Prepare signed lifecycle runtime admission and receipt verification
Assistant: codex Assistant-Model: gpt-6-astra Assistant-Session: 01a140c4-354a-7823-8f0d-8f717397f786
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parent
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9 changed files with 364 additions and 3 deletions
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@ -51,7 +51,7 @@ jobs:
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SHORT="${REF:0:7}"
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mkdir -p buildctx "${HOME}/bin"
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wget -qO /tmp/repo.tar.gz \
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"https://forgejo.coulomb.social/${GITHUB_REPOSITORY}/archive/${SHORT}.tar.gz"
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"https://forgejo.coulomb.social/${GITHUB_REPOSITORY}/archive/${REF}.tar.gz"
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tar xzf /tmp/repo.tar.gz -C buildctx --strip-components=1
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wget -qO- https://download.docker.com/linux/static/stable/x86_64/docker-27.3.1.tgz \
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| tar xz --strip-components=1 -C "${HOME}/bin" docker/docker
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@ -83,6 +83,8 @@ spec:
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{{- if not (and .Values.readback .Values.readback.enabled) }}
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{{- $binding = required "callerAuth.binding is required when callerAuth.mode is warn or enforce" .Values.callerAuth.binding }}
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{{- end }}
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- --caller-audience
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- {{ required "callerAuth.audience is required" .Values.callerAuth.audience | quote }}
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- --caller-auth-mode
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- {{ include "flex-auth.callerAuth.mode" . | quote }}
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- --caller-kubernetes-url
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68
docs/native-signer-workload.json
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68
docs/native-signer-workload.json
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@ -0,0 +1,68 @@
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{
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"schema": "access-engine.signer-workload-reference.v1",
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"owner_repo": "access-engine",
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"existing_workload": "flex-auth",
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"authoritative_owner_declaration": "tenancy.yaml#/workload_identity",
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"exact_signer_identity_binding": "system:serviceaccount:flex-auth:flex-auth-secrets-engine",
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"declaration_scope": "Existing retained Secrets lifecycle PDP pin; declaration of identity source only. Not a new managed workload, credential grant, zone promotion or live admission.",
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"observed_runtime": {
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"cluster": "railiance01",
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"node_internal_ip": "92.205.62.239",
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"namespace": "flex-auth",
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"release": "flex-auth-secrets-engine",
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"deployment": "flex-auth-secrets-engine",
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"reviewer_service_account": "flex-auth-secrets-engine",
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"source_evidence": "the-custodian/docs/changes/netkingdom-target-2026-10-16/access-native-preparation/live-metadata-r1.json",
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"evidence_sha256": "bafce991e02083ac30c8d6ce15f037dc22087bbb5dc8185c472149b46bca47c2"
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},
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"identity_roles": {
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"signer_workload": "system:serviceaccount:flex-auth:flex-auth-secrets-engine",
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"requesting_consumer": "system:serviceaccount:secrets-engine:secrets-engine",
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"retained_caller_audience": "flex-auth",
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"rule": "Signer custody binds the PDP workload, not the consumer or a human approver. Existing TokenReview reviewer projection does not grant signing-key custody."
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},
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"custody_reference": {
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"catalog_id": "flex-auth-decision-envelope-signing-key",
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"owner_repo": "railiance-platform",
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"current_state": "draft/nonresolvable",
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"proposed_source_path": "platform/workloads/flex-auth/envelope-signing",
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"proposed_private_field": "ED25519_PRIVATE_KEY",
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"required_encoding": "unpadded base64url 32-byte Ed25519 seed; mount0440 allowed, group-write and world permissions refused",
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"public_fields": [
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"ED25519_PUBLIC_KEY",
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"kid"
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],
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"proposed_catalog_workload_reference": {
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"name": "flex-auth",
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"declaration_ref": "access-engine/tenancy.yaml#/workload_identity",
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"exact_binding": "system:serviceaccount:flex-auth:flex-auth-secrets-engine",
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"resolution": "unknown until owner custody and managed-package admission; do not mark resolvable merely from source binding"
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},
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"key_created_or_admitted": false
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},
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"managed_package_limit": {
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"rapp_declaration_ref": null,
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"status": "Existing managed-deployable migration debt remains unknown under security-zones_v0.1 \u00a76; no matching authoritative rapp declaration was established. Existing source tenancy declaration supplies owner identity binding but cannot substitute for managed-package admission.",
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"no_fiction": "Do not invent a rapp tuple or describe this Helm-managed Deployment as an independent operational unit to bypass the rule."
