{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:E2HAZQ7QYDWZLEQ4K6WTR6GXOZ","short_pith_number":"pith:E2HAZQ7Q","canonical_record":{"source":{"id":"1610.02534","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2016-10-08T14:16:42Z","cross_cats_sorted":[],"title_canon_sha256":"397ff2d9960fb0e9e2445d4490e4dab57632ae2e92119cd197e00775833af2e3","abstract_canon_sha256":"56b730eae359222d4c4b7d56281c6a163a218fabb89bf4bb54693fa1f30957bd"},"schema_version":"1.0"},"canonical_sha256":"268e0cc3f0c0ed95921c57ad38f8d7764dc7f1f6d0cfd8758a5c41aee08084ed","source":{"kind":"arxiv","id":"1610.02534","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.02534","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.02534v1","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.02534","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"pith_short_12","alias_value":"E2HAZQ7QYDWZ","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"E2HAZQ7QYDWZLEQ4","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"E2HAZQ7Q","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:E2HAZQ7QYDWZLEQ4K6WTR6GXOZ","target":"record","payload":{"canonical_record":{"source":{"id":"1610.02534","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2016-10-08T14:16:42Z","cross_cats_sorted":[],"title_canon_sha256":"397ff2d9960fb0e9e2445d4490e4dab57632ae2e92119cd197e00775833af2e3","abstract_canon_sha256":"56b730eae359222d4c4b7d56281c6a163a218fabb89bf4bb54693fa1f30957bd"},"schema_version":"1.0"},"canonical_sha256":"268e0cc3f0c0ed95921c57ad38f8d7764dc7f1f6d0cfd8758a5c41aee08084ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:02:51.291066Z","signature_b64":"fyt9V9/RzyDeO3c1lbPTKECgPTI6aXWQ7nUzW/VrYavBIvj+KzBJBFaK2KSSoOqfJ/RMRQOAQV//bee6PfOfBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"268e0cc3f0c0ed95921c57ad38f8d7764dc7f1f6d0cfd8758a5c41aee08084ed","last_reissued_at":"2026-05-18T01:02:51.290731Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:02:51.290731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.02534","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":"2026-05-18T01:02:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0F7H/01OPHia+EyuGy+qCTtQutpN7eDWrCj/QILKfwDb1eNIb1iyb6K7Tuq+P57eb8z1+bWY6UUtqLmFfA+5BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:06:32.826209Z"},"content_sha256":"e490489ef7f1c44f5e010459369f9cc00d9d4acf5cc3eb5264055f7a03c90a0b","schema_version":"1.0","event_id":"sha256:e490489ef7f1c44f5e010459369f9cc00d9d4acf5cc3eb5264055f7a03c90a0b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:E2HAZQ7QYDWZLEQ4K6WTR6GXOZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the security defects of an image encryption scheme","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CR","authors_text":"Chengqing Li, Gonzalo Alvarez, Guanrong Chen, Juana Nunez, Muhammad Asim, Shujun Li","submitted_at":"2016-10-08T14:16:42Z","abstract_excerpt":"This paper studies the security of a recently-proposed chaos-based image encryption scheme, and points out the following problems: 1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for encryption/decryption; 2) given one chosen plain-image, a subkey $K_{10}$ can be guessed with a smaller computational complexity than that of the simple brute-force attack; 3) given at most 128 chosen plain-images, a chosen-plaintext attack can possibly break the following part of the secret key: $\\{K_i\\bmod 128\\}_{i=4}^{10}$, which works very well when $K_{10}$ is not"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.02534","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:02:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3oxe2mK/wBJWC2pZxL9ttfEtYmsn8e2cTSdHOcKpZ+GzNthYIzNzPrRUKRijDeSf8h14s5CghiHMJXLTo91UDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T23:06:32.826832Z"},"content_sha256":"27f2149b79a055f875602387318977ab860455336ce4cd6e9ad8cb451ac47eb4","schema_version":"1.0","event_id":"sha256:27f2149b79a055f875602387318977ab860455336ce4cd6e9ad8cb451ac47eb4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ/bundle.json","state_url":"https://pith.science/