为什么在加密文本时使用jasypt设置密码? [英] Why set a password using jasypt when encrypting text?

问题描述

我要加密密码(从 http://www.jasypt.org/encrypting修改-texts.html ):

BasicTextEncryptor textEncryptor = new BasicTextEncryptor();
textEncryptor.setPassword(myEncryptionPassword);
String myEncryptedText = textEncryptor.encrypt(myText);
String plainText = textEncryptor.decrypt(myEncryptedText);

为什么需要在BasicTextEncryptor上设置密码?

Why is a password required to be set on BasicTextEncryptor ?

我可能在这里不了解一些基本知识，但这虽然没有用，但这没有任何意义:

I may be not understanding something fundamental here but does this not make sense, although it does not work :

BasicTextEncryptor textEncryptor = new BasicTextEncryptor();
String myEncryptedText = textEncryptor.encrypt(myText);
String plainText = textEncryptor.decrypt(myEncryptedText);

推荐答案

它确实有效，并且确实需要密码进行加密和解密.为了简化示例，我已经启动了两个StandardPBEStringEncryptor会话，分别作为加密器和解密器

It does work and it does require password for encryption and decryption. To simplify the example I have initiated two sessions of StandardPBEStringEncryptor as encryptor and decryptor

public static void main(String[] args) {
    StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();
    encryptor.setPassword("mySecretPassword");        
    String encryptedText = encryptor.encrypt("Hello World");
    System.out.println("Encrypted text is: " + encryptedText);

    StandardPBEStringEncryptor decryptor = new StandardPBEStringEncryptor();
    decryptor.setPassword("mySecretPassword");  
    String decryptedText = decryptor.decrypt(encryptedText);
    System.out.println("Decrypted text is: " + decryptedText);
    }

输出:

Encrypted text is: +pBbr+KOb7D6Ap/5vYJIUoHbhOruls+L
Decrypted text is: Hello World

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