Question: Is Java decompiler legal?

Is decompiling possible?

A decompiler is a computer program translates an executable file in to a high-level source file which can be recompiled successfully. Decompilers are usually unable to perfectly reconstruct the original source code, thus frequently would produce obfuscated code. …

Can you decompile software?

It is your right to decompile any software your purchase or freeware you download as long as you do not redistribute it or sell it to third parties. It is also legal to talk about your discoveries.

Is reverse engineering an app illegal?

In the U.S., Section 103(f) of the Digital Millennium Copyright Act (DMCA) (17 USC § 1201 (f) – Reverse Engineering) specifically states that it is legal to reverse engineer and circumvent the protection to achieve interoperability between computer programs (such as information transfer between applications).

Is Java easy to decompile?

Java is relatively easy to decompile back into legal Java code and with the abundance of programs capable of doing so it should definitely be a deciding factor whether to make use of Java for desktop applications.

Are Decompilers legal?

Decompiling is absolutely LEGAL, regardless of what the shills say. At most, you can be sued for unauthorized activity relating to software unless you’re redistributing it.

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Can you decompile C++ code?

Yes, but none of them will manage to produce readable enough code to worth the effort. You will spend more time trying to read the decompiled source with assembler blocks inside, than rewriting your old app from scratch. I haven’t seen any decompilers that generate C++ code.

Can I decompile a third party software?

4 Answers. I see this question is still driving traffic to my blog, so I’ll add an answer: yes, debugging 3rd-party assemblies is now possible with the JetBrains dotPeek decompiler (completely free), by using it as a Symbol server.

Is it possible to decompile a game?

Soon most likely in 1-2 years time the decompilers will get so advanced that they will be able to decompile any game down to the best source code interpretation.

Why reverse engineering is bad?

Because reverse engineering can be used to reconstruct source code, it walks a fine line in intellectual property law. Many software license agreements strictly forbid reverse engineering. … A law completely outlawing reverse engineering would be like a law making it illegal to open the hood of your car to repair it.

Can you get sued for reverse engineering?

Yes. Even if you did nothing illegal you can be sued.

Can you legally reverse engineer?

Reverse engineering is generally legal. In trade secret law, similar to independent developing, reverse engineering is considered an allowed method to discover a trade secret. However, in patent law, because the patent owner has exclusive rights to use, own or develop the patent, reverse engineering is not a defense.

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Why Java can be decompiled?

2 Answers. Because Java byte-code is closer (more similar) to the source than assembly. In particular, . class files include metadata for classnames, method names, field & parameter types, etc…

Why is .NET easily decompile?

The higher level the bytecode works at, the easier reverse engineering is, generally speaking. C# and IL nearly map one-to-one. (This is less so with some newer C# 3.0 features.) The closeness of the mapping (and the lack of an optimizer in the C# compiler) makes things so ‘reversible’.