OCPBUGS-109794: clarify FIPS-approved TLS groups in TLSSecurityProfile docs - #2983
OCPBUGS-109794: clarify FIPS-approved TLS groups in TLSSecurityProfile docs#2983sanchezl wants to merge 3 commits into
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@sanchezl: This pull request references Jira Issue OCPBUGS-109794, which is invalid:
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No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Repository YAML (base), Central YAML (inherited) Review profile: CHILL Plan: Enterprise Run ID: ⛔ Files ignored due to path filters (29)
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Included review availability: Your plan provides up to 12 included reviews per hour; 11 remain after this review. 📝 WalkthroughWalkthroughThe change updates TLS FIPS documentation in API types and generated CRD schemas. It identifies approved NIST P-curves and selected ML-KEM hybrids. It identifies plain X25519 as unapproved. It documents different handling by Go and OpenSSL backends, including dropping or rejecting unsupported groups. Suggested reviewers: Merge Risk: ⚪ Minimal · up to This PR clarifies which TLS groups are FIPS-approved and updates generated descriptions without changing runtime behavior or schemas; no actionable merge-blocking risk remains after normal checks and review. 🚥 Pre-merge checks | ✅ 15✅ Passed checks (15 passed)
Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 1 files. (10 skipped: 10 unsupported.) Full details: Stable And Deterministic Test NamesExplanation PASS: The pull request changes only Go documentation, generated YAML, Swagger, and OpenAPI descriptions. The diff adds no Ginkgo test files or test declarations. Structural searches found no It, Describe, Context, When, or Entry calls in changed Go files, and no dynamic test-title construction. Full details: Test Structure And QualityExplanation PASS: The PR changes only TLS documentation and generated CRD, Swagger, and OpenAPI artifacts. Against the merge base, 40 files changed, with no Full details: Microshift Test CompatibilityExplanation PASS — The pull request adds no Ginkgo e2e tests. The commit changes the TLS documentation source and generated CRD, Swagger, and OpenAPI artifacts only. No changed path is a test path, and no added line contains Full details: Single Node Openshift (Sno) Test CompatibilityExplanation PASS — the pull request adds no Ginkgo e2e tests or other test declarations. The aggregate diff from the PR base (HEAD~3) changes only TLS documentation and generated CRD, Swagger, and OpenAPI files. No added Go lines contain It(), Describe(), Context(), When(), or SNO/topology-related test logic, and no test files are changed. Therefore the SNO multi-node compatibility check is not applicable. Full details: Topology-Aware Scheduling CompatibilityExplanation PASS — The pull request changes TLS documentation only. The hand-written Go diff contains comment changes, and the remaining changes update generated CRD, Swagger, and OpenAPI descriptions. The complete diff adds no deployments, controllers, replicas, affinity, topology spread, node selectors, tolerations, or PDBs. Therefore, it introduces no topology-dependent scheduling constraint. Full details: Ote Binary Stdout ContractExplanation PASS: The pull request changes only TLS documentation and generated description strings. The full diff contains no changes to Full details: Ipv6 And Disconnected Network Test CompatibilityExplanation The pull request adds no Ginkgo e2e tests. The complete PR diff contains only TLS documentation and generated CRD/OpenAPI/Swagger files; it has no test-like paths and no added Full details: No-Weak-CryptoExplanation PASS: The pull request changes TLS documentation and generated descriptions only. The source diff adds comments; it adds no cryptographic implementation, secret comparison, or runtime crypto logic. The added lines introduce none of MD5, SHA1, DES, RC4, 3DES, Blowfish, or ECB. The existing DES-CBC3-SHA entry appears in both the base and HEAD source and is not introduced by this pull request. Full details: Container-PrivilegesExplanation PASS: The pull request changes TLS documentation and generated API descriptions only. The diff from the merge base changes 40 files, with the source change limited to comments in Full details: No-Sensitive-Data-In-LogsExplanation PASS. The PR changes TLS documentation and generated description text only. The diff from the apparent PR base contains no logging calls and no passwords, tokens, API keys, PII, session IDs, hostnames, or customer data. The added Go lines are comments or generated documentation strings; the YAML changes are CRD description text. ✨ Finishing Touches🧪 Generate unit tests (beta)
Warning Some tools did not complete. Review the errors below. 🔧 golangci-lint (2.12.2)Error: build linters: unable to load custom analyzer "kubeapilinter": tools/_output/bin/kube-api-linter.so, plugin: not implemented Comment |
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here. DetailsNeeds approval from an approver in each of these files:Approvers can indicate their approval by writing |
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Actionable comments posted: 1
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Inline comments:
In `@config/v1/types_tlssecurityprofile.go`:
- Around line 18-21: Update the three TLS NamedGroup guidance comments in
config/v1/types_tlssecurityprofile.go at lines 18-21, 173-176, and 281-284 to
state that FIPS-mode support for ML-KEM hybrid groups depends on the
implementation’s provider and validated construction, rather than categorically
excluding them; then run make update-codegen-crds to regenerate the
corresponding comments in
payload-manifests/crds/0000_10_config-operator_01_apiservers-CustomNoUpgrade.crd.yaml
at lines 603-606 and 724-727,
0000_10_config-operator_01_apiservers-Default.crd.yaml at lines 369-372,
0000_10_config-operator_01_apiservers-DevPreviewNoUpgrade.crd.yaml at lines
603-606 and 724-727, 0000_10_config-operator_01_apiservers-OKD.crd.yaml at lines
369-372, 0000_10_config-operator_01_apiservers-TechPreviewNoUpgrade.crd.yaml at
lines 603-606 and 724-727,
0000_80_machine-config_01_kubeletconfigs-CustomNoUpgrade.crd.yaml at lines
189-192 and 310-313, 0000_80_machine-config_01_kubeletconfigs-Default.crd.yaml
at lines 268-271,
0000_80_machine-config_01_kubeletconfigs-DevPreviewNoUpgrade.crd.yaml at lines
189-192 and 310-313, 0000_80_machine-config_01_kubeletconfigs-OKD.crd.yaml at
lines 268-271, and
0000_80_machine-config_01_kubeletconfigs-TechPreviewNoUpgrade.crd.yaml at lines
189-192 and 310-313.
