com.github.sdtool:stateless-captcha

Stateless captcha library for java

License	Apache License, Version 2.0
GroupId	com.github.sdtool
ArtifactId	stateless-captcha
Last Version	1.2.0
Release Date	Jan 26, 2021
Type	jar
Description	com.github.sdtool:stateless-captcha Stateless captcha library for java
Project URL	https://github.com/sdtool/stateless-captcha
Source Code Management	https://github.com/sdtool/stateless-captcha

Download stateless-captcha

Filename	Size
stateless-captcha-1.2.0.pom
stateless-captcha-1.2.0.jar	1 MB
stateless-captcha-1.2.0-sources.jar	1 MB
stateless-captcha-1.2.0-javadoc.jar	303 KB

How to add to project

Apache Maven

<!-- https://jarcasting.com/artifacts/com.github.sdtool/stateless-captcha/ -->
<dependency>
    <groupId>com.github.sdtool</groupId>
    <artifactId>stateless-captcha</artifactId>
    <version>1.2.0</version>
</dependency>

Gradle Groovy

// https://jarcasting.com/artifacts/com.github.sdtool/stateless-captcha/
implementation 'com.github.sdtool:stateless-captcha:1.2.0'

Gradle Kotlin

// https://jarcasting.com/artifacts/com.github.sdtool/stateless-captcha/
implementation ("com.github.sdtool:stateless-captcha:1.2.0")

Apache Buildr

'com.github.sdtool:stateless-captcha:jar:1.2.0'

Apache Ivy

<dependency org="com.github.sdtool" name="stateless-captcha" rev="1.2.0">
  <artifact name="stateless-captcha" type="jar" />
</dependency>

Groovy Grape

@Grapes(
@Grab(group='com.github.sdtool', module='stateless-captcha', version='1.2.0')
)

Scala SBT

libraryDependencies += "com.github.sdtool" % "stateless-captcha" % "1.2.0"

Leiningen

[com.github.sdtool/stateless-captcha "1.2.0"]

Dependencies

compile (2)

Group / Artifact	Type	Version
com.jhlabs : filters	jar	2.0.235-1
com.auth0 : java-jwt	jar	3.12.0

test (1)

Group / Artifact	Type	Version
org.junit.jupiter : junit-jupiter-engine	jar	5.7.0

Project Modules

There are no modules declared in this project.

Stateless Captcha for Java

Simple standalone stateless captcha library for Java 8 (and above). Stateless verification implementation for custom usage (such as spring boot stateless microservice mode).

Based on http://simplecaptcha.sourceforge.net/ version 1.2.1

Usage

Build captcha

Captcha captcha=new Captcha.Builder(200, 50)
        .addText()
        .addNoise()
        .addBackground()
        .build();

Build Token and Verify

TokenProperties props = new TokenProperties("sd", 300)

// Create token (creator side, can be in any microservice/application)
Creator creator = new Creator(props);
// build token with captcha from earlier stage
CaptchaToken token = creator.create(captcha);

// verify token (verifier side, can be in any other microservice/application)
CaptchaVerificationToken verification=<user side data>
Verifier verifier = Verifier(props);
// verify token. If invalid VerificationException is thrown
verifier.verify(verification);

Versions

Version
1.2.0 Jan 26, 2021
1.1.1 Jan 24, 2021
1.1.0 Jan 24, 2021
1.0.0 Jan 23, 2021