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4 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 shankar0123
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21aeed4f4e |
legal: addlicense headers + normalize legacy variants (Phase 0 RED-4)
Phase 0 closure (Path B2, post-rewrite):
addlicense sweep — adds the canonical certctl LLC copyright + BUSL-1.1
SPDX header to every production Go file. Template:
// Copyright 2026 certctl LLC. All rights reserved.
// SPDX-License-Identifier: BUSL-1.1
Coverage: 338 / 338 production Go files (cmd/ + internal/, excluding
*_test.go and **/testdata/**). Pre-sweep coverage was 22 / 338 (6.5%);
post-sweep is 338 / 338 (100%).
Normalized 22 pre-existing legacy headers (`// Copyright (c) certctl`
+ `// SPDX-License-Identifier: BSL-1.1`) and 1 file using a
`Certctl Contributors` attribution. The legacy SPDX ID `BSL-1.1`
is non-standard; the official SPDX identifier for Business Source
License 1.1 is `BUSL-1.1` (capital U). All 338 files now share the
canonical form.
Generated via:
addlicense -c "certctl LLC" -y 2026 \
-f cowork/legal/copyright-header.tpl \
-ignore '**/testdata/**' -ignore '**/*_test.go' \
cmd/ internal/
Verification:
find cmd internal -name '*.go' -not -name '*_test.go' \
-not -path '*/testdata/*' \
-exec grep -L '^// Copyright 2026 certctl LLC' {} \; | wc -l
Returns: 0
gofmt clean. Header additions are comments only, no compile impact.
Closes: cowork/certctl-architecture-diligence-audit.html#fix-RED-4
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shankar0123
|
8b75e0311b |
chore: rename Go module path to github.com/certctl-io/certctl
Mechanical sed across the main go.mod's module declaration, the f5-mock-icontrol
sub-module's go.mod, every Go file's import path (361 files), and a rebuild of
the checked-in f5-mock-icontrol binary so its embedded build-info reflects the
new module path. No behavior change.
Choice B from cowork/transfer-certctl-to-org.md, executed 2026-05-04. Choice A
(keep module path declared as github.com/shankar0123/certctl regardless of
repo URL) shipped on the day of the org transfer (2026-05-03) since we had no
external Go consumers; this commit closes that deferral.
Backward-compat: GitHub HTTP redirects continue to forward
github.com/shankar0123/certctl → github.com/certctl-io/certctl at the URL
level, but Go's module proxy uses the path declared in go.mod as the
canonical name. Pre-fix, anyone trying `go get github.com/certctl-io/certctl/...`
hit a "module path mismatch" error because go.mod said
github.com/shankar0123/certctl and the URL they fetched it from said
certctl-io/certctl. Post-fix, the canonical name and the URL agree, so
go get / go install / external Go consumers / Go-tooling integrations
work cleanly via either the new path (preferred) or the old path (which
redirects and Go follows the redirect for source fetch).
Anyone still importing the old path inside their own code keeps working
provided they update their go.mod's `require` line to match — the module
path declared in their consumer's go.sum / go.mod is the authoritative
import name, so a mass sed across their import statements is the migration
on the consumer side. No external consumers exist today.
Diff shape:
361 *.go files — import path replacement only
2 go.mod — module declaration replacement only
1 binary — deploy/test/f5-mock-icontrol/f5-mock-icontrol rebuilt
so embedded build-info reflects the new path (8618965 vs
8618933 bytes; 32-byte diff is the build-info change)
Total: 364 files, 730 insertions / 730 deletions, net-zero size, pure
mechanical substitution.
Verification:
gofmt: 17 files needed re-alignment after sed (the new path is one char
shorter than the old, so column-aligned import groups drifted). Applied
`gofmt -w` to fix.
go mod tidy: clean exit on both modules.
go vet ./...: clean exit.
go build ./...: clean exit.
go test -short -count=1 on representative packages: all green
(internal/domain, internal/validation, internal/crypto, internal/crypto/signer,
cmd/agent). Test output now reads `ok github.com/certctl-io/certctl/...`
confirming the module path resolves correctly.
binary: f5-mock-icontrol rebuilt; `strings | grep shankar0123` returns
nothing; `strings | grep certctl-io/certctl` shows the new module path
embedded in build-info.
