Exemplo n.º 1
0
  Collection<SignatureAndHashAlgorithm> getLocalSupportedSignAlgs() {
    if (localSupportedSignAlgs == null) {
      localSupportedSignAlgs =
          SignatureAndHashAlgorithm.getSupportedAlgorithms(algorithmConstraints);
    }

    return localSupportedSignAlgs;
  }
Exemplo n.º 2
0
  /**
   * Prior to handshaking, activate the handshake and initialize the version, input stream and
   * output stream.
   */
  void activate(ProtocolVersion helloVersion) throws IOException {
    if (activeProtocols == null) {
      activeProtocols = getActiveProtocols();
    }

    if (activeProtocols.collection().isEmpty() || activeProtocols.max.v == ProtocolVersion.NONE.v) {
      throw new SSLHandshakeException("No appropriate protocol");
    }

    if (activeCipherSuites == null) {
      activeCipherSuites = getActiveCipherSuites();
    }

    if (activeCipherSuites.collection().isEmpty()) {
      throw new SSLHandshakeException("No appropriate cipher suite");
    }

    // temporary protocol version until the actual protocol version
    // is negotiated in the Hello exchange. This affects the record
    // version we sent with the ClientHello.
    if (!isInitialHandshake) {
      protocolVersion = activeProtocolVersion;
    } else {
      protocolVersion = activeProtocols.max;
    }

    if (helloVersion == null || helloVersion.v == ProtocolVersion.NONE.v) {
      helloVersion = activeProtocols.helloVersion;
    }

    // We accumulate digests of the handshake messages so that
    // we can read/write CertificateVerify and Finished messages,
    // getting assurance against some particular active attacks.
    Set<String> localSupportedHashAlgorithms =
        SignatureAndHashAlgorithm.getHashAlgorithmNames(getLocalSupportedSignAlgs());
    handshakeHash = new HandshakeHash(!isClient, needCertVerify, localSupportedHashAlgorithms);

    // Generate handshake input/output stream.
    input = new HandshakeInStream(handshakeHash);
    if (conn != null) {
      output = new HandshakeOutStream(protocolVersion, helloVersion, handshakeHash, conn);
      conn.getAppInputStream().r.setHandshakeHash(handshakeHash);
      conn.getAppInputStream().r.setHelloVersion(helloVersion);
      conn.getAppOutputStream().r.setHelloVersion(helloVersion);
    } else {
      output = new HandshakeOutStream(protocolVersion, helloVersion, handshakeHash, engine);
      engine.inputRecord.setHandshakeHash(handshakeHash);
      engine.inputRecord.setHelloVersion(helloVersion);
      engine.outputRecord.setHelloVersion(helloVersion);
    }

    // move state to activated
    state = -1;
  }