自己生成hostkey被 apachmina sshd服务端重写

Apache Mina-sshd服务端如果没有设置hostkey，会自动生成一个hostkey，如果设置了hostkey，会优先使用设置的hostkey，而不是自动生成的hostkey。因此，如果你自己生成了hostkey并将其用作Apache Mina-sshd服务端的hostkey，服务端不会对其进行重写。

以下是一个使用自己生成的hostkey的示例代码：

import java.io.File;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;

import org.apache.sshd.common.config.keys.AuthorizedKeyEntry;
import org.apache.sshd.common.config.keys.PublicKeyEntry;
import org.apache.sshd.server.SshServer;
import org.apache.sshd.server.auth.pubkey.PublickeyAuthenticator;
import org.apache.sshd.server.auth.pubkey.SimplePublicKeyAuthenticator;
import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider;

public class SSHServer {
    public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeySpecException, IOException {
        // Load the hostkey from a file
        File hostKeyFile = new File("hostkeyfile");
        SimpleGeneratorHostKeyProvider hostKeyProvider = new SimpleGeneratorHostKeyProvider(hostKeyFile);

        // Create the SSH server
        SshServer sshd = SshServer.setUpDefaultServer();
        sshd.setPort(22);
        sshd.setKeyPairProvider(hostKeyProvider);

        // Configure public key authentication
        PublickeyAuthenticator publicKeyAuthenticator = new SimplePublicKeyAuthenticator();
        PublicKeyEntry publicKeyEntry = new AuthorizedKeyEntry("ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDq1Oy25jyN3x3uTDVQZC1Oq8MlK8+3+6kqCQs+4j6aGqAq5nbCwVJlbD5zKbJN1yJFJX8kVzXo4yPhS6Y/7I6sE4mFQvT5XgqD1Wl1QeN8L4q5Pv9aJsLd9FmXjCdsfZnJh3aT4s6XnLQ6YFQWvI4QaQdjC3QpE+8XKoO/RiU4jH3S8yS1XG2QJrBbG2Yx7RzUZm5O5F2RJjZQw5L6rWVJo4nL3a6zG1zVhl8Kv3LxWpqtMKzB0S+c8LwSv7q2a5W1yPznJy4eOYQXb9yYrTm8pQJ5qk5S5TjIHX5y5QG2Z43v/2xFyQHqy7CHYKlR8K9K2mTm7QgE8O0t1a24VQW1xQZ8QrjK+qJIViFzUx8P");
        publicKeyAuthenticator.addAuthorizedKey(publicKeyEntry);
        sshd.setPublickeyAuthenticator(publicKeyAuthenticator);

        // Start the SSH server
        sshd.start();
        System.out.println("SSH server is running");
    }
}

该程序将从名为hostkeyfile的文件中加载hostkey，并将其用作Apache Mina-sshd服务端的hostkey。在配置公钥认证时，将使用一个硬编码的公钥作为示例。你应该将其替换为你自己的公钥。