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ/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":"2026-06-04T23:06:32Z","links":{"resolver":"https://pith.science/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ","bundle":"https://pith.science/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ/bundle.json","state":"https://pith.science/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E2HAZQ7QYDWZLEQ4K6WTR6GXOZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:E2HAZQ7QYDWZLEQ4K6WTR6GXOZ","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":"56b730eae359222d4c4b7d56281c6a163a218fabb89bf4bb54693fa1f30957bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2016-10-08T14:16:42Z","title_canon_sha256":"397ff2d9960fb0e9e2445d4490e4dab57632ae2e92119cd197e00775833af2e3"},"schema_version":"1.0","source":{"id":"1610.02534","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.02534","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"arxiv_version","alias_value":"1610.02534v1","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.02534","created_at":"2026-05-18T01:02:51Z"},{"alias_kind":"pith_short_12","alias_value":"E2HAZQ7QYDWZ","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"E2HAZQ7QYDWZLEQ4","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"E2HAZQ7Q","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:27f2149b79a055f875602387318977ab860455336ce4cd6e9ad8cb451ac47eb4","target":"graph","created_at":"2026-05-18T01:02:51Z","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 the security of a recently-proposed chaos-based image encryption scheme, and points out the following problems: 1) there exist a number of invalid keys and weak keys, and some keys are partially equivalent for encryption/decryption; 2) given one chosen plain-image, a subkey $K_{10}$ can be guessed with a smaller computational complexity than that of the simple brute-force attack; 3) given at most 128 chosen plain-images, a chosen-plaintext attack can possibly break the following part of the secret key: $\\{K_i\\bmod 128\\}_{i=4}^{10}$, which works very well when $K_{10}$ is not","authors_text":"Chengqing Li, Gonzalo Alvarez, Guanrong Chen, Juana Nunez, Muhammad Asim, Shujun Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2016-10-08T14:16:42Z","title":"On the security defects of an image encryption scheme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.02534","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:e490489ef7f1c44f5e010459369f9cc00d9d4acf5cc3eb5264055f7a03c90a0b","target":"record","created_at":"2026-05-18T01:02:51Z","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":"56b730eae359222d4c4b7d56281c6a163a218fabb89bf4bb54693fa1f30957bd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CR","submitted_at":"2016-10-08T14:16:42Z","title_canon_sha256":"397ff2d9960fb0e9e2445d4490e4dab57632ae2e92119cd197e00775833af2e3"},"schema_version":"1.0","source":{"id":"1610.02534","kind":"arxiv","version":1}},"canonical_sha256":"268e0cc3f0c0ed95921c57ad38f8d7764dc7f1f6d0cfd8758a5c41aee08084ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"268e0cc3f0c0ed95921c57ad38f8d7764dc7f1f6d0cfd8758a5c41aee08084ed","first_computed_at":"2026-05-18T01:02:51.290731Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:02:51.290731Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fyt9V9/RzyDeO3c1lbPTKECgPTI6aXWQ7nUzW/VrYavBIvj+KzBJBFaK2KSSoOqfJ/RMRQOAQV//bee6PfOfBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:02:51.291066Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.02534","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e490489ef7f1c44f5e010459369f9cc00d9d4acf5cc3eb5264055f7a03c90a0b","sha256:27f2149b79a055f875602387318977ab860455336ce4cd6e9ad8cb451ac47eb4"],"state_sha256":"0f089c74341c2275ef9b04f145ffbb410fa68e6c7208f19ab8eaf3748daba618"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1FpanhkJ9cKdcHL4qdjiQriS9nI6wJX9nobWFKNCSS4WV+6o58kMlwG7so/j3mDMX1u0Dh6gX7EN4MP7DV9cDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T23:06:32.830439Z","bundle_sha256":"b4d19f0216882698527aa35e376da6d8e187c43270ff7d3acfa11a8f56f22977"}}