Javaクライアント認証(Android)

ClientSSLCertification.java

protected void registerClientCertToSSLSocket(Context context) throws Exception {
        KeyManagerFactory keyManagerFactory;
        final char[] PASSWORD  = "password".toCharArray();
        InputStream inputStream;
            try {
                inputStream = context.getResources().getAssets().open("client.p12");
                KeyStore keyStore = KeyStore.getInstance("PKCS12");
                keyStore.load(inputStream, PASSWORD);
                keyManagerFactory = KeyManagerFactory.getInstance("X509");
                keyManagerFactory.init(keyStore, PASSWORD);
                SSLContext sslContext = SSLContext.getInstance("TLS");
                sslContext.init(keyManagerFactory.getKeyManagers(), null, null);

                HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
            } catch (IOException e) {
                log.error("#HttpsClient", "not found cert-file");
                throw new Exception(e);
            } catch (KeyStoreException e) {
                log.error("#HttpsClient", "keystore instance exception");
                throw new Exception(e);
            } catch (NoSuchAlgorithmException e) {
                log.error("#HttpsClient", "Not Support X509 Algorigthm");
                throw new Exception(e);
            } catch (CertificateException e) {
                log.error("#HttpsClient", "Certification error");
                throw new Exception(e);
            }
}