Javaでクライアント認証の読込み

Javaでクライアント認証を読込み　PKCS#12

証明書は以下を見て作るとよい
http://server-setting.info/centos/apache-ssl-auth-setting.html

下記は、だいたいこんな感じぐらいで
環境を忘れて確認できなくなったので間違っているかも。。。。。

import java.io.FileInputStream;
import java.security.KeyStore;
import java.util.ArrayList;
import java.util.List;

import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;

import org.apache.http.Header;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicHeader;
import org.apache.http.util.EntityUtils;


public class App
{

    static final String P12FILE = "cert.p12";
    static final char[] PASSWORD = "pass".toCharArray();

    private static SSLContext getSslContext() {
        // PKCS12ファイル読み込み
        KeyManagerFactory keyManagerFactory;
        try (FileInputStream inputStream = new FileInputStream(P12FILE)) {
            KeyStore keyStore = KeyStore.getInstance("PKCS12");
            keyStore.load(inputStream, PASSWORD);

            keyManagerFactory = KeyManagerFactory.getInstance("SunX509");
            keyManagerFactory.init(keyStore, PASSWORD);

            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(keyManagerFactory.getKeyManagers(), null, null);
            return sslContext;

        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) throws Exception {
        int socketTimeout = 60000;
        int connectionTimeout = 60000;
        String userAgent = "My Http Client 0.1";
        // request configuration
        RequestConfig requestConfig = RequestConfig.custom()
                .setConnectTimeout(connectionTimeout)
                .setSocketTimeout(socketTimeout)
                .build();
        // headers
        List<Header> headers = new ArrayList<Header>();
        headers.add(new BasicHeader("Accept-Charset", "utf-8"));
        headers.add(new BasicHeader("Accept-Language", "ja, en;q=0.8"));
        headers.add(new BasicHeader("User-Agent", userAgent));
        // create client
        HttpClient httpClient = HttpClientBuilder.create()
                .setDefaultRequestConfig(requestConfig)
                .setDefaultHeaders(headers).setSSLContext(getSslContext())
                .build();

        HttpGet httpGet = new HttpGet("https://mixi.jp/");
        HttpResponse response = httpClient.execute(httpGet);
        int responseStatus = response.getStatusLine().getStatusCode();
        String body = EntityUtils.toString(response.getEntity(), "UTF-8");
        System.out.println(body);
    }
}