这看起来是一个标准问题,但我在任何地方都找不到明确的方向。

我有java代码试图连接到一个可能自签名(或过期)证书的服务器。代码报告以下错误:

[HttpMethodDirector] I/O exception (javax.net.ssl.SSLHandshakeException) caught 
when processing request: sun.security.validator.ValidatorException: PKIX path 
building failed: sun.security.provider.certpath.SunCertPathBuilderException: 
unable to find valid certification path to requested target

根据我的理解,我必须使用keytool并告诉java允许此连接是OK的。

解决此问题的所有说明都假设我完全熟练使用keytool,例如

为服务器生成私有密钥并将其导入密钥存储库

有人能给我详细说明吗?

我正在运行unix,所以bash脚本将是最好的。

不确定这是否重要,但在jboss中执行的代码。


当前回答

在RHEL上,您可以从RHEL 6的新版本开始使用update-ca-trust,而不是像上面的注释所建议的那样使用keytool。您需要拥有pem格式的证书。然后

trust anchor <cert.pem>

编辑/etc/pki/ca-trust/source/cert.P11-kit,将“证书类别:other-entry”修改为“证书类别:authority”。(或使用sed在脚本中完成此操作。)然后做

update-ca-trust

几点注意事项:

I couldn't find "trust" on my RHEL 6 server and yum didn't offer to install it. I ended up using it on an RHEL 7 server and copying the .p11-kit file over. To make this work for you, you may need to do update-ca-trust enable. This will replace /etc/pki/java/cacerts with a symbolic link pointing to /etc/pki/ca-trust/extracted/java/cacerts. (So you might want to back up the former first.) If your java client uses cacerts stored in some other location, you'll want to manually replace it with a symlink to /etc/pki/ca-trust/extracted/java/cacerts, or replace it with that file.

其他回答

您可以通过在RestTemplate级别禁用它来实现这一点。 注意,此TrustStrategy将信任所有证书,并且使用NoopHostnameVerifier()禁用了主机名验证。

public RestTemplate getRestTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
    TrustStrategy acceptingTrustStrategy = (x509Certificates, s) -> true;
    SSLContext sslContext = org.apache.http.ssl.SSLContexts.custom().loadTrustMaterial(null, acceptingTrustStrategy).build();
    SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext, new NoopHostnameVerifier());
    CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(csf).build();
    HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
    requestFactory.setHttpClient(httpClient);
    return new RestTemplate(requestFactory);
}       

接受的答案很好,但我想添加一些东西,因为我在Mac上使用IntelliJ,无法使用JAVA_HOME路径变量让它工作。

事实证明,从IntelliJ运行应用程序时,Java Home是不同的。

要找出它的确切位置,只需执行System.getProperty("java.home"),因为可信证书就是从那里读取的。

在RHEL上,您可以从RHEL 6的新版本开始使用update-ca-trust,而不是像上面的注释所建议的那样使用keytool。您需要拥有pem格式的证书。然后

trust anchor <cert.pem>

编辑/etc/pki/ca-trust/source/cert.P11-kit,将“证书类别:other-entry”修改为“证书类别:authority”。(或使用sed在脚本中完成此操作。)然后做

update-ca-trust

几点注意事项:

I couldn't find "trust" on my RHEL 6 server and yum didn't offer to install it. I ended up using it on an RHEL 7 server and copying the .p11-kit file over. To make this work for you, you may need to do update-ca-trust enable. This will replace /etc/pki/java/cacerts with a symbolic link pointing to /etc/pki/ca-trust/extracted/java/cacerts. (So you might want to back up the former first.) If your java client uses cacerts stored in some other location, you'll want to manually replace it with a symlink to /etc/pki/ca-trust/extracted/java/cacerts, or replace it with that file.

受下面annser的启发,我找到了一种信任自签名CA并保持信任默认CA的方法。

    File file = new File(System.getProperty("java.home"), "lib/security/cacerts");
    KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
    keyStore.load(new FileInputStream(file), "changeit".toCharArray());


    InputStream resourceAsStream = getClass().getClassLoader().getResourceAsStream("testCer.cer");
    Certificate certificate = CertificateFactory.getInstance("X.509").generateCertificate(resourceAsStream);
    keyStore.setCertificateEntry("my-server-alias", certificate);

    TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
    trustManagerFactory.init(keyStore);

    SSLContext sslContext = SSLContexts.createDefault();
    sslContext.init(null, trustManagerFactory.getTrustManagers(), null);


    // check domain
    // SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(sslContext);

    // not check domain
    SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(sslContext,
            new String[]{"TLSv1","TLSv1.1","TLSv1.2","SSLv3"},null, NoopHostnameVerifier.INSTANCE);

    CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(socketFactory).build();
    factory.setHttpClient(httpClient);
    RestTemplate restTemplate = new RestTemplate(factory);

这里基本上有两个选择:将自签名证书添加到JVM信任存储库或将客户端配置为

选项1

从浏览器导出证书,并将其导入JVM信任库(以建立信任链):

<JAVA_HOME>\bin\keytool -import -v -trustcacerts
-alias server-alias -file server.cer
-keystore cacerts.jks -keypass changeit
-storepass changeit 

选项2

禁用证书验证(代码来自Example Depot):

// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[] { 
    new X509TrustManager() {     
        public java.security.cert.X509Certificate[] getAcceptedIssuers() { 
            return new X509Certificate[0];
        } 
        public void checkClientTrusted( 
            java.security.cert.X509Certificate[] certs, String authType) {
            } 
        public void checkServerTrusted( 
            java.security.cert.X509Certificate[] certs, String authType) {
        }
    } 
}; 

// Install the all-trusting trust manager
try {
    SSLContext sc = SSLContext.getInstance("SSL"); 
    sc.init(null, trustAllCerts, new java.security.SecureRandom()); 
    HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (GeneralSecurityException e) {
} 
// Now you can access an https URL without having the certificate in the truststore
try { 
    URL url = new URL("https://hostname/index.html"); 
} catch (MalformedURLException e) {
} 

请注意,我根本不推荐选项#2。禁用信任管理器会破坏SSL的某些部分,使您容易受到中间人攻击。首选选项#1,或者更好的是,让服务器使用由知名CA签名的“真实”证书。