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},
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"unchanged_limits": [
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"tenancy and zones grades are unchanged",
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"service-pilot literal false gate unchanged",
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"human variant unchanged",
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"legacy twelve lifecycle actions remain the selected policy package",
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"no signer Secret name, kid, public fingerprint, custody receipt or rollout permission is supplied"
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],
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"consumer_admission": "Secrets owner independently admits public keys/pins and exact installed verifier; this file never bootstraps trust from PDP discovery.",
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"native_tool": {
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"path": "tools/verify_native_signer_receipt.py",
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"requires": "Installed reviewed Secrets Engine package/helper and independent public admission; source request, authenticated response and original source record for one allow and one deny.",
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"operation": "Offline captured receipt checks only, no network/token input/key build or protected effect. Current clock validation; no CLI backdating option.",
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"result_limits": "Does not prove record durability, real rejected HTTP caller, audit receiver custody, rotation, or authorization to run effect."
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},
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"ci": {
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"trigger": "Existing ordinary push to main when .forgejo/workflows/image.yaml, Containerfile, cmd/**, internal/**, pkg/**, examples/**, go.mod/go.sum or tools/publish-runtime-images.sh changes; workflow_dispatch also exists. This patch changes the workflow, so an authorized push would trigger it.",
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"scope": "Existing container-build runner and already admitted forgejo.coulomb.social/coulomb/flex-auth package only in legacy mode; paired access-engine package publication requires separate existing dispatch authority and is excluded.",
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"provenance_preparation": "Download archive/${REF}.tar.gz using full validated GITHUB_SHA; existing publisher labels org.opencontainers.image.revision and reads back registry manifest digest.",
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"not_invoked": "No push, workflow dispatch, Docker build, image publication or paid resource allocation in this source preparation."
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}
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}
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@ -0,0 +1,17 @@
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{
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"schema": "access-engine.signer-receipt-check.v1",
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"trust_file": "/absolute/owner-admitted/public-trust.json",
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"verifier": "/absolute/installed/secrets-engine-pdp-verify",
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"verifier_sha256": "REPLACE_WITH_INDEPENDENTLY_REVIEWED_INSTALLED_HELPER_SHA256",
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"allow_request": "/absolute/sanitized-native-receipts/allow-request.json",
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"allow_envelope": "/absolute/sanitized-native-receipts/allow-envelope.json",
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"allow_record": "/absolute/sanitized-native-receipts/allow-source-record.json",
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"deny_request": "/absolute/sanitized-native-receipts/deny-request.json",
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"deny_envelope": "/absolute/sanitized-native-receipts/deny-envelope.json",
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"deny_record": "/absolute/sanitized-native-receipts/deny-source-record.json",
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"expected_caller": {
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"mode": "enforce",
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"principal": "system:serviceaccount:secrets-engine:secrets-engine",
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"audience": "flex-auth"
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}
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}
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10
tenancy.yaml
10
tenancy.yaml
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@ -11,8 +11,16 @@ role: policy-decision-point
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workload_identity:
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name: flex-auth
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kind: platform-service
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responsible_repo: flex-auth
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responsible_repo: access-engine
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identity_bindings:
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# Existing retained Secrets PDP pin; identity source, not key admission.
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- scheme: kubernetes-service-account
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authority: railiance01
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subject: system:serviceaccount:flex-auth:flex-auth-secrets-engine
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principal_type: service
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environment: prod
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evidence:
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- docs/native-signer-workload.json
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- scheme: kubernetes-service-account
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authority: railiance01
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subject: system:serviceaccount:flex-auth:flex-auth-ops-warden
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100
tests/test_native_signer_receipt.py
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100
tests/test_native_signer_receipt.py
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@ -0,0 +1,100 @@
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"""Offline tool regression using the producer's existing synthetic signer only."""