Files intentionally NOT touched in this commit:
README.md / CHANGELOG.md / docs/ / etc. — already swept to certctl-io
URLs in commit
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shankar0123
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b540d4421e |
feat(scep): CertRep PKIMessage response builder (RFC 8894 §3.3.2)
SCEP RFC 8894 + Intune master bundle — Phase 3 of 14.
Implements the SCEP CertRep response builder + wires it into the handler's
RFC 8894 path. After this commit, certctl emits proper CertRep PKIMessage
responses (signed by the RA key, with EnvelopedData encrypting the issued
cert chain to the device's transient signing cert) for both success and
failure outcomes — RFC 8894 §3.3 mandates a PKIMessage response on every
PKIOperation request, including failure cases that carry pkiStatus=2 +
failInfo.
internal/pkcs7/certrep.go (new, ~370 LoC)
* BuildCertRepPKIMessage: assembles the full ContentInfo → SignedData →
{certs, signerInfo, encapContent} structure per RFC 8894 §3.3.2 +
RFC 5652 §5+§6.
* Success path: encrypts the issued cert chain (PKCS#7 certs-only)
INSIDE an EnvelopedData targeting req.SignerCert (the device's
transient cert, NOT the RA cert — response goes back to the device
encrypted with its public key). AES-256-CBC + random 16-byte IV +
PKCS#7 padding + RSA PKCS#1v1.5 keyTrans.
* Failure path: encapContent is empty (no EnvelopedData); the failInfo
auth-attr is populated.
* Pending path: encapContent is empty; client polls via GetCertInitial.
* Auth-attr ordering matches micromdm/scep for byte-level wire-format
diffing (DER SET-OF normalises order anyway, but matching the
reference implementation makes audit + manual inspection easier).
* senderNonce is freshly generated from crypto/rand on every call.
* RA key signs the canonical SET OF Attribute re-serialisation (RFC
5652 §5.4 quirk every CMS implementation hits — wire form is [0]
IMPLICIT but the signature is computed over EXPLICIT SET OF).
* Helper functions: buildCertRepAuthAttrs, buildSignerInfoCertRep,
signCertRep, buildEncapContentInfo, buildEnvelopedDataAES256, all
constructed via this package's existing ASN1Wrap primitives (avoids
asn1.Marshal nuances with nested RawValues — same pattern Phase 2
settled on).
internal/pkcs7/signedinfo.go (1-line tweak)
* ParseSignedData no longer refuses when SignerInfos is empty. The
degenerate certs-only SignedData form (RFC 8894 §3.5.1 GetCACert
response, RFC 7030 EST cacerts, AND now the encrypted certs-only
inner content of the CertRep EnvelopedData) is structurally valid
with zero signers. Caller decides whether the lack of signers is
an error in their context.
internal/pkcs7/certrep_test.go (new, ~230 LoC)
* TestBuildCertRepPKIMessage_Success_RoundTrip — full pipeline
round-trip: build → ParseSignedData → VerifySignature → auth-attr
extractors → ParseEnvelopedData(encapContent) → Decrypt with device
key → ParseSignedData(innerCertsOnly) → assert issued cert CN.
Catches drift between the build-side encoding and the parse-side
decoding.
* TestBuildCertRepPKIMessage_Failure_NoEncapContent — pkiStatus=2 +
failInfo populated; encapContent empty.
* TestBuildCertRepPKIMessage_FreshSenderNonceEachCall — pins the
'never reuse senderNonce' invariant from RFC 8894 §3.2.1.4.5
(replay defense).
* TestBuildCertRepPKIMessage_RejectsNonRSADeviceCert — pins the
RSA-only requirement on the device's transient cert (KTRI requires
RSA pubkey for keyTrans encryption).
* TestBuildCertRepPKIMessage_NilArgs_Refuses.
internal/pkcs7/certrep_fuzz_test.go (new, ~150 LoC)
* FuzzBuildCertRepPKIMessage — varies transactionID + senderNonce +
signerCert; asserts no panic. When build succeeds for the success
path, asserts round-trip soundness (output parses back via
ParseSignedData). 6s seed-corpus run hit no panics.
internal/api/handler/scep.go
* pkiOperation now emits writeCertRepPKIMessage for the RFC 8894
path (both success AND failure). MVP path keeps writeSCEPResponse
for backward compat with lightweight clients.
