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FlexNet / FlexLM with Java
Hi,
I'm trying to understand how FlexNet works and of course find out the vendor keys. Note: Application is based on short sign (-> no ECC!) and accepts HostID=ANY Well, I've searched for the FlexNet routines inside the native executables but didn't found any. The FlexNet routines seem to be implemented in Java. I've found a class file (c.class) in one of the JARs, which contains the following lines: Code:
private static final String a = "LMCOMSOL.opt"; private static final String b = "VENDOR LMCOMSOL"; private static final String c = "USER_BASED"; In this class file, there are two methods JD-GUI cannot decompile (it shows the byte code). Do you think I should try to reverse engineer these two methods? I guess it's likely, that it contains the logic. Also, has anyone ever dealt with Java based FlexNet? Are there any tricks to find out the vendor keys? Cheers! //EDIT: Tried different decompiler for Java (CFR) Error for method: Code:
This method has failed to decompile. [...] org.benf.cfr.reader.util.ConfusedCFRException: Tried to end blocks [1[TRYBLOCK]], but top level block is 13[DOLOOP] //EDIT 2: Oops. CFR is able to decompile the methods JD cannot ("b"), however there is one method ("c") that JD can decompile but CFR not. Last edited by java3ever; 07-23-2018 at 19:52. |
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