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import copy
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from datetime import datetime,timedelta,timezone
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import hashlib
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import importlib.util
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import json
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import os
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from pathlib import Path
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import subprocess
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import tempfile
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import unittest
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from unittest import mock
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ROOT=Path(__file__).resolve().parents[1]
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@unittest.skipUnless(os.environ.get('SECRETS_ENGINE_SOURCE_ROOT'), 'requires reviewed Secrets consumer source/bundle for integration checks')
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class NativeSignerReceiptTests(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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global MODULE
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spec=importlib.util.spec_from_file_location('signer_receipt',ROOT/'tools/verify_native_signer_receipt.py')
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MODULE=importlib.util.module_from_spec(spec);spec.loader.exec_module(MODULE)
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consumer=Path(os.environ['SECRETS_ENGINE_SOURCE_ROOT'])
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cls.scratch=tempfile.TemporaryDirectory();cls.base=Path(cls.scratch.name)
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env={**os.environ,'GOFLAGS':'-buildvcs=false'}
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cls.verifier=cls.base/'verify';cls.signer=cls.base/'synthetic-sign'
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for binary,package in [(cls.verifier,'.'),(cls.signer,'./testsupport/signer')]:
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subprocess.run(['go','build','-p','2','-o',str(binary),package],cwd=consumer/'verifier',env=env,check=True)
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cls.now=datetime.now(timezone.utc)
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env=json.loads((consumer/'tests/fixtures/pdp-signature/decision_rotate_signed.json').read_text())
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env['provenance']['caller']={'mode':'enforce','principal':'system:serviceaccount:secrets-engine:secrets-engine','audience':'flex-auth','not_after':(cls.now+timedelta(minutes=20)).isoformat()}
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env['lifetime']['not_before']=(cls.now-timedelta(seconds=1)).isoformat();env['lifetime']['expires_at']=(cls.now+timedelta(minutes=15)).isoformat()
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def sign(envelope):
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return json.loads(subprocess.check_output([str(cls.signer)],input=json.dumps(envelope).encode()))
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env['diagnostics']['target']={'phase':{'uses':1}}
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cls.allow=sign(env)
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req=json.loads((ROOT/'examples/secrets-engine/check_request_allow_rotate.json').read_text())
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(cls.base/'allow-request.json').write_text(json.dumps(req))
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denied=copy.deepcopy(req);denied['action']='execute-ccr'
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cls.deny=copy.deepcopy(env);cls.deny['effect']='deny';cls.deny['binding']['action']='execute-ccr';cls.deny['binding']['submitted_request_digest']=MODULE.request_digest(denied);cls.deny=sign(cls.deny)
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(cls.base/'deny-request.json').write_text(json.dumps(denied))
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provenance=cls.allow['provenance'];cls.trust={key:provenance[key] for key in ('evaluator','mode','policy_package','policy_version','policy_package_digest')}
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cls.trust.update(schema='secrets-engine.pdp-trust.v1',keys={'testdata-ed25519':'IVL40Zt5HSRFMkLhXy6rbLfP-ntqXtMAl5YOBpiB2xI'})
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@classmethod
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def tearDownClass(cls):cls.scratch.cleanup()
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def setUp(self):
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for label,envelope in [('allow',self.allow),('deny',self.deny)]:
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for kind in ('envelope','record'):(self.base/f'{label}-{kind}.json').write_text(json.dumps(envelope))
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(self.base/'trust.json').write_text(json.dumps(self.trust))
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self.config={'schema':'access-engine.signer-receipt-check.v1','trust_file':str(self.base/'trust.json'),'verifier':str(self.verifier),'verifier_sha256':hashlib.sha256(self.verifier.read_bytes()).hexdigest(),'expected_caller':{'mode':'enforce','principal':'system:serviceaccount:secrets-engine:secrets-engine','audience':'flex-auth'}}
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for label in ('allow','deny'):
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for kind in ('request','envelope','record'):self.config[f'{label}_{kind}']=str(self.base/f'{label}-{kind}.json')
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def test_genuine_signed_receipt_and_refusal_matrix(self):
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result=MODULE.verify(self.config,now=self.now)
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self.assertTrue(all(result['checks'].values()));self.assertEqual(len(result['checks']),7)
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def test_changed_source_record_refuses(self):
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record=copy.deepcopy(self.allow);record['effect']='deny';(self.base/'allow-record.json').write_text(json.dumps(record))
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with self.assertRaises(ValueError):MODULE.verify(self.config,now=self.now)
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def test_nested_record_number_type_change_refuses(self):
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for replacement in (True,1.0):
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with self.subTest(replacement_type=type(replacement).__name__):
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record=copy.deepcopy(self.allow)
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record['diagnostics']['target']['phase']['uses']=replacement
