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<h1>Camunda</h1>
<div id="toc" class="toc2">
<div id="toctitle">Table of Contents</div>
<span id="back-to-index"><a href="index.html">Back to index</a></span><ul class="sectlevel1">
<li><a href="#_企业版破解方法">1. 企业版破解方法</a></li>
</ul>
</div>
</div>
<div id="content">
<div id="preamble">
<div class="sectionbody">
<div class="paragraph">
<p>Camunda是通用的流程编排引擎</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_企业版破解方法"><a class="anchor" href="#_企业版破解方法"></a>1. 企业版破解方法</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Camunda Platform企业版功能比社区版更完善，不过企业版默认仅能试用30天，按照如下方法可以突破此限制长期使用。</p>
</div>
<div class="paragraph">
<p>首先在 <a href="https://camunda.com/download/">Camunda下载页面</a>选择 <code>30-Day Trial Enterprise Edition</code> 填写相关信息后下载企业版，
注意邮箱必须填写真实邮箱，因为Camunda会向邮箱发送一个试用账号和License，只有使用此账号才能下载。</p>
</div>
<div class="paragraph">
<p>下载并解压后的Camunda目录结构如下所示，在internal/webapps目录下有一个名称为 <code>camunda-license-check</code> 的jar包，
这个jar包就负责校验license，后续步骤会替换jar包根目录下的公钥 <code>unified_public_key.der</code></p>
</div>
<div class="literalblock">
<div class="content">
<pre>configuration/
internal/
--example/
--rest/
--swaggerui/
--webapps/</pre>
</div>
</div>
<div class="paragraph">
<p>下一步执行如下如下Java类生成密钥对和签名，注意修改main方法中的 <code>privateKeyPath</code> 和 <code>publicKeyPath</code> 两个参数为电脑上存在的目录。
这个类运行后会打印一个无限期使用的license字符串，保存下来在下一步使用。</p>
</div>
<div class="listingblock">
<div class="content">
<pre class="highlight"><code class="language-java" data-lang="java"><span class="fold-block hide-when-folded">import org.apache.commons.codec.binary.Base64;
import org.springframework.util.FileCopyUtils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.*;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.PKCS8EncodedKeySpec;

</span><span class="fold-block">public class Camunda {

    private static final Base64 BASE64 = new Base64(0);

    /**
     * 生成密钥对
     * @param privateKeyPath  私钥文件
     * @param publicKeyPath   公钥文件
     * @throws NoSuchAlgorithmException
     * @throws IOException
     */
    private static void generateKeyPair(String privateKeyPath, String publicKeyPath) throws NoSuchAlgorithmException, IOException {
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        keyPairGenerator.initialize(4096);
        KeyPair keyPair = keyPairGenerator.generateKeyPair();
        PrivateKey aPrivate = keyPair.getPrivate();
        PublicKey aPublic = keyPair.getPublic();
        byte[] publicEncoded = aPublic.getEncoded();
        byte[] privateEncoded = aPrivate.getEncoded();
        FileCopyUtils.copy(publicEncoded, new FileOutputStream(publicKeyPath));
        FileCopyUtils.copy(privateEncoded, new FileOutputStream(privateKeyPath));
    }

    private static String sign(String privateKeyPath) throws IOException, NoSuchAlgorithmException, InvalidKeySpecException, InvalidKeyException, SignatureException {
        KeyFactory keyFactory = KeyFactory.getInstance("RSA");
        PKCS8EncodedKeySpec keySpec1 = new PKCS8EncodedKeySpec(FileCopyUtils.copyToByteArray(new File(privateKeyPath)));
        PrivateKey privateKey = keyFactory.generatePrivate(keySpec1);
        Signature signature = Signature.getInstance("SHA256withRSA");
        signature.initSign(privateKey);
        String licenseBody = "customer = jd;expiryDate = unlimited;cawemo = true;optimize = true;camundaBPM = true;";
        signature.update(licenseBody.getBytes());
        byte[] sign = signature.sign();
        String encodedSign = BASE64.encodeToString(sign);
        encodedSign = encodedSign + ";\n" + "customer = jd;\nexpiryDate = unlimited;\ncawemo = true;\noptimize = true;\ncamundaBPM = true;";
        return encodedSign;
    }

    public static void main(String[] args) throws NoSuchAlgorithmException, IOException, InvalidKeySpecException, SignatureException, InvalidKeyException {
        String privateKeyPath = "C:/Users/pxzxj1/Desktop/private_key.pem";
        String publicKeyPath = "C:/Users/pxzxj1/Desktop/unified_public_key.der";
        generateKeyPair(privateKeyPath, publicKeyPath);
        String signature = sign(privateKeyPath);
        System.out.println(signature);
    }

}
</span></code></pre>
</div>
</div>
<div class="paragraph">
<p>使用上一步生成的unified_public_key.der公钥替换 <code>camunda-license-check</code> jar包中的对应公钥后就可以启动服务。启动后在License Key菜单中输入上一步生成的
License字符串，保存后会提示 <span class="green">Your license key has unlimited validity. It will not expire.</span> 表示已经破解成功。</p>
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Last updated 2024-03-18 05:44:42 UTC
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