mirror of
https://github.com/shankar0123/certctl.git
synced 2026-06-07 15:51:30 +00:00
shankar0123
21aeed4f4e
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
72 lines
2.8 KiB
Go
72 lines
2.8 KiB
Go
// Copyright 2026 certctl LLC. All rights reserved.
|
|
// SPDX-License-Identifier: BUSL-1.1
|
|
|
|
package signer
|
|
|
|
import (
|
|
"crypto"
|
|
"encoding/pem"
|
|
"fmt"
|
|
|
|
"crypto/x509"
|
|
)
|
|
|
|
// parsePrivateKey parses a PEM block into a crypto.Signer. Recognises the
|
|
// three PEM block types historically produced and consumed by certctl's
|
|
// local CA:
|
|
//
|
|
// - "RSA PRIVATE KEY" (PKCS#1 / RFC 3447, openssl genrsa default)
|
|
// - "EC PRIVATE KEY" (SEC 1 / RFC 5915, openssl ecparam default)
|
|
// - "PRIVATE KEY" (PKCS#8 / RFC 5208 — wraps RSA, ECDSA, others)
|
|
//
|
|
// This function is the single source of truth for PEM private-key parsing
|
|
// inside certctl. It was moved here from
|
|
// internal/connector/issuer/local/local.go as part of the Signer
|
|
// abstraction work; the local package now calls into here. Do not
|
|
// reintroduce a parallel implementation elsewhere.
|
|
//
|
|
// Behavior preserved exactly across the move:
|
|
// - Block type matching is case-sensitive (PEM convention).
|
|
// - PKCS#8 blocks that contain a non-Signer key (e.g., a Diffie-Hellman
|
|
// key, an Ed25519 key absent stdlib Signer support) return an error
|
|
// rather than a panic.
|
|
// - The error wrapping format is intentionally stable so existing test
|
|
// assertions in internal/connector/issuer/local/local_test.go and
|
|
// bundle9_coverage_test.go continue to match without modification.
|
|
func parsePrivateKey(block *pem.Block) (crypto.Signer, error) {
|
|
switch block.Type {
|
|
case "RSA PRIVATE KEY":
|
|
return x509.ParsePKCS1PrivateKey(block.Bytes)
|
|
case "EC PRIVATE KEY":
|
|
return x509.ParseECPrivateKey(block.Bytes)
|
|
case "PRIVATE KEY":
|
|
// PKCS#8 — can contain RSA or ECDSA
|
|
key, err := x509.ParsePKCS8PrivateKey(block.Bytes)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to parse PKCS#8 key: %w", err)
|
|
}
|
|
signer, ok := key.(crypto.Signer)
|
|
if !ok {
|
|
return nil, fmt.Errorf("PKCS#8 key is not a signing key")
|
|
}
|
|
return signer, nil
|
|
default:
|
|
return nil, fmt.Errorf("unsupported private key type: %s (expected RSA PRIVATE KEY, EC PRIVATE KEY, or PRIVATE KEY)", block.Type)
|
|
}
|
|
}
|
|
|
|
// ParsePrivateKey is the exported wrapper used by callers outside this
|
|
// package. It exists so that internal/connector/issuer/local/ (and any
|
|
// future caller that needs to load a PEM private key without going
|
|
// through a Driver — e.g., a one-off tool, a migration helper) can
|
|
// share the parser without re-implementing the block-type dispatch.
|
|
//
|
|
// Most callers should use a Driver instead — Driver.Load handles the
|
|
// file-read + PEM decode + key parse + Signer wrap in one call.
|
|
// ParsePrivateKey is exposed for the corner cases where a caller
|
|
// already holds the *pem.Block (e.g., the block was extracted from a
|
|
// multi-block PEM bundle).
|
|
func ParsePrivateKey(block *pem.Block) (crypto.Signer, error) {
|
|
return parsePrivateKey(block)
|
|
}
|