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(self.base/'allow-record.json').write_text(json.dumps(record))
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with self.assertRaises(ValueError):MODULE.verify(self.config,now=self.now)
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def test_receipt_hashes_use_the_once_read_verified_bytes(self):
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actual_read=MODULE.read
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seen={}
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original={str(self.base/f'{label}-{suffix}.json'):actual_read(str(self.base/f'{label}-{suffix}.json')) for label in ('allow','deny') for suffix in ('request','envelope','record')}
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def once(path):
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if path in original:
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seen[path]=seen.get(path,0)+1
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self.assertEqual(seen[path],1,'receipt was reopened after verification')
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return actual_read(path)
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with mock.patch.object(MODULE,'read',side_effect=once):
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result=MODULE.verify(self.config,now=self.now)
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self.assertEqual(len(seen),6)
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for label in ('allow','deny'):
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for suffix in ('request','envelope','record'):
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self.assertEqual(result['input_sha256'][label+'_'+suffix],hashlib.sha256(original[str(self.base/f'{label}-{suffix}.json')]).hexdigest())
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def test_oversized_file_read_is_bounded(self):
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stream=mock.MagicMock();stream.__enter__.return_value=stream;stream.read.return_value=b'x'*524289
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with mock.patch.object(Path,'open',return_value=stream):
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with self.assertRaises(ValueError):MODULE.read('/absolute/oversized.json')
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stream.read.assert_called_once_with(524289)
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def test_unadmitted_helper_digest_refuses(self):
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self.config['verifier_sha256']='0'*64
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with self.assertRaises(ValueError):MODULE.verify(self.config,now=self.now)
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def test_disabled_caller_admission_refuses(self):
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self.config['expected_caller']['mode']='disabled'
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with self.assertRaises(ValueError):MODULE.verify(self.config,now=self.now)
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def test_expired_captured_allow_refuses(self):
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with self.assertRaises(MODULE.DecisionError):MODULE.verify(self.config,now=self.now+timedelta(minutes=16))
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def test_wrong_independent_policy_pin_refuses(self):
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wrong=copy.deepcopy(self.trust);wrong['policy_package_digest']='sha256:'+'0'*64;(self.base/'trust.json').write_text(json.dumps(wrong))
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with self.assertRaises(MODULE.DecisionError):MODULE.verify(self.config,now=self.now)
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if __name__=='__main__':unittest.main()
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135
tools/verify_native_signer_receipt.py
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135
tools/verify_native_signer_receipt.py
Normal file
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#!/usr/bin/env python3
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"""Verify captured native decision receipts with the installed Secrets verifier.
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Offline only: no token input, network request, key generation, build or effect.
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Use an independently reviewed admission file; success never admits that file.
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"""
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from __future__ import annotations
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import argparse
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import copy
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from datetime import datetime, timezone
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import hashlib
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import json
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from pathlib import Path
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import re
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# These are the consumer's existing verifier/binding functions, not another PDP
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# or signature/canonicalization implementation. Install the reviewed bundle first.
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from secrets_engine.authorization import request_digest, validate_decision_envelope
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from secrets_engine.decision_signature import authenticate_response, load_trust, strict_json
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from secrets_engine.errors import DecisionError
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FIELDS = {'schema','trust_file','verifier','verifier_sha256','allow_request','allow_envelope','allow_record','deny_request','deny_envelope','deny_record','expected_caller'}
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def read(path: str) -> bytes:
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target = Path(path)
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if not target.is_absolute():
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raise ValueError('absolute input path required')
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with target.open("rb") as stream:
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data = stream.read(524289)
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if len(data) > 524288:
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raise ValueError('receipt input too large')
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return data
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def same_json_types(left, right) -> bool:
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"""JSON value correspondence only; never signature canonicalization."""
