// GenerateCertificate generates an X509 Certificate from a template, given a GUN
func GenerateCertificate(rootKey data.PrivateKey, gun string) (*x509.Certificate, error) {
switch rootKey.(type) {
case *data.RSAPrivateKey, *data.ECDSAPrivateKey:
// go doesn't fall through
default:
return nil, fmt.Errorf("only bare RSA or ECDSA keys (not x509 variants) are currently supported. Found: %s", rootKey.Algorithm())
}
template, err := trustmanager.NewCertificate(gun)
if err != nil {
return nil, fmt.Errorf("failed to create the certificate template for: %s (%v)", gun, err)
}
derBytes, err := x509.CreateCertificate(rand.Reader, template, template, rootKey.CryptoSigner().Public(), rootKey.CryptoSigner())
if err != nil {
return nil, fmt.Errorf("failed to create the certificate for: %s (%v)", gun, err)
}
// Encode the new certificate into PEM
cert, err := x509.ParseCertificate(derBytes)
if err != nil {
return nil, fmt.Errorf("failed to parse the certificate for key: %s (%v)", gun, err)
}
return cert, nil
}
// GenerateCertificate generates an X509 Certificate from a template, given a GUN and validity interval
func GenerateCertificate(rootKey data.PrivateKey, gun string, startTime, endTime time.Time) (*x509.Certificate, error) {
signer := rootKey.CryptoSigner()
if signer == nil {
return nil, fmt.Errorf("key type not supported for Certificate generation: %s\n", rootKey.Algorithm())
}
return generateCertificate(signer, gun, startTime, endTime)
}
// GenerateCertificate generates an X509 Certificate from a template, given a GUN
func GenerateCertificate(rootKey data.PrivateKey, gun string) (*x509.Certificate, error) {
signer := rootKey.CryptoSigner()
if signer == nil {
return nil, fmt.Errorf("key type not supported for Certificate generation: %s\n", rootKey.Algorithm())
}
template, err := trustmanager.NewCertificate(gun)
if err != nil {
return nil, fmt.Errorf("failed to create the certificate template for: %s (%v)", gun, err)
}
derBytes, err := x509.CreateCertificate(rand.Reader, template, template, signer.Public(), signer)
if err != nil {
return nil, fmt.Errorf("failed to create the certificate for: %s (%v)", gun, err)
}
// Encode the new certificate into PEM
cert, err := x509.ParseCertificate(derBytes)
if err != nil {
return nil, fmt.Errorf("failed to parse the certificate for key: %s (%v)", gun, err)
}
return cert, nil
}