* tryParseRFC8894 extended to extract the RFC 2985 §5.4.1
challengePassword attribute from the recovered CSR, so the
service-layer's challenge-password gate can run on the RFC 8894
path the same way it does on the MVP path. Returns
(envelope, csrPEM, challengePassword, ok) — was 3-tuple before.
* extractChallengePasswordFromCSR helper mirrors the MVP path's
extractCSRFields logic; same staticcheck SA1019 carve-out for
the deprecated csr.Attributes API (RFC 2985 challengePassword
has no non-deprecated stdlib API per the M-028 audit closure).
* writeCertRepPKIMessage helper wraps pkcs7.BuildCertRepPKIMessage;
on build failure (programmer/config bug) returns HTTP 500 rather
than try a fallback PKIMessage that might re-trigger the same bug.
Verification:
* gofmt + go vet clean across pkcs7 / api/handler.
* go test -short -count=1 green across pkcs7 / api/handler /
api/router / service / cmd/server.
* Coverage: pkcs7 80.5% (was 78.4% before Phase 3). Handler/service
held steady.
* Fuzz seed-corpus (6s): FuzzBuildCertRepPKIMessage — no panic;
round-trip soundness invariant held for every successful build.
Phase 3 of 14 in SCEP RFC 8894 + Intune master bundle.
Living progress at cowork/scep-rfc8894-intune/progress.md.
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shankar0123
|
a546a1bbef |
feat(scep): EnvelopedData decrypt + signerInfo POPO verify (RFC 8894 §3.2)
SCEP RFC 8894 + Intune master bundle — Phase 2 of 14.
Implements the new RFC 8894 PKIMessage parse path: EnvelopedData parser
+ decryptor, signerInfo parser + signature verifier, handler dispatch
that tries the RFC 8894 path FIRST and falls through to the legacy MVP
raw-CSR path on any parse failure. Backward compat with lightweight SCEP
clients is preserved by design — no behavior change for any existing
deploy that doesn't set CERTCTL_SCEP_RA_*.
internal/pkcs7/envelopeddata.go (new, ~330 LoC)
* ParseEnvelopedData: parses CMS EnvelopedData per RFC 5652 §6.1, with
optional outer ContentInfo unwrapping. Handles SET OF RecipientInfo
+ IssuerAndSerial form rid (RFC 8894 §3.2.2).
* EnvelopedData.Decrypt: RSA PKCS#1 v1.5 key-trans + AES-CBC (128/192/
256) or DES-EDE3-CBC content decryption with **constant-time PKCS#7
padding strip** (no branch on padding-byte values; closes the
padding-oracle leak surface). Recipient mismatch is BadMessageCheck
per RFC 8894 §3.3.2.2 (NOT BadCertID); every failure mode returns
the same ErrEnvelopedDataDecrypt sentinel to close timing-leak legs
of Bleichenbacher attacks.
* Equivalent to micromdm/scep's cryptoutil/cryptoutil.go::DecryptPKCS-
Envelope (cited in code comments; not vendored — fuzz-target
ownership stays in this sub-package per the operating rule).
internal/pkcs7/signedinfo.go (new, ~370 LoC)
* ParseSignedData / ParseSignerInfos: parses CMS SignedData per RFC
5652 §5.3. Resolves each SignerInfo's SID (IssuerAndSerial v1 OR
[0] SubjectKeyId v3) against the SignedData certificates SET to
pluck the device's transient signing cert.
* SignerInfo.VerifySignature: re-serialises signedAttrs as the
canonical SET OF Attribute (the RFC 5652 §5.4 quirk every CMS
implementation hits — wire form is [0] IMPLICIT but the signature
is over EXPLICIT SET OF). Hashes with SHA-1/SHA-256/SHA-512 +
verifies via RSA PKCS1v15 or ECDSA per the cert's pubkey type.
