09:33:03Z","cross_cats_sorted":[],"title_canon_sha256":"3ba5a747207f3c82aabd117e97bb1fe06c1b042ab32de4f7f39c056a4257d404","abstract_canon_sha256":"555f73c7373137ecffd87bf40d87ed1d8c7108e57af62d2660b234946349e939"},"schema_version":"1.0"},"canonical_sha256":"c2b669a70023814888f34abb93ed9bbe22b540cbf41bcb70ce6bd8b52f504e0e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:52:39.497024Z","signature_b64":"jWv/e55Y5/PG/6AJ2/NEh3TbhBAttZFgmuhvBdTYMHMvx/AgNTuS1g9F1t8wmGpTdyAGq7YXYiSI3/2d/A5aCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c2b669a70023814888f34abb93ed9bbe22b540cbf41bcb70ce6bd8b52f504e0e","last_reissued_at":"2026-07-04T23:52:39.496636Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:52:39.496636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.03383","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T23:52:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hg8TAlXURb9mLCIHo5b3oYJow1f+TquN7x0XLE963GQsHH4yqLaFza/VuomJIEvWEORxMG4GTpG67hGgR8nIAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:13:49.265115Z"},"content_sha256":"c37ae61213600026530149a1be764f6b39ffcd44bc14fbb9175d1203eb345ec9","schema_version":"1.0","event_id":"sha256:c37ae61213600026530149a1be764f6b39ffcd44bc14fbb9175d1203eb345ec9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YK3GTJYAEOAURCHTJK5ZH3M3XY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Advanced profiling for probabilistic Prime+Probe attacks and covert channels in ScatterCache","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Antoon Purnal, Ingrid Verbauwhede","submitted_at":"2019-08-09T09:33:03Z","abstract_excerpt":"Timing channels in cache hierarchies are an important enabler in many microarchitectural attacks. ScatterCache (USENIX 2019) is a protected cache architecture that randomizes the address-to-index mapping with a keyed cryptographic function, aiming to thwart the usage of cache-based timing channels in microarchitectural attacks. In this note, we advance the understanding of the security of ScatterCache by outlining two attacks in the noise-free case, i.e. matching the assumptions in the original analysis. As a first contribution, we present more efficient eviction set profiling, reducing the re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03383","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.03383/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T23:52:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BSZU1laAxj9Fk1W80q9Muo0Or2lugcBIyADNBffN0fuViFBnXi3S8ArzV8+qjW8q21qBVHDCwSHfGgT6S+xjAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T10:13:49.266082Z"},"content_sha256":"7290728e28d7b291530383c3d4e184acddc2c3d458fe88ada76174dbf2c4fe86","schema_version":"1.0","event_id":"sha256:7290728e28d7b291530383c3d4e184acddc2c3d458fe88ada76174dbf2c4fe86"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY/bundle.json","state_url":"https://pith.science/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY/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":"2026-08-06T10:13:49Z","links":{"resolver":"https://pith.science/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY","bundle":"https://pith.science/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY/bundle.json","state":"https://pith.science/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YK3GTJYAEOAURCHTJK5ZH3M3XY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YK3GTJYAEOAURCHTJK5ZH3M3XY","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":"555f73c7373137ecffd87bf40d87ed1d8c7108e57af62d2660b234946349e939","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-09T09:33:03Z","title_canon_sha256":"3ba5a747207f3c82aabd117e97bb1fe06c1b042ab32de4f7f39c056a4257d404"},"schema_version":"1.0","source":{"id":"1908.03383","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.03383","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"arxiv_version","alias_value":"1908.03383v1","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.03383","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"pith_short_12","alias_value":"YK3GTJYAEOAU","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"pith_short_16","alias_value":"YK3GTJYAEOAURCHT","created_at":"2026-07-04T23:52:39Z"},{"alias_kind":"pith_short_8","alias_value":"YK3GTJYA","created_at":"2026-07-04T23:52:39Z"}],"graph_snapshots":[{"event_id":"sha256:7290728e28d7b291530383c3d4e184acddc2c3d458fe88ada76174dbf2c4fe86","target":"graph","created_at":"2026-07-04T23:52:39Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.03383/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Timing channels in cache hierarchies are an important enabler in many microarchitectural attacks. ScatterCache (USENIX 2019) is a protected cache architecture that randomizes the address-to-index mapping with a keyed cryptographic function, aiming to thwart the usage of cache-based timing channels in microarchitectural attacks. In this note, we advance the understanding of the security of ScatterCache by outlining two attacks in the noise-free case, i.e. matching the assumptions in the original analysis. As a first contribution, we present more efficient eviction set profiling, reducing the re","authors_text":"Antoon Purnal, Ingrid Verbauwhede","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-09T09:33:03Z","title":"Advanced profiling for probabilistic Prime+Probe attacks and covert channels in ScatterCache"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.03383","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:c37ae61213600026530149a1be764f6b39ffcd44bc14fbb9175d1203eb345ec9","target":"record","created_at":"2026-07-04T23:52:39Z","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":"555f73c7373137ecffd87bf40d87ed1d8c7108e57af62d2660b234946349e939","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2019-08-09T09:33:03Z","title_canon_sha256":"3ba5a747207f3c82aabd117e97bb1fe06c1b042ab32de4f7f39c056a4257d404"},"schema_version":"1.0","source":{"id":"1908.03383","kind":"arxiv","version":1}},"canonical_sha256":"c2b669a70023814888f34abb93ed9bbe22b540cbf41bcb70ce6bd8b52f504e0e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2b669a70023814888f34abb93ed9bbe22b540cbf41bcb70ce6bd8b52f504e0e","first_computed_at":"2026-07-04T23:52:39.496636Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:52:39.496636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jWv/e55Y5/PG/6AJ2/NEh3TbhBAttZFgmuhvBdTYMHMvx/AgNTuS1g9F1t8wmGpTdyAGq7YXYiSI3/2d/A5aCw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:52:39.497024Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.03383","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c37ae61213600026530149a1be764f6b39ffcd44bc14fbb9175d1203eb345ec9","sha256:7290728e28d7b291530383c3d4e184acddc2c3d458fe88ada76174dbf2c4fe86"],"state_sha256":"5ed8afa2eaa6819c8633693627f0e81d4d3e24fff677338de4ab4fd377f56107"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wCaLqyn3cbw2GypOJCth5z2i5caJssoFC1vxajbImx10WULmoeV1Jz34KBZ86Nr7Qc/kz9qrynF9RLThmCy2AA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T10:13:49.274411Z","bundle_sha256":"d77f41f193e29d9603c6ff5a37669639a251b3982203c7fb7de858d5eb6c4195"}}