javax.net.ssl.SSLHandshakeException：java.security.cert.CertPathValidatorException：找不到证书路径的信任锚

Question

我正在使用 Retrofit 访问我的 REST API。但是，当我将我的 API 放在 ssl 后面并通过 http://myhost/myapi 访问它时，我收到此错误：

既然我的 API 支持 SSL，我是否需要做一些额外的事情？

这是我的连接方式：

 private final String API = "https://myhost/myapi";

private final RestAdapter REST_ADAPTER = new RestAdapter.Builder()
        .setServer(API)
        .setLogLevel(RestAdapter.LogLevel.FULL)
        .build();

01-10 09:49:55.621    2076-2100/com.myapp.mobile D/Retrofit﹕ javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
            at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:401)
            at libcore.net.http.HttpConnection.setupSecureSocket(HttpConnection.java:209)
            at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:478)
            at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:433)
            at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
            at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
            at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:282)
            at libcore.net.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:497)
            at libcore.net.http.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:134)
            at retrofit.client.UrlConnectionClient.readResponse(UrlConnectionClient.java:90)
            at retrofit.client.UrlConnectionClient.execute(UrlConnectionClient.java:48)
            at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:287)
            at retrofit.RestAdapter$RestHandler.invoke(RestAdapter.java:222)
            at $Proxy12.signin(Native Method)
            at com.myapp.loginactivity$3.doInBackground(LoginActivity.java:143)
            at com.myapp.loginactivity$3.doInBackground(LoginActivity.java:136)
            at android.os.AsyncTask$2.call(AsyncTask.java:287)
            at java.util.concurrent.FutureTask.run(FutureTask.java:234)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
            at java.lang.Thread.run(Thread.java:841)
     Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
            at org.apache.harmony.xnet.provider.jsse.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:282)
            at org.apache.harmony.xnet.provider.jsse.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:202)
            at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.verifyCertificateChain(OpenSSLSocketImpl.java:595)
            at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_do_handshake(Native Method)
            at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:398)
            at libcore.net.http.HttpConnection.setupSecureSocket(HttpConnection.java:209)
            at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:478)
            at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:433)
            at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
            at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
            at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:282)
            at libcore.net.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:497)
            at libcore.net.http.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:134)
            at retrofit.client.UrlConnectionClient.readResponse(UrlConnectionClient.java:90)
            at retrofit.client.UrlConnectionClient.execute(UrlConnectionClient.java:48)
            at retrofit.RestAdapter$RestHandler.invokeRequest(RestAdapter.java:287)
            at retrofit.RestAdapter$RestHandler.invoke(RestAdapter.java:222)
            at $Proxy12.signin(Native Method)
            at com.myapp.LoginActivity$3.doInBackground(LoginActivity.java:143)
            at com.myapp.LoginActivity$3.doInBackground(LoginActivity.java:136)
            at android.os.AsyncTask$2.call(AsyncTask.java:287)
            at java.util.concurrent.FutureTask.run(FutureTask.java:234)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
            at java.lang.Thread.run(Thread.java:841)

原文由 birdy 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

发生这种情况的原因是 JVM/Dalvik 对系统或用户证书存储中的 CA 证书不信任。

要使用 Retrofit 解决此问题，如果您使用 okhttp，则与另一个客户端非常相似。

你必须这样做：

一个）。创建一个包含 CA 公钥的证书存储。为此，您需要为 *nix 启动下一个脚本。您需要在您的机器上安装 openssl，并从 https://www.bouncycastle.org/ 下载 jar bcprov-jdk16-1.46.jar。下载此版本不是其他版本，1.5x 版本与 android 4.0.4 不兼容。

 #!/bin/bash

if [ -z $1 ]; then
  echo "Usage: cert2Android<CA cert PEM file>"
  exit 1
fi

CACERT=$1
BCJAR=bcprov-jdk16-1.46.jar

TRUSTSTORE=mytruststore.bks
ALIAS=`openssl x509 -inform PEM -subject_hash -noout -in $CACERT`

if [ -f $TRUSTSTORE ]; then
    rm $TRUSTSTORE || exit 1
fi

echo "Adding certificate to $TRUSTSTORE..."
keytool -import -v -trustcacerts -alias $ALIAS \
      -file $CACERT \
      -keystore $TRUSTSTORE -storetype BKS \
      -providerclass org.bouncycastle.jce.provider.BouncyCastleProvider \
      -providerpath $BCJAR \
      -storepass secret

echo ""
echo "Added '$CACERT' with alias '$ALIAS' to $TRUSTSTORE..."

B).将文件 truststore mytruststore.bks 复制到项目的 res/raw 中

C）。设置连接的 SSLContext：

 .............
okHttpClient = new OkHttpClient();
try {
    KeyStore ksTrust = KeyStore.getInstance("BKS");
    InputStream instream = context.getResources().openRawResource(R.raw.mytruststore);
    ksTrust.load(instream, "secret".toCharArray());

    // TrustManager decides which certificate authorities to use.
    TrustManagerFactory tmf = TrustManagerFactory
        .getInstance(TrustManagerFactory.getDefaultAlgorithm());
    tmf.init(ksTrust);
    SSLContext sslContext = SSLContext.getInstance("TLS");
    sslContext.init(null, tmf.getTrustManagers(), null);

    okHttpClient.setSslSocketFactory(sslContext.getSocketFactory());
} catch (KeyStoreException | IOException | NoSuchAlgorithmException | CertificateException | KeyManagementException e) {
    e.printStackTrace();
}
.................

原文由 Fernando. 发布，翻译遵循 CC BY-SA 3.0 许可协议