我试图连接到一个运行godaddy 256bit SSL证书的IIS6盒子，我得到了错误:
java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
我一直在想是什么原因导致的，但目前还没有头绪。
以下是我的联系方式:
HttpsURLConnection conn;
conn = (HttpsURLConnection) (new URL(mURL)).openConnection();
conn.setConnectTimeout(20000);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.connect();
String tempString = toString(conn.getInputStream());
当前回答
我也遇到过类似的问题，我已经完全排除了相信所有消息来源的策略。
我在这里分享我在Kotlin中实现的应用程序中的解决方案
我首先建议使用以下网站获取有关证书及其有效性的信息
如果它不在Android默认信任存储中显示为“已接受的发行者”，我们必须获得该证书并将其合并到应用程序中以创建自定义信任存储
在我的案例中，理想的解决方案是创建一个高级信任管理器，它结合了自定义和Android默认信任存储
在这里，他公开了用于配置他与Retrofit一起使用的OkHttpClient的高级代码。
override fun onBuildHttpClient(httpClientBuild: OkHttpClient.Builder) {
val trustManagerWrapper = createX509TrustManagerWrapper(
arrayOf(
getCustomX509TrustManager(),
getDefaultX509TrustManager()
)
)
printX509TrustManagerAcceptedIssuers(trustManagerWrapper)
val sslSocketFactory = createSocketFactory(trustManagerWrapper)
httpClientBuild.sslSocketFactory(sslSocketFactory, trustManagerWrapper)
}
通过这种方式，我可以使用自签名证书与服务器通信，也可以使用受信任的证书实体颁发的证书与其他服务器通信
就是这个，我希望它能帮助到一些人。
其他回答
如果你使用了改装，你需要定制你的OkHttpClient。
retrofit =新的retrofit . builder () .baseUrl (ApplicationData.FINAL_URL) .build .client (getUnsafeOkHttpClient () ()) .addConverterFactory (GsonConverterFactory.create ()) .build ();
完整代码如下。
public class RestAdapter {
private static Retrofit retrofit = null;
private static ApiInterface apiInterface;
public static OkHttpClient.Builder getUnsafeOkHttpClient() {
try {
// Create a trust manager that does not validate certificate chains
final TrustManager[] trustAllCerts = new TrustManager[]{
new X509TrustManager() {
@Override
public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return new java.security.cert.X509Certificate[]{};
}
}
};
// Install the all-trusting trust manager
final SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
// Create an ssl socket factory with our all-trusting manager
final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
OkHttpClient.Builder builder = new OkHttpClient.Builder();
builder.sslSocketFactory(sslSocketFactory, (X509TrustManager) trustAllCerts[0]);
builder.hostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
return builder;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static ApiInterface getApiClient() {
if (apiInterface == null) {
try {
retrofit = new Retrofit.Builder()
.baseUrl(ApplicationData.FINAL_URL)
.client(getUnsafeOkHttpClient().build())
.addConverterFactory(GsonConverterFactory.create())
.build();
} catch (Exception e) {
e.printStackTrace();
}
apiInterface = retrofit.create(ApiInterface.class);
}
return apiInterface;
}
}
在我的例子中，这发生在更新到Android 8.0之后。Android设置为信任的自签名证书使用的是签名算法SHA1withRSA。切换到新的证书，使用签名算法sha256withthrsa解决了这个问题。
产生信任锚错误的原因有很多。对我来说，我只是想访问https://example.com/而不是https://www.example.com/。
因此，在开始构建自己的信任管理器(就像我做的那样)之前，您可能需要仔细检查您的url。
In my case, the root & intermediate certificates was successfully installed but I still got "Trust anchor for certification path not found." exception!. After digging the android document, found out that by default, secure connections (using protocols like TLS and HTTPS) from all apps trust the pre-installed system CAs, and apps targeting Android 6.0 (API level 23) and lower also trust the user-added CA store by default. If your app running on a OS with api level higher than 23 you should explicitly allow the app to trust user-added CA by adding its address to network_security_config like bellow:
<domain-config>
<domain includeSubdomains="true">PUT_YOUR_SERVER_ADDERESS</domain>
<trust-anchors>
<certificates src="user" />
</trust-anchors>
</domain-config>
我知道你不需要信任所有的证书，但在我的案例中，我在一些调试环境中遇到了问题，我们有自签名证书，我需要一个脏的解决方案。
我所要做的就是改变sslContext的初始化
mySSLContext.init(null, trustAllCerts, null);
其中trustAllCerts是这样创建的:
private final TrustManager[] trustAllCerts= new TrustManager[] { new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return new java.security.cert.X509Certificate[]{};
}
public void checkClientTrusted(X509Certificate[] chain,
String authType) throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain,
String authType) throws CertificateException {
}
} };
希望这能派上用场。