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if type(left) is not type(right):
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return False
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if isinstance(left, dict):
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return left.keys() == right.keys() and all(same_json_types(value,right[key]) for key,value in left.items())
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if isinstance(left, list):
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return len(left) == len(right) and all(same_json_types(a,b) for a,b in zip(left,right))
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return left == right
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def stamp(value: str) -> datetime:
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parsed = datetime.fromisoformat(value.replace('Z','+00:00'))
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if parsed.tzinfo is None:
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raise ValueError('timezone required')
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return parsed.astimezone(timezone.utc)
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def verify(config: dict, *, now: datetime | None = None) -> dict:
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if not isinstance(config,dict) or set(config) != FIELDS or config['schema'] != 'access-engine.signer-receipt-check.v1':
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raise ValueError('unsupported admission fields')
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current = now or datetime.now(timezone.utc)
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caller = config['expected_caller']
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if caller != {'mode':'enforce','principal':'system:serviceaccount:secrets-engine:secrets-engine','audience':'flex-auth'}:
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raise ValueError('retained native caller admission required')
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executable = Path(config['verifier'])
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if not executable.is_absolute() or not re.fullmatch('[a-f0-9]{64}',config['verifier_sha256']) or hashlib.sha256(executable.read_bytes()).hexdigest() != config['verifier_sha256']:
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raise ValueError('installed verifier digest mismatch')
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trust_bytes = read(config['trust_file'])
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trust = load_trust(Path(config['trust_file']))
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if not same_json_types(trust,strict_json(trust_bytes)):
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raise ValueError('trust input changed during verification')
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if (trust['evaluator'],trust['mode'],trust['policy_package'],trust['policy_version']) != ('flex-auth/local','standalone','secrets-engine.catalog-lane.lifecycle','v2'):
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raise ValueError('signer-only lifecycle package required')
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checks = {}
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envelopes = {}
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inputs = {}
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requests = {}
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for label in ('allow','deny'):
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blobs = {suffix:read(config[label+'_'+suffix]) for suffix in ('request','envelope','record')}
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body = blobs['envelope']
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# Strict decode before helper; authenticated typed return alone is acted on.
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strict_json(body.decode('utf-8'))
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envelope = authenticate_response(body,trust=trust,verifier=executable)
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request = strict_json(blobs['request'])
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record = strict_json(blobs['record'])
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if not same_json_types(record,envelope):
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raise ValueError('captured original source record differs from authenticated response')
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provenance = envelope['provenance']['caller']
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if any(provenance.get(key) != value for key,value in caller.items()) or stamp(provenance['not_after']) <= current:
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raise ValueError('native caller provenance missing or expired')
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if label == 'allow':
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validate_decision_envelope(envelope,request,accepted_policy_packages={trust['policy_package']},accepted_policy_versions={trust['policy_version']},now=current)
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||||
else:
|
||||
if envelope['effect'] != 'deny' or envelope['binding']['submitted_request_digest'] != request_digest(request):
|
||||
raise ValueError('deny receipt does not bind exact negative request')
|
||||
envelopes[label] = envelope
|
||||
requests[label] = request
|
||||
for suffix in ('request','envelope','record'):
|
||||
inputs[label+'_'+suffix] = hashlib.sha256(blobs[suffix]).hexdigest()
|
||||
checks[label+'_authenticated_bound_and_record_matched'] = True
|
||||
# These are local refusals against the captured real producer envelope. They
|
||||
# do not claim a rejected caller was exercised on the native HTTP endpoint.
|
||||
for label in ('altered','unsigned','unknown_kid','wrong_policy_pin'):
|
||||
bad = copy.deepcopy(envelopes['allow']); pins = copy.deepcopy(trust)
|
||||
if label == 'altered': bad['binding']['action'] = 'forged-action'
|
||||
elif label == 'unsigned': bad['signature'] = {'mode':'unsigned'}
|
||||
elif label == 'unknown_kid': bad['signature']['kid'] = 'unadmitted-key'
|
||||
else: pins['policy_package_digest'] = 'sha256:'+'0'*64
|
||||
try:
|
||||
authenticate_response(json.dumps(bad).encode(),trust=pins,verifier=executable)
|
||||
except DecisionError:
|
||||
checks[label+'_refused'] = True
|
||||
else:
|
||||
raise ValueError('negative authentication case accepted')
|
||||
try:
|
||||
expiry=stamp(envelopes['allow']['lifetime']['expires_at'])
|
||||
request=requests['allow']
|
||||
validate_decision_envelope(envelopes['allow'],request,accepted_policy_packages={trust['policy_package']},accepted_policy_versions={trust['policy_version']},now=expiry)
|
||||
except DecisionError:
|
||||
checks['expiry_boundary_refused'] = True
|
||||
else:
|
||||
raise ValueError('expired allow accepted')
|
||||
return {'schema':'access-engine.signer-receipt-result.v1','checks':checks,'input_sha256':inputs,'verifier_sha256':config['verifier_sha256'],'trust_file_sha256':hashlib.sha256(trust_bytes).hexdigest(),'boundary':'offline captured signed receipt checks only; no native caller-denial, record durability, receiver custody, trust admission, rotation or protected effect inferred'}
|
||||
|
||||
def main() -> int:
|
||||
parser=argparse.ArgumentParser(description=__doc__)
|
||||
parser.add_argument('--admission',type=Path,required=True)
|
||||
parser.add_argument('--output',type=Path,required=True)
|
||||
args=parser.parse_args()
|
||||
try:
|
||||
config=strict_json(read(str(args.admission)))
|
||||
result=verify(config)
|
||||
args.output.write_text(json.dumps(result,indent=2)+'\n')
|
||||
except (OSError,ValueError,TypeError,KeyError,RecursionError,DecisionError):
