feat: verifyAttestations to registry.manifest

Add support for verifying sigstore attestations when fetching the registry.manifest.
This will be ased in CLI as part of `audit signatures`.

RFC: npm/rfcs#626

Signed-off-by: Philip Harrison <[email protected]>
Co-authored-by: Brian DeHamer <[email protected]>
Signed-off-by: Philip Harrison <[email protected]>

README.md

@@ -172,7 +172,9 @@ resolved, and other properties, as they are determined.
     integrity signature of a manifest, if present.  There must be a
     configured `_keys` entry in the config that is scoped to the
     registry the manifest is being fetched from.
-
+* `verifyAttestations` A boolean that will make pacote verify Sigstore
+    attestations, if present. There must be a configured `_keys` entry in the
+    config that is scoped to the registry the manifest is being fetched from.
 
 ### Advanced API
 

lib/registry.js

@@ -7,6 +7,8 @@ const rpj = require('read-package-json-fast')
 const pickManifest = require('npm-pick-manifest')
 const ssri = require('ssri')
 const crypto = require('crypto')
+const npa = require('npm-package-arg')
+const { sigstore } = require('sigstore')
 
 // Corgis are cute. 🐕🐶
 const corgiDoc = 'application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*'
@@ -203,7 +205,118 @@ class RegistryFetcher extends Fetcher {
           mani._signatures = dist.signatures
         }
       }
+
+      if (dist.attestations) {
+        if (this.opts.verifyAttestations) {
+          // Always fetch attestations from the current registry host
+          const attestationsPath = new URL(dist.attestations.url).pathname
+          const attestationsUrl = removeTrailingSlashes(this.registry) + attestationsPath
+          const res = await fetch(attestationsUrl, {
+            ...this.opts,
+            // disable integrity check for attestations json payload, we check the
+            // integrity in the verification steps below
+            integrity: null,
+          })
+          const { attestations } = await res.json()
+          const bundles = attestations.map(({ predicateType, bundle }) => {
+            const statement = JSON.parse(
+              Buffer.from(bundle.dsseEnvelope.payload, 'base64').toString('utf8')
+            )
+            const keyid = bundle.dsseEnvelope.signatures[0].keyid
+            const signature = bundle.dsseEnvelope.signatures[0].sig
+
+            return {
+              predicateType,
+              bundle,
+              statement,
+              keyid,
+              signature,
+            }
+          })
+
+          const attestationKeyIds = bundles.map((b) => b.keyid).filter((k) => !!k)
+          const attestationRegistryKeys = (this.registryKeys || [])
+            .filter(key => attestationKeyIds.includes(key.keyid))
+          if (!attestationRegistryKeys.length) {
+            throw Object.assign(new Error(
+              `${mani._id} has attestations but no corresponding public key(s) can be found`
+            ), { code: 'EMISSINGSIGNATUREKEY' })
+          }
+
+          for (const { predicateType, bundle, keyid, signature, statement } of bundles) {
+            const publicKey = attestationRegistryKeys.find(key => key.keyid === keyid)
+            // Publish attestations have a keyid set and a valid public key must be found
+            if (keyid) {
+              if (!publicKey) {
+                throw Object.assign(new Error(
+                  `${mani._id} has attestations with keyid: ${keyid} ` +
+                  'but no corresponding public key can be found'
+                ), { code: 'EMISSINGSIGNATUREKEY' })
+              }
+
+              const validPublicKey =
+                !publicKey.expires || (Date.parse(publicKey.expires) > Date.now())
+              if (!validPublicKey) {
+                throw Object.assign(new Error(
+                  `${mani._id} has attestations with keyid: ${keyid} ` +
+                  `but the corresponding public key has expired ${publicKey.expires}`
+                ), { code: 'EEXPIREDSIGNATUREKEY' })
+              }
+            }
+
+            const subject = {
+              name: statement.subject[0].name,
+              sha512: statement.subject[0].digest.sha512,
+            }
+
+            // Only type 'version' can be turned into a PURL
+            const purl = this.spec.type === 'version' ? npa.toPurl(this.spec) : this.spec
+            // Verify the statement subject matches the package, version
+            if (subject.name !== purl) {
+              throw Object.assign(new Error(
+                `${mani._id} package name and version (PURL): ${purl} ` +
+                `doesn't match what was signed: ${subject.name}`
+              ), { code: 'EATTESTATIONSUBJECT' })
+            }
+
+            // Verify the statement subject matches the tarball integrity
+            const integrityHexDigest = ssri.parse(this.integrity).hexDigest()
+            if (subject.sha512 !== integrityHexDigest) {
+              throw Object.assign(new Error(
+                `${mani._id} package integrity (hex digest): ` +
+                `${integrityHexDigest} ` +
+                `doesn't match what was signed: ${subject.sha512}`
+              ), { code: 'EATTESTATIONSUBJECT' })
+            }
+
+            try {
+              // Provenance attestations are signed with a signing certificate
+              // (including the key) so we don't need to return a public key.
+              //
+              // Publish attestations are signed with a keyid so we need to
+              // specify a public key from the keys endpoint: `registry-host.tld/-/npm/v1/keys`
+              const options = { keySelector: publicKey ? () => publicKey.pemkey : undefined }
+              await sigstore.verify(bundle, null, options)
+            } catch (e) {
+              throw Object.assign(new Error(
+                `${mani._id} failed to verify attestation: ${e.message}`
+              ), {
+                code: 'EATTESTATIONVERIFY',
+                predicateType,
+                keyid,
+                signature,
+                resolved: mani._resolved,
+                integrity: mani._integrity,
+              })
+            }
+          }
+          mani._attestations = dist.attestations
+        } else {
+          mani._attestations = dist.attestations
+        }
+      }
     }
+
     this.package = mani
     return this.package
   }

