Encryption and Decryption Method by jasypt in SpringBoot

1. Purpose

In SpringBoot, encryption and decryption are possible through jasypt. This is bidirectional and the key can be configured.

2. Use:

2.1 Create tool classes from UT and recognize jasypt

import org.jasypt.util.text.BasicTextEncryptor;
import org.junit.Test;
public class UtilTests {
  @Test
  public void jasyptTest() {
    BasicTextEncryptor encryptor = new BasicTextEncryptor();
    // application.properties, jasypt.encryptor.password
    encryptor.setPassword("abc");
    // encrypt root
    System.out.println(encryptor.encrypt("root"));
    System.out.println(encryptor.encrypt("root"));
    System.out.println(encryptor.encrypt("root"));
    // decrypt, the result is root
    System.out.println(encryptor.decrypt("UP/yojB7ie3apnh3mLTU7w=="));
    System.out.println(encryptor.decrypt("ik9FE3GiYLiHwchiyHg9QQ=="));
    System.out.println(encryptor.decrypt("9Obo/jq9EqmTE0QZaJFYrw=="));
  }
}

You can see that the passwords generated are not the same each time, but the key can be used to decrypt the same plain text.

2.2 Configuring jasypt in SpringBoot

2.2.1 Configuration Key

jasypt.encryptor.password:abc

2.2.2 Use

spring.datasource.url: jdbc:mysql://127.0.0.1:3306/tmp?useSSL=false & useUnicode=true & characterEncoding=utf-8

spring.datasource.username: ENC(ik9FE3GiYLiHwchiyHg9QQ==)

spring.datasource.password: ENC(ik9FE3GiYLiHwchiyHg9QQ==)

spring.datasource.driver-class-name: com.mysql.jdbc.Driver

2.2.3 Configure key at startup

java -jar -Djasypt.encryptor.password=abc xxx.jar

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