Exemple #1
0
// Sign is used with an OCSP signer to request the issuance of
// an OCSP response.
func (s StandardSigner) Sign(req SignRequest) ([]byte, error) {
	if req.Certificate == nil {
		return nil, cferr.New(cferr.OCSPError, cferr.ReadFailed)
	}

	// Verify that req.Certificate is issued under s.issuer
	if bytes.Compare(req.Certificate.RawIssuer, s.issuer.RawSubject) != 0 {
		return nil, cferr.New(cferr.OCSPError, cferr.IssuerMismatch)
	}
	if req.Certificate.CheckSignatureFrom(s.issuer) != nil {
		return nil, cferr.New(cferr.OCSPError, cferr.IssuerMismatch)
	}

	// Round thisUpdate times down to the nearest hour
	thisUpdate := time.Now().Truncate(time.Hour)
	nextUpdate := thisUpdate.Add(s.interval)

	status, ok := StatusCode[req.Status]
	if !ok {
		return nil, cferr.New(cferr.OCSPError, cferr.InvalidStatus)
	}

	// If the OCSP responder is the same as the issuer, there is no need to
	// include any certificate in the OCSP response, which decreases the byte size
	// of OCSP responses dramatically.
	certificate := s.responder
	if s.issuer == s.responder || bytes.Equal(s.issuer.Raw, s.responder.Raw) {
		certificate = nil
	}

	template := ocsp.Response{
		Status:          status,
		SerialNumber:    req.Certificate.SerialNumber,
		ThisUpdate:      thisUpdate,
		NextUpdate:      nextUpdate,
		Certificate:     certificate,
		ExtraExtensions: req.Extensions,
		IssuerHash:      req.IssuerHash,
	}

	if status == ocsp.Revoked {
		template.RevokedAt = req.RevokedAt
		template.RevocationReason = req.Reason
	}

	return ocsp.CreateResponse(s.issuer, s.responder, template, s.key)
}
Exemple #2
0
// Sign is used with an OCSP signer to request the issuance of
// an OCSP response.
func (s StandardSigner) Sign(req SignRequest) ([]byte, error) {
	if req.Certificate == nil {
		return nil, cferr.New(cferr.OCSPError, cferr.ReadFailed)
	}

	// Verify that req.Certificate is issued under s.issuer
	if bytes.Compare(req.Certificate.RawIssuer, s.issuer.RawSubject) != 0 {
		return nil, cferr.New(cferr.OCSPError, cferr.IssuerMismatch)
	}
	if req.Certificate.CheckSignatureFrom(s.issuer) != nil {
		return nil, cferr.New(cferr.OCSPError, cferr.IssuerMismatch)
	}

	// Round thisUpdate times down to the nearest hour
	thisUpdate := time.Now().Truncate(time.Hour)
	nextUpdate := thisUpdate.Add(s.interval)

	status, ok := statusCode[req.Status]
	if !ok {
		return nil, cferr.New(cferr.OCSPError, cferr.InvalidStatus)
	}

	template := ocsp.Response{
		Status:       status,
		SerialNumber: req.Certificate.SerialNumber,
		ThisUpdate:   thisUpdate,
		NextUpdate:   nextUpdate,
		Certificate:  s.responder,
	}

	if status == ocsp.Revoked {
		template.RevokedAt = req.RevokedAt
		template.RevocationReason = req.Reason
	}

	return ocsp.CreateResponse(s.issuer, s.responder, template, s.key)
}