05caa959c4
* Make verifiers composable * fix: remove unused code and improve signature verification logic * fix: simplify abstractions and renamed some things * fix: improve tl interface. * fix: sort out signer/verifier
50 lines
1.1 KiB
Rego
50 lines
1.1 KiB
Rego
package attest
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import rego.v1
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keys := [{
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"id": "a0c296026645799b2a297913878e81b0aefff2a0c301e97232f717e14402f3e4",
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"key": "-----BEGIN PUBLIC KEY-----\nMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEgH23D1i2+ZIOtVjmfB7iFvX8AhVN\n9CPJ4ie9axw+WRHozGnRy99U2dRge3zueBBg2MweF0zrToXGig2v3YOrdw==\n-----END PUBLIC KEY-----",
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"from": "2023-12-15T14:00:00Z",
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"to": null,
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"status": "active",
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"signing-format": "dssev1",
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}]
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provs(pred) := p if {
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res := attest.fetch(pred)
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not res.error
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p := res.value
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}
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atts := union({
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provs("https://slsa.dev/provenance/v0.2"),
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provs("https://spdx.dev/Document"),
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})
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opts := {"keys": keys, "skip_tl": false}
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statements contains s if {
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some att in atts
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res := attest.verify(att, opts)
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not res.error
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s := res.value
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}
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subjects contains subject if {
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some statement in statements
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some subject in statement.subject
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}
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result := {
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"success": count(atts) > 0,
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"violations": set(),
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"attestations": statements,
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"summary": {
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"subjects": subjects,
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"slsa_level": "SLSA_BUILD_LEVEL_3",
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"verifier": "docker-official-images",
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"policy_uri": "https://docker.com/official/policy/v0.1",
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},
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}
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