如何将 SSLEngine 限制为 TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8 CipherSuite？

Question

我有以下代码：

SSLContext sslContext = SSLContext.getInstance("TLS", BouncyCastleProvider.PROVIDER_NAME);
sslContext.init(keyManagerFactory.getKeyManagers(), null, null);
SSLEngine sslEngine = sslContext.createSSLEngine();
String[] suites = { "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8" };
sslEngine.setEnabledCipherSuites(suites);

谢谢。

编辑：我发现我应该使用BouncyCastleJsseProviderwhich 需要一个SecureRandom对象，如下所示：

sslContext.init(keyManagerFactory.getKeyManagers(), null, new SecureRandom());

使用新的提供程序后，我在我的代码库中得到以下堆栈跟踪，据我所知，它应该像以前一样工作：

Aug 17, 2017 8:47:32 PM org.bouncycastle.jsse.provider.ProvTlsServer notifyAlertRaised
INFO: Server raised fatal(2) handshake_failure(40) alert: Failed to read record
org.bouncycastle.tls.TlsFatalAlert: handshake_failure(40)
    at org.bouncycastle.tls.AbstractTlsServer.getSelectedCipherSuite(Unknown Source)
    at org.bouncycastle.jsse.provider.ProvTlsServer.getSelectedCipherSuite(Unknown Source)
    at org.bouncycastle.tls.TlsServerProtocol.sendServerHelloMessage(Unknown Source)
    at org.bouncycastle.tls.TlsServerProtocol.handleHandshakeMessage(Unknown Source)
    at org.bouncycastle.tls.TlsProtocol.processHandshakeQueue(Unknown Source)
    at org.bouncycastle.tls.TlsProtocol.processRecord(Unknown Source)
    at org.bouncycastle.tls.RecordStream.readRecord(Unknown Source)
    at org.bouncycastle.tls.TlsProtocol.safeReadRecord(Unknown Source)
    at org.bouncycastle.tls.TlsProtocol.offerInput(Unknown Source)
    at org.bouncycastle.jsse.provider.ProvSSLEngine.unwrap(Unknown Source)

Answer 1

我做了以下工作以使其正常工作。

• 添加提供者：BouncyCastleProvider和BouncyCastleJsseProvider

  Security.addProvider(new BouncyCastleProvider());
  Security.addProvider(new BouncyCastleJsseProvider());
  

• 创建SSLContext使用BouncyCastleJsseProvider

  SSLContext sslContext = SSLContext.getInstance("TLS", BouncyCastleJsseProvider.PROVIDER_NAME);
  

• sslContext使用SecureRandomwith的实例初始化BouncyCastleProvider

  sslContext.init(
          keyManagers,
          trustManagers,
          SecureRandom.getInstance("DEFAULT", BouncyCastleProvider.PROVIDER_NAME));
  

• 您可能需要创建KeyManagerFactorywithBouncyCastleJsseProvider和PKIXalgorithm

  KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance("PKIX", BouncyCastleJsseProvider.PROVIDER_NAME);
  

• 现在，我们可以启用密码套件

  SSLEngine sslEngine = sslContext.createSSLEngine();
  String[] suites = { "TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8" };
  sslEngine.setEnabledCipherSuites(suites);