test/fixtures/sigstore/invalid-attestations.json

@@ -0,0 +1,98 @@
+{
+  "attestations": [
+    {
+      "predicateType": "https://slsa.dev/provenance/v0.2",
+      "bundle": {
+        "mediaType": "application/vnd.dev.sigstore.bundle+json;version=0.1",
+        "verificationMaterial": {
+          "x509CertificateChain": {
+            "certificates": [
+              {
+                "rawBytes": "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"
+              },
+              {
+                "rawBytes": "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"
+              },
+              {
+                "rawBytes": "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"
+              }
+            ]
+          },
+          "tlogEntries": [
+            {
+              "logIndex": "10960845",
+              "logId": {
+                "keyId": "wNI9atQGlz+VWfO6LRygH4QUfY/8W4RFwiT5i5WRgB0="
+              },
+              "kindVersion": {
+                "kind": "intoto",
+                "version": "0.0.2"
+              },
+              "integratedTime": "1673458312",
+              "inclusionPromise": {
+                "signedEntryTimestamp": "MEYCIQDzgIQqH7VfIGmZ3wQ7WQ5wnGnhZrv6/3Q90rOK2vsWrgIhAJUvX2WQ/BDp4oti3LEdFzG8KpJIU7sMfSRehK8BRQ+r"
+              },
+              "inclusionProof": null,
+              "canonicalizedBody": "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"
+            }
+          ],
+          "timestampVerificationData": {
+            "rfc3161Timestamps": []
+          }
+        },
+        "dsseEnvelope": {
+          "payload": "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",
+          "payloadType": "application/vnd.in-toto+json",
+          "signatures": [
+            {
+              "sig": "MEQCIBk8ec2/Gm2vSIaYnW5YublLxLctqFWDkUVBhQHhYbkPAiBb1W0l/SyhDL8hRibad9C7f8jwwp9gRaKyaiXd3AH8oQ==",
+              "keyid": ""
+            }
+          ]
+        }
+      }
+    },
+    {
+      "predicateType": "https://github.com/npm/attestation/tree/main/specs/publish/v0.1",
+      "bundle": {
+        "mediaType": "application/vnd.dev.sigstore.bundle+json;version=0.1",
+        "verificationMaterial": {
+          "publicKey": {
+            "hint": "SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA"
+          },
+          "tlogEntries": [
+            {
+              "logIndex": "10960848",
+              "logId": {
+                "keyId": "wNI9atQGlz+VWfO6LRygH4QUfY/8W4RFwiT5i5WRgB0="
+              },
+              "kindVersion": {
+                "kind": "intoto",
+                "version": "0.0.2"
+              },
+              "integratedTime": "1673458314",
+              "inclusionPromise": {
+                "signedEntryTimestamp": "MEQCIEEIjIhzK2F4a9yt9peEarFYCBQETNkLAvHh4Q+suCbvAiAMOAoaKdW/+cU07wHSiG//gSJTeFDB30dl0dSx9dRG4g=="
+              },
+              "inclusionProof": null,
+              "canonicalizedBody": "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"
+            }
+          ],
+          "timestampVerificationData": {
+            "rfc3161Timestamps": []
+          }
+        },
+        "dsseEnvelope": {
+          "payload": "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",
+          "payloadType": "application/vnd.in-toto+json",
+          "signatures": [
+            {
+              "sig": "invalid-signature",
+              "keyid": "SHA256:jl3bwswu80PjjokCgh0o2w5c2U4LhQAE57gj9cz1kzA"
+            }
+          ]
+        }
+      }
+    }
+  ]
+}