{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:CBD2LMQ5HWSHYOYSORLD3Y6MLM","short_pith_number":"pith:CBD2LMQ5","schema_version":"1.0","canonical_sha256":"1047a5b21d3da47c3b1274563de3cc5b1cb65dabae055efc9ab6d65be9905e04","source":{"kind":"arxiv","id":"1603.05615","version":1},"attestation_state":"computed","paper":{"title":"A software approach to defeating side channels in last-level caches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Michael K. Reiter, Yinqian Zhang, Ziqiao Zhou","submitted_at":"2016-03-17T19:02:56Z","abstract_excerpt":"We present a software approach to mitigate access-driven side-channel attacks that leverage last-level caches (LLCs) shared across cores to leak information between security domains (e.g., tenants in a cloud). Our approach dynamically manages physical memory pages shared between security domains to disable sharing of LLC lines, thus preventing \"Flush-Reload\" side channels via LLCs. It also manages cacheability of memory pages to thwart cross-tenant \"Prime-Probe\" attacks in LLCs. We have implemented our approach as a memory management subsystem called CacheBar within the Linux kernel to interve"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1603.05615","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2016-03-17T19:02:56Z","cross_cats_sorted":[],"title_canon_sha256":"4264e0e88d4ff0e6c91768ed3b3070b4a7f2a82e9f105e44bd59f62883c70b96","abstract_canon_sha256":"52e54ce199413e58e083442ab3b83d7058dbb97216bfb1b91e39cf1f07356d56"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:56.007804Z","signature_b64":"IXuwIe7y8BcKzI1jzgXRx5SXp02jUrBP7NZNS563zBsSNG3rU7dtjjf5auegc/0zejSsSCvtYQ8q0h0NvT+9Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1047a5b21d3da47c3b1274563de3cc5b1cb65dabae055efc9ab6d65be9905e04","last_reissued_at":"2026-05-18T01:18:56.007337Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:56.007337Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A software approach to defeating side channels in last-level caches","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Michael K. Reiter, Yinqian Zhang, Ziqiao Zhou","submitted_at":"2016-03-17T19:02:56Z","abstract_excerpt":"We present a software approach to mitigate access-driven side-channel attacks that leverage last-level caches (LLCs) shared across cores to leak information between security domains (e.g., tenants in a cloud). Our approach dynamically manages physical memory pages shared between security domains to disable sharing of LLC lines, thus preventing \"Flush-Reload\" side channels via LLCs. It also manages cacheability of memory pages to thwart cross-tenant \"Prime-Probe\" attacks in LLCs. We have implemented our approach as a memory management subsystem called CacheBar within the Linux kernel to interve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.05615","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1603.05615","created_at":"2026-05-18T01:18:56.007406+00:00"},{"alias_kind":"arxiv_version","alias_value":"1603.05615v1","created_at":"2026-05-18T01:18:56.007406+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.05615","created_at":"2026-05-18T01:18:56.007406+00:00"},{"alias_kind":"pith_short_12","alias_value":"CBD2LMQ5HWSH","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_16","alias_value":"CBD2LMQ5HWSHYOYS","created_at":"2026-05-18T12:30:09.641336+00:00"},{"alias_kind":"pith_short_8","alias_value":"CBD2LMQ5","created_at":"2026-05-18T12:30:09.641336+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM","json":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM.json","graph_json":"https://pith.science/api/pith-number/CBD2LMQ5HWSHYOYSORLD3Y6MLM/graph.json","events_json":"https://pith.science/api/pith-number/CBD2LMQ5HWSHYOYSORLD3Y6MLM/events.json","paper":"https://pith.science/paper/CBD2LMQ5"},"agent_actions":{"view_html":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM","download_json":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM.json","view_paper":"https://pith.science/paper/CBD2LMQ5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1603.05615&json=true","fetch_graph":"https://pith.science/api/pith-number/CBD2LMQ5HWSHYOYSORLD3Y6MLM/graph.json","fetch_events":"https://pith.science/api/pith-number/CBD2LMQ5HWSHYOYSORLD3Y6MLM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM/action/storage_attestation","attest_author":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM/action/author_attestation","sign_citation":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM/action/citation_signature","submit_replication":"https://pith.science/pith/CBD2LMQ5HWSHYOYSORLD3Y6MLM/action/replication_record"}},"created_at":"2026-05-18T01:18:56.007406+00:00","updated_at":"2026-05-18T01:18:56.007406+00:00"}