几个不错的java otp 包

个人比较推荐使用BastiaanJansen/otp-java，使用简单，而且包含了生成以及校验

参考代码

pom.xml

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0"

         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

 

    <groupId>org.example</groupId>

    <artifactId>lakefs-app</artifactId>

    <version>1.0-SNAPSHOT</version>

 

    <properties>

        <maven.compiler.source>8</maven.compiler.source>

        <maven.compiler.target>8</maven.compiler.target>

    </properties>

 

    <dependencies>

        <dependency>

            <groupId>com.github.bastiaanjansen</groupId>

            <artifactId>otp-java</artifactId>

            <version>1.3.0</version>

        </dependency>

        <dependency>

            <groupId>commons-codec</groupId>

            <artifactId>commons-codec</artifactId>

            <version>1.15</version>

        </dependency>

    </dependencies>

</project>

代码

package com.dalong;

 

import com.bastiaanjansen.otp.HMACAlgorithm;

import com.bastiaanjansen.otp.TOTP;

 

import java.security.InvalidKeyException;

import java.security.NoSuchAlgorithmException;

import java.time.Duration;

 

public class App {

    static final  String myKey = "dddddd";

    public static void main(String[] args) throws NoSuchAlgorithmException, InvalidKeyException {

        TOTP.Builder builder = new TOTP.Builder(myKey.getBytes());

        builder

                .withPasswordLength(6)

                .withAlgorithm(HMACAlgorithm.SHA1) // SHA256 and SHA512 are also supported

                .withPeriod(Duration.ofSeconds(30));

        TOTP totp = builder.build();

        String mycode =  totp.now();

        System.out.println(mycode);

    }

}

说明

otp 做为系统双因素认证是一个简单方便的东西，我们可以方便的基于开源的otp包开发自己的otp集成方案
可能在使用中会有Caused by: java.lang.ClassNotFoundException: org.apache.commons.codec.binary.Base32 的问题
以为bastiaanjansen的otp 依赖了commons.codec，因为项目依赖冲突了，解决方法很简单，就是添加依赖（参考上边的）

参考资料

https://github.com/BastiaanJansen/otp-java
https://github.com/jchambers/java-otp
https://github.com/amdelamar/jotp