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Fix all unresolved CodeRabbit comments on this PR:
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⚙️ Run configuration
Configuration used: Repository YAML (base), Central YAML (inherited)
Review profile: CHILL
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⛔ Files ignored due to path filters (27)
config/v1/zz_generated.crd-manifests/0000_10_config-operator_01_apiservers-CustomNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*config/v1/zz_generated.crd-manifests/0000_10_config-operator_01_apiservers-Default.crd.yamlis excluded by!**/zz_generated.crd-manifests/*config/v1/zz_generated.crd-manifests/0000_10_config-operator_01_apiservers-DevPreviewNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*config/v1/zz_generated.crd-manifests/0000_10_config-operator_01_apiservers-OKD.crd.yamlis excluded by!**/zz_generated.crd-manifests/*config/v1/zz_generated.crd-manifests/0000_10_config-operator_01_apiservers-TechPreviewNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*config/v1/zz_generated.featuregated-crd-manifests/apiservers.config.openshift.io/AAA_ungated.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**config/v1/zz_generated.featuregated-crd-manifests/apiservers.config.openshift.io/KMSEncryption.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**config/v1/zz_generated.featuregated-crd-manifests/apiservers.config.openshift.io/TLSAdherence.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**config/v1/zz_generated.featuregated-crd-manifests/apiservers.config.openshift.io/TLSGroupPreferences.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**config/v1/zz_generated.swagger_doc_generated.gois excluded by!**/zz_generated*machineconfiguration/v1/zz_generated.crd-manifests/0000_80_machine-config_01_kubeletconfigs-CustomNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*machineconfiguration/v1/zz_generated.crd-manifests/0000_80_machine-config_01_kubeletconfigs-Default.crd.yamlis excluded by!**/zz_generated.crd-manifests/*machineconfiguration/v1/zz_generated.crd-manifests/0000_80_machine-config_01_kubeletconfigs-DevPreviewNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*machineconfiguration/v1/zz_generated.crd-manifests/0000_80_machine-config_01_kubeletconfigs-OKD.crd.yamlis excluded by!**/zz_generated.crd-manifests/*machineconfiguration/v1/zz_generated.crd-manifests/0000_80_machine-config_01_kubeletconfigs-TechPreviewNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*machineconfiguration/v1/zz_generated.featuregated-crd-manifests/kubeletconfigs.machineconfiguration.openshift.io/AAA_ungated.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**machineconfiguration/v1/zz_generated.featuregated-crd-manifests/kubeletconfigs.machineconfiguration.openshift.io/TLSGroupPreferences.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**openapi/generated_openapi/zz_generated.openapi.gois excluded by!openapi/**,!**/zz_generated*openapi/openapi.jsonis excluded by!openapi/**operator/v1/zz_generated.crd-manifests/0000_50_ingress_00_ingresscontrollers-CustomNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*operator/v1/zz_generated.crd-manifests/0000_50_ingress_00_ingresscontrollers-Default.crd.yamlis excluded by!**/zz_generated.crd-manifests/*operator/v1/zz_generated.crd-manifests/0000_50_ingress_00_ingresscontrollers-DevPreviewNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*operator/v1/zz_generated.crd-manifests/0000_50_ingress_00_ingresscontrollers-OKD.crd.yamlis excluded by!**/zz_generated.crd-manifests/*operator/v1/zz_generated.crd-manifests/0000_50_ingress_00_ingresscontrollers-TechPreviewNoUpgrade.crd.yamlis excluded by!**/zz_generated.crd-manifests/*operator/v1/zz_generated.featuregated-crd-manifests/ingresscontrollers.operator.openshift.io/AAA_ungated.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**operator/v1/zz_generated.featuregated-crd-manifests/ingresscontrollers.operator.openshift.io/IngressControllerDynamicConfigurationManager.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**operator/v1/zz_generated.featuregated-crd-manifests/ingresscontrollers.operator.openshift.io/TLSGroupPreferences.yamlis excluded by!**/zz_generated.featuregated-crd-manifests/**
📒 Files selected for processing (11)
config/v1/types_tlssecurityprofile.gopayload-manifests/crds/0000_10_config-operator_01_apiservers-CustomNoUpgrade.crd.yamlpayload-manifests/crds/0000_10_config-operator_01_apiservers-Default.crd.yamlpayload-manifests/crds/0000_10_config-operator_01_apiservers-DevPreviewNoUpgrade.crd.yamlpayload-manifests/crds/0000_10_config-operator_01_apiservers-OKD.crd.yamlpayload-manifests/crds/0000_10_config-operator_01_apiservers-TechPreviewNoUpgrade.crd.yamlpayload-manifests/crds/0000_80_machine-config_01_kubeletconfigs-CustomNoUpgrade.crd.yamlpayload-manifests/crds/0000_80_machine-config_01_kubeletconfigs-Default.crd.yamlpayload-manifests/crds/0000_80_machine-config_01_kubeletconfigs-DevPreviewNoUpgrade.crd.yamlpayload-manifests/crds/0000_80_machine-config_01_kubeletconfigs-OKD.crd.yamlpayload-manifests/crds/0000_80_machine-config_01_kubeletconfigs-TechPreviewNoUpgrade.crd.yaml
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Overall, this seems fine to me. Doing some research the values check out to me, but I'm by no means an expert in the FIPS space nor TLS groups.
