// 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)
}
// 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)
}