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Add in-toto format as hash of shard hashes (#265)
This converts model serialization manifests that record every model file shard hash into an in-toto payload that can then be passed to Sigstore's `sign_intoto` for signing to generate a Sigstore `Bundle` (if using Sigstore). To identify the models, we compute a hash of all hashes of the file shards and use that as the subject. The individual file hashes are used as the payload and we would have the verifier check them as part of the verification process. Signed-off-by: Mihai Maruseac <mihaimaruseac@google.com>
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35 changes: 35 additions & 0 deletions
35
..._signing/signing/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/deep_model_folder
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "18b5a45fe7983f7194e8ffd96c80f5f0ec53191bf4a32b6aff293f043e816d7a" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [ | ||
{ | ||
"digest": "6efa14bb03544fcb76045c55f25b9315b6eb5be2d8a85f703193a76b7874c6ff", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/d1/d2/d3/d4/f0:0:16" | ||
}, | ||
{ | ||
"digest": "a9bc149b70b9d325cd68d275d582cfdb98c0347d3ce54590aa6533368daed3d2", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/d1/d2/d3/d4/f1:0:16" | ||
}, | ||
{ | ||
"digest": "5f597e6a92d1324d9adbed43d527926d11d0131487baf315e65ae1ef3b1ca3c0", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/d1/d2/d3/d4/f2:0:16" | ||
}, | ||
{ | ||
"digest": "eaf677c35fec6b87889d9e4563d8bb65dcb9869ca0225697c9cc44cf49dca008", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/d1/d2/d3/d4/f3:0:16" | ||
} | ||
] | ||
} | ||
} |
14 changes: 14 additions & 0 deletions
14
...l_signing/signing/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/empty_model_file
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [] | ||
} | ||
} |
14 changes: 14 additions & 0 deletions
14
...signing/signing/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/empty_model_folder
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [] | ||
} | ||
} |
14 changes: 14 additions & 0 deletions
14
...gning/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/model_folder_with_empty_file
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [] | ||
} | ||
} |
20 changes: 20 additions & 0 deletions
20
..._signing/signing/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/sample_model_file
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "002d162f867c5eee944e5080d25829b6625be0e3f081f6fbafc7dd655ca2e178" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [ | ||
{ | ||
"digest": "3aab065c7181a173b5dd9e9d32a9f79923440b413be1e1ffcdba26a7365f719b", | ||
"algorithm": "file-sha256-1000000", | ||
"name": ".:0:22" | ||
} | ||
] | ||
} | ||
} |
65 changes: 65 additions & 0 deletions
65
...igning/signing/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/sample_model_folder
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "143cc682e555951649f18e2761c3d526d2502996f5e32dc187ef7f8a614f8df7" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [ | ||
{ | ||
"digest": "fdd8925354242a7fd1515e79534317b800015607a609cd306e0b4dcfe6c92249", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/f00:0:23" | ||
}, | ||
{ | ||
"digest": "e16940b5e44ce981150bda37c4ba95881a749a521b4a297c5cdf97bdcfe965e6", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/f01:0:23" | ||
}, | ||
{ | ||
"digest": "407822246ea8f9e26380842c3f4cd10d7b23e78f1fe7c74c293608682886a426", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d0/f02:0:23" | ||
}, | ||
{ | ||
"digest": "6a3b08b5df77c4d418ceee1ac136a9ad49fc7c41358b5e82c1176daccb21ff3f", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d1/f10:0:23" | ||
}, | ||
{ | ||
"digest": "a484b3d8ea5e99b75f9f123f9a42c882388693edc7d85d82ccba54834712cadf", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d1/f11:0:23" | ||
}, | ||
{ | ||
"digest": "8f577930f5f40c2c2133cb299d36f9527fde98c1608569017cae6b5bcd01abb3", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "d1/f12:0:23" | ||
}, | ||
{ | ||
"digest": "997b37cc51f1ca1c7a270466607e26847429cd7264c30148c1b9352e224083fc", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "f0:0:24" | ||
}, | ||
{ | ||
"digest": "c88a04d48353133fb065ba2c8ab369abab21395b9526aa20373ad828915fa7ae", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "f1:0:24" | ||
}, | ||
{ | ||
"digest": "700e3ba5065d8dd47e41fd928ea086670d628f891ba363be0ca3c31d20d7d719", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "f2:0:24" | ||
}, | ||
{ | ||
"digest": "912bcf5ebdf44dc7b4085b07940e0a81d157fba24b276e73fd911121d4544c4a", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "f3:0:24" | ||
} | ||
] | ||
} | ||
} |
20 changes: 20 additions & 0 deletions
20
...gning/signing/testdata/in_toto/TestDigestOfShardDigestsIntotoPayload/symlink_model_folder
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{ | ||
"_type": "https://in-toto.io/Statement/v1", | ||
"subject": [ | ||
{ | ||
"digest": { | ||
"sha256": "002d162f867c5eee944e5080d25829b6625be0e3f081f6fbafc7dd655ca2e178" | ||
} | ||
} | ||
], | ||
"predicateType": "https://model_signing/DigestOfShardDigests/v0.1", | ||
"predicate": { | ||
"shards": [ | ||
{ | ||
"digest": "3aab065c7181a173b5dd9e9d32a9f79923440b413be1e1ffcdba26a7365f719b", | ||
"algorithm": "file-sha256-1000000", | ||
"name": "symlink_file:0:22" | ||
} | ||
] | ||
} | ||
} |