}
	if len(ids) != 1 {
		return nil, fmt.Errorf("expect single id from the cert, found %v", ids)
	}

	opts := &CertOptions{
		Host:      ids[0],
		Org:       b.cert.Issuer.Organization[0],
		IsCA:      b.cert.IsCA,
		TTL:       b.cert.NotAfter.Sub(b.cert.NotBefore),
		IsDualUse: ids[0] == b.cert.Subject.CommonName,
	}

	switch (*b.privKey).(type) {
	case *rsa.PrivateKey:
		size, err := GetRSAKeySize(*b.privKey)

	}
	googChain := c.ConnectionState().PeerCertificates

	rootTmpl := &x509.Certificate{
		SerialNumber:          big.NewInt(1),
		Subject:               pkix.Name{CommonName: "Go test root"},
		IsCA:                  true,
		BasicConstraintsValid: true,
		NotBefore:             time.Now().Add(-time.Hour),
		NotAfter:              time.Now().Add(time.Hour * 10),
	}
	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)

	UnknownExtKeyUsage []asn1.ObjectIdentifier // Encountered extended key usages unknown to this package.

	// BasicConstraintsValid indicates whether IsCA, MaxPathLen,
	// and MaxPathLenZero are valid.
	BasicConstraintsValid bool
	IsCA                  bool

	// MaxPathLen and MaxPathLenZero indicate the presence and
	// value of the BasicConstraints' "pathLenConstraint".
	//

		NotBefore:             notBefore,
		NotAfter:              notAfter,
		KeyUsage:              keyUsage,
		ExtKeyUsage:           cfg.Usages,
		BasicConstraintsValid: true,
		IsCA:                  isCA,
	}
	certDERBytes, err := x509.CreateCertificate(cryptorand.Reader, &certTmpl, caCert, key.Public(), caKey)
	if err != nil {
		return nil, err
	}
	return x509.ParseCertificate(certDERBytes)
}

	}
	// Validate period
	CheckCertificatePeriodValidity(baseName, caCert)

	// Make sure the loaded CA cert actually is a CA
	if !caCert.IsCA {
		return nil, nil, errors.Errorf("%s certificate is not a certificate authority", baseName)
	}

	return caCert, caKey, nil
}

			pkiCaLog.Infof("CASecret %s not found, will create one", caCertName)
			options := util.CertOptions{
				TTL:          caCertTTL,
				Org:          org,
				IsCA:         true,
				IsSelfSigned: true,
				RSAKeySize:   caRSAKeySize,
				IsDualUse:    dualUse,
			}
			pemCert, pemKey, ckErr := util.GenCertKeyFromOptions(options)
			if ckErr != nil {

		return SecretMeta{}, fmt.Errorf("failed to parse certificate PEM")
	}
	cert, err := x509.ParseCertificate(block.Bytes)
	if err != nil {
		return SecretMeta{}, err
	}
	var certType string
	if cert.IsCA {
		certType = "CA"
	} else {
		certType = "Cert Chain"
	}

	today := time.Now()
	return SecretMeta{
		SerialNumber: fmt.Sprintf("%x", cert.SerialNumber),

		return fmt.Errorf("failed to decode pem certificate")
	}
	cert, err := x509.ParseCertificate(block.Bytes)
	if err != nil {
		return fmt.Errorf("failed to parse X.509 certificate: %v", err)
	}
	if !cert.IsCA {
		return fmt.Errorf("certificate is not a CA certificate")
	}
	return nil
}

func (tb *TrustBundle) mergeInternal() {
	var mergeCerts []string
	certMap := sets.New[string]()

	tb.mutex.Lock()

		BasicConstraintsValid: true,
		IsCA:                  false,
	}
	if m := serialiseAndParse(t, template).MaxPathLen; m != -1 {
		t.Errorf("MaxPathLen should be -1 when IsCa is false, got %d", m)
	}

	template.MaxPathLen = -1
	if m := serialiseAndParse(t, template).MaxPathLen; m != -1 {
		t.Errorf("MaxPathLen should be -1 when IsCa is false and MaxPathLen set to -1, got %d", m)
	}

}

func parseBasicConstraintsExtension(der cryptobyte.String) (bool, int, error) {
	var isCA bool
	if !der.ReadASN1(&der, cryptobyte_asn1.SEQUENCE) {
		return false, 0, errors.New("x509: invalid basic constraints")
	}
	if der.PeekASN1Tag(cryptobyte_asn1.BOOLEAN) {
		if !der.ReadASN1Boolean(&isCA) {
			return false, 0, errors.New("x509: invalid basic constraints")
		}
	}
	maxPathLen := -1