|
||||
# Never dump source objects, unexpected key material or verifier stderr.
|
||||
print('signer receipt verification refused')
|
||||
return 1
|
||||
print('captured signer receipt checks passed')
|
||||
return 0
|
||||
|
||||
if __name__ == '__main__':
|
||||
raise SystemExit(main())
|
||||
|
|
@ -13,6 +13,8 @@ args:
|
|||
- /opt/flex-auth/examples/secrets-engine/policy_package.md
|
||||
callerAuth:
|
||||
mode: enforce
|
||||
# Retained runtime audience is explicit; signer preparation does not rename it.
|
||||
audience: flex-auth
|
||||
kubernetesURL: https://10.43.0.1
|
||||
binding: secrets-engine=system:serviceaccount:secrets-engine:secrets-engine
|
||||
consumer:
|
||||
|
|
|
|||
|
|
@ -184,7 +184,7 @@ This is source preparation only, not signer admission or deployed acceptance.
|
|||
|
||||
```task
|
||||
id: FLEX-WP-0024-T06
|
||||
status: wait
|
||||
status: progress
|
||||
priority: high
|
||||
```
|
||||
|
||||
|
|
@ -197,3 +197,32 @@ then update actual deployed status. No signer or runtime trust is admitted by th
|
|||
source review. This task owns the producer-side native gate; SECRETS-WP-0014 owns
|
||||
consumer admission/enforcement. The old fixture completion never established this
|
||||
gate, so the workplan is reopened rather than claiming it already passed.
|
||||
|
||||
|
||||
2026-10-16 owner native preparation: T06 is `progress` because Access still owns
|
||||
signer workload declaration, artifact/provenance and source/provider-join preparation;
|
||||
no unqualified cross-owner wait is claimed. Read-only actual release metadata and
|
||||
bounded proposal are in the Custodian
|
||||
`docs/changes/netkingdom-target-2026-10-16/access-native-preparation/`.
|
||||
The real Platform custody route `flex-auth-decision-envelope-signing-key` exists but
|
||||
is draft/nonresolvable; no production kid/public fingerprint, Secret projection or
|
||||
custody receipt is admitted. Coordinate that named commitment through CUST-WP-0080
|
||||
instead of inventing a Platform task/approval. SECRETS-WP-0014-T03 owns installed
|
||||
consumer native verification and must not form a circular blocking dependency.
|
||||
|
||||
The first proposed native trial only signs the unchanged lifecycle package on the
|
||||
existing retained release; `execute-ccr` remains denied. Current service-pilot
|
||||
`runtime_admission := false` remains mandatory: the source ServicePilotInputs is
|
||||
not yet wired into HTTP, and public service_actor_binding never authenticates the
|
||||
caller. Later activation needs a complete reviewed provider join, exact policy and
|
||||
operation admission, artifact digests, owner execution/rollback proposal and native
|
||||
receipts. Preparation/local synthetic success grants none of those permissions.
|
||||
|
||||
|
||||
2026-10-16 source-only native preparation adds the existing Secrets PDP ServiceAccount
|
||||
to `tenancy.yaml` with evidence in `docs/native-signer-workload.json`, makes the
|
||||
retained `flex-auth` audience explicit, pins CI archive fetch to the full source
|
||||
revision, and adds offline native signer receipt verification using the existing
|
||||
Secrets verifier. No key, trust, image publication or live activation is admitted.
|
||||
The managed workload's missing rapp declaration remains explicit migration debt;
|
||||
this source binding does not fabricate a package declaration or raise its grade.
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue