Question

我尝试使用Kalium作为Java warpper使用Libsodium库加密密码。我试图安装它，但我在一些问题上运行。我已经将Kalium依赖项添加到我的pom.xml中，并将libsoidum放在我的javapath中，如here所述。现在我实际上想要使用库来哈希我的密码，然后开始将它们保存在我的数据库中。（我知道oAuth是首选，但这不是软件中的选项。）问题是我不知道如何实际使用包装器。我找不到任何文档或示例。有没有可以帮助我的消息来源？

Answer 1

试试这个

import com.muquit.libsodiumjna.SodiumLibrary;
import com.muquit.libsodiumjna.exceptions.SodiumLibraryException;
import java.nio.charset.StandardCharsets;

public class Encrypt2 {


private static String libraryPath = "D:/libsodium/libsodium.dll";

private static String ourPassPhrase = "your very secret password";
private static byte[] passPhrase = ourPassPhrase.getBytes();
private static String ourMessage = "password which you want to encrypt and decrypt";
private static byte[] privateKey = (ourMessage.getBytes());


public static void main(String[] args) throws Exception {

    SodiumLibrary.setLibraryPath(libraryPath);
    encrypt();
    decrypt();
}

private static void encrypt() throws SodiumLibraryException {

    System.out.println("----Encrypt-----");

    // The salt (probably) can be stored along with the encrypted data
    byte[] salt = SodiumLibrary.randomBytes(SodiumLibrary.cryptoPwhashSaltBytes());
    byte[] key = SodiumLibrary.cryptoPwhashArgon2i(passPhrase, salt);

    String saltedPrivateKey = new String(key, StandardCharsets.UTF_8);
    System.out.println("saltedPrivateKey bytes - " + saltedPrivateKey);
    /**
     * nonce must be 24 bytes length, so we put int 24 to randomBytes method
     * **/
    byte[] nonce = SodiumLibrary.randomBytes(24);
    byte[] encryptedPrivateKey = SodiumLibrary.cryptoSecretBoxEasy(privateKey, nonce, key);
    String encryptedPW = new String(encryptedPrivateKey, StandardCharsets.UTF_8);
    System.out.println("encryptedPrivateKey bytes  - " + encryptedPW);
}

private static void decrypt() throws SodiumLibraryException {

    System.out.println("----Decrypt-----");

    byte[] salt = SodiumLibrary.randomBytes(SodiumLibrary.cryptoPwhashSaltBytes());
    byte[] key = SodiumLibrary.cryptoPwhashArgon2i(passPhrase, salt);
    byte[] nonce = SodiumLibrary.randomBytes(24);
    byte[] encryptedPrivateKey = SodiumLibrary.cryptoSecretBoxEasy(privateKey, nonce, key);
    privateKey = SodiumLibrary.cryptoSecretBoxOpenEasy(encryptedPrivateKey, nonce, key);

    String dencryptedPW = new String(privateKey, StandardCharsets.UTF_8);
    System.out.println("our secret phrase - " + dencryptedPW);

    }
}

在java项目中使用Libsodium / Kalium

1 个答案: