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私信吧 |
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压缩包还有密码？ |
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自己找到修改的文件对比下不就知道了 |
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密码是：www.p30download.com |
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对比了，就是没有看懂他的逻辑才问的。 |
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这不复杂吧？ReCaf编辑下字节码的事情。 |
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Hook环境变量，然后栈回溯找对应的模块修改 |
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大侠讲讲您破解的在什么地方，跟软件自带的是一样吗？谢谢了。。。 |
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在doAuth函数调用了pubkey的验证。License中使用的是SIGN所以下面代码中的b变量就是false的，如果没有验证就会调用 PriKey.pubkeyVerify、PriKeyURL.pubkeyVerify 进行验证，定义变量authentic就是验证过直接bypass。 void doAuthenticate() throws FlexlmException {
final byte[] buildCryptBuffer = this.buildCryptBuffer();
final boolean b = this.signature2 != null;
final boolean b2 = this.signature1 != null;
if (!b2 && !b) {
throw new FlexlmLicenseElementException(-516, 4035, this.filename, this.lineNumber, this.lineText, this.name);
}
boolean authentic = true;
try {
if (LicenseElement.urlList == null && LicenseElement.loadfromURL) {
final Properties properties = new Properties();
final InputStream systemResourceAsStream = ClassLoader.getSystemResourceAsStream("FlexnetPublisher.properties");
if (systemResourceAsStream != null) {
properties.load(systemResourceAsStream);
final String property = properties.getProperty("CerticomJarPath");
if (property != null) {
LicenseElement.urlList = new URL[] { new File(property + "/" + "EccpressoAll.jar").toURL() };
}
}
}
}
catch (final NullPointerException ex) {}
catch (final MalformedURLException ex2) {}
catch (final IOException ex3) {}
if (LicenseElement.urlList != null) {
LicenseElement.loadfromURL = true;
if (b) {
authentic = PriKeyURL.pubkeyVerify(buildCryptBuffer, hexToBinBytes(this.signature2), this.vInfo, this.strength, LicenseElement.urlList);
}
if (!authentic && b2) {
authentic = PriKeyURL.pubkeyVerify(buildCryptBuffer, hexToBinBytes(this.signature1), this.vInfo, this.strength, LicenseElement.urlList);
}
}
else {
LicenseElement.loadfromURL = false;
if (b) {
authentic = PriKey.pubkeyVerify(buildCryptBuffer, hexToBinBytes(this.signature2), this.vInfo, this.strength);
}
if (!authentic && b2) {
authentic = PriKey.pubkeyVerify(buildCryptBuffer, hexToBinBytes(this.signature1), this.vInfo, this.strength);
}
}
this.authentic = authentic;
this.authenticationAttempted = true;
if (!authentic) {
throw new FlexlmLicenseElementException(-8, 4048, this.filename, this.lineNumber, this.lineText, this.name);
}
}字节码修改位置，将如下位置的变量修改就可以了 F: ICONST_1 ISTORE 6 EX_START_3: GETSTATIC com/macrovision/flexlm/lictext/LicenseElement.urlList [Ljava/net/URL; IFNONNULL EX_END_3 因为变量赋值在这个位置 ALOAD this ILOAD 6 PUTFIELD com/macrovision/flexlm/lictext/LicenseElement.authentic Z
最后于 2024-10-25 15:34
被UnicornMaker编辑
，原因：
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