如何修复java.security.KeyException：密钥不存在

Question

我有一个使用Java运行时的Azure函数，它使用NTLM安全性调用了REST API。我创建一个SSLContext对象，并使用它创建一个套接字。这在我的MacBook上本地完美运行。但是，当我部署到Azure Function App时，出现错误：javax.net.ssl.SSLException：连接已关闭：javax.net.ssl.SSLException：java.security.ProviderException：java.security.KeyException：密钥确实存在不存在。

该异常的堆栈跟踪为：

javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLException: java.security.ProviderException: java.security.KeyException: Key does not exist.
at sun.security.ssl.SSLSocketImpl.checkEOF(SSLSocketImpl.java:1551)
at sun.security.ssl.AppInputStream.read(AppInputStream.java:95)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
at java.io.InputStreamReader.read(InputStreamReader.java:184)
at java.io.BufferedReader.fill(BufferedReader.java:161)
at java.io.BufferedReader.readLine(BufferedReader.java:324)
at java.io.BufferedReader.readLine(BufferedReader.java:389)
... 22 more
Caused by: java.security.ProviderException: java.security.KeyException: Key does not exist.
at sun.security.mscapi.RSACipher.doFinal(RSACipher.java:310)
at sun.security.mscapi.RSACipher.engineDoFinal(RSACipher.java:334)
at javax.crypto.Cipher.doFinal(Cipher.java:2164)
at java.security.Signature$CipherAdapter.engineVerify(Signature.java:1319)
at java.security.SignatureSpi.engineVerify(SignatureSpi.java:278)
at java.security.Signature$Delegate.engineVerify(Signature.java:1228)
at java.security.Signature.verify(Signature.java:704)
at sun.security.ssl.RSASignature.engineVerify(RSASignature.java:182)
at sun.security.ssl.RSASignature.engineVerify(RSASignature.java:175)
at java.security.Signature$Delegate.engineVerify(Signature.java:1222)
at java.security.Signature.verify(Signature.java:655)
at sun.security.ssl.HandshakeMessage$ECDH_ServerKeyExchange.<init>(HandshakeMessage.java:1118)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:284)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1052)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:987)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:757)
at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:123)

public static String makeGetRequestLinux(String route, String hostIp, int hostPort, String username, String password, String domain, String workstation)
            throws InterruptedException, IOException, NoSuchAlgorithmException, KeyManagementException {

        String url = route;
        String NEG_HEADER = "WWW-Authenticate: Negotiate";
        StringBuilder body = new StringBuilder();

        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
            @Override
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[0];
            }

            @Override
            public void checkClientTrusted(X509Certificate[] certs, String authType) {
            }

            public void checkServerTrusted(X509Certificate[] certs, String authType) {
            }
        } };

        HostnameVerifier hv = (String hostname, SSLSession session) -> true;

        // Install the all-trusting trust manager
        SSLContext sc = SSLContext.getInstance("SSL");

        sc.init(null, trustAllCerts, new SecureRandom());

        SSLSocket s = (SSLSocket) sc.getSocketFactory().createSocket(hostIp, hostPort);

        PrintWriter pw = new PrintWriter(s.getOutputStream());
        pw.print("GET " + url + " HTTP/1.1\r\n");
        pw.print("Host: " + hostIp + "\r\n");
        pw.print("Authorization: Negotiate " + NtlmEngine.INSTANCE.generateType1Msg() + "\r\n\r\n");
        pw.flush();

        String challenge = null;

        try (BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()))) {
            String t;
            while ((t = br.readLine()) != null) {

                if (t.startsWith(NEG_HEADER)) {
                    String parts[] = t.split("\\s+");
                    challenge = parts[2];
                }
                if (t.trim().length() < 4) {
                    break;
                }
            }

            String msg3 = NtlmEngine.INSTANCE.generateType3Msg(username, password, domain,
                    workstation, challenge);

            pw.print("GET " + url + " HTTP/1.1\r\n");
            pw.print("Host: " + hostIp + "\r\n");
            pw.print("Authorization: Negotiate " + msg3 + "\r\n\r\n");
            pw.flush();

            int blank = 0;

            while ((t = br.readLine()) != null) {

                if (t.trim().length() < 1) {
                    blank++;
                }

                if (blank > 1) {
                    break;
                }

                if (blank == 1) {
                    body.append(t);
                    body.append("\n");
                }
            }
            br.close();
            pw.close();
            s.close();

            return body.toString();

        } catch (Exception ex) {
            throw ex;
        }
    }