private PrivateKey getRSAPrivateKey ( Provider provider ) { try { RSAPrivateKeySpec privateKeySpec = getRSAPrivateKeySpec ( ) ; KeyFactory factory = provider != null ? KeyFactory . getInstance ( "RSA" , provider ) : KeyFactory . getInstance ( "RSA" ) ; return factory . generatePrivate ( privateKeySpec ) ; } catch ( GeneralSecurityException e ) { throw new IllegalStateException ( e ) ; } }
Get the RSA private key value .