get the certificate authority 's x509 certificate . concode_field_sep PrivateKey issuerPrivateKey concode_elem_sep X509Certificate issuerCert concode_elem_sep String SIGNATURE_ALGORITHM concode_field_sep ContentSigner getContentSigner concode_elem_sep KeyStore.PrivateKeyEntry sign concode_elem_sep void initialize concode_elem_sep JcaX509CertificateConverter newCertConverter concode_elem_sep PrivateKey getPrivateKey
X509Certificate function ( ) { return issuerCert ; }