仅使用.key和.crt构建io.netty.handler.ssl.SslContext

问题描述

关于如何仅使用.key（点密钥）文件和.crt（点crt）文件构建Netty io.netty.handler.ssl.SslContext，我有一个疑问。

强调一下，我正在寻求帮助来构建io.netty.handler.ssl.SslContext，而不是org.apache.http.ssl.SSLContexts。

此外，我正在寻求构建io.netty.handler.ssl.SslContext的帮助，而没有现成的密钥库和信任库。 （将无法直接执行此操作）

public SslContext getSslContext() {
        try {
            final Path     keystorePath = Paths.get(keyStorePath);
            final KeyStore keyStore     = KeyStore.getInstance(keyStoreType);
            try (InputStream keyStoreFile = Files.newInputStream(keystorePath)) {
                keyStore.load(keyStoreFile,keyStorePassphrase.tochararray());
            }
            final KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
            keyManagerFactory.init(keyStore,keyPassphrase.tochararray());

            final Path     truststorePath = Paths.get(trustStorePath);
            final KeyStore trustStore     = KeyStore.getInstance(trustStoreType);
            try (InputStream trustStoreFile = Files.newInputStream(truststorePath)) {
                trustStore.load(trustStoreFile,trustStorePassphrase.tochararray());
            }
            final TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(trustStore);

            return SslContextBuilder.forClient().keyManager(keyManagerFactory).trustManager(trustManagerFactory).build();
        } catch (KeyStoreException | IOException | UnrecoverableKeyException | NoSuchAlgorithmException | CertificateException e) {
            
            return null;
        }
    }

请问最简单的方法是什么？

谢谢

解决方法

Netty能够加载pem格式的私钥和证书作为密钥材料。它内置在SslContextBuilder中，请参见下面的示例：

SslContext sslContext = SslContextBuilder.forClient()
    .keyManager(new File("/path/to/certificate.crt"),new File("/path/to/private.key"),"secret")
    .build();

有关该方法的javadoc，请参见下文

   /**
     * Identifying certificate for this host. {@code keyCertChainFile} and {@code keyFile} may
     * be {@code null} for client contexts,which disables mutual authentication.
     *
     * @param keyCertChainFile an X.509 certificate chain file in PEM format
     * @param keyFile a PKCS#8 private key file in PEM format
     * @param keyPassword the password of the {@code keyFile},or {@code null} if it's not
     *     password-protected
     */
    public SslContextBuilder keyManager(File keyCertChainFile,File keyFile,String keyPassword) {
    ...
    }

关于在不使用密钥库的情况下生成netty ssl上下文的第二个问题，我建议使用Bouncy城​​堡库创建私钥对作为密钥材料，您可以将其提供给netty sslcontext构建器。 请参见此处，以获取有关使用弹性城堡创建私钥对的参考：Generating keyPair using Bouncy Castle

有关可用于提供充气城堡生成的私钥和证书的方法，请参见下文

    /**
     * Identifying certificate for this host. {@code keyCertChain} and {@code key} may
     * be {@code null} for client contexts,which disables mutual authentication.
     *
     * @param key a PKCS#8 private key
     * @param keyCertChain an X.509 certificate chain
     */
    public SslContextBuilder keyManager(PrivateKey key,Iterable<? extends X509Certificate> keyCertChain) {
        return keyManager(key,toArray(keyCertChain,EMPTY_X509_CERTIFICATES));
    }