* Auth-attr extractors: GetMessageType (PrintableString-decimal),
GetTransactionID, GetSenderNonce, GetMessageDigest. SCEP attr OIDs
pinned (RFC 8894 §3.2.1.4).
internal/pkcs7/{envelopeddata,signedinfo}_fuzz_test.go (new)
* FuzzParseEnvelopedData / FuzzParseSignedData / FuzzParseSignerInfos
/ FuzzVerifySignerInfoSignature — every parser certctl adds gets a
panic-safety fuzzer (the fuzz-target-ownership rule from
cowork/CLAUDE.md::Operating Rules). Local 5s runs hit ~270k
executions per parser without panic. Errors are expected for
arbitrary inputs; only panics are bugs.
internal/pkcs7/{envelopeddata,signedinfo}_test.go (new)
* Round-trip tests that materialise real RSA/ECDSA pairs, hand-build
the wire bytes, parse + decrypt + verify, and assert plaintext /
auth-attr equality. The build helpers use this package's ASN1Wrap
primitives directly (asn1.Marshal of structs containing nested
asn1.RawValue is finicky for mixed Class/Tag); gives byte-level
control matching what real SCEP clients emit.
* Negative tests: tampered ciphertext / tampered auth-attrs / wrong
RA / wrong key / mismatched recipients / random garbage all return
the appropriate sentinel error without panic.
internal/service/scep.go
* PKCSReqWithEnvelope: RFC 8894 envelope-aware variant. Returns
*SCEPResponseEnvelope (not error + *SCEPEnrollResult) because RFC
8894 §3.3 mandates a CertRep PKIMessage on every response, even
failures — the handler shouldn't translate Go errors into SCEP
failInfo codes. Returns nil to signal 'invalid challenge password'
so the caller can translate to HTTP 403 (matches MVP path's wire
shape; RFC 8894 §3.3.1 is silent on this case).
* mapServiceErrorToFailInfo: exact mapping table from the prompt
(CSR parse → BadRequest, CSR sig → BadMessageCheck, crypto policy
→ BadAlg, default → BadRequest).
internal/api/handler/scep.go
* SCEPService interface gains PKCSReqWithEnvelope.
* SCEPHandler now optionally carries an RA cert + key pair. SetRAPair
upgrades the handler to the RFC 8894 path; without that call the
handler stays MVP-only (the v2.0.x behavior).
* pkiOperation: tries the RFC 8894 path FIRST when the RA pair is
set. tryParseRFC8894 helper does the full pipeline (ParseSignedData
→ VerifySignature → extract auth-attrs → ParseEnvelopedData → Decrypt
→ x509.ParseCertificateRequest the recovered bytes). On any failure
it falls through to the legacy extractCSRFromPKCS7 MVP path —
backward compat is non-negotiable.
* Phase 2 emits the legacy certs-only response on RFC 8894 success;
Phase 3 (next commit) swaps in writeCertRepPKIMessage with the
proper status / failInfo / nonce-echo wire shape.
cmd/server/main.go
* Per-profile loop now calls loadSCEPRAPair after preflight to load
the cert + key + inject via SetRAPair. crypto + crypto/tls imports
added.
* loadSCEPRAPair helper: tls.X509KeyPair-based parse + leaf cert
extraction. Failures here indicate TOCTOU between preflight + load.
internal/api/handler/scep_handler_test.go +
internal/api/router/router_scep_profiles_test.go
* mockSCEPService / scepProfileMockService gain PKCSReqWithEnvelope
stubs to satisfy the extended interface. Existing test cases
unchanged (they exercise the MVP path; RA pair is unset).
Verification:
* gofmt + go vet clean for the files I touched.
* go test -short -count=1 green across pkcs7 / api/handler /
api/router / service / cmd/server.
* Coverage: pkcs7 78.4% (was 100% — drops because new code includes
paths the round-trip tests don't yet hit, like decryption alg
fall-through and v3 SubjectKeyId SID matching).
* Fuzz-target seed-corpus runs (5s each, ~270k execs/parser): no
panic. Pre-merge fuzz-time bumps to 30s per the prompt's
verification gate.
Phase 2 of 14 in SCEP RFC 8894 + Intune master bundle.
Living progress at cowork/scep-rfc8894-intune/progress.md.
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