如何将私钥作为 Java 中的字符串传递，以便使用 SSHJ 通过 SFTP 进行连接？

Question

以下代码可以通过 SFTP 连接，使用密钥的 目录路径 来加载它。

这是当前代码（我指定了库以防万一）

import net.schmizz.sshj.SSHClient;
import net.schmizz.sshj.userauth.keyprovider.KeyProvider;
import net.schmizz.sshj.transport.verification.PromiscuousVerifier;

SSHClient sftp = new SSHClient();
KeyProvider privateKey = sftp.loadKeys("/home/sample/.ssh/id_rsa");
sftp.addHostKeyVerifier(new PromiscuousVerifier());
sftp.connect("111.222.333.444");
sftp.authPublickey("sample", privateKey);

有没有办法将私钥的内容作为字符串而不是使用其目录路径传递？

Answer 1

是的，您可以调用库的以下方法来支持use-case。

/**
 * Creates a {@link KeyProvider} instance from passed strings. Currently only PKCS8 format private key files are
 * supported (OpenSSH uses this format).
 * <p/>
 *
 * @param privateKey     the private key as a string
 * @param publicKey      the public key as a string if it's not included with the private key
 * @param passwordFinder the {@link PasswordFinder} that can supply the passphrase for decryption (may be {@code
 *                       null} in case keyfile is not encrypted)
 *
 * @return the key provider ready for use in authentication
 *
 * @throws SSHException if there was no suitable key provider available for the file format; typically because
 *                      BouncyCastle is not in the classpath
 * @throws IOException  if the key file format is not known, etc.
 */   
public KeyProvider loadKeys(String privateKey, String publicKey, PasswordFinder passwordFinder) throws IOException

如果您正在使用的库版本不提供，请考虑升级它。

<dependency>
    <groupId>net.schmizz</groupId>
    <artifactId>sshj</artifactId>
    <version>0.10.0</version>
</dependency>

如何将私钥作为 Java 中的字符串传递，以便使用 SSHJ 通过 SFTP 进行连接？

How to pass the private key as a String in Java in order to connect via SFTP using SSHJ?

java

ssh

sftp

private-key

有没有办法将私钥的内容作为字符串而不是使用其目录路径传递？