@candita Could you, or someone from your team, take a look and make sure that this documentation change makes sense to you all as well?
| Note that only the NIST P-curves (secp256r1, secp384r1, secp521r1) are | ||
| FIPS-approved. X25519 and the ML-KEM post-quantum hybrid groups | ||
| (X25519MLKEM768, SecP256r1MLKEM768, SecP384r1MLKEM1024) are not | ||
| FIPS-approved and are ignored by components running in FIPS mode. |
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This is not quite true. SecP256r1MLKEM768, SecP384r1MLKEM1024 are allowed in FIPS mode on OpenShift. I asked in forum-fips: https://redhat-external.slack.com/archives/CQ7BBRNQN/p1775490088375709?thread_ts=1775340298.286989&cid=CQ7BBRNQN
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@candita I see that I mixed up backend limitations as a statement of FIPS approval. I've reworked the note so only plain X25519 is called not-FIPS-approved and the hybrid situation is described as backend-dependent. I'll be honest that this area is still confusing to me and I'm actively trying to learn it, so please consider the updated godoc as a draft for discussion.
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/assign @Miciah |
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/assign @candita |
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| // Note that only the NIST P-curves (secp256r1, secp384r1, secp521r1) are | ||
| // FIPS-approved. X25519 and the ML-KEM post-quantum hybrid groups | ||
| // (X25519MLKEM768, SecP256r1MLKEM768, SecP384r1MLKEM1024) are not | ||
| // FIPS-approved and are ignored by components running in FIPS mode. |
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@sanchezl This is not quite true. SecP256r1MLKEM768, SecP384r1MLKEM1024 are allowed in FIPS mode on OpenShift. I asked in forum-fips: https://redhat-external.slack.com/archives/CQ7BBRNQN/p1775490088375709?thread_ts=1775340298.286989&cid=CQ7BBRNQN
Only plain X25519 is not FIPS-approved. The ML-KEM hybrids SecP256r1MLKEM768 and SecP384r1MLKEM1024 are FIPS-approved with a validated module (Go 1.26+), and X25519MLKEM768's exclusion is a limitation of today's OpenSSL FIPS backend rather than the algorithm being un-approved (the native Go FIPS module supports it). Describe the hybrid situation as backend-dependent and regenerate the artifacts.
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What
The godoc for
TLSSecurityProfileandTLSGroupsingled out onlyX25519MLKEM768as "a post-quantum hybrid group that is not FIPS-approved and should be ignored by components running in FIPS mode." By naming only that one group, it implied every other listed group — including plain X25519 — is FIPS-approved, which is wrong:secp256r1,secp384r1,secp521r1) are FIPS-approved.X25519is not FIPS-approved — Go's native FIPS module refuses it outright (tls: no supported elliptic curves for ECDHEunderGODEBUG=fips140=on).X25519MLKEM768,SecP256r1MLKEM768,SecP384r1MLKEM1024) are dropped in FIPS mode.This corrects the note wherever it appears so it states plainly that only the NIST P-curves are FIPS-approved, and regenerates the affected artifacts.
Why it matters
The misleading note ships in the generated CRD descriptions for the
groupsfield (behind theTLSGroupPreferencesfeature gate) acrossapiservers,ingresscontrollers, andkubeletconfigs. A cluster admin configuring a Custom TLS profile on a FIPS cluster could reasonably concludeX25519is usable and be surprised when it is filtered/refused. This is documentation-only — runtime behavior already filters correctly (seecrypto.FilterTLSGroups/crypto.IsFIPSApprovedTLSGroupin library-go).Changes
TLSSecurityProfileandTLSGroupgodoc.make update-codegen update-openapi). All generated changes are description-only — no schema, enum, or structural changes.Verification
gofmtclean.make update-codegen update-openapi; zero occurrences of the old wording remain in tracked files.Related