mirror of
https://github.com/shankar0123/certctl.git
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shankar0123
bcefb11e65
Implements Simple Certificate Enrollment Protocol with single-endpoint operation-based dispatch (GetCACaps, GetCACert, PKIOperation), PKCS#7 SignedData CSR extraction with fallback for raw/base64 CSR, challenge password authentication via CSR attributes, and shared internal/pkcs7 package extracted from EST handler to eliminate code duplication. 24 new tests (11 service + 13 handler) plus 5 shared pkcs7 package tests. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
105 lines
2.7 KiB
Go
105 lines
2.7 KiB
Go
package pkcs7
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"math/big"
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"testing"
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"time"
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)
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func generateTestCertPEM(t *testing.T) string {
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t.Helper()
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key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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t.Fatalf("generate key: %v", err)
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}
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template := &x509.Certificate{
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SerialNumber: big.NewInt(1),
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Subject: pkix.Name{CommonName: "Test CA"},
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NotBefore: time.Now().Add(-1 * time.Hour),
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NotAfter: time.Now().Add(24 * time.Hour),
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KeyUsage: x509.KeyUsageCertSign | x509.KeyUsageCRLSign,
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IsCA: true,
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BasicConstraintsValid: true,
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}
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certDER, err := x509.CreateCertificate(rand.Reader, template, template, &key.PublicKey, key)
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if err != nil {
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t.Fatalf("create certificate: %v", err)
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}
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return string(pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: certDER}))
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}
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func TestBuildCertsOnlyPKCS7(t *testing.T) {
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dummyCert := []byte{0x30, 0x82, 0x01, 0x00}
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result, err := BuildCertsOnlyPKCS7([][]byte{dummyCert})
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if err != nil {
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t.Fatalf("BuildCertsOnlyPKCS7 failed: %v", err)
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}
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if len(result) == 0 {
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t.Error("expected non-empty PKCS#7 output")
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}
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if result[0] != 0x30 {
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t.Errorf("expected SEQUENCE tag (0x30), got 0x%02x", result[0])
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}
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}
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func TestBuildCertsOnlyPKCS7_MultipleCerts(t *testing.T) {
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cert1 := []byte{0x30, 0x82, 0x01, 0x00}
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cert2 := []byte{0x30, 0x82, 0x02, 0x00}
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result, err := BuildCertsOnlyPKCS7([][]byte{cert1, cert2})
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if err != nil {
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t.Fatalf("BuildCertsOnlyPKCS7 failed: %v", err)
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}
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if len(result) == 0 {
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t.Error("expected non-empty PKCS#7 output")
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}
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}
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func TestPEMToDERChain_Success(t *testing.T) {
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pemData := generateTestCertPEM(t)
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certs, err := PEMToDERChain(pemData)
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if err != nil {
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t.Fatalf("PEMToDERChain failed: %v", err)
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}
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if len(certs) != 1 {
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t.Errorf("expected 1 cert, got %d", len(certs))
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}
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}
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func TestPEMToDERChain_NoCerts(t *testing.T) {
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_, err := PEMToDERChain("not a PEM")
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if err == nil {
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t.Error("expected error for invalid PEM")
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}
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}
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func TestASN1EncodeLength(t *testing.T) {
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tests := []struct {
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length int
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expected []byte
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}{
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{0, []byte{0x00}},
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{1, []byte{0x01}},
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{127, []byte{0x7f}},
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{128, []byte{0x81, 0x80}},
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{256, []byte{0x82, 0x01, 0x00}},
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}
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for _, tt := range tests {
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result := ASN1EncodeLength(tt.length)
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if len(result) != len(tt.expected) {
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t.Errorf("ASN1EncodeLength(%d): expected %d bytes, got %d", tt.length, len(tt.expected), len(result))
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continue
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}
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for i := range result {
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if result[i] != tt.expected[i] {
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t.Errorf("ASN1EncodeLength(%d): byte %d: expected 0x%02x, got 0x%02x", tt.length, i, tt.expected[i], result[i])
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}
